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Posted to users@httpd.apache.org by Mark Thom <th...@gmail.com> on 2014/03/15 17:38:23 UTC
[users@httpd] Apache/2.2.22 - child pid exit signal Bus error (7)
Hello,
I'm fighting from few days with "signal Bus error(7)" on my Apache
instance, and i can't figure out what is wrong and what thing is causing
this error.. Thanks in advance for any suggestions what can be wrong!
Details
=======
OS: Debian 7.4 amd64
# apache2 -V
Server version: Apache/2.2.22 (Debian)
Server built: Feb 1 2014 21:26:04
Server's Module Magic Number: 20051115:30
Server loaded: APR 1.4.6, APR-Util 1.4.1
Compiled using: APR 1.4.6, APR-Util 1.4.1
Architecture: 64-bit
Server MPM: Prefork
threaded: no
forked: yes (variable process count)
Server compiled with....
-D APACHE_MPM_DIR="server/mpm/prefork"
-D APR_HAS_SENDFILE
-D APR_HAS_MMAP
-D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)
-D APR_USE_SYSVSEM_SERIALIZE
-D APR_USE_PTHREAD_SERIALIZE
-D APR_HAS_OTHER_CHILD
-D AP_HAVE_RELIABLE_PIPED_LOGS
-D DYNAMIC_MODULE_LIMIT=128
-D HTTPD_ROOT="/etc/apache2"
-D SUEXEC_BIN="/usr/lib/apache2/suexec"
-D DEFAULT_PIDLOG="/var/run/apache2.pid"
-D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
-D DEFAULT_LOCKFILE="/var/run/apache2/accept.lock"
-D DEFAULT_ERRORLOG="logs/error_log"
-D AP_TYPES_CONFIG_FILE="mime.types"
-D SERVER_CONFIG_FILE="apache2.conf"
Module enabled:
LoadModule alias_module /usr/lib/apache2/modules/mod_alias.so
LoadModule auth_basic_module /usr/lib/apache2/modules/mod_auth_basic.so
LoadModule authn_file_module /usr/lib/apache2/modules/mod_authn_file.so
LoadModule authz_default_module
/usr/lib/apache2/modules/mod_authz_default.so
LoadModule authz_groupfile_module
/usr/lib/apache2/modules/mod_authz_groupfile.so
LoadModule authz_host_module /usr/lib/apache2/modules/mod_authz_host.so
LoadModule authz_user_module /usr/lib/apache2/modules/mod_authz_user.so
LoadModule autoindex_module /usr/lib/apache2/modules/mod_autoindex.so
LoadModule deflate_module /usr/lib/apache2/modules/mod_deflate.so
LoadModule dir_module /usr/lib/apache2/modules/mod_dir.so
LoadModule env_module /usr/lib/apache2/modules/mod_env.so
LoadModule headers_module /usr/lib/apache2/modules/mod_headers.so
LoadModule mime_module /usr/lib/apache2/modules/mod_mime.so
LoadModule negotiation_module /usr/lib/apache2/modules/mod_negotiation.so
LoadModule php5_module /usr/lib/apache2/modules/libphp5.so
LoadModule reqtimeout_module /usr/lib/apache2/modules/mod_reqtimeout.so
LoadModule rewrite_module /usr/lib/apache2/modules/mod_rewrite.so
LoadModule setenvif_module /usr/lib/apache2/modules/mod_setenvif.so
LoadModule ssl_module /usr/lib/apache2/modules/mod_ssl.so
LoadModule status_module /usr/lib/apache2/modules/mod_status.so
LoadModule unique_id_module /usr/lib/apache2/modules/mod_unique_id.so
Message from error logs:
[Sat Mar 15 14:56:01 2014] [notice] child pid 18171 exit signal Bus error
(7), possible coredump in /tmp/dump
[Sat Mar 15 15:02:32 2014] [notice] child pid 18293 exit signal Bus error
(7), possible coredump in /tmp/dump
[Sat Mar 15 15:08:26 2014] [notice] child pid 18172 exit signal Bus error
(7), possible coredump in /tmp/dump
[Sat Mar 15 15:23:00 2014] [notice] child pid 18181 exit signal Bus error
(7), possible coredump in /tmp/dump
There is no more details in accesslog / php logs.
GDB:
# gdb /usr/sbin/apache2 core
GNU gdb (GDB) 7.4.1-debian
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html
>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/sbin/apache2...Reading symbols from
/usr/lib/debug/usr/sbin/apache2-mpm-prefork...done.
done.
