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Posted to bugs@httpd.apache.org by bu...@apache.org on 2013/07/30 09:19:39 UTC
[Bug 55327] New: Segmentation fault when stopping Apache normally
https://issues.apache.org/bugzilla/show_bug.cgi?id=55327
Bug ID: 55327
Summary: Segmentation fault when stopping Apache normally
Product: Apache httpd-2
Version: 2.4.6
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P2
Component: All
Assignee: bugs@httpd.apache.org
Reporter: leif.gustafsson@hp.com
Apache 2.4.6 seg faults when stopped, failing to free semaphore arrays. I have
had the same issue with 2.4.4 also.
We are running on RH 6.2. We have built the Apache ourselves. We are using APR
1.4.6 in this case, but have the same issue with 1.4.8. We are using apr-util
1.5.2.
I did a gdb trace as seen below.
BR,
Leif Gustafsson
GDB trace
---
Continuing.
Program received signal SIGTERM, Terminated.
0x00000034e10de2d3 in __select_nocancel () from /lib64/libc.so.6
(gdb) c
Continuing.
Program received signal SIGSEGV, Segmentation fault.
apr_palloc (pool=0x16acff8, in_size=38) at memory/unix/apr_pools.c:684
684 if (size <= node_free_space(active)) {
(gdb) bt
#0 apr_palloc (pool=0x16acff8, in_size=38) at memory/unix/apr_pools.c:684
#1 0x00007eff89a43ccc in apr_pstrcat (a=0x16acff8) at
strings/apr_strings.c:149
#2 0x00007eff85c00bdb in socache_dbm_destroy (ctx=0x16a5b28, s=<value
optimized out>) at mod_socache_dbm.c:179
#3 0x00007eff859e9cda in ssl_scache_kill (s=0x1385558) at ssl_scache.c:100
#4 0x00007eff859d7c56 in ssl_init_ModuleKill (data=<value optimized out>) at
ssl_engine_init.c:1745
#5 0x00007eff89a4d15e in run_cleanups (pool=0x135c138) at
memory/unix/apr_pools.c:2352
#6 apr_pool_destroy (pool=0x135c138) at memory/unix/apr_pools.c:814
#7 0x00007eff89a4d135 in apr_pool_destroy (pool=0x135a128) at
memory/unix/apr_pools.c:811
#8 0x000000000042813f in destroy_and_exit_process (process=0x135a218,
process_exit_value=0) at main.c:264
#9 0x0000000000429486 in main (argc=5, argv=0x7fff7770ae58) at main.c:784
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[Bug 55327] Segmentation fault when stopping Apache 2.4.6 normally
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=55327
Michael Orlitzky <mi...@orlitzky.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |michael@orlitzky.com
--- Comment #2 from Michael Orlitzky <mi...@orlitzky.com> ---
We received a similar report at,
https://bugs.gentoo.org/show_bug.cgi?id=525222
The stack trace is different, but both wind up in apr_palloc, at
memory/unix/apr_pools.c:684. Maybe related, who knows.
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[Bug 55327] Segmentation fault when stopping Apache 2.4.6 normally
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=55327
Leif Gustafsson <le...@hp.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |leif.gustafsson@hp.com
Summary|Segmentation fault when |Segmentation fault when
|stopping Apache normally |stopping Apache 2.4.6
| |normally
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[Bug 55327] Segmentation fault when stopping Apache 2.4.6 normally
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=55327
--- Comment #1 from Leif Gustafsson <le...@hp.com> ---
When started we have 259 semaphores allocated.
When stopped 255 semaphores are left allocated. Is the number 255 a coincidence
or not. ?
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