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Posted to issues@stdcxx.apache.org by "Travis Vitek (JIRA)" <ji...@apache.org> on 2008/04/09 19:21:24 UTC
[jira] Created: (STDCXX-845) [XLC++ 7,8,9] SEGV in
22.locale.messages.mt
[XLC++ 7,8,9] SEGV in 22.locale.messages.mt
-------------------------------------------
Key: STDCXX-845
URL: https://issues.apache.org/jira/browse/STDCXX-845
Project: C++ Standard Library
Issue Type: Bug
Components: Locales
Affects Versions: 4.2.1
Environment: AIX 5.3 PowerPC IBM XLC++ 9.0
AIX 5.3 PowerPC IBM XLC++ 8.0
AIX 5.3 PowerPC IBM XLC++ 7.0
Reporter: Travis Vitek
Fix For: 4.2.1
On AIX, when compiled with XLC++ the test 22.locale.messages.mt fails with {{SIGSEGV}} or {{SIGABRT}}.
{{SIGSEGV}} on XLC++ 7.0 for 12a, 12d
{{SIGABRT}} on XLC++ 7.0 for 15a, 15s, 15S
{{SIGSEGV}} on XLC++ 8.0 for 12a, 12d, 12D, 15a, 15A
{{SIGABRT}} on XLC++ 8.0 for 15S
{{SIGSEGV}} on XLC++ 9.0 for 12a, 15a, 15A
{{SIGABRT}} on XLC++ 9.0 for 15s
Here is the output for a 12S build...
{noformat}
$ dbx 22.locale.messages.mt
# INFO (S1) (10 lines):
# TEXT:
# COMPILER: IBM VisualAge C++, __IBMCPP__ = 900
# ENVIRONMENT: powerpc/LP64 running aix-5.3
# FILE: 22.locale.messages.mt.cpp
# COMPILED: Apr 9 2008, 16:38:10
# COMMENT: thread safety
############################################################
# CLAUSE: lib.locale.messages
# NOTE (S2) (5 lines):
# TEXT: executing "gencat rwstdmessages.cat rwstdmessages.msg"
# CLAUSE: lib.locale.messages
# FILE: process.cpp
# LINE: 279
# INFO (S1) (3 lines):
# TEXT: testing std::messages<charT> with 8 threads, 100000 iterations each
# CLAUSE: lib.locale.messages
# INFO (S1) (3 lines):
# TEXT: exercising std::messages<char>
# CLAUSE: lib.locale.messages
Segmentation fault (core dumped)
$ dbx 22.locale.messages.mt
Type 'help' for help.
[using memory image in core]
reading symbolic information ...
Segmentation fault in strchr.strchr at 0x900000000048ec0 ($t2)
0x900000000048ec0 (strchr+0x140) 8d230001 lbzu r9,0x1(r3)
(dbx) where
strchr.strchr() at 0x900000000048ec0
_C_get_std_facet(__rw::__rw_facet::_C_facet_type,__rw::__rw_facet*(*)(unsigned long,const char*)) const() at 0x100027970
__rw_get_facet_by_id__4__rwFRCQ2_3std6localeRCQ2_4__rw13__rw_facet_idPCQ2_3std7codecvtXTcTcTPc_@AF18_13() at 0x100070e54
do_get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x1000373ec
get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x100037178
22.locale.messages.mt.void test_get<char>(const std::messages<char>&,int,int,int,const std::basic_string<char,std::char_traits<char>,std::allocator<char> >&)(msgs = &(...), cat = 0, set = 4, msgid = 4, dflt = &(...)), line 153 in "22.locale.messages.mt.cpp"
unnamed block in thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
(dbx) quit
{noformat}
This is a new test for 4.2.1, so it is a regression.
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[jira] Commented: (STDCXX-845) [XLC++ 7,8,9] SEGV in
22.locale.messages.mt
Posted by "Travis Vitek (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12594268#action_12594268 ]
Travis Vitek commented on STDCXX-845:
-------------------------------------
Ah, that comment about using atomics or pthread_once was a note to myself that I forgot to remove. It isn't necessary to guard the initialization because the function is always called under the protection of a mutex held by the caller. I just forgot to remove the comment after doing the necessary research.
You are correct. The test does not exercise the locale cache. Perhaps it should?
> [XLC++ 7,8,9] SEGV in 22.locale.messages.mt
> -------------------------------------------
>
> Key: STDCXX-845
> URL: https://issues.apache.org/jira/browse/STDCXX-845
> Project: C++ Standard Library
> Issue Type: Bug
> Components: 22. Localization
> Affects Versions: 4.2.1
> Environment: AIX 5.3 PowerPC IBM XLC++ 9.0
> AIX 5.3 PowerPC IBM XLC++ 8.0
> AIX 5.3 PowerPC IBM XLC++ 7.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Fix For: 4.2.2
>
> Attachments: stdcxx-845.patch
>
> Original Estimate: 4h
> Time Spent: 9h
> Remaining Estimate: 0h
>
> On AIX, when compiled with XLC++ the test 22.locale.messages.mt fails with {{SIGSEGV}} or {{SIGABRT}}.
> {{SIGSEGV}} on XLC++ 7.0 for 12a, 12d
> {{SIGABRT}} on XLC++ 7.0 for 15a, 15s, 15S
> {{SIGSEGV}} on XLC++ 8.0 for 12a, 12d, 12D, 15a, 15A
> {{SIGABRT}} on XLC++ 8.0 for 15S
> {{SIGSEGV}} on XLC++ 9.0 for 12a, 15a, 15A
> {{SIGABRT}} on XLC++ 9.0 for 15s
> Here is the output for a 12S build...
> {noformat}
> $ dbx 22.locale.messages.mt
> # INFO (S1) (10 lines):
> # TEXT:
> # COMPILER: IBM VisualAge C++, __IBMCPP__ = 900
> # ENVIRONMENT: powerpc/LP64 running aix-5.3
> # FILE: 22.locale.messages.mt.cpp
> # COMPILED: Apr 9 2008, 16:38:10
> # COMMENT: thread safety
> ############################################################
> # CLAUSE: lib.locale.messages
> # NOTE (S2) (5 lines):
> # TEXT: executing "gencat rwstdmessages.cat rwstdmessages.msg"
> # CLAUSE: lib.locale.messages
> # FILE: process.cpp
> # LINE: 279
> # INFO (S1) (3 lines):
> # TEXT: testing std::messages<charT> with 8 threads, 100000 iterations each
> # CLAUSE: lib.locale.messages
> # INFO (S1) (3 lines):
> # TEXT: exercising std::messages<char>
> # CLAUSE: lib.locale.messages
> Segmentation fault (core dumped)
> $ dbx 22.locale.messages.mt
> Type 'help' for help.
> [using memory image in core]
> reading symbolic information ...
> Segmentation fault in strchr.strchr at 0x900000000048ec0 ($t2)
> 0x900000000048ec0 (strchr+0x140) 8d230001 lbzu r9,0x1(r3)
> (dbx) where
> strchr.strchr() at 0x900000000048ec0
> _C_get_std_facet(__rw::__rw_facet::_C_facet_type,__rw::__rw_facet*(*)(unsigned long,const char*)) const() at 0x100027970
> __rw_get_facet_by_id__4__rwFRCQ2_3std6localeRCQ2_4__rw13__rw_facet_idPCQ2_3std7codecvtXTcTcTPc_@AF18_13() at 0x100070e54
> do_get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x1000373ec
> get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x100037178
> 22.locale.messages.mt.void test_get<char>( \
> const std::messages<char>&,int,int,int,const std::basic_string<char,std::char_traits<char>,std::allocator<char> >&) \
> (msgs = &(...), cat = 0, set = 4, msgid = 4, dflt = &(...)), line 153 in "22.locale.messages.mt.cpp"
> unnamed block in thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> (dbx) quit
> {noformat}
> This is a new test for 4.2.1, so it is a regression.
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[jira] Updated: (STDCXX-845) [XLC++ 7,8,9] SEGV in
22.locale.messages.mt
Posted by "Martin Sebor (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-845?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Martin Sebor updated STDCXX-845:
--------------------------------
Fix Version/s: (was: 4.2.1)
4.2.2
Assignee: Travis Vitek
This is Travis' but it's too risky to fix in 4.2.1. Deferred until 4.2.2.
> [XLC++ 7,8,9] SEGV in 22.locale.messages.mt
> -------------------------------------------
>
> Key: STDCXX-845
> URL: https://issues.apache.org/jira/browse/STDCXX-845
> Project: C++ Standard Library
> Issue Type: Bug
> Components: 22. Localization
> Affects Versions: 4.2.1
> Environment: AIX 5.3 PowerPC IBM XLC++ 9.0
> AIX 5.3 PowerPC IBM XLC++ 8.0
> AIX 5.3 PowerPC IBM XLC++ 7.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Fix For: 4.2.2
>
> Original Estimate: 4h
> Time Spent: 4h
> Remaining Estimate: 4h
>
> On AIX, when compiled with XLC++ the test 22.locale.messages.mt fails with {{SIGSEGV}} or {{SIGABRT}}.
> {{SIGSEGV}} on XLC++ 7.0 for 12a, 12d
> {{SIGABRT}} on XLC++ 7.0 for 15a, 15s, 15S
> {{SIGSEGV}} on XLC++ 8.0 for 12a, 12d, 12D, 15a, 15A
> {{SIGABRT}} on XLC++ 8.0 for 15S
> {{SIGSEGV}} on XLC++ 9.0 for 12a, 15a, 15A
> {{SIGABRT}} on XLC++ 9.0 for 15s
> Here is the output for a 12S build...
> {noformat}
> $ dbx 22.locale.messages.mt
> # INFO (S1) (10 lines):
> # TEXT:
> # COMPILER: IBM VisualAge C++, __IBMCPP__ = 900
> # ENVIRONMENT: powerpc/LP64 running aix-5.3
> # FILE: 22.locale.messages.mt.cpp
> # COMPILED: Apr 9 2008, 16:38:10
> # COMMENT: thread safety
> ############################################################
> # CLAUSE: lib.locale.messages
> # NOTE (S2) (5 lines):
> # TEXT: executing "gencat rwstdmessages.cat rwstdmessages.msg"
> # CLAUSE: lib.locale.messages
> # FILE: process.cpp
> # LINE: 279
> # INFO (S1) (3 lines):
> # TEXT: testing std::messages<charT> with 8 threads, 100000 iterations each
> # CLAUSE: lib.locale.messages
> # INFO (S1) (3 lines):
> # TEXT: exercising std::messages<char>
> # CLAUSE: lib.locale.messages
> Segmentation fault (core dumped)
> $ dbx 22.locale.messages.mt
> Type 'help' for help.
> [using memory image in core]
> reading symbolic information ...
> Segmentation fault in strchr.strchr at 0x900000000048ec0 ($t2)
> 0x900000000048ec0 (strchr+0x140) 8d230001 lbzu r9,0x1(r3)
> (dbx) where
> strchr.strchr() at 0x900000000048ec0
> _C_get_std_facet(__rw::__rw_facet::_C_facet_type,__rw::__rw_facet*(*)(unsigned long,const char*)) const() at 0x100027970
> __rw_get_facet_by_id__4__rwFRCQ2_3std6localeRCQ2_4__rw13__rw_facet_idPCQ2_3std7codecvtXTcTcTPc_@AF18_13() at 0x100070e54
> do_get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x1000373ec
> get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x100037178
> 22.locale.messages.mt.void test_get<char>( \
> const std::messages<char>&,int,int,int,const std::basic_string<char,std::char_traits<char>,std::allocator<char> >&) \
> (msgs = &(...), cat = 0, set = 4, msgid = 4, dflt = &(...)), line 153 in "22.locale.messages.mt.cpp"
> unnamed block in thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> (dbx) quit
> {noformat}
> This is a new test for 4.2.1, so it is a regression.
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[jira] Commented: (STDCXX-845) [XLC++ 7,8,9] SEGV in
22.locale.messages.mt
Posted by "Travis Vitek (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12593951#action_12593951 ]
Travis Vitek commented on STDCXX-845:
-------------------------------------
So now I have a question that relates to this change and branching. I
mention an inefficiency in std::messages<charT>::do_get() [see
STDCXX-845 comments], and I have a fix that is not appropriate for
4.2.2, but is appropriate for 4.3 [adding a new function]. The fix also
involves removing two functions from the library, which would only be
appropriate for 5.0.
So how should I handle this? Should I submit the above fix to 4.2.2,
merge that to 4.3, apply a new patch to 4.3, then merge that to 5.0 and
then remove the old functions? Or should I submit to 4.2.2, merge to
4.3, apply a patch to 4.3 that will automatically remove the deprecated
functions and then let that get merged to 5.0 on its own?
I guess another option would be to file bugs for each of the issues and
handle them in the release that they are assigned to, but it would be
nice to not have to take a refresher course every six months.
Travis
> [XLC++ 7,8,9] SEGV in 22.locale.messages.mt
> -------------------------------------------
>
> Key: STDCXX-845
> URL: https://issues.apache.org/jira/browse/STDCXX-845
> Project: C++ Standard Library
> Issue Type: Bug
> Components: 22. Localization
> Affects Versions: 4.2.1
> Environment: AIX 5.3 PowerPC IBM XLC++ 9.0
> AIX 5.3 PowerPC IBM XLC++ 8.0
> AIX 5.3 PowerPC IBM XLC++ 7.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Fix For: 4.2.2
>
> Attachments: stdcxx-845.patch
>
> Original Estimate: 4h
> Time Spent: 6h
> Remaining Estimate: 2h
>
> On AIX, when compiled with XLC++ the test 22.locale.messages.mt fails with {{SIGSEGV}} or {{SIGABRT}}.
> {{SIGSEGV}} on XLC++ 7.0 for 12a, 12d
> {{SIGABRT}} on XLC++ 7.0 for 15a, 15s, 15S
> {{SIGSEGV}} on XLC++ 8.0 for 12a, 12d, 12D, 15a, 15A
> {{SIGABRT}} on XLC++ 8.0 for 15S
> {{SIGSEGV}} on XLC++ 9.0 for 12a, 15a, 15A
> {{SIGABRT}} on XLC++ 9.0 for 15s
> Here is the output for a 12S build...
> {noformat}
> $ dbx 22.locale.messages.mt
> # INFO (S1) (10 lines):
> # TEXT:
> # COMPILER: IBM VisualAge C++, __IBMCPP__ = 900
> # ENVIRONMENT: powerpc/LP64 running aix-5.3
> # FILE: 22.locale.messages.mt.cpp
> # COMPILED: Apr 9 2008, 16:38:10
> # COMMENT: thread safety
> ############################################################
> # CLAUSE: lib.locale.messages
> # NOTE (S2) (5 lines):
> # TEXT: executing "gencat rwstdmessages.cat rwstdmessages.msg"
> # CLAUSE: lib.locale.messages
> # FILE: process.cpp
> # LINE: 279
> # INFO (S1) (3 lines):
> # TEXT: testing std::messages<charT> with 8 threads, 100000 iterations each
> # CLAUSE: lib.locale.messages
> # INFO (S1) (3 lines):
> # TEXT: exercising std::messages<char>
> # CLAUSE: lib.locale.messages
> Segmentation fault (core dumped)
> $ dbx 22.locale.messages.mt
> Type 'help' for help.
> [using memory image in core]
> reading symbolic information ...