[New LWP 23033]
warning: Can't read pathname for load map: Input/output error.
warning:
"/usr/lib/debug/.build-id/84/bee3ec119629745f1abb696a297d23ef52d3ba.debug":
separate debug info file has no debug info
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
warning: the debug information found in
"/usr/lib/debug//usr/lib/php5/20100525/mysql.so" does not match
"/usr/lib/php5/20100525/mysql.so" (CRC mismatch).
warning: the debug information found in
"/usr/lib/debug/usr/lib/php5/20100525/mysql.so" does not match
"/usr/lib/php5/20100525/mysql.so" (CRC mismatch).
warning: the debug information found in
"/usr/lib/debug//usr/lib/php5/20100525/mysqli.so" does not match
"/usr/lib/php5/20100525/mysqli.so" (CRC mismatch).
warning: the debug information found in
"/usr/lib/debug/usr/lib/php5/20100525/mysqli.so" does not match
"/usr/lib/php5/20100525/mysqli.so" (CRC mismatch).
warning: the debug information found in
"/usr/lib/debug//usr/lib/php5/20100525/pdo_mysql.so" does not match
"/usr/lib/php5/20100525/pdo_mysql.so" (CRC mismatch).
warning: the debug information found in
"/usr/lib/debug/usr/lib/php5/20100525/pdo_mysql.so" does not match
"/usr/lib/php5/20100525/pdo_mysql.so" (CRC mismatch).
Core was generated by `/usr/sbin/apache2 -k start'.
Program terminated with signal 7, Bus error.
#0 0x00007f74d7778300 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
(gdb) bt
#0 0x00007f74d7778300 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f74d40d7658 in memcpy (__len=16384, __src=0x7f74d2066000,
__dest=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/string3.h:52
#2 do_ssl3_write (s=s@entry=0x7f74da39a5f0, type=type@entry=23,
buf=buf@entry=0x7f74d2066000 <Address 0x7f74d2066000 out of bounds>,
len=16384,
create_empty_fragment=create_empty_fragment@entry=0) at s3_pkt.c:798
#3 0x00007f74d40d77c3 in ssl3_write_bytes (s=0x7f74da39a5f0, type=23,
buf_=0x7f74d2066000, len=<optimized out>) at s3_pkt.c:609
#4 0x00007f74d0ba3f1d in ssl_filter_write (len=40766, data=<optimized
out>, f=<optimized out>) at ssl_engine_io.c:801
#5 ssl_io_filter_output (f=0x7f74d59bcbd0, bb=0x7f74d2079bd8) at
ssl_engine_io.c:1519
#6 0x00007f74d850bc7e in ap_http_header_filter (f=0x7f74d20825b8,
b=0x7f74d2079bd8) at http_filters.c:1327
#7 0x00007f74d84ebc00 in ap_content_length_filter (f=0x7f74d2082590,
b=0x7f74d2079bd8) at protocol.c:1371
#8 0x00007f74d850cf6f in ap_byterange_filter (f=0x7f74d2082568,
bb=0x7f74d2079bd8) at byterange_filter.c:262
#9 0x00007f74d84eefeb in default_handler (r=0x7f74d20810a0) at core.c:3815
#10 0x00007f74d84f9b50 in ap_run_handler (r=0x7f74d20810a0) at config.c:159
#11 0x00007f74d84f9f9b in ap_invoke_handler (r=r@entry=0x7f74d20810a0) at
config.c:377
#12 0x00007f74d850a078 in ap_process_request (r=r@entry=0x7f74d20810a0) at
http_request.c:282
#13 0x00007f74d8506f38 in ap_process_http_connection (c=0x7f74d59bc290) at
http_core.c:190
#14 0x00007f74d8500510 in ap_run_process_connection (c=0x7f74d59bc290) at
connection.c:43
#15 0x00007f74d85008f8 in ap_process_connection (c=c@entry=0x7f74d59bc290,
csd=<optimized out>) at connection.c:190
#16 0x00007f74d850ec2e in child_main (child_num_arg=child_num_arg@entry=13)
at prefork.c:667
#17 0x00007f74d850f382 in make_child (slot=13, s=0x7f74d849a818) at
prefork.c:768
#18 make_child (s=0x7f74d849a818, slot=13) at prefork.c:696
#19 0x00007f74d850fee6 in perform_idle_server_maintenance (p=<optimized
out>) at prefork.c:903
#20 ap_mpm_run (_pconf=_pconf@entry=0x7f74d84a0028, plog=<optimized out>,
s=s@entry=0x7f74d849a818) at prefork.c:1107
#21 0x00007f74d84e4826 in main (argc=3, argv=0x7fff19de3128) at main.c:755
Re: [users@httpd] Apache/2.2.22 - child pid exit signal Bus error (7)
Posted by Mark Thom <th...@gmail.com>.