> Segmentation fault in strchr.strchr at 0x900000000048ec0 ($t2)
> 0x900000000048ec0 (strchr+0x140) 8d230001 lbzu r9,0x1(r3)
> (dbx) where
> strchr.strchr() at 0x900000000048ec0
> _C_get_std_facet(__rw::__rw_facet::_C_facet_type,__rw::__rw_facet*(*)(unsigned long,const char*)) const() at 0x100027970
> __rw_get_facet_by_id__4__rwFRCQ2_3std6localeRCQ2_4__rw13__rw_facet_idPCQ2_3std7codecvtXTcTcTPc_@AF18_13() at 0x100070e54
> do_get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x1000373ec
> get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x100037178
> 22.locale.messages.mt.void test_get<char>( \
> const std::messages<char>&,int,int,int,const std::basic_string<char,std::char_traits<char>,std::allocator<char> >&) \
> (msgs = &(...), cat = 0, set = 4, msgid = 4, dflt = &(...)), line 153 in "22.locale.messages.mt.cpp"
> unnamed block in thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> (dbx) quit
> {noformat}
> This is a new test for 4.2.1, so it is a regression.
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[jira] Commented: (STDCXX-845) [XLC++ 7,8,9] SEGV in
22.locale.messages.mt
Posted by "Martin Sebor (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12594311#action_12594311 ]
Martin Sebor commented on STDCXX-845:
-------------------------------------
I see. So the test does, in fact, exercise the cache. It just doesn't necessarily exercise its reallocation, unless it runs enough threads. Maybe we should enhance the test to have each thread open more than 1 catalog.
Btw., it also occurs to me that a more efficient implementation of the facet might be possible: instead of having each call to {{messages::open()}} with the same name open a new catalog (and allocate a file descriptor) we could check to see if the same catalog is already open and if so return the cached handle. If we should implement this enhancement the test should also be enhanced to manipulate at least some distinct catalogs.
> [XLC++ 7,8,9] SEGV in 22.locale.messages.mt
> -------------------------------------------
>
> Key: STDCXX-845
> URL: https://issues.apache.org/jira/browse/STDCXX-845
> Project: C++ Standard Library
> Issue Type: Bug
> Components: 22. Localization
> Affects Versions: 4.2.1
> Environment: AIX 5.3 PowerPC IBM XLC++ 9.0
> AIX 5.3 PowerPC IBM XLC++ 8.0
> AIX 5.3 PowerPC IBM XLC++ 7.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Fix For: 4.2.2
>
> Attachments: stdcxx-845.patch
>
> Original Estimate: 4h
> Time Spent: 9h
> Remaining Estimate: 0h
>
> On AIX, when compiled with XLC++ the test 22.locale.messages.mt fails with {{SIGSEGV}} or {{SIGABRT}}.
> {{SIGSEGV}} on XLC++ 7.0 for 12a, 12d
> {{SIGABRT}} on XLC++ 7.0 for 15a, 15s, 15S
> {{SIGSEGV}} on XLC++ 8.0 for 12a, 12d, 12D, 15a, 15A
> {{SIGABRT}} on XLC++ 8.0 for 15S
> {{SIGSEGV}} on XLC++ 9.0 for 12a, 15a, 15A
> {{SIGABRT}} on XLC++ 9.0 for 15s
> Here is the output for a 12S build...
> {noformat}
> $ dbx 22.locale.messages.mt
> # INFO (S1) (10 lines):
> # TEXT:
> # COMPILER: IBM VisualAge C++, __IBMCPP__ = 900
> # ENVIRONMENT: powerpc/LP64 running aix-5.3
> # FILE: 22.locale.messages.mt.cpp
> # COMPILED: Apr 9 2008, 16:38:10
> # COMMENT: thread safety
> ############################################################
> # CLAUSE: lib.locale.messages
> # NOTE (S2) (5 lines):
> # TEXT: executing "gencat rwstdmessages.cat rwstdmessages.msg"
> # CLAUSE: lib.locale.messages
> # FILE: process.cpp
> # LINE: 279
> # INFO (S1) (3 lines):
> # TEXT: testing std::messages<charT> with 8 threads, 100000 iterations each
> # CLAUSE: lib.locale.messages
> # INFO (S1) (3 lines):
> # TEXT: exercising std::messages<char>
> # CLAUSE: lib.locale.messages
> Segmentation fault (core dumped)
> $ dbx 22.locale.messages.mt
> Type 'help' for help.
> [using memory image in core]
> reading symbolic information ...
> Segmentation fault in strchr.strchr at 0x900000000048ec0 ($t2)
> 0x900000000048ec0 (strchr+0x140) 8d230001 lbzu r9,0x1(r3)
> (dbx) where
> strchr.strchr() at 0x900000000048ec0
> _C_get_std_facet(__rw::__rw_facet::_C_facet_type,__rw::__rw_facet*(*)(unsigned long,const char*)) const() at 0x100027970
> __rw_get_facet_by_id__4__rwFRCQ2_3std6localeRCQ2_4__rw13__rw_facet_idPCQ2_3std7codecvtXTcTcTPc_@AF18_13() at 0x100070e54
> do_get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x1000373ec
> get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x100037178
> 22.locale.messages.mt.void test_get<char>( \
> const std::messages<char>&,int,int,int,const std::basic_string<char,std::char_traits<char>,std::allocator<char> >&) \
> (msgs = &(...), cat = 0, set = 4, msgid = 4, dflt = &(...)), line 153 in "22.locale.messages.mt.cpp"
> unnamed block in thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> (dbx) quit
> {noformat}
> This is a new test for 4.2.1, so it is a regression.
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[jira] Commented: (STDCXX-845) [XLC++ 7,8,9] SEGV in
22.locale.messages.mt
Posted by "Travis Vitek (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12598772#action_12598772 ]
Travis Vitek commented on STDCXX-845:
-------------------------------------
{{SIGHUP}} issue is now resolved. As it turns out, someone forgot to add code to test the soft timeout flag [see STDCXX-536] in the thread loop.
> [XLC++ 7,8,9] SEGV in 22.locale.messages.mt
> -------------------------------------------
>
> Key: STDCXX-845
> URL: https://issues.apache.org/jira/browse/STDCXX-845
> Project: C++ Standard Library
> Issue Type: Bug
> Components: 22. Localization
> Affects Versions: 4.2.1
> Environment: AIX 5.3 PowerPC IBM XLC++ 9.0
> AIX 5.3 PowerPC IBM XLC++ 8.0
> AIX 5.3 PowerPC IBM XLC++ 7.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Fix For: 4.2.2
>
> Attachments: stdcxx-845.patch
>
> Original Estimate: 4h
> Time Spent: 9h
> Remaining Estimate: 0h
>
> On AIX, when compiled with XLC++ the test 22.locale.messages.mt fails with {{SIGSEGV}} or {{SIGABRT}}.
> {{SIGSEGV}} on XLC++ 7.0 for 12a, 12d
> {{SIGABRT}} on XLC++ 7.0 for 15a, 15s, 15S
> {{SIGSEGV}} on XLC++ 8.0 for 12a, 12d, 12D, 15a, 15A
> {{SIGABRT}} on XLC++ 8.0 for 15S
> {{SIGSEGV}} on XLC++ 9.0 for 12a, 15a, 15A
> {{SIGABRT}} on XLC++ 9.0 for 15s
> Here is the output for a 12S build...
> {noformat}
> $ dbx 22.locale.messages.mt
> # INFO (S1) (10 lines):
> # TEXT:
> # COMPILER: IBM VisualAge C++, __IBMCPP__ = 900
> # ENVIRONMENT: powerpc/LP64 running aix-5.3
> # FILE: 22.locale.messages.mt.cpp
> # COMPILED: Apr 9 2008, 16:38:10
> # COMMENT: thread safety
> ############################################################
> # CLAUSE: lib.locale.messages
> # NOTE (S2) (5 lines):
> # TEXT: executing "gencat rwstdmessages.cat rwstdmessages.msg"
> # CLAUSE: lib.locale.messages
> # FILE: process.cpp
> # LINE: 279
> # INFO (S1) (3 lines):
> # TEXT: testing std::messages<charT> with 8 threads, 100000 iterations each
> # CLAUSE: lib.locale.messages
> # INFO (S1) (3 lines):
> # TEXT: exercising std::messages<char>
> # CLAUSE: lib.locale.messages
> Segmentation fault (core dumped)
> $ dbx 22.locale.messages.mt
> Type 'help' for help.
> [using memory image in core]
> reading symbolic information ...
> Segmentation fault in strchr.strchr at 0x900000000048ec0 ($t2)
> 0x900000000048ec0 (strchr+0x140) 8d230001 lbzu r9,0x1(r3)
> (dbx) where
> strchr.strchr() at 0x900000000048ec0
> _C_get_std_facet(__rw::__rw_facet::_C_facet_type,__rw::__rw_facet*(*)(unsigned long,const char*)) const() at 0x100027970
> __rw_get_facet_by_id__4__rwFRCQ2_3std6localeRCQ2_4__rw13__rw_facet_idPCQ2_3std7codecvtXTcTcTPc_@AF18_13() at 0x100070e54
> do_get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x1000373ec
> get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x100037178
> 22.locale.messages.mt.void test_get<char>( \
> const std::messages<char>&,int,int,int,const std::basic_string<char,std::char_traits<char>,std::allocator<char> >&) \
> (msgs = &(...), cat = 0, set = 4, msgid = 4, dflt = &(...)), line 153 in "22.locale.messages.mt.cpp"
> unnamed block in thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> (dbx) quit
> {noformat}
> This is a new test for 4.2.1, so it is a regression.
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[jira] Issue Comment Edited: (STDCXX-845) [XLC++ 7,8,9] SEGV in
22.locale.messages.mt
Posted by "Travis Vitek (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12591504#action_12591504 ]
vitek edited comment on STDCXX-845 at 4/22/08 6:27 PM:
--------------------------------------------------------------
One other issue that I see is that the {{\_STD::messages<T>::do_get()}} method might actually call {{\_\_rw_manage_cat_data()}} up to three times to search the cache. Since each search involves a mutex lock, there are going to be some wasted cycles. It would be nice to reduce this to one search. Perhaps the {{_RW::\_\_rw_get_message()}} function could be changed to fill in a pointer to the {{\_RW::\_\_rw_locale}} that is held by the {{\_STD::locale}} that is kept in the cache and the {{_RW::\_\_rw_get_locale()}} function could be removed.
So one way to fix this problem would be for the {{\_\_rw_get_locale()}} function to return the {{\_RW::\_\_rw_locale*}} that is held internally by the {{\_STD::locale}} instance or for {{\_\_rw_open_cat_data}} to cache the body pointer directly. This would work, except that we'd have to provide an internal implementation of {{\_STD::use_facet()}} that would take {{\_RW::\_\_rw_locale*}}s so we could avoid creating additinal temporaries and doing unnecessary reference counting.
One last thing I thought I'd mention. The {{\_\_rw_manage_cat_data()}} function does something that I would normally try to avoid. In order to avoid doing unnecessary reference counting, calling the {{\_STD::locale}} copy constructor and destructor, and duplicating the code for deallocating the locale body, it uses {{memcpy()}} to copy buffers that contain {{\_STD::locale}} objects. It also uses placement new and explicitly calls the destructor of the {{\_STD::locale}} class when inserting and removing cache entries. While I'm certain that this is all fine, it just seems dirty to me.
was (Author: vitek):
One other issue that I see is that the {{_STD::messages<T>::do_get()}} method might actually call {{\_\_rw_manage_cat_data()}} up to three times to search the cache. Since each search involves a mutex lock, there are going to be some wasted cycles. It would be nice to reduce this to one search. Perhaps the {{_RW::__rw_get_message()}} function could be changed to fill in a pointer to the {{_RW::\_\_rw_locale}} that is held by the {{_STD::locale}} that is kept in the cache and the {{_RW::\_\_rw_get_locale()}} function could be removed.
So one way to fix this problem would be for the {{\_\_rw_get_locale()}} function to return the {{_RW::\_\_rw_locale*}} that is held internally by the {{_STD::locale}} instance or for {{\_\_rw_open_cat_data}} to cache the body pointer directly. This would work, except that we'd have to provide an internal implementation of {{_STD::use_facet()}} that would take {{_RW::\_\_rw_locale*}}s so we could avoid creating additinal temporaries and doing unnecessary reference counting.
One last thing I thought I'd mention. The {{\_\_rw_manage_cat_data()}} function does something that I would normally try to avoid. In order to avoid doing unnecessary reference counting, calling the {{_STD::locale}} copy constructor and destructor, and duplicating the code for deallocating the locale body, it uses {{memcpy()}} to copy buffers that contain {{_STD::locale}} objects. It also uses placement new and explicitly calls the destructor of the {{_STD::locale}} class when inserting and removing cache entries. While I'm certain that this is all fine, it just seems dirty to me.
> [XLC++ 7,8,9] SEGV in 22.locale.messages.mt
> -------------------------------------------
>
> Key: STDCXX-845
> URL: https://issues.apache.org/jira/browse/STDCXX-845
> Project: C++ Standard Library
> Issue Type: Bug
> Components: Locales
> Affects Versions: 4.2.1
> Environment: AIX 5.3 PowerPC IBM XLC++ 9.0
> AIX 5.3 PowerPC IBM XLC++ 8.0
> AIX 5.3 PowerPC IBM XLC++ 7.0
> Reporter: Travis Vitek
> Fix For: 4.2.1
>
> Original Estimate: 4h
> Time Spent: 4h
> Remaining Estimate: 4h
>
> On AIX, when compiled with XLC++ the test 22.locale.messages.mt fails with {{SIGSEGV}} or {{SIGABRT}}.
> {{SIGSEGV}} on XLC++ 7.0 for 12a, 12d
> {{SIGABRT}} on XLC++ 7.0 for 15a, 15s, 15S
> {{SIGSEGV}} on XLC++ 8.0 for 12a, 12d, 12D, 15a, 15A
> {{SIGABRT}} on XLC++ 8.0 for 15S
> {{SIGSEGV}} on XLC++ 9.0 for 12a, 15a, 15A
> {{SIGABRT}} on XLC++ 9.0 for 15s
> Here is the output for a 12S build...
> {noformat}
> $ dbx 22.locale.messages.mt
> # INFO (S1) (10 lines):
> # TEXT:
> # COMPILER: IBM VisualAge C++, __IBMCPP__ = 900
> # ENVIRONMENT: powerpc/LP64 running aix-5.3
> # FILE: 22.locale.messages.mt.cpp
> # COMPILED: Apr 9 2008, 16:38:10
> # COMMENT: thread safety
> ############################################################
> # CLAUSE: lib.locale.messages
> # NOTE (S2) (5 lines):
> # TEXT: executing "gencat rwstdmessages.cat rwstdmessages.msg"
> # CLAUSE: lib.locale.messages
> # FILE: process.cpp
> # LINE: 279
> # INFO (S1) (3 lines):
> # TEXT: testing std::messages<charT> with 8 threads, 100000 iterations each
> # CLAUSE: lib.locale.messages
> # INFO (S1) (3 lines):
> # TEXT: exercising std::messages<char>
> # CLAUSE: lib.locale.messages
> Segmentation fault (core dumped)
> $ dbx 22.locale.messages.mt
> Type 'help' for help.
> [using memory image in core]
> reading symbolic information ...
> Segmentation fault in strchr.strchr at 0x900000000048ec0 ($t2)
> 0x900000000048ec0 (strchr+0x140) 8d230001 lbzu r9,0x1(r3)
> (dbx) where
> strchr.strchr() at 0x900000000048ec0
> _C_get_std_facet(__rw::__rw_facet::_C_facet_type,__rw::__rw_facet*(*)(unsigned long,const char*)) const() at 0x100027970
> __rw_get_facet_by_id__4__rwFRCQ2_3std6localeRCQ2_4__rw13__rw_facet_idPCQ2_3std7codecvtXTcTcTPc_@AF18_13() at 0x100070e54
> do_get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x1000373ec
> get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x100037178
> 22.locale.messages.mt.void test_get<char>(const std::messages<char>&,int,int,int,const std::basic_string<char,std::char_traits<char>,std::allocator<char> >&)(msgs = &(...), cat = 0, set = 4, msgid = 4, dflt = &(...)), line 153 in "22.locale.messages.mt.cpp"
> unnamed block in thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> (dbx) quit
> {noformat}
> This is a new test for 4.2.1, so it is a regression.
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[jira] Resolved: (STDCXX-845) [XLC++ 7,8,9] SEGV in
22.locale.messages.mt
Posted by "Travis Vitek (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-845?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Travis Vitek resolved STDCXX-845.
---------------------------------
Resolution: Fixed
> [XLC++ 7,8,9] SEGV in 22.locale.messages.mt
> -------------------------------------------
>
> Key: STDCXX-845
> URL: https://issues.apache.org/jira/browse/STDCXX-845
> Project: C++ Standard Library
> Issue Type: Bug
> Components: 22. Localization
> Affects Versions: 4.2.1
> Environment: AIX 5.3 PowerPC IBM XLC++ 9.0
> AIX 5.3 PowerPC IBM XLC++ 8.0
> AIX 5.3 PowerPC IBM XLC++ 7.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Fix For: 4.2.2
>
> Attachments: stdcxx-845.patch
>
> Original Estimate: 4h
> Time Spent: 9h
> Remaining Estimate: 0h
>
> On AIX, when compiled with XLC++ the test 22.locale.messages.mt fails with {{SIGSEGV}} or {{SIGABRT}}.
> {{SIGSEGV}} on XLC++ 7.0 for 12a, 12d
> {{SIGABRT}} on XLC++ 7.0 for 15a, 15s, 15S
> {{SIGSEGV}} on XLC++ 8.0 for 12a, 12d, 12D, 15a, 15A
> {{SIGABRT}} on XLC++ 8.0 for 15S
> {{SIGSEGV}} on XLC++ 9.0 for 12a, 15a, 15A
> {{SIGABRT}} on XLC++ 9.0 for 15s
> Here is the output for a 12S build...
> {noformat}
> $ dbx 22.locale.messages.mt
> # INFO (S1) (10 lines):
> # TEXT:
> # COMPILER: IBM VisualAge C++, __IBMCPP__ = 900
> # ENVIRONMENT: powerpc/LP64 running aix-5.3
> # FILE: 22.locale.messages.mt.cpp
> # COMPILED: Apr 9 2008, 16:38:10
> # COMMENT: thread safety
> ############################################################
> # CLAUSE: lib.locale.messages
> # NOTE (S2) (5 lines):
> # TEXT: executing "gencat rwstdmessages.cat rwstdmessages.msg"
> # CLAUSE: lib.locale.messages
> # FILE: process.cpp
> # LINE: 279
> # INFO (S1) (3 lines):
> # TEXT: testing std::messages<charT> with 8 threads, 100000 iterations each
> # CLAUSE: lib.locale.messages
> # INFO (S1) (3 lines):
> # TEXT: exercising std::messages<char>
> # CLAUSE: lib.locale.messages
> Segmentation fault (core dumped)
> $ dbx 22.locale.messages.mt
> Type 'help' for help.
> [using memory image in core]
> reading symbolic information ...
> Segmentation fault in strchr.strchr at 0x900000000048ec0 ($t2)
> 0x900000000048ec0 (strchr+0x140) 8d230001 lbzu r9,0x1(r3)
> (dbx) where
> strchr.strchr() at 0x900000000048ec0
> _C_get_std_facet(__rw::__rw_facet::_C_facet_type,__rw::__rw_facet*(*)(unsigned long,const char*)) const() at 0x100027970
> __rw_get_facet_by_id__4__rwFRCQ2_3std6localeRCQ2_4__rw13__rw_facet_idPCQ2_3std7codecvtXTcTcTPc_@AF18_13() at 0x100070e54
> do_get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x1000373ec
> get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x100037178
> 22.locale.messages.mt.void test_get<char>( \
> const std::messages<char>&,int,int,int,const std::basic_string<char,std::char_traits<char>,std::allocator<char> >&) \
> (msgs = &(...), cat = 0, set = 4, msgid = 4, dflt = &(...)), line 153 in "22.locale.messages.mt.cpp"
> unnamed block in thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> (dbx) quit
> {noformat}
> This is a new test for 4.2.1, so it is a regression.
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[jira] Updated: (STDCXX-845) [XLC++ 7,8,9] SEGV in
22.locale.messages.mt
Posted by "Travis Vitek (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-845?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Travis Vitek updated STDCXX-845:
--------------------------------
Attachment: (was: stdcxx-845.patch)
> [XLC++ 7,8,9] SEGV in 22.locale.messages.mt
> -------------------------------------------
>
> Key: STDCXX-845
> URL: https://issues.apache.org/jira/browse/STDCXX-845
> Project: C++ Standard Library
> Issue Type: Bug
> Components: 22. Localization
> Affects Versions: 4.2.1
> Environment: AIX 5.3 PowerPC IBM XLC++ 9.0
> AIX 5.3 PowerPC IBM XLC++ 8.0
> AIX 5.3 PowerPC IBM XLC++ 7.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Fix For: 4.2.2
>
> Attachments: stdcxx-845.patch
>
> Original Estimate: 4h
> Time Spent: 6h
> Remaining Estimate: 2h
>
> On AIX, when compiled with XLC++ the test 22.locale.messages.mt fails with {{SIGSEGV}} or {{SIGABRT}}.
> {{SIGSEGV}} on XLC++ 7.0 for 12a, 12d
> {{SIGABRT}} on XLC++ 7.0 for 15a, 15s, 15S
> {{SIGSEGV}} on XLC++ 8.0 for 12a, 12d, 12D, 15a, 15A
> {{SIGABRT}} on XLC++ 8.0 for 15S
> {{SIGSEGV}} on XLC++ 9.0 for 12a, 15a, 15A
> {{SIGABRT}} on XLC++ 9.0 for 15s
> Here is the output for a 12S build...
> {noformat}
> $ dbx 22.locale.messages.mt
> # INFO (S1) (10 lines):
> # TEXT:
> # COMPILER: IBM VisualAge C++, __IBMCPP__ = 900
> # ENVIRONMENT: powerpc/LP64 running aix-5.3
> # FILE: 22.locale.messages.mt.cpp
> # COMPILED: Apr 9 2008, 16:38:10
> # COMMENT: thread safety
> ############################################################
> # CLAUSE: lib.locale.messages
> # NOTE (S2) (5 lines):
> # TEXT: executing "gencat rwstdmessages.cat rwstdmessages.msg"
> # CLAUSE: lib.locale.messages
> # FILE: process.cpp
> # LINE: 279
> # INFO (S1) (3 lines):
> # TEXT: testing std::messages<charT> with 8 threads, 100000 iterations each
> # CLAUSE: lib.locale.messages
> # INFO (S1) (3 lines):
> # TEXT: exercising std::messages<char>
> # CLAUSE: lib.locale.messages
> Segmentation fault (core dumped)
> $ dbx 22.locale.messages.mt
> Type 'help' for help.
> [using memory image in core]
> reading symbolic information ...
> Segmentation fault in strchr.strchr at 0x900000000048ec0 ($t2)
> 0x900000000048ec0 (strchr+0x140) 8d230001 lbzu r9,0x1(r3)
> (dbx) where
> strchr.strchr() at 0x900000000048ec0
> _C_get_std_facet(__rw::__rw_facet::_C_facet_type,__rw::__rw_facet*(*)(unsigned long,const char*)) const() at 0x100027970
> __rw_get_facet_by_id__4__rwFRCQ2_3std6localeRCQ2_4__rw13__rw_facet_idPCQ2_3std7codecvtXTcTcTPc_@AF18_13() at 0x100070e54
> do_get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x1000373ec
> get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x100037178
> 22.locale.messages.mt.void test_get<char>( \
> const std::messages<char>&,int,int,int,const std::basic_string<char,std::char_traits<char>,std::allocator<char> >&) \
> (msgs = &(...), cat = 0, set = 4, msgid = 4, dflt = &(...)), line 153 in "22.locale.messages.mt.cpp"
> unnamed block in thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> (dbx) quit
> {noformat}
> This is a new test for 4.2.1, so it is a regression.
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[jira] Updated: (STDCXX-845) [XLC++ 7,8,9] SEGV in
22.locale.messages.mt
Posted by "Travis Vitek (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-845?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Travis Vitek updated STDCXX-845:
--------------------------------
Description:
On AIX, when compiled with XLC++ the test 22.locale.messages.mt fails with {{SIGSEGV}} or {{SIGABRT}}.
{{SIGSEGV}} on XLC++ 7.0 for 12a, 12d
{{SIGABRT}} on XLC++ 7.0 for 15a, 15s, 15S
{{SIGSEGV}} on XLC++ 8.0 for 12a, 12d, 12D, 15a, 15A
{{SIGABRT}} on XLC++ 8.0 for 15S
{{SIGSEGV}} on XLC++ 9.0 for 12a, 15a, 15A
{{SIGABRT}} on XLC++ 9.0 for 15s
Here is the output for a 12S build...
{noformat}
$ dbx 22.locale.messages.mt
# INFO (S1) (10 lines):
# TEXT:
# COMPILER: IBM VisualAge C++, __IBMCPP__ = 900
# ENVIRONMENT: powerpc/LP64 running aix-5.3
# FILE: 22.locale.messages.mt.cpp
# COMPILED: Apr 9 2008, 16:38:10
# COMMENT: thread safety
############################################################
# CLAUSE: lib.locale.messages
# NOTE (S2) (5 lines):
# TEXT: executing "gencat rwstdmessages.cat rwstdmessages.msg"
# CLAUSE: lib.locale.messages
# FILE: process.cpp
# LINE: 279
# INFO (S1) (3 lines):
# TEXT: testing std::messages<charT> with 8 threads, 100000 iterations each
# CLAUSE: lib.locale.messages
# INFO (S1) (3 lines):
# TEXT: exercising std::messages<char>
# CLAUSE: lib.locale.messages
Segmentation fault (core dumped)
$ dbx 22.locale.messages.mt
Type 'help' for help.
[using memory image in core]
reading symbolic information ...
Segmentation fault in strchr.strchr at 0x900000000048ec0 ($t2)
0x900000000048ec0 (strchr+0x140) 8d230001 lbzu r9,0x1(r3)
(dbx) where
strchr.strchr() at 0x900000000048ec0
_C_get_std_facet(__rw::__rw_facet::_C_facet_type,__rw::__rw_facet*(*)(unsigned long,const char*)) const() at 0x100027970
__rw_get_facet_by_id__4__rwFRCQ2_3std6localeRCQ2_4__rw13__rw_facet_idPCQ2_3std7codecvtXTcTcTPc_@AF18_13() at 0x100070e54
do_get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x1000373ec
get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x100037178
22.locale.messages.mt.void test_get<char>( \
const std::messages<char>&,int,int,int,const std::basic_string<char,std::char_traits<char>,std::allocator<char> >&) \
(msgs = &(...), cat = 0, set = 4, msgid = 4, dflt = &(...)), line 153 in "22.locale.messages.mt.cpp"
unnamed block in thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
(dbx) quit
{noformat}
This is a new test for 4.2.1, so it is a regression.
was:
On AIX, when compiled with XLC++ the test 22.locale.messages.mt fails with {{SIGSEGV}} or {{SIGABRT}}.
{{SIGSEGV}} on XLC++ 7.0 for 12a, 12d
{{SIGABRT}} on XLC++ 7.0 for 15a, 15s, 15S
{{SIGSEGV}} on XLC++ 8.0 for 12a, 12d, 12D, 15a, 15A
{{SIGABRT}} on XLC++ 8.0 for 15S
{{SIGSEGV}} on XLC++ 9.0 for 12a, 15a, 15A
{{SIGABRT}} on XLC++ 9.0 for 15s
Here is the output for a 12S build...
{noformat}
$ dbx 22.locale.messages.mt
# INFO (S1) (10 lines):
# TEXT:
# COMPILER: IBM VisualAge C++, __IBMCPP__ = 900
# ENVIRONMENT: powerpc/LP64 running aix-5.3
# FILE: 22.locale.messages.mt.cpp
# COMPILED: Apr 9 2008, 16:38:10
# COMMENT: thread safety
############################################################
# CLAUSE: lib.locale.messages
# NOTE (S2) (5 lines):
# TEXT: executing "gencat rwstdmessages.cat rwstdmessages.msg"
# CLAUSE: lib.locale.messages
# FILE: process.cpp
# LINE: 279
# INFO (S1) (3 lines):
# TEXT: testing std::messages<charT> with 8 threads, 100000 iterations each
# CLAUSE: lib.locale.messages
# INFO (S1) (3 lines):
# TEXT: exercising std::messages<char>
# CLAUSE: lib.locale.messages
Segmentation fault (core dumped)
$ dbx 22.locale.messages.mt
Type 'help' for help.
[using memory image in core]
reading symbolic information ...
Segmentation fault in strchr.strchr at 0x900000000048ec0 ($t2)
0x900000000048ec0 (strchr+0x140) 8d230001 lbzu r9,0x1(r3)
(dbx) where
strchr.strchr() at 0x900000000048ec0
_C_get_std_facet(__rw::__rw_facet::_C_facet_type,__rw::__rw_facet*(*)(unsigned long,const char*)) const() at 0x100027970
__rw_get_facet_by_id__4__rwFRCQ2_3std6localeRCQ2_4__rw13__rw_facet_idPCQ2_3std7codecvtXTcTcTPc_@AF18_13() at 0x100070e54
do_get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x1000373ec
get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x100037178
22.locale.messages.mt.void test_get<char>(const std::messages<char>&,int,int,int,const std::basic_string<char,std::char_traits<char>,std::allocator<char> >&)(msgs = &(...), cat = 0, set = 4, msgid = 4, dflt = &(...)), line 153 in "22.locale.messages.mt.cpp"
unnamed block in thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
(dbx) quit
{noformat}
This is a new test for 4.2.1, so it is a regression.
Wrapped lines to reduce width of generated page.
> [XLC++ 7,8,9] SEGV in 22.locale.messages.mt
> -------------------------------------------
>
> Key: STDCXX-845
> URL: https://issues.apache.org/jira/browse/STDCXX-845
> Project: C++ Standard Library
> Issue Type: Bug
> Components: Locales
> Affects Versions: 4.2.1
> Environment: AIX 5.3 PowerPC IBM XLC++ 9.0
> AIX 5.3 PowerPC IBM XLC++ 8.0
> AIX 5.3 PowerPC IBM XLC++ 7.0
> Reporter: Travis Vitek
> Fix For: 4.2.1
>
> Original Estimate: 4h
> Time Spent: 4h
> Remaining Estimate: 4h
>
> On AIX, when compiled with XLC++ the test 22.locale.messages.mt fails with {{SIGSEGV}} or {{SIGABRT}}.