Thanks for your reply, there were a lot of requests during one thread so it
was really hard to find the broken request.
But i found a solution and the "signal Bus Error(7)" goes away.
I added in my apache conf file "EnableMMAP off" - and now it's seems to be
fine.
2014-03-17 13:36 GMT+01:00 Rainer M. Canavan <ra...@sevenval.com>:
>
> On Mar 15, 2014, at 17:38 , Mark Thom <th...@gmail.com> wrote:
>
> > Hello,
> > I'm fighting from few days with "signal Bus error(7)" on my Apache
> instance, and i can't figure out what is wrong and what thing is causing
> this error.. Thanks in advance for any suggestions what can be wrong!
>
> If you don't know what kind of request is causing the core dumps,
> check frame 11 or 12 and print *r. There should be enough information
> to identify the URL, remote IP and User-Agent. The gdbinit script
> supplied with the apache sources may have some helpful macros to
> inspect httpd's internal data structures.
>
>
> rainer
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
> For additional commands, e-mail: users-help@httpd.apache.org
>
>
Re: [users@httpd] Apache/2.2.22 - child pid exit signal Bus error (7)
Posted by "Rainer M. Canavan" <ra...@sevenval.com>.
On Mar 15, 2014, at 17:38 , Mark Thom <th...@gmail.com> wrote:
> Hello,
> I'm fighting from few days with "signal Bus error(7)" on my Apache instance, and i can't figure out what is wrong and what thing is causing this error.. Thanks in advance for any suggestions what can be wrong!
If you don't know what kind of request is causing the core dumps,
check frame 11 or 12 and print *r. There should be enough information
to identify the URL, remote IP and User-Agent. The gdbinit script
supplied with the apache sources may have some helpful macros to
inspect httpd's internal data structures.
rainer
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
For additional commands, e-mail: users-help@httpd.apache.org
[users@httpd] Re: Apache/2.2.22 - child pid exit signal Bus error (7)
Posted by Mark Thom <th...@gmail.com>.
Ok i've got something more, I installed missing libc6 detached debugging
symbols , and now i've got something like this
Core was generated by `/usr/sbin/apache2 -k start'.
Program terminated with signal 7, Bus error.
#0 __memcpy_ssse3 () at ../sysdeps/x86_64/multiarch/memcpy-ssse3.S:119
119 ../sysdeps/x86_64/multiarch/memcpy-ssse3.S: No such file or
directory.
(gdb) where
#0 __memcpy_ssse3 () at ../sysdeps/x86_64/multiarch/memcpy-ssse3.S:119
#1 0x00007f74d40d7658 in memcpy (__len=1559, __src=0x7f74d2070000,
__dest=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/string3.h:52
#2 do_ssl3_write (s=s@entry=0x7f74da519550, type=type@entry=23,
buf=buf@entry=0x7f74d2070000 <Address 0x7f74d2070000 out of bounds>,
len=1559, create_empty_fragment=create_empty_fragment@entry=0)
at s3_pkt.c:798
#3 0x00007f74d40d77c3 in ssl3_write_bytes (s=0x7f74da519550, type=23,
buf_=0x7f74d2068000, len=<optimized out>) at s3_pkt.c:609
#4 0x00007f74d0ba3f1d in ssl_filter_write (len=34327, data=<optimized
out>, f=<optimized out>) at ssl_engine_io.c:801
#5 ssl_io_filter_output (f=0x7f74d59bcbd0, bb=0x7f74d2f77bb8) at
ssl_engine_io.c:1519
#6 0x00007f74d850bc7e in ap_http_header_filter (f=0x7f74d20745b8,