> {{SIGSEGV}} on XLC++ 7.0 for 12a, 12d
> {{SIGABRT}} on XLC++ 7.0 for 15a, 15s, 15S
> {{SIGSEGV}} on XLC++ 8.0 for 12a, 12d, 12D, 15a, 15A
> {{SIGABRT}} on XLC++ 8.0 for 15S
> {{SIGSEGV}} on XLC++ 9.0 for 12a, 15a, 15A
> {{SIGABRT}} on XLC++ 9.0 for 15s
> Here is the output for a 12S build...
> {noformat}
> $ dbx 22.locale.messages.mt
> # INFO (S1) (10 lines):
> # TEXT:
> # COMPILER: IBM VisualAge C++, __IBMCPP__ = 900
> # ENVIRONMENT: powerpc/LP64 running aix-5.3
> # FILE: 22.locale.messages.mt.cpp
> # COMPILED: Apr 9 2008, 16:38:10
> # COMMENT: thread safety
> ############################################################
> # CLAUSE: lib.locale.messages
> # NOTE (S2) (5 lines):
> # TEXT: executing "gencat rwstdmessages.cat rwstdmessages.msg"
> # CLAUSE: lib.locale.messages
> # FILE: process.cpp
> # LINE: 279
> # INFO (S1) (3 lines):
> # TEXT: testing std::messages<charT> with 8 threads, 100000 iterations each
> # CLAUSE: lib.locale.messages
> # INFO (S1) (3 lines):
> # TEXT: exercising std::messages<char>
> # CLAUSE: lib.locale.messages
> Segmentation fault (core dumped)
> $ dbx 22.locale.messages.mt
> Type 'help' for help.
> [using memory image in core]
> reading symbolic information ...
> Segmentation fault in strchr.strchr at 0x900000000048ec0 ($t2)
> 0x900000000048ec0 (strchr+0x140) 8d230001 lbzu r9,0x1(r3)
> (dbx) where
> strchr.strchr() at 0x900000000048ec0
> _C_get_std_facet(__rw::__rw_facet::_C_facet_type,__rw::__rw_facet*(*)(unsigned long,const char*)) const() at 0x100027970
> __rw_get_facet_by_id__4__rwFRCQ2_3std6localeRCQ2_4__rw13__rw_facet_idPCQ2_3std7codecvtXTcTcTPc_@AF18_13() at 0x100070e54
> do_get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x1000373ec
> get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x100037178
> 22.locale.messages.mt.void test_get<char>( \
> const std::messages<char>&,int,int,int,const std::basic_string<char,std::char_traits<char>,std::allocator<char> >&) \
> (msgs = &(...), cat = 0, set = 4, msgid = 4, dflt = &(...)), line 153 in "22.locale.messages.mt.cpp"
> unnamed block in thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> (dbx) quit
> {noformat}
> This is a new test for 4.2.1, so it is a regression.
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[jira] Commented: (STDCXX-845) [XLC++ 7,8,9] SEGV in
22.locale.messages.mt
Posted by "Travis Vitek (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12594319#action_12594319 ]
Travis Vitek commented on STDCXX-845:
-------------------------------------
Yes, it exercises the message catalog cache but it does not exercise the locale or facet caches. I was pretty sure you were asking about the locale cache when you mentioned the test only having a single locale.
We could do this optimization, but it might involve more work than you realize. Each entry in the cache would need to keep the catalog name string passed to the {{open()}} call. We would also need to be able to determine that two catalog names are referring to the same catalog. i.e. opening a catalog named "foo.cat" may actually yield a different message catalog depending on the value of {{NLSPATH}} and the current working directory at the time of the call. Same for "foo.cat" and "../foo.cat", but the result is the opposite. In the first case the wrong message catalog would be returned, and in the second case we would unnecessarily create a duplicate message catalog.
> [XLC++ 7,8,9] SEGV in 22.locale.messages.mt
> -------------------------------------------
>
> Key: STDCXX-845
> URL: https://issues.apache.org/jira/browse/STDCXX-845
> Project: C++ Standard Library
> Issue Type: Bug
> Components: 22. Localization
> Affects Versions: 4.2.1
> Environment: AIX 5.3 PowerPC IBM XLC++ 9.0
> AIX 5.3 PowerPC IBM XLC++ 8.0
> AIX 5.3 PowerPC IBM XLC++ 7.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Fix For: 4.2.2
>
> Attachments: stdcxx-845.patch
>
> Original Estimate: 4h
> Time Spent: 9h
> Remaining Estimate: 0h
>
> On AIX, when compiled with XLC++ the test 22.locale.messages.mt fails with {{SIGSEGV}} or {{SIGABRT}}.
> {{SIGSEGV}} on XLC++ 7.0 for 12a, 12d
> {{SIGABRT}} on XLC++ 7.0 for 15a, 15s, 15S
> {{SIGSEGV}} on XLC++ 8.0 for 12a, 12d, 12D, 15a, 15A
> {{SIGABRT}} on XLC++ 8.0 for 15S
> {{SIGSEGV}} on XLC++ 9.0 for 12a, 15a, 15A
> {{SIGABRT}} on XLC++ 9.0 for 15s
> Here is the output for a 12S build...
> {noformat}
> $ dbx 22.locale.messages.mt
> # INFO (S1) (10 lines):
> # TEXT:
> # COMPILER: IBM VisualAge C++, __IBMCPP__ = 900
> # ENVIRONMENT: powerpc/LP64 running aix-5.3
> # FILE: 22.locale.messages.mt.cpp
> # COMPILED: Apr 9 2008, 16:38:10
> # COMMENT: thread safety
> ############################################################
> # CLAUSE: lib.locale.messages
> # NOTE (S2) (5 lines):
> # TEXT: executing "gencat rwstdmessages.cat rwstdmessages.msg"
> # CLAUSE: lib.locale.messages
> # FILE: process.cpp
> # LINE: 279
> # INFO (S1) (3 lines):
> # TEXT: testing std::messages<charT> with 8 threads, 100000 iterations each
> # CLAUSE: lib.locale.messages
> # INFO (S1) (3 lines):
> # TEXT: exercising std::messages<char>
> # CLAUSE: lib.locale.messages
> Segmentation fault (core dumped)
> $ dbx 22.locale.messages.mt
> Type 'help' for help.
> [using memory image in core]
> reading symbolic information ...
> Segmentation fault in strchr.strchr at 0x900000000048ec0 ($t2)
> 0x900000000048ec0 (strchr+0x140) 8d230001 lbzu r9,0x1(r3)
> (dbx) where
> strchr.strchr() at 0x900000000048ec0
> _C_get_std_facet(__rw::__rw_facet::_C_facet_type,__rw::__rw_facet*(*)(unsigned long,const char*)) const() at 0x100027970
> __rw_get_facet_by_id__4__rwFRCQ2_3std6localeRCQ2_4__rw13__rw_facet_idPCQ2_3std7codecvtXTcTcTPc_@AF18_13() at 0x100070e54
> do_get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x1000373ec
> get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x100037178
> 22.locale.messages.mt.void test_get<char>( \
> const std::messages<char>&,int,int,int,const std::basic_string<char,std::char_traits<char>,std::allocator<char> >&) \
> (msgs = &(...), cat = 0, set = 4, msgid = 4, dflt = &(...)), line 153 in "22.locale.messages.mt.cpp"
> unnamed block in thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> (dbx) quit
> {noformat}
> This is a new test for 4.2.1, so it is a regression.
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[jira] Issue Comment Edited: (STDCXX-845) [XLC++ 7,8,9] SEGV in
22.locale.messages.mt
Posted by "Martin Sebor (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12594336#action_12594336 ]
sebor edited comment on STDCXX-845 at 5/5/08 2:02 PM:
-------------------------------------------------------------
I was actually thinking of the catalog cache forgetting it was unrelated to the locale cache. But it seems that both should be exercised. I.e., the test should create multiple named locales just like all the others do, and it should open enough distinct catalogs to exercise the 8 slot catalog cache even in the presence of optimizations involving pathnames.
Good point about the pathnames! To avoid any overhead at all, we would need to traverse {{NLSPATH}}, [{{stat()}}|http://www.opengroup.org/onlinepubs/009695399/functions/stat.html] the file, and compare inode numbers. Of course, since this is just an optimization so we wouldn't need to go all the way. As Brad suggests, we could just cover an easy subset of the possible cases (e.g., using {{strcmp()}}). If you think this would be a worthwhile enhancement (remember that most exceptions make use of the facet) let's create a new issue for it and treat it separately from this one.
was (Author: sebor):
I was actually thinking of the catalog cache forgetting it was unrelated to the locale cache. But it seems that both should be exercised. I.e., the test should create multiple named locales just like all the others do, and it should open enough distinct catalogs to exercise the 8 slot catalog cache even in the presence of optimizations involving pathnames.
Good point about the pathnames! To avoid any overhead at all, we would need to traverse {{NLSPATH}}, [{{stat()}}|http://www.opengroup.org/onlinepubs/009695399/functions/stat.html] the file, and compare inode numbers. Of course, since this is just an optimization so we wouldn't need to go all the way. We could just cover an easy subset of the possible cases (using {{strcmp()}}). If you think this would be a worthwhile enhancement (remember that most exceptions make use of the facet) let's create a new issue for it and treat it separately from this one.
> [XLC++ 7,8,9] SEGV in 22.locale.messages.mt
> -------------------------------------------
>
> Key: STDCXX-845
> URL: https://issues.apache.org/jira/browse/STDCXX-845
> Project: C++ Standard Library
> Issue Type: Bug
> Components: 22. Localization
> Affects Versions: 4.2.1
> Environment: AIX 5.3 PowerPC IBM XLC++ 9.0
> AIX 5.3 PowerPC IBM XLC++ 8.0
> AIX 5.3 PowerPC IBM XLC++ 7.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Fix For: 4.2.2
>
> Attachments: stdcxx-845.patch
>
> Original Estimate: 4h
> Time Spent: 9h
> Remaining Estimate: 0h
>
> On AIX, when compiled with XLC++ the test 22.locale.messages.mt fails with {{SIGSEGV}} or {{SIGABRT}}.
> {{SIGSEGV}} on XLC++ 7.0 for 12a, 12d
> {{SIGABRT}} on XLC++ 7.0 for 15a, 15s, 15S
> {{SIGSEGV}} on XLC++ 8.0 for 12a, 12d, 12D, 15a, 15A
> {{SIGABRT}} on XLC++ 8.0 for 15S
> {{SIGSEGV}} on XLC++ 9.0 for 12a, 15a, 15A
> {{SIGABRT}} on XLC++ 9.0 for 15s
> Here is the output for a 12S build...
> {noformat}
> $ dbx 22.locale.messages.mt
> # INFO (S1) (10 lines):
> # TEXT:
> # COMPILER: IBM VisualAge C++, __IBMCPP__ = 900
> # ENVIRONMENT: powerpc/LP64 running aix-5.3
> # FILE: 22.locale.messages.mt.cpp
> # COMPILED: Apr 9 2008, 16:38:10
> # COMMENT: thread safety
> ############################################################
> # CLAUSE: lib.locale.messages
> # NOTE (S2) (5 lines):
> # TEXT: executing "gencat rwstdmessages.cat rwstdmessages.msg"
> # CLAUSE: lib.locale.messages
> # FILE: process.cpp
> # LINE: 279
> # INFO (S1) (3 lines):
> # TEXT: testing std::messages<charT> with 8 threads, 100000 iterations each
> # CLAUSE: lib.locale.messages
> # INFO (S1) (3 lines):
> # TEXT: exercising std::messages<char>
> # CLAUSE: lib.locale.messages
> Segmentation fault (core dumped)
> $ dbx 22.locale.messages.mt
> Type 'help' for help.
> [using memory image in core]
> reading symbolic information ...
> Segmentation fault in strchr.strchr at 0x900000000048ec0 ($t2)
> 0x900000000048ec0 (strchr+0x140) 8d230001 lbzu r9,0x1(r3)
> (dbx) where
> strchr.strchr() at 0x900000000048ec0
> _C_get_std_facet(__rw::__rw_facet::_C_facet_type,__rw::__rw_facet*(*)(unsigned long,const char*)) const() at 0x100027970
> __rw_get_facet_by_id__4__rwFRCQ2_3std6localeRCQ2_4__rw13__rw_facet_idPCQ2_3std7codecvtXTcTcTPc_@AF18_13() at 0x100070e54
> do_get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x1000373ec
> get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x100037178
> 22.locale.messages.mt.void test_get<char>( \
> const std::messages<char>&,int,int,int,const std::basic_string<char,std::char_traits<char>,std::allocator<char> >&) \
> (msgs = &(...), cat = 0, set = 4, msgid = 4, dflt = &(...)), line 153 in "22.locale.messages.mt.cpp"
> unnamed block in thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> (dbx) quit
> {noformat}
> This is a new test for 4.2.1, so it is a regression.
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[jira] Updated: (STDCXX-845) [XLC++ 7,8,9] SEGV in
22.locale.messages.mt
Posted by "Travis Vitek (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-845?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Travis Vitek updated STDCXX-845:
--------------------------------
Comment: was deleted
> [XLC++ 7,8,9] SEGV in 22.locale.messages.mt
> -------------------------------------------
>
> Key: STDCXX-845
> URL: https://issues.apache.org/jira/browse/STDCXX-845
> Project: C++ Standard Library
> Issue Type: Bug
> Components: 22. Localization
> Affects Versions: 4.2.1
> Environment: AIX 5.3 PowerPC IBM XLC++ 9.0
> AIX 5.3 PowerPC IBM XLC++ 8.0
> AIX 5.3 PowerPC IBM XLC++ 7.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Fix For: 4.2.2
>
> Attachments: stdcxx-845.patch
>
> Original Estimate: 4h
> Time Spent: 9h
> Remaining Estimate: 0h
>
> On AIX, when compiled with XLC++ the test 22.locale.messages.mt fails with {{SIGSEGV}} or {{SIGABRT}}.
> {{SIGSEGV}} on XLC++ 7.0 for 12a, 12d
> {{SIGABRT}} on XLC++ 7.0 for 15a, 15s, 15S
> {{SIGSEGV}} on XLC++ 8.0 for 12a, 12d, 12D, 15a, 15A
> {{SIGABRT}} on XLC++ 8.0 for 15S
> {{SIGSEGV}} on XLC++ 9.0 for 12a, 15a, 15A
> {{SIGABRT}} on XLC++ 9.0 for 15s
> Here is the output for a 12S build...
> {noformat}
> $ dbx 22.locale.messages.mt
> # INFO (S1) (10 lines):
> # TEXT:
> # COMPILER: IBM VisualAge C++, __IBMCPP__ = 900
> # ENVIRONMENT: powerpc/LP64 running aix-5.3
> # FILE: 22.locale.messages.mt.cpp
> # COMPILED: Apr 9 2008, 16:38:10
> # COMMENT: thread safety
> ############################################################
> # CLAUSE: lib.locale.messages
> # NOTE (S2) (5 lines):
> # TEXT: executing "gencat rwstdmessages.cat rwstdmessages.msg"
> # CLAUSE: lib.locale.messages
> # FILE: process.cpp
> # LINE: 279
> # INFO (S1) (3 lines):
> # TEXT: testing std::messages<charT> with 8 threads, 100000 iterations each
> # CLAUSE: lib.locale.messages
> # INFO (S1) (3 lines):
> # TEXT: exercising std::messages<char>
> # CLAUSE: lib.locale.messages
> Segmentation fault (core dumped)
> $ dbx 22.locale.messages.mt
> Type 'help' for help.
> [using memory image in core]
> reading symbolic information ...
> Segmentation fault in strchr.strchr at 0x900000000048ec0 ($t2)
> 0x900000000048ec0 (strchr+0x140) 8d230001 lbzu r9,0x1(r3)
> (dbx) where
> strchr.strchr() at 0x900000000048ec0
> _C_get_std_facet(__rw::__rw_facet::_C_facet_type,__rw::__rw_facet*(*)(unsigned long,const char*)) const() at 0x100027970
> __rw_get_facet_by_id__4__rwFRCQ2_3std6localeRCQ2_4__rw13__rw_facet_idPCQ2_3std7codecvtXTcTcTPc_@AF18_13() at 0x100070e54
> do_get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x1000373ec
> get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x100037178
> 22.locale.messages.mt.void test_get<char>( \
> const std::messages<char>&,int,int,int,const std::basic_string<char,std::char_traits<char>,std::allocator<char> >&) \
> (msgs = &(...), cat = 0, set = 4, msgid = 4, dflt = &(...)), line 153 in "22.locale.messages.mt.cpp"
> unnamed block in thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> (dbx) quit
> {noformat}
> This is a new test for 4.2.1, so it is a regression.
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[jira] Updated: (STDCXX-845) [XLC++ 7,8,9] SEGV in
22.locale.messages.mt
Posted by "Travis Vitek (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-845?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Travis Vitek updated STDCXX-845:
--------------------------------
Attachment: stdcxx-845.patch
> [XLC++ 7,8,9] SEGV in 22.locale.messages.mt
> -------------------------------------------
>
> Key: STDCXX-845
> URL: https://issues.apache.org/jira/browse/STDCXX-845
> Project: C++ Standard Library
> Issue Type: Bug
> Components: 22. Localization
> Affects Versions: 4.2.1
> Environment: AIX 5.3 PowerPC IBM XLC++ 9.0
> AIX 5.3 PowerPC IBM XLC++ 8.0
> AIX 5.3 PowerPC IBM XLC++ 7.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Fix For: 4.2.2
>
> Attachments: stdcxx-845.patch
>
> Original Estimate: 4h
> Time Spent: 6h
> Remaining Estimate: 2h
>
> On AIX, when compiled with XLC++ the test 22.locale.messages.mt fails with {{SIGSEGV}} or {{SIGABRT}}.
> {{SIGSEGV}} on XLC++ 7.0 for 12a, 12d
> {{SIGABRT}} on XLC++ 7.0 for 15a, 15s, 15S
> {{SIGSEGV}} on XLC++ 8.0 for 12a, 12d, 12D, 15a, 15A
> {{SIGABRT}} on XLC++ 8.0 for 15S
> {{SIGSEGV}} on XLC++ 9.0 for 12a, 15a, 15A
> {{SIGABRT}} on XLC++ 9.0 for 15s
> Here is the output for a 12S build...
> {noformat}
> $ dbx 22.locale.messages.mt
> # INFO (S1) (10 lines):
> # TEXT:
> # COMPILER: IBM VisualAge C++, __IBMCPP__ = 900
> # ENVIRONMENT: powerpc/LP64 running aix-5.3
> # FILE: 22.locale.messages.mt.cpp
> # COMPILED: Apr 9 2008, 16:38:10
> # COMMENT: thread safety
> ############################################################
> # CLAUSE: lib.locale.messages
> # NOTE (S2) (5 lines):
> # TEXT: executing "gencat rwstdmessages.cat rwstdmessages.msg"
> # CLAUSE: lib.locale.messages
> # FILE: process.cpp
> # LINE: 279
> # INFO (S1) (3 lines):
> # TEXT: testing std::messages<charT> with 8 threads, 100000 iterations each
> # CLAUSE: lib.locale.messages
> # INFO (S1) (3 lines):
> # TEXT: exercising std::messages<char>
> # CLAUSE: lib.locale.messages
> Segmentation fault (core dumped)
> $ dbx 22.locale.messages.mt
> Type 'help' for help.
> [using memory image in core]
> reading symbolic information ...
> Segmentation fault in strchr.strchr at 0x900000000048ec0 ($t2)
> 0x900000000048ec0 (strchr+0x140) 8d230001 lbzu r9,0x1(r3)
> (dbx) where
> strchr.strchr() at 0x900000000048ec0
> _C_get_std_facet(__rw::__rw_facet::_C_facet_type,__rw::__rw_facet*(*)(unsigned long,const char*)) const() at 0x100027970
> __rw_get_facet_by_id__4__rwFRCQ2_3std6localeRCQ2_4__rw13__rw_facet_idPCQ2_3std7codecvtXTcTcTPc_@AF18_13() at 0x100070e54
> do_get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x1000373ec
> get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x100037178
> 22.locale.messages.mt.void test_get<char>( \
> const std::messages<char>&,int,int,int,const std::basic_string<char,std::char_traits<char>,std::allocator<char> >&) \
> (msgs = &(...), cat = 0, set = 4, msgid = 4, dflt = &(...)), line 153 in "22.locale.messages.mt.cpp"
> unnamed block in thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> (dbx) quit
> {noformat}
> This is a new test for 4.2.1, so it is a regression.
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[jira] Commented: (STDCXX-845) [XLC++ 7,8,9] SEGV in
22.locale.messages.mt
Posted by "Martin Sebor (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12598513#action_12598513 ]
Martin Sebor commented on STDCXX-845:
-------------------------------------
Looks like the {{SIGABRT}}/{{SIGSEGV}} has gone away and the test passes in ordinary (no-reentrant builds). But in thread-safe builds it now gets killed with {{SIGHUP}}.
> [XLC++ 7,8,9] SEGV in 22.locale.messages.mt
> -------------------------------------------
>
> Key: STDCXX-845
> URL: https://issues.apache.org/jira/browse/STDCXX-845
> Project: C++ Standard Library
> Issue Type: Bug
> Components: 22. Localization
> Affects Versions: 4.2.1
> Environment: AIX 5.3 PowerPC IBM XLC++ 9.0
> AIX 5.3 PowerPC IBM XLC++ 8.0
> AIX 5.3 PowerPC IBM XLC++ 7.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Fix For: 4.2.2
>
> Attachments: stdcxx-845.patch
>
> Original Estimate: 4h
> Time Spent: 9h
> Remaining Estimate: 0h
>
> On AIX, when compiled with XLC++ the test 22.locale.messages.mt fails with {{SIGSEGV}} or {{SIGABRT}}.
> {{SIGSEGV}} on XLC++ 7.0 for 12a, 12d
> {{SIGABRT}} on XLC++ 7.0 for 15a, 15s, 15S
> {{SIGSEGV}} on XLC++ 8.0 for 12a, 12d, 12D, 15a, 15A
> {{SIGABRT}} on XLC++ 8.0 for 15S
> {{SIGSEGV}} on XLC++ 9.0 for 12a, 15a, 15A
> {{SIGABRT}} on XLC++ 9.0 for 15s
> Here is the output for a 12S build...
> {noformat}
> $ dbx 22.locale.messages.mt
> # INFO (S1) (10 lines):
> # TEXT:
> # COMPILER: IBM VisualAge C++, __IBMCPP__ = 900
> # ENVIRONMENT: powerpc/LP64 running aix-5.3
> # FILE: 22.locale.messages.mt.cpp
> # COMPILED: Apr 9 2008, 16:38:10
> # COMMENT: thread safety
> ############################################################
> # CLAUSE: lib.locale.messages
> # NOTE (S2) (5 lines):
> # TEXT: executing "gencat rwstdmessages.cat rwstdmessages.msg"
> # CLAUSE: lib.locale.messages
> # FILE: process.cpp
> # LINE: 279
> # INFO (S1) (3 lines):
> # TEXT: testing std::messages<charT> with 8 threads, 100000 iterations each
> # CLAUSE: lib.locale.messages
> # INFO (S1) (3 lines):
> # TEXT: exercising std::messages<char>
> # CLAUSE: lib.locale.messages
> Segmentation fault (core dumped)
> $ dbx 22.locale.messages.mt
> Type 'help' for help.
> [using memory image in core]
> reading symbolic information ...
> Segmentation fault in strchr.strchr at 0x900000000048ec0 ($t2)
> 0x900000000048ec0 (strchr+0x140) 8d230001 lbzu r9,0x1(r3)
> (dbx) where
> strchr.strchr() at 0x900000000048ec0
> _C_get_std_facet(__rw::__rw_facet::_C_facet_type,__rw::__rw_facet*(*)(unsigned long,const char*)) const() at 0x100027970
> __rw_get_facet_by_id__4__rwFRCQ2_3std6localeRCQ2_4__rw13__rw_facet_idPCQ2_3std7codecvtXTcTcTPc_@AF18_13() at 0x100070e54
> do_get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x1000373ec
> get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x100037178
> 22.locale.messages.mt.void test_get<char>( \
> const std::messages<char>&,int,int,int,const std::basic_string<char,std::char_traits<char>,std::allocator<char> >&) \
> (msgs = &(...), cat = 0, set = 4, msgid = 4, dflt = &(...)), line 153 in "22.locale.messages.mt.cpp"
> unnamed block in thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> (dbx) quit
> {noformat}
> This is a new test for 4.2.1, so it is a regression.
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[jira] Commented: (STDCXX-845) [XLC++ 7,8,9] SEGV in
22.locale.messages.mt
Posted by "Martin Sebor (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12594336#action_12594336 ]
Martin Sebor commented on STDCXX-845:
-------------------------------------
I was actually thinking of the catalog cache forgetting it was unrelated to the locale cache. But it seems that both should be exercised. I.e., the test should create multiple named locales just like all the others do, and it should open enough distinct catalogs to exercise the 8 slot catalog cache even in the presence of optimizations involving pathnames.
Good point about the pathnames! To avoid any overhead at all, we would need to traverse {{NLSPATH}}, [{{stat()}}|http://www.opengroup.org/onlinepubs/009695399/functions/stat.html] the file, and compare inode numbers. Of course, since this is just an optimization so we wouldn't need to go all the way. We could just cover an easy subset of the possible cases (using {{strcmp()}}). If you think this would be a worthwhile enhancement (remember that most exceptions make use of the facet) let's create a new issue for it and treat it separately from this one.
> [XLC++ 7,8,9] SEGV in 22.locale.messages.mt
> -------------------------------------------
>
> Key: STDCXX-845
> URL: https://issues.apache.org/jira/browse/STDCXX-845
> Project: C++ Standard Library
> Issue Type: Bug
> Components: 22. Localization
> Affects Versions: 4.2.1
> Environment: AIX 5.3 PowerPC IBM XLC++ 9.0
> AIX 5.3 PowerPC IBM XLC++ 8.0
> AIX 5.3 PowerPC IBM XLC++ 7.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Fix For: 4.2.2
>
> Attachments: stdcxx-845.patch
>
> Original Estimate: 4h
> Time Spent: 9h
> Remaining Estimate: 0h
>
> On AIX, when compiled with XLC++ the test 22.locale.messages.mt fails with {{SIGSEGV}} or {{SIGABRT}}.
> {{SIGSEGV}} on XLC++ 7.0 for 12a, 12d
> {{SIGABRT}} on XLC++ 7.0 for 15a, 15s, 15S
> {{SIGSEGV}} on XLC++ 8.0 for 12a, 12d, 12D, 15a, 15A
> {{SIGABRT}} on XLC++ 8.0 for 15S
> {{SIGSEGV}} on XLC++ 9.0 for 12a, 15a, 15A
> {{SIGABRT}} on XLC++ 9.0 for 15s
> Here is the output for a 12S build...
> {noformat}
> $ dbx 22.locale.messages.mt
> # INFO (S1) (10 lines):
> # TEXT:
> # COMPILER: IBM VisualAge C++, __IBMCPP__ = 900
> # ENVIRONMENT: powerpc/LP64 running aix-5.3
> # FILE: 22.locale.messages.mt.cpp
> # COMPILED: Apr 9 2008, 16:38:10
> # COMMENT: thread safety
> ############################################################
> # CLAUSE: lib.locale.messages
> # NOTE (S2) (5 lines):
> # TEXT: executing "gencat rwstdmessages.cat rwstdmessages.msg"
> # CLAUSE: lib.locale.messages
> # FILE: process.cpp
> # LINE: 279
> # INFO (S1) (3 lines):
> # TEXT: testing std::messages<charT> with 8 threads, 100000 iterations each
> # CLAUSE: lib.locale.messages
> # INFO (S1) (3 lines):
> # TEXT: exercising std::messages<char>
> # CLAUSE: lib.locale.messages
> Segmentation fault (core dumped)
> $ dbx 22.locale.messages.mt
> Type 'help' for help.
> [using memory image in core]
> reading symbolic information ...
> Segmentation fault in strchr.strchr at 0x900000000048ec0 ($t2)
> 0x900000000048ec0 (strchr+0x140) 8d230001 lbzu r9,0x1(r3)
> (dbx) where
> strchr.strchr() at 0x900000000048ec0
> _C_get_std_facet(__rw::__rw_facet::_C_facet_type,__rw::__rw_facet*(*)(unsigned long,const char*)) const() at 0x100027970
> __rw_get_facet_by_id__4__rwFRCQ2_3std6localeRCQ2_4__rw13__rw_facet_idPCQ2_3std7codecvtXTcTcTPc_@AF18_13() at 0x100070e54
> do_get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x1000373ec
> get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x100037178
> 22.locale.messages.mt.void test_get<char>( \
> const std::messages<char>&,int,int,int,const std::basic_string<char,std::char_traits<char>,std::allocator<char> >&) \
> (msgs = &(...), cat = 0, set = 4, msgid = 4, dflt = &(...)), line 153 in "22.locale.messages.mt.cpp"
> unnamed block in thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> (dbx) quit
> {noformat}
> This is a new test for 4.2.1, so it is a regression.
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[jira] Commented: (STDCXX-845) [XLC++ 7,8,9] SEGV in
22.locale.messages.mt
Posted by "Martin Sebor (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12594269#action_12594269 ]
Martin Sebor commented on STDCXX-845:
-------------------------------------
Definitely. But if {{22.locale.messages.mt.cpp}} doesn't exercise the cache why is it failing?
> [XLC++ 7,8,9] SEGV in 22.locale.messages.mt
> -------------------------------------------
>
> Key: STDCXX-845
> URL: https://issues.apache.org/jira/browse/STDCXX-845
> Project: C++ Standard Library
> Issue Type: Bug
> Components: 22. Localization
> Affects Versions: 4.2.1
> Environment: AIX 5.3 PowerPC IBM XLC++ 9.0
> AIX 5.3 PowerPC IBM XLC++ 8.0
> AIX 5.3 PowerPC IBM XLC++ 7.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Fix For: 4.2.2
>
> Attachments: stdcxx-845.patch
>
> Original Estimate: 4h
> Time Spent: 9h
> Remaining Estimate: 0h
>
> On AIX, when compiled with XLC++ the test 22.locale.messages.mt fails with {{SIGSEGV}} or {{SIGABRT}}.