b=0x7f74d2f77bb8) at http_filters.c:1327
#7 0x00007f74d84ebc00 in ap_content_length_filter (f=0x7f74d2074590,
b=0x7f74d2f77bb8) at protocol.c:1371
#8 0x00007f74d850cf6f in ap_byterange_filter (f=0x7f74d2074568,
bb=0x7f74d2f77bb8) at byterange_filter.c:262
#9 0x00007f74d84eefeb in default_handler (r=0x7f74d20730a0) at core.c:3815
#10 0x00007f74d84f9b50 in ap_run_handler (r=0x7f74d20730a0) at config.c:159
#11 0x00007f74d84f9f9b in ap_invoke_handler (r=r@entry=0x7f74d20730a0) at
config.c:377
#12 0x00007f74d850a078 in ap_process_request (r=r@entry=0x7f74d20730a0) at
http_request.c:282
#13 0x00007f74d8506f38 in ap_process_http_connection (c=0x7f74d59bc290) at
http_core.c:190
#14 0x00007f74d8500510 in ap_run_process_connection (c=0x7f74d59bc290) at
connection.c:43
#15 0x00007f74d85008f8 in ap_process_connection (c=c@entry=0x7f74d59bc290,
csd=<optimized out>) at connection.c:190
#16 0x00007f74d850ec2e in child_main (child_num_arg=child_num_arg@entry=14)
at prefork.c:667
#17 0x00007f74d850f382 in make_child (slot=14, s=0x7f74d849a818) at
prefork.c:768
#18 make_child (s=0x7f74d849a818, slot=14) at prefork.c:696
#19 0x00007f74d850fee6 in perform_idle_server_maintenance (p=<optimized
out>) at prefork.c:903
#20 ap_mpm_run (_pconf=_pconf@entry=0x7f74d84a0028, plog=<optimized out>,
s=s@entry=0x7f74d849a818) at prefork.c:1107
#21 0x00007f74d84e4826 in main (argc=3, argv=0x7fff19de3128) at main.c:755
(gdb) bt full
#0 __memcpy_ssse3 () at ../sysdeps/x86_64/multiarch/memcpy-ssse3.S:119
No locals.
#1 0x00007f74d40d7658 in memcpy (__len=1559, __src=0x7f74d2070000,
__dest=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/string3.h:52
No locals.
#2 do_ssl3_write (s=s@entry=0x7f74da519550, type=type@entry=23,
buf=buf@entry=0x7f74d2070000 <Address 0x7f74d2070000 out of bounds>,
len=1559, create_empty_fragment=create_empty_fragment@entry=0)
at s3_pkt.c:798
p = 0x7f74da396358 "\247\066\226+\215\301\217\204$\004\312
\203\031\212\\Bێ\263"
plen = 0x7f74da396356 "@ \247\066\226+\215\301\217\204$\004\312
\203\031\212\\Bێ\263"
i = <optimized out>
mac_size = 0
clear = <optimized out>
prefix_len = <optimized out>
eivlen = <optimized out>
align = <optimized out>
wr = 0x7f74da54fb08
wb = 0x7f74da54fab8
sess = <optimized out>
#3 0x00007f74d40d77c3 in ssl3_write_bytes (s=0x7f74da519550, type=23,
buf_=0x7f74d2068000, len=<optimized out>) at s3_pkt.c:609
buf = 0x7f74d2068000 <Address 0x7f74d2068000 out of bounds>
tot = 32768
n = 1559
nw = <optimized out>
i = <optimized out>
#4 0x00007f74d0ba3f1d in ssl_filter_write (len=34327, data=<optimized
out>, f=<optimized out>) at ssl_engine_io.c:801
filter_ctx = <optimized out>
outctx = 0x7f74d2084028
res = <optimized out>
#5 ssl_io_filter_output (f=0x7f74d59bcbd0, bb=0x7f74d2f77bb8) at
ssl_engine_io.c:1519
data = 0x7f74d2068000 <Address 0x7f74d2068000 out of bounds>
len = 34327
bucket = 0x7f74d2f784c8
status = <optimized out>
filter_ctx = 0x7f74d59bcb98
inctx = <optimized out>
outctx = 0x7f74d2084028
rblock = APR_NONBLOCK_READ
#6 0x00007f74d850bc7e in ap_http_header_filter (f=0x7f74d20745b8,
b=0x7f74d2f77bb8) at http_filters.c:1327
r = 0x7f74d20730a0
c = 0x7f74d2073c80
clheader = <optimized out>
protocol = 0x7f74d851290d "HTTP/1.1"
e = <optimized out>