> {{SIGSEGV}} on XLC++ 7.0 for 12a, 12d
> {{SIGABRT}} on XLC++ 7.0 for 15a, 15s, 15S
> {{SIGSEGV}} on XLC++ 8.0 for 12a, 12d, 12D, 15a, 15A
> {{SIGABRT}} on XLC++ 8.0 for 15S
> {{SIGSEGV}} on XLC++ 9.0 for 12a, 15a, 15A
> {{SIGABRT}} on XLC++ 9.0 for 15s
> Here is the output for a 12S build...
> {noformat}
> $ dbx 22.locale.messages.mt
> # INFO (S1) (10 lines):
> # TEXT:
> # COMPILER: IBM VisualAge C++, __IBMCPP__ = 900
> # ENVIRONMENT: powerpc/LP64 running aix-5.3
> # FILE: 22.locale.messages.mt.cpp
> # COMPILED: Apr 9 2008, 16:38:10
> # COMMENT: thread safety
> ############################################################
> # CLAUSE: lib.locale.messages
> # NOTE (S2) (5 lines):
> # TEXT: executing "gencat rwstdmessages.cat rwstdmessages.msg"
> # CLAUSE: lib.locale.messages
> # FILE: process.cpp
> # LINE: 279
> # INFO (S1) (3 lines):
> # TEXT: testing std::messages<charT> with 8 threads, 100000 iterations each
> # CLAUSE: lib.locale.messages
> # INFO (S1) (3 lines):
> # TEXT: exercising std::messages<char>
> # CLAUSE: lib.locale.messages
> Segmentation fault (core dumped)
> $ dbx 22.locale.messages.mt
> Type 'help' for help.
> [using memory image in core]
> reading symbolic information ...
> Segmentation fault in strchr.strchr at 0x900000000048ec0 ($t2)
> 0x900000000048ec0 (strchr+0x140) 8d230001 lbzu r9,0x1(r3)
> (dbx) where
> strchr.strchr() at 0x900000000048ec0
> _C_get_std_facet(__rw::__rw_facet::_C_facet_type,__rw::__rw_facet*(*)(unsigned long,const char*)) const() at 0x100027970
> __rw_get_facet_by_id__4__rwFRCQ2_3std6localeRCQ2_4__rw13__rw_facet_idPCQ2_3std7codecvtXTcTcTPc_@AF18_13() at 0x100070e54
> do_get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x1000373ec
> get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x100037178
> 22.locale.messages.mt.void test_get<char>( \
> const std::messages<char>&,int,int,int,const std::basic_string<char,std::char_traits<char>,std::allocator<char> >&) \
> (msgs = &(...), cat = 0, set = 4, msgid = 4, dflt = &(...)), line 153 in "22.locale.messages.mt.cpp"
> unnamed block in thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> (dbx) quit
> {noformat}
> This is a new test for 4.2.1, so it is a regression.
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[jira] Updated: (STDCXX-845) [XLC++ 7,8,9] SEGV in
22.locale.messages.mt
Posted by "Travis Vitek (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-845?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Travis Vitek updated STDCXX-845:
--------------------------------
Attachment: stdcxx-845.patch
Here is my proposed patch. Please review and provide feedback.
{noformat}
2008-05-02 Travis Vitek <vi...@roguewave.com>
STDCXX-845
* src/messages.cpp (__rw_manage_cat_data): Employ a simple paging
scheme and one level of indirection to avoid moving catalog data
around when adding or removing message catalogs from the cache.
Ensure that we do cleanup when closing last catalog regardless of
the order that catalogs are closed.
{noformat}
> [XLC++ 7,8,9] SEGV in 22.locale.messages.mt
> -------------------------------------------
>
> Key: STDCXX-845
> URL: https://issues.apache.org/jira/browse/STDCXX-845
> Project: C++ Standard Library
> Issue Type: Bug
> Components: 22. Localization
> Affects Versions: 4.2.1
> Environment: AIX 5.3 PowerPC IBM XLC++ 9.0
> AIX 5.3 PowerPC IBM XLC++ 8.0
> AIX 5.3 PowerPC IBM XLC++ 7.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Fix For: 4.2.2
>
> Attachments: stdcxx-845.patch
>
> Original Estimate: 4h
> Time Spent: 6h
> Remaining Estimate: 2h
>
> On AIX, when compiled with XLC++ the test 22.locale.messages.mt fails with {{SIGSEGV}} or {{SIGABRT}}.
> {{SIGSEGV}} on XLC++ 7.0 for 12a, 12d
> {{SIGABRT}} on XLC++ 7.0 for 15a, 15s, 15S
> {{SIGSEGV}} on XLC++ 8.0 for 12a, 12d, 12D, 15a, 15A
> {{SIGABRT}} on XLC++ 8.0 for 15S
> {{SIGSEGV}} on XLC++ 9.0 for 12a, 15a, 15A
> {{SIGABRT}} on XLC++ 9.0 for 15s
> Here is the output for a 12S build...
> {noformat}
> $ dbx 22.locale.messages.mt
> # INFO (S1) (10 lines):
> # TEXT:
> # COMPILER: IBM VisualAge C++, __IBMCPP__ = 900
> # ENVIRONMENT: powerpc/LP64 running aix-5.3
> # FILE: 22.locale.messages.mt.cpp
> # COMPILED: Apr 9 2008, 16:38:10
> # COMMENT: thread safety
> ############################################################
> # CLAUSE: lib.locale.messages
> # NOTE (S2) (5 lines):
> # TEXT: executing "gencat rwstdmessages.cat rwstdmessages.msg"
> # CLAUSE: lib.locale.messages
> # FILE: process.cpp
> # LINE: 279
> # INFO (S1) (3 lines):
> # TEXT: testing std::messages<charT> with 8 threads, 100000 iterations each
> # CLAUSE: lib.locale.messages
> # INFO (S1) (3 lines):
> # TEXT: exercising std::messages<char>
> # CLAUSE: lib.locale.messages
> Segmentation fault (core dumped)
> $ dbx 22.locale.messages.mt
> Type 'help' for help.
> [using memory image in core]
> reading symbolic information ...
> Segmentation fault in strchr.strchr at 0x900000000048ec0 ($t2)
> 0x900000000048ec0 (strchr+0x140) 8d230001 lbzu r9,0x1(r3)
> (dbx) where
> strchr.strchr() at 0x900000000048ec0
> _C_get_std_facet(__rw::__rw_facet::_C_facet_type,__rw::__rw_facet*(*)(unsigned long,const char*)) const() at 0x100027970
> __rw_get_facet_by_id__4__rwFRCQ2_3std6localeRCQ2_4__rw13__rw_facet_idPCQ2_3std7codecvtXTcTcTPc_@AF18_13() at 0x100070e54
> do_get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x1000373ec
> get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x100037178
> 22.locale.messages.mt.void test_get<char>( \
> const std::messages<char>&,int,int,int,const std::basic_string<char,std::char_traits<char>,std::allocator<char> >&) \
> (msgs = &(...), cat = 0, set = 4, msgid = 4, dflt = &(...)), line 153 in "22.locale.messages.mt.cpp"
> unnamed block in thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> (dbx) quit
> {noformat}
> This is a new test for 4.2.1, so it is a regression.
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[jira] Updated: (STDCXX-845) [XLC++ 7,8,9] SEGV in
22.locale.messages.mt
Posted by "Travis Vitek (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-845?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Travis Vitek updated STDCXX-845:
--------------------------------
Regression: (was: [Regression])
Remaining Estimate: 4h (was: 0h)
This is not a regression.
> [XLC++ 7,8,9] SEGV in 22.locale.messages.mt
> -------------------------------------------
>
> Key: STDCXX-845
> URL: https://issues.apache.org/jira/browse/STDCXX-845
> Project: C++ Standard Library
> Issue Type: Bug
> Components: Locales
> Affects Versions: 4.2.1
> Environment: AIX 5.3 PowerPC IBM XLC++ 9.0
> AIX 5.3 PowerPC IBM XLC++ 8.0
> AIX 5.3 PowerPC IBM XLC++ 7.0
> Reporter: Travis Vitek
> Fix For: 4.2.1
>
> Original Estimate: 4h
> Time Spent: 4h
> Remaining Estimate: 4h
>
> On AIX, when compiled with XLC++ the test 22.locale.messages.mt fails with {{SIGSEGV}} or {{SIGABRT}}.
> {{SIGSEGV}} on XLC++ 7.0 for 12a, 12d
> {{SIGABRT}} on XLC++ 7.0 for 15a, 15s, 15S
> {{SIGSEGV}} on XLC++ 8.0 for 12a, 12d, 12D, 15a, 15A
> {{SIGABRT}} on XLC++ 8.0 for 15S
> {{SIGSEGV}} on XLC++ 9.0 for 12a, 15a, 15A
> {{SIGABRT}} on XLC++ 9.0 for 15s
> Here is the output for a 12S build...
> {noformat}
> $ dbx 22.locale.messages.mt
> # INFO (S1) (10 lines):
> # TEXT:
> # COMPILER: IBM VisualAge C++, __IBMCPP__ = 900
> # ENVIRONMENT: powerpc/LP64 running aix-5.3
> # FILE: 22.locale.messages.mt.cpp
> # COMPILED: Apr 9 2008, 16:38:10
> # COMMENT: thread safety
> ############################################################
> # CLAUSE: lib.locale.messages
> # NOTE (S2) (5 lines):
> # TEXT: executing "gencat rwstdmessages.cat rwstdmessages.msg"
> # CLAUSE: lib.locale.messages
> # FILE: process.cpp
> # LINE: 279
> # INFO (S1) (3 lines):
> # TEXT: testing std::messages<charT> with 8 threads, 100000 iterations each
> # CLAUSE: lib.locale.messages
> # INFO (S1) (3 lines):
> # TEXT: exercising std::messages<char>
> # CLAUSE: lib.locale.messages
> Segmentation fault (core dumped)
> $ dbx 22.locale.messages.mt
> Type 'help' for help.
> [using memory image in core]
> reading symbolic information ...
> Segmentation fault in strchr.strchr at 0x900000000048ec0 ($t2)
> 0x900000000048ec0 (strchr+0x140) 8d230001 lbzu r9,0x1(r3)
> (dbx) where
> strchr.strchr() at 0x900000000048ec0
> _C_get_std_facet(__rw::__rw_facet::_C_facet_type,__rw::__rw_facet*(*)(unsigned long,const char*)) const() at 0x100027970
> __rw_get_facet_by_id__4__rwFRCQ2_3std6localeRCQ2_4__rw13__rw_facet_idPCQ2_3std7codecvtXTcTcTPc_@AF18_13() at 0x100070e54
> do_get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x1000373ec
> get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x100037178
> 22.locale.messages.mt.void test_get<char>(const std::messages<char>&,int,int,int,const std::basic_string<char,std::char_traits<char>,std::allocator<char> >&)(msgs = &(...), cat = 0, set = 4, msgid = 4, dflt = &(...)), line 153 in "22.locale.messages.mt.cpp"
> unnamed block in thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> (dbx) quit
> {noformat}
> This is a new test for 4.2.1, so it is a regression.
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[jira] Commented: (STDCXX-845) [XLC++ 7,8,9] SEGV in
22.locale.messages.mt
Posted by "Eric Lemings (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12594321#action_12594321 ]
Eric Lemings commented on STDCXX-845:
-------------------------------------
If I may throw in two cents, would it be possible to allow only absolute pathnames and exclude relative pathnames and filenames with no directory?
> [XLC++ 7,8,9] SEGV in 22.locale.messages.mt
> -------------------------------------------
>
> Key: STDCXX-845
> URL: https://issues.apache.org/jira/browse/STDCXX-845
> Project: C++ Standard Library
> Issue Type: Bug
> Components: 22. Localization
> Affects Versions: 4.2.1
> Environment: AIX 5.3 PowerPC IBM XLC++ 9.0
> AIX 5.3 PowerPC IBM XLC++ 8.0
> AIX 5.3 PowerPC IBM XLC++ 7.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Fix For: 4.2.2
>
> Attachments: stdcxx-845.patch
>
> Original Estimate: 4h
> Time Spent: 9h
> Remaining Estimate: 0h
>
> On AIX, when compiled with XLC++ the test 22.locale.messages.mt fails with {{SIGSEGV}} or {{SIGABRT}}.
> {{SIGSEGV}} on XLC++ 7.0 for 12a, 12d
> {{SIGABRT}} on XLC++ 7.0 for 15a, 15s, 15S
> {{SIGSEGV}} on XLC++ 8.0 for 12a, 12d, 12D, 15a, 15A
> {{SIGABRT}} on XLC++ 8.0 for 15S
> {{SIGSEGV}} on XLC++ 9.0 for 12a, 15a, 15A
> {{SIGABRT}} on XLC++ 9.0 for 15s
> Here is the output for a 12S build...
> {noformat}
> $ dbx 22.locale.messages.mt
> # INFO (S1) (10 lines):
> # TEXT:
> # COMPILER: IBM VisualAge C++, __IBMCPP__ = 900
> # ENVIRONMENT: powerpc/LP64 running aix-5.3
> # FILE: 22.locale.messages.mt.cpp
> # COMPILED: Apr 9 2008, 16:38:10
> # COMMENT: thread safety
> ############################################################
> # CLAUSE: lib.locale.messages
> # NOTE (S2) (5 lines):
> # TEXT: executing "gencat rwstdmessages.cat rwstdmessages.msg"
> # CLAUSE: lib.locale.messages
> # FILE: process.cpp
> # LINE: 279
> # INFO (S1) (3 lines):
> # TEXT: testing std::messages<charT> with 8 threads, 100000 iterations each
> # CLAUSE: lib.locale.messages
> # INFO (S1) (3 lines):
> # TEXT: exercising std::messages<char>
> # CLAUSE: lib.locale.messages
> Segmentation fault (core dumped)
> $ dbx 22.locale.messages.mt
> Type 'help' for help.
> [using memory image in core]
> reading symbolic information ...
> Segmentation fault in strchr.strchr at 0x900000000048ec0 ($t2)
> 0x900000000048ec0 (strchr+0x140) 8d230001 lbzu r9,0x1(r3)
> (dbx) where
> strchr.strchr() at 0x900000000048ec0
> _C_get_std_facet(__rw::__rw_facet::_C_facet_type,__rw::__rw_facet*(*)(unsigned long,const char*)) const() at 0x100027970
> __rw_get_facet_by_id__4__rwFRCQ2_3std6localeRCQ2_4__rw13__rw_facet_idPCQ2_3std7codecvtXTcTcTPc_@AF18_13() at 0x100070e54
> do_get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x1000373ec
> get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x100037178
> 22.locale.messages.mt.void test_get<char>( \
> const std::messages<char>&,int,int,int,const std::basic_string<char,std::char_traits<char>,std::allocator<char> >&) \
> (msgs = &(...), cat = 0, set = 4, msgid = 4, dflt = &(...)), line 153 in "22.locale.messages.mt.cpp"
> unnamed block in thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> (dbx) quit
> {noformat}
> This is a new test for 4.2.1, so it is a regression.
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[jira] Commented: (STDCXX-845) [XLC++ 7,8,9] SEGV in
22.locale.messages.mt
Posted by "Travis Vitek (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12594284#action_12594284 ]
Travis Vitek commented on STDCXX-845:
-------------------------------------
Because it isn't the locale cache that is having the problem. It is the message catalog cache. It sounds like you haven't read my first comment in this issue recently. Here is a summary of what is happening.
The test opens a message catalog in each thread. Each message catalog gets an entry in the cache. When the message catalog cache grows to capacity, it is reallocated, and some threads may be holding references to locale objects that are being held in the buffer that was just deallocated.
This patch avoids that problem making the reallocated buffer hold pointers to message catalog data, and never moving the actual catalog data around in memory.
> [XLC++ 7,8,9] SEGV in 22.locale.messages.mt
> -------------------------------------------
>
> Key: STDCXX-845
> URL: https://issues.apache.org/jira/browse/STDCXX-845
> Project: C++ Standard Library
> Issue Type: Bug
> Components: 22. Localization
> Affects Versions: 4.2.1
> Environment: AIX 5.3 PowerPC IBM XLC++ 9.0
> AIX 5.3 PowerPC IBM XLC++ 8.0
> AIX 5.3 PowerPC IBM XLC++ 7.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Fix For: 4.2.2
>
> Attachments: stdcxx-845.patch
>
> Original Estimate: 4h
> Time Spent: 9h
> Remaining Estimate: 0h
>
> On AIX, when compiled with XLC++ the test 22.locale.messages.mt fails with {{SIGSEGV}} or {{SIGABRT}}.
> {{SIGSEGV}} on XLC++ 7.0 for 12a, 12d
> {{SIGABRT}} on XLC++ 7.0 for 15a, 15s, 15S
> {{SIGSEGV}} on XLC++ 8.0 for 12a, 12d, 12D, 15a, 15A
> {{SIGABRT}} on XLC++ 8.0 for 15S
> {{SIGSEGV}} on XLC++ 9.0 for 12a, 15a, 15A
> {{SIGABRT}} on XLC++ 9.0 for 15s
> Here is the output for a 12S build...
> {noformat}
> $ dbx 22.locale.messages.mt
> # INFO (S1) (10 lines):
> # TEXT:
> # COMPILER: IBM VisualAge C++, __IBMCPP__ = 900
> # ENVIRONMENT: powerpc/LP64 running aix-5.3
> # FILE: 22.locale.messages.mt.cpp
> # COMPILED: Apr 9 2008, 16:38:10
> # COMMENT: thread safety
> ############################################################
> # CLAUSE: lib.locale.messages
> # NOTE (S2) (5 lines):
> # TEXT: executing "gencat rwstdmessages.cat rwstdmessages.msg"
> # CLAUSE: lib.locale.messages
> # FILE: process.cpp
> # LINE: 279
> # INFO (S1) (3 lines):
> # TEXT: testing std::messages<charT> with 8 threads, 100000 iterations each
> # CLAUSE: lib.locale.messages
> # INFO (S1) (3 lines):
> # TEXT: exercising std::messages<char>
> # CLAUSE: lib.locale.messages
> Segmentation fault (core dumped)
> $ dbx 22.locale.messages.mt
> Type 'help' for help.
> [using memory image in core]
> reading symbolic information ...
> Segmentation fault in strchr.strchr at 0x900000000048ec0 ($t2)
> 0x900000000048ec0 (strchr+0x140) 8d230001 lbzu r9,0x1(r3)
> (dbx) where
> strchr.strchr() at 0x900000000048ec0
> _C_get_std_facet(__rw::__rw_facet::_C_facet_type,__rw::__rw_facet*(*)(unsigned long,const char*)) const() at 0x100027970
> __rw_get_facet_by_id__4__rwFRCQ2_3std6localeRCQ2_4__rw13__rw_facet_idPCQ2_3std7codecvtXTcTcTPc_@AF18_13() at 0x100070e54
> do_get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x1000373ec
> get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x100037178
> 22.locale.messages.mt.void test_get<char>( \
> const std::messages<char>&,int,int,int,const std::basic_string<char,std::char_traits<char>,std::allocator<char> >&) \
> (msgs = &(...), cat = 0, set = 4, msgid = 4, dflt = &(...)), line 153 in "22.locale.messages.mt.cpp"
> unnamed block in thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> (dbx) quit
> {noformat}
> This is a new test for 4.2.1, so it is a regression.
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[jira] Updated: (STDCXX-845) [XLC++ 7,8,9] SEGV in
22.locale.messages.mt
Posted by "Martin Sebor (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-845?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Martin Sebor updated STDCXX-845:
--------------------------------
Component/s: (was: Locales)
22. Localization
Set Component correctly.
> [XLC++ 7,8,9] SEGV in 22.locale.messages.mt
> -------------------------------------------
>
> Key: STDCXX-845
> URL: https://issues.apache.org/jira/browse/STDCXX-845
> Project: C++ Standard Library
> Issue Type: Bug
> Components: 22. Localization
> Affects Versions: 4.2.1
> Environment: AIX 5.3 PowerPC IBM XLC++ 9.0
> AIX 5.3 PowerPC IBM XLC++ 8.0
> AIX 5.3 PowerPC IBM XLC++ 7.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Fix For: 4.2.2
>
> Original Estimate: 4h
> Time Spent: 4h
> Remaining Estimate: 4h
>
> On AIX, when compiled with XLC++ the test 22.locale.messages.mt fails with {{SIGSEGV}} or {{SIGABRT}}.
> {{SIGSEGV}} on XLC++ 7.0 for 12a, 12d
> {{SIGABRT}} on XLC++ 7.0 for 15a, 15s, 15S
> {{SIGSEGV}} on XLC++ 8.0 for 12a, 12d, 12D, 15a, 15A
> {{SIGABRT}} on XLC++ 8.0 for 15S
> {{SIGSEGV}} on XLC++ 9.0 for 12a, 15a, 15A
> {{SIGABRT}} on XLC++ 9.0 for 15s
> Here is the output for a 12S build...
> {noformat}
> $ dbx 22.locale.messages.mt
> # INFO (S1) (10 lines):
> # TEXT:
> # COMPILER: IBM VisualAge C++, __IBMCPP__ = 900
> # ENVIRONMENT: powerpc/LP64 running aix-5.3
> # FILE: 22.locale.messages.mt.cpp
> # COMPILED: Apr 9 2008, 16:38:10
> # COMMENT: thread safety
> ############################################################
> # CLAUSE: lib.locale.messages
> # NOTE (S2) (5 lines):
> # TEXT: executing "gencat rwstdmessages.cat rwstdmessages.msg"
> # CLAUSE: lib.locale.messages
> # FILE: process.cpp
> # LINE: 279
> # INFO (S1) (3 lines):
> # TEXT: testing std::messages<charT> with 8 threads, 100000 iterations each
> # CLAUSE: lib.locale.messages
> # INFO (S1) (3 lines):
> # TEXT: exercising std::messages<char>
> # CLAUSE: lib.locale.messages
> Segmentation fault (core dumped)
> $ dbx 22.locale.messages.mt
> Type 'help' for help.
> [using memory image in core]
> reading symbolic information ...
> Segmentation fault in strchr.strchr at 0x900000000048ec0 ($t2)
> 0x900000000048ec0 (strchr+0x140) 8d230001 lbzu r9,0x1(r3)
> (dbx) where
> strchr.strchr() at 0x900000000048ec0
> _C_get_std_facet(__rw::__rw_facet::_C_facet_type,__rw::__rw_facet*(*)(unsigned long,const char*)) const() at 0x100027970
> __rw_get_facet_by_id__4__rwFRCQ2_3std6localeRCQ2_4__rw13__rw_facet_idPCQ2_3std7codecvtXTcTcTPc_@AF18_13() at 0x100070e54
> do_get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x1000373ec
> get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x100037178
> 22.locale.messages.mt.void test_get<char>( \
> const std::messages<char>&,int,int,int,const std::basic_string<char,std::char_traits<char>,std::allocator<char> >&) \
> (msgs = &(...), cat = 0, set = 4, msgid = 4, dflt = &(...)), line 153 in "22.locale.messages.mt.cpp"
> unnamed block in thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> (dbx) quit
> {noformat}
> This is a new test for 4.2.1, so it is a regression.
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[jira] Commented: (STDCXX-845) [XLC++ 7,8,9] SEGV in
22.locale.messages.mt
Posted by "Martin Sebor (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12594264#action_12594264 ]
Martin Sebor commented on STDCXX-845:
-------------------------------------
Any reason not to use [{{__rw_once}}|http://fisheye6.cenqua.com/browse/stdcxx/tags/4.2.1/src/once.h?r=4.2.x#l137] to make the one-time initialization thread-safe? (Also, please check your line length and the placement of opening braces.)
Btw., where does the [{{22.locale.messages.mt.cpp}}|http://svn.apache.org/repos/asf/stdcxx/tags/4.2.1/tests/localization/22.locale.messages.mt.cpp] exercise the cache? AFAICS, it uses a single global classic locale for all threads, no?
> [XLC++ 7,8,9] SEGV in 22.locale.messages.mt
> -------------------------------------------
>
> Key: STDCXX-845
> URL: https://issues.apache.org/jira/browse/STDCXX-845
> Project: C++ Standard Library
> Issue Type: Bug
> Components: 22. Localization
> Affects Versions: 4.2.1
> Environment: AIX 5.3 PowerPC IBM XLC++ 9.0
> AIX 5.3 PowerPC IBM XLC++ 8.0
> AIX 5.3 PowerPC IBM XLC++ 7.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Fix For: 4.2.2
>
> Attachments: stdcxx-845.patch
>
> Original Estimate: 4h
> Time Spent: 9h
> Remaining Estimate: 0h
>
> On AIX, when compiled with XLC++ the test 22.locale.messages.mt fails with {{SIGSEGV}} or {{SIGABRT}}.
> {{SIGSEGV}} on XLC++ 7.0 for 12a, 12d
> {{SIGABRT}} on XLC++ 7.0 for 15a, 15s, 15S
> {{SIGSEGV}} on XLC++ 8.0 for 12a, 12d, 12D, 15a, 15A
> {{SIGABRT}} on XLC++ 8.0 for 15S
> {{SIGSEGV}} on XLC++ 9.0 for 12a, 15a, 15A
> {{SIGABRT}} on XLC++ 9.0 for 15s
> Here is the output for a 12S build...
> {noformat}
> $ dbx 22.locale.messages.mt
> # INFO (S1) (10 lines):
> # TEXT:
> # COMPILER: IBM VisualAge C++, __IBMCPP__ = 900
> # ENVIRONMENT: powerpc/LP64 running aix-5.3
> # FILE: 22.locale.messages.mt.cpp
> # COMPILED: Apr 9 2008, 16:38:10
> # COMMENT: thread safety
> ############################################################
> # CLAUSE: lib.locale.messages
> # NOTE (S2) (5 lines):
> # TEXT: executing "gencat rwstdmessages.cat rwstdmessages.msg"
> # CLAUSE: lib.locale.messages
> # FILE: process.cpp
> # LINE: 279
> # INFO (S1) (3 lines):
> # TEXT: testing std::messages<charT> with 8 threads, 100000 iterations each
> # CLAUSE: lib.locale.messages
> # INFO (S1) (3 lines):
> # TEXT: exercising std::messages<char>
> # CLAUSE: lib.locale.messages
> Segmentation fault (core dumped)
> $ dbx 22.locale.messages.mt
> Type 'help' for help.
> [using memory image in core]
> reading symbolic information ...
> Segmentation fault in strchr.strchr at 0x900000000048ec0 ($t2)
> 0x900000000048ec0 (strchr+0x140) 8d230001 lbzu r9,0x1(r3)
> (dbx) where
> strchr.strchr() at 0x900000000048ec0
> _C_get_std_facet(__rw::__rw_facet::_C_facet_type,__rw::__rw_facet*(*)(unsigned long,const char*)) const() at 0x100027970
> __rw_get_facet_by_id__4__rwFRCQ2_3std6localeRCQ2_4__rw13__rw_facet_idPCQ2_3std7codecvtXTcTcTPc_@AF18_13() at 0x100070e54
> do_get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x1000373ec
> get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x100037178
> 22.locale.messages.mt.void test_get<char>( \
> const std::messages<char>&,int,int,int,const std::basic_string<char,std::char_traits<char>,std::allocator<char> >&) \
> (msgs = &(...), cat = 0, set = 4, msgid = 4, dflt = &(...)), line 153 in "22.locale.messages.mt.cpp"
> unnamed block in thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> (dbx) quit
> {noformat}
> This is a new test for 4.2.1, so it is a regression.
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[jira] Commented: (STDCXX-845) [XLC++ 7,8,9] SEGV in
22.locale.messages.mt
Posted by "Martin Sebor (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12591653#action_12591653 ]
Martin Sebor commented on STDCXX-845:
-------------------------------------
Good point about {{\_\_rw_get_locale()}}. We should be able to enhance {{\_\_rw_get_message()}} along the way you suggest in 4.3 (i.e., add an overload) and remove the inefficient functions in 5.0. I'm not sure I understand the specific implementation you're proposing but I think I get the basic concept.
I also agree that the {{memcpy()}} hack in {{\_\_rw_manage_cat_data()}} is ugly. We'll be able to avoid the overhead of the reference counting in a clean way once we have rvalue references and move constructors (i.e., sometime in the next decade ;-) In the meantime, if you have an idea for how to implement the copying cleanly and efficiently without the hack I'm interested.
> [XLC++ 7,8,9] SEGV in 22.locale.messages.mt
> -------------------------------------------
>
> Key: STDCXX-845
> URL: https://issues.apache.org/jira/browse/STDCXX-845
> Project: C++ Standard Library
> Issue Type: Bug
> Components: Locales
> Affects Versions: 4.2.1
> Environment: AIX 5.3 PowerPC IBM XLC++ 9.0
> AIX 5.3 PowerPC IBM XLC++ 8.0
> AIX 5.3 PowerPC IBM XLC++ 7.0
> Reporter: Travis Vitek
> Fix For: 4.2.1
>
> Original Estimate: 4h
> Time Spent: 4h
> Remaining Estimate: 4h
>
> On AIX, when compiled with XLC++ the test 22.locale.messages.mt fails with {{SIGSEGV}} or {{SIGABRT}}.
> {{SIGSEGV}} on XLC++ 7.0 for 12a, 12d
> {{SIGABRT}} on XLC++ 7.0 for 15a, 15s, 15S
> {{SIGSEGV}} on XLC++ 8.0 for 12a, 12d, 12D, 15a, 15A
> {{SIGABRT}} on XLC++ 8.0 for 15S
> {{SIGSEGV}} on XLC++ 9.0 for 12a, 15a, 15A
> {{SIGABRT}} on XLC++ 9.0 for 15s
> Here is the output for a 12S build...
> {noformat}
> $ dbx 22.locale.messages.mt
> # INFO (S1) (10 lines):
> # TEXT:
> # COMPILER: IBM VisualAge C++, __IBMCPP__ = 900
> # ENVIRONMENT: powerpc/LP64 running aix-5.3
> # FILE: 22.locale.messages.mt.cpp
> # COMPILED: Apr 9 2008, 16:38:10
> # COMMENT: thread safety
> ############################################################
> # CLAUSE: lib.locale.messages
> # NOTE (S2) (5 lines):
> # TEXT: executing "gencat rwstdmessages.cat rwstdmessages.msg"
> # CLAUSE: lib.locale.messages
> # FILE: process.cpp
> # LINE: 279
> # INFO (S1) (3 lines):
> # TEXT: testing std::messages<charT> with 8 threads, 100000 iterations each
> # CLAUSE: lib.locale.messages
> # INFO (S1) (3 lines):
> # TEXT: exercising std::messages<char>
> # CLAUSE: lib.locale.messages
> Segmentation fault (core dumped)
> $ dbx 22.locale.messages.mt
> Type 'help' for help.
> [using memory image in core]
> reading symbolic information ...
> Segmentation fault in strchr.strchr at 0x900000000048ec0 ($t2)
> 0x900000000048ec0 (strchr+0x140) 8d230001 lbzu r9,0x1(r3)
> (dbx) where
> strchr.strchr() at 0x900000000048ec0
> _C_get_std_facet(__rw::__rw_facet::_C_facet_type,__rw::__rw_facet*(*)(unsigned long,const char*)) const() at 0x100027970
> __rw_get_facet_by_id__4__rwFRCQ2_3std6localeRCQ2_4__rw13__rw_facet_idPCQ2_3std7codecvtXTcTcTPc_@AF18_13() at 0x100070e54
> do_get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x1000373ec
> get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x100037178
> 22.locale.messages.mt.void test_get<char>( \
> const std::messages<char>&,int,int,int,const std::basic_string<char,std::char_traits<char>,std::allocator<char> >&) \
> (msgs = &(...), cat = 0, set = 4, msgid = 4, dflt = &(...)), line 153 in "22.locale.messages.mt.cpp"
> unnamed block in thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> (dbx) quit
> {noformat}
> This is a new test for 4.2.1, so it is a regression.
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[jira] Commented: (STDCXX-845) [XLC++ 7,8,9] SEGV in
22.locale.messages.mt
Posted by "Travis Vitek (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12591504#action_12591504 ]
Travis Vitek commented on STDCXX-845:
-------------------------------------
One other issue that I see is that the {{_STD::messages<T>::do_get()}} method might actually call {{\_\_rw_manage_cat_data()}} up to three times to search the cache. Since each search involves a mutex lock, there are going to be some wasted cycles. It would be nice to reduce this to one search. Perhaps the {{_RW::__rw_get_message()}} function could be changed to fill in a pointer to the {{_RW::\_\_rw_locale}} that is held by the {{_STD::locale}} that is kept in the cache and the {{_RW::\_\_rw_get_locale()}} function could be removed.
So one way to fix this problem would be for the {{\_\_rw_get_locale()}} function to return the {{_RW::\_\_rw_locale*}} that is held internally by the {{_STD::locale}} instance or for {{\_\_rw_open_cat_data}} to cache the body pointer directly. This would work, except that we'd have to provide an internal implementation of {{_STD::use_facet()}} that would take {{_RW::\_\_rw_locale*}}s so we could avoid creating additinal temporaries and doing unnecessary reference counting.
One last thing I thought I'd mention. The {{\_\_rw_manage_cat_data()}} function does something that I would normally try to avoid. In order to avoid doing unnecessary reference counting, calling the {{_STD::locale}} copy constructor and destructor, and duplicating the code for deallocating the locale body, it uses {{memcpy()}} to copy buffers that contain {{_STD::locale}} objects. It also uses placement new and explicitly calls the destructor of the {{_STD::locale}} class when inserting and removing cache entries. While I'm certain that this is all fine, it just seems dirty to me.
> [XLC++ 7,8,9] SEGV in 22.locale.messages.mt
> -------------------------------------------
>
> Key: STDCXX-845
> URL: https://issues.apache.org/jira/browse/STDCXX-845
> Project: C++ Standard Library
> Issue Type: Bug
> Components: Locales
> Affects Versions: 4.2.1
> Environment: AIX 5.3 PowerPC IBM XLC++ 9.0
> AIX 5.3 PowerPC IBM XLC++ 8.0
> AIX 5.3 PowerPC IBM XLC++ 7.0
> Reporter: Travis Vitek
> Fix For: 4.2.1
>
> Original Estimate: 4h
> Time Spent: 4h
> Remaining Estimate: 0h
>
> On AIX, when compiled with XLC++ the test 22.locale.messages.mt fails with {{SIGSEGV}} or {{SIGABRT}}.
> {{SIGSEGV}} on XLC++ 7.0 for 12a, 12d
> {{SIGABRT}} on XLC++ 7.0 for 15a, 15s, 15S
> {{SIGSEGV}} on XLC++ 8.0 for 12a, 12d, 12D, 15a, 15A
> {{SIGABRT}} on XLC++ 8.0 for 15S
> {{SIGSEGV}} on XLC++ 9.0 for 12a, 15a, 15A
> {{SIGABRT}} on XLC++ 9.0 for 15s
> Here is the output for a 12S build...
> {noformat}
> $ dbx 22.locale.messages.mt
> # INFO (S1) (10 lines):
> # TEXT:
> # COMPILER: IBM VisualAge C++, __IBMCPP__ = 900
> # ENVIRONMENT: powerpc/LP64 running aix-5.3
> # FILE: 22.locale.messages.mt.cpp
> # COMPILED: Apr 9 2008, 16:38:10
> # COMMENT: thread safety
> ############################################################
> # CLAUSE: lib.locale.messages
> # NOTE (S2) (5 lines):
> # TEXT: executing "gencat rwstdmessages.cat rwstdmessages.msg"
> # CLAUSE: lib.locale.messages
> # FILE: process.cpp
> # LINE: 279
> # INFO (S1) (3 lines):
> # TEXT: testing std::messages<charT> with 8 threads, 100000 iterations each
> # CLAUSE: lib.locale.messages
> # INFO (S1) (3 lines):
> # TEXT: exercising std::messages<char>
> # CLAUSE: lib.locale.messages
> Segmentation fault (core dumped)
> $ dbx 22.locale.messages.mt
> Type 'help' for help.
> [using memory image in core]
> reading symbolic information ...
> Segmentation fault in strchr.strchr at 0x900000000048ec0 ($t2)
> 0x900000000048ec0 (strchr+0x140) 8d230001 lbzu r9,0x1(r3)
> (dbx) where
> strchr.strchr() at 0x900000000048ec0
> _C_get_std_facet(__rw::__rw_facet::_C_facet_type,__rw::__rw_facet*(*)(unsigned long,const char*)) const() at 0x100027970
> __rw_get_facet_by_id__4__rwFRCQ2_3std6localeRCQ2_4__rw13__rw_facet_idPCQ2_3std7codecvtXTcTcTPc_@AF18_13() at 0x100070e54
> do_get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x1000373ec
> get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x100037178
> 22.locale.messages.mt.void test_get<char>(const std::messages<char>&,int,int,int,const std::basic_string<char,std::char_traits<char>,std::allocator<char> >&)(msgs = &(...), cat = 0, set = 4, msgid = 4, dflt = &(...)), line 153 in "22.locale.messages.mt.cpp"
> unnamed block in thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> (dbx) quit
> {noformat}
> This is a new test for 4.2.1, so it is a regression.
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[jira] Commented: (STDCXX-845) [XLC++ 7,8,9] SEGV in
22.locale.messages.mt
Posted by "Travis Vitek (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12591496#action_12591496 ]
Travis Vitek commented on STDCXX-845:
-------------------------------------
This is ugly. The function {{\_\_rw_manage_cat_data()}} maintains a cache of message catalog data. It initially uses a static buffer of 8 entries. When the cache runs out of space for new entries, it reallocates a new buffer and moves the data over. If the number of entries in the cache shrinks to 4 the static buffer is used again. In the end the problem is that the function {{\_\_rw_get_locale()}} returns a const reference to a locale that is held in this buffer. If another thread triggers a reallocation of the cache, then that returned reference becomes invalid.
> [XLC++ 7,8,9] SEGV in 22.locale.messages.mt
> -------------------------------------------
>
> Key: STDCXX-845
> URL: https://issues.apache.org/jira/browse/STDCXX-845
> Project: C++ Standard Library
> Issue Type: Bug
> Components: Locales
> Affects Versions: 4.2.1
> Environment: AIX 5.3 PowerPC IBM XLC++ 9.0
> AIX 5.3 PowerPC IBM XLC++ 8.0
> AIX 5.3 PowerPC IBM XLC++ 7.0
> Reporter: Travis Vitek
> Fix For: 4.2.1
>
> Original Estimate: 4h
> Remaining Estimate: 4h
>
> On AIX, when compiled with XLC++ the test 22.locale.messages.mt fails with {{SIGSEGV}} or {{SIGABRT}}.
> {{SIGSEGV}} on XLC++ 7.0 for 12a, 12d
> {{SIGABRT}} on XLC++ 7.0 for 15a, 15s, 15S
> {{SIGSEGV}} on XLC++ 8.0 for 12a, 12d, 12D, 15a, 15A
> {{SIGABRT}} on XLC++ 8.0 for 15S
> {{SIGSEGV}} on XLC++ 9.0 for 12a, 15a, 15A
> {{SIGABRT}} on XLC++ 9.0 for 15s
> Here is the output for a 12S build...
> {noformat}
> $ dbx 22.locale.messages.mt
> # INFO (S1) (10 lines):
> # TEXT:
> # COMPILER: IBM VisualAge C++, __IBMCPP__ = 900
> # ENVIRONMENT: powerpc/LP64 running aix-5.3
> # FILE: 22.locale.messages.mt.cpp
> # COMPILED: Apr 9 2008, 16:38:10
> # COMMENT: thread safety
> ############################################################
> # CLAUSE: lib.locale.messages
> # NOTE (S2) (5 lines):
> # TEXT: executing "gencat rwstdmessages.cat rwstdmessages.msg"
> # CLAUSE: lib.locale.messages
> # FILE: process.cpp
> # LINE: 279
> # INFO (S1) (3 lines):
> # TEXT: testing std::messages<charT> with 8 threads, 100000 iterations each
> # CLAUSE: lib.locale.messages
> # INFO (S1) (3 lines):
> # TEXT: exercising std::messages<char>
> # CLAUSE: lib.locale.messages
> Segmentation fault (core dumped)
> $ dbx 22.locale.messages.mt
> Type 'help' for help.
> [using memory image in core]
> reading symbolic information ...
> Segmentation fault in strchr.strchr at 0x900000000048ec0 ($t2)
> 0x900000000048ec0 (strchr+0x140) 8d230001 lbzu r9,0x1(r3)
> (dbx) where
> strchr.strchr() at 0x900000000048ec0
> _C_get_std_facet(__rw::__rw_facet::_C_facet_type,__rw::__rw_facet*(*)(unsigned long,const char*)) const() at 0x100027970
> __rw_get_facet_by_id__4__rwFRCQ2_3std6localeRCQ2_4__rw13__rw_facet_idPCQ2_3std7codecvtXTcTcTPc_@AF18_13() at 0x100070e54
> do_get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x1000373ec
> get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x100037178
> 22.locale.messages.mt.void test_get<char>(const std::messages<char>&,int,int,int,const std::basic_string<char,std::char_traits<char>,std::allocator<char> >&)(msgs = &(...), cat = 0, set = 4, msgid = 4, dflt = &(...)), line 153 in "22.locale.messages.mt.cpp"
> unnamed block in thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> (dbx) quit
> {noformat}
> This is a new test for 4.2.1, so it is a regression.
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[jira] Commented: (STDCXX-845) [XLC++ 7,8,9] SEGV in
22.locale.messages.mt
Posted by "Martin Sebor (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/STDCXX-845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12591500#action_12591500 ]
Martin Sebor commented on STDCXX-845:
-------------------------------------
Great (and quick) analysis! I wonder deallocating the cache only when the number of catalogs drops to zero would fix it. Or do we have the same problem when growing the size of the cache?
> [XLC++ 7,8,9] SEGV in 22.locale.messages.mt
> -------------------------------------------
>
> Key: STDCXX-845
> URL: https://issues.apache.org/jira/browse/STDCXX-845
> Project: C++ Standard Library
> Issue Type: Bug
> Components: Locales
> Affects Versions: 4.2.1
> Environment: AIX 5.3 PowerPC IBM XLC++ 9.0
> AIX 5.3 PowerPC IBM XLC++ 8.0
> AIX 5.3 PowerPC IBM XLC++ 7.0
> Reporter: Travis Vitek
> Fix For: 4.2.1
>
> Original Estimate: 4h
> Time Spent: 4h
> Remaining Estimate: 0h
>
> On AIX, when compiled with XLC++ the test 22.locale.messages.mt fails with {{SIGSEGV}} or {{SIGABRT}}.
> {{SIGSEGV}} on XLC++ 7.0 for 12a, 12d
> {{SIGABRT}} on XLC++ 7.0 for 15a, 15s, 15S
> {{SIGSEGV}} on XLC++ 8.0 for 12a, 12d, 12D, 15a, 15A
> {{SIGABRT}} on XLC++ 8.0 for 15S
> {{SIGSEGV}} on XLC++ 9.0 for 12a, 15a, 15A
> {{SIGABRT}} on XLC++ 9.0 for 15s
> Here is the output for a 12S build...
> {noformat}
> $ dbx 22.locale.messages.mt
> # INFO (S1) (10 lines):
> # TEXT:
> # COMPILER: IBM VisualAge C++, __IBMCPP__ = 900
> # ENVIRONMENT: powerpc/LP64 running aix-5.3
> # FILE: 22.locale.messages.mt.cpp
> # COMPILED: Apr 9 2008, 16:38:10
> # COMMENT: thread safety
> ############################################################
> # CLAUSE: lib.locale.messages
> # NOTE (S2) (5 lines):
> # TEXT: executing "gencat rwstdmessages.cat rwstdmessages.msg"
> # CLAUSE: lib.locale.messages
> # FILE: process.cpp
> # LINE: 279
> # INFO (S1) (3 lines):
> # TEXT: testing std::messages<charT> with 8 threads, 100000 iterations each
> # CLAUSE: lib.locale.messages
> # INFO (S1) (3 lines):
> # TEXT: exercising std::messages<char>
> # CLAUSE: lib.locale.messages
> Segmentation fault (core dumped)
> $ dbx 22.locale.messages.mt
> Type 'help' for help.
> [using memory image in core]
> reading symbolic information ...
> Segmentation fault in strchr.strchr at 0x900000000048ec0 ($t2)
> 0x900000000048ec0 (strchr+0x140) 8d230001 lbzu r9,0x1(r3)
> (dbx) where
> strchr.strchr() at 0x900000000048ec0
> _C_get_std_facet(__rw::__rw_facet::_C_facet_type,__rw::__rw_facet*(*)(unsigned long,const char*)) const() at 0x100027970
> __rw_get_facet_by_id__4__rwFRCQ2_3std6localeRCQ2_4__rw13__rw_facet_idPCQ2_3std7codecvtXTcTcTPc_@AF18_13() at 0x100070e54
> do_get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x1000373ec
> get__Q2_3std8messagesXTc_CFiN21RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__() at 0x100037178
> 22.locale.messages.mt.void test_get<char>(const std::messages<char>&,int,int,int,const std::basic_string<char,std::char_traits<char>,std::allocator<char> >&)(msgs = &(...), cat = 0, set = 4, msgid = 4, dflt = &(...)), line 153 in "22.locale.messages.mt.cpp"
> unnamed block in thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> thread_func(void*)( = 0x0ffffffffffff2e0), line 189 in "22.locale.messages.mt.cpp"
> (dbx) quit
> {noformat}
> This is a new test for 4.2.1, so it is a regression.
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