b2 = <optimized out>
h = {pool = 0x7f74d2073028, bb = 0x7f74d2f77c98}
ctx = 0x0
ctype = <optimized out>
eb = <optimized out>
#7 0x00007f74d84ebc00 in ap_content_length_filter (f=0x7f74d2074590,
b=0x7f74d2f77bb8) at protocol.c:1371
r = 0x7f74d20730a0
ctx = 0x7f74d2f77c10
e = 0x7f74d2f782e8
---Type <return> to continue, or q <return> to quit---
eos = <optimized out>
eblock = <optimized out>
#8 0x00007f74d850cf6f in ap_byterange_filter (f=0x7f74d2074568,
bb=0x7f74d2f77bb8) at byterange_filter.c:262
r = 0x7f74d20730a0
c = 0x7f74d59bc290
e = <optimized out>
bsend = <optimized out>
tmpbb = <optimized out>
range_start = <optimized out>
range_end = <optimized out>
clength = 34327
rv = <optimized out>
found = 0
boundary = 0x0
bound_head = 0x0
indexes = <optimized out>
idx = <optimized out>
i = <optimized out>
original_status = 200
max_ranges = 200
#9 0x00007f74d84eefeb in default_handler (r=0x7f74d20730a0) at core.c:3815
c = 0x7f74d59bc290
bb = 0x7f74d2f77bb8
e = <optimized out>
d = <optimized out>
errstatus = <optimized out>
fd = 0x7f74d2f77a68
status = <optimized out>
bld_content_md5 = <optimized out>
#10 0x00007f74d84f9b50 in ap_run_handler (r=0x7f74d20730a0) at config.c:159
pHook = 0x7f74d8472a08
n = 5
rv = -633773224
#11 0x00007f74d84f9f9b in ap_invoke_handler (r=r@entry=0x7f74d20730a0) at
config.c:377
handler = <optimized out>
p = <optimized out>
result = <optimized out>
old_handler = 0x0
ignore = <optimized out>
#12 0x00007f74d850a078 in ap_process_request (r=r@entry=0x7f74d20730a0) at
http_request.c:282
access_status = <optimized out>
#13 0x00007f74d8506f38 in ap_process_http_connection (c=0x7f74d59bc290) at
http_core.c:190
r = 0x7f74d20730a0
csd = 0x7f74d59bc0a0
#14 0x00007f74d8500510 in ap_run_process_connection (c=0x7f74d59bc290) at
connection.c:43
pHook = 0x7f74d8473098
n = 1
rv = -633773224
#15 0x00007f74d85008f8 in ap_process_connection (c=c@entry=0x7f74d59bc290,
csd=<optimized out>) at connection.c:190
rc = <optimized out>
#16 0x00007f74d850ec2e in child_main (child_num_arg=child_num_arg@entry=14)
at prefork.c:667
---Type <return> to continue, or q <return> to quit---
current_conn = 0x7f74d59bc290
csd = 0x7f74d59bc0a0
ptrans = 0x7f74d59bc028
allocator = 0x7f74da387d70
status = <optimized out>
i = <optimized out>
lr = <optimized out>
pollset = 0x7f74d59be130
sbh = 0x7f74d59be128
bucket_alloc = 0x7f74d2f78028
last_poll_idx = 1
#17 0x00007f74d850f382 in make_child (slot=14, s=0x7f74d849a818) at
prefork.c:768
pid = 0
#18 make_child (s=0x7f74d849a818, slot=14) at prefork.c:696
No locals.
#19 0x00007f74d850fee6 in perform_idle_server_maintenance (p=<optimized
out>) at prefork.c:903
i = <optimized out>
idle_count = <optimized out>
ws = <optimized out>
free_length = <optimized out>
free_slots = {14, 16, 27, 28, 21, 22, 23, 24, -636202856, 32628,
-633834224, 32628, -636202848, 32628, -746811863, 32628, -665773615, 32628,
0, 0, 0, 0, 0, 0, -666238936, 32628,
-668038208, 32628, -666238936, 32628, -668038176, 32628}
last_non_dead = <optimized out>
total_non_dead = <optimized out>
#20 ap_mpm_run (_pconf=_pconf@entry=0x7f74d84a0028, plog=<optimized out>,
s=s@entry=0x7f74d849a818) at prefork.c:1107
status = 7
pid = {pid = -1, in = 0x7f74d82e8c70, out = 0x7f7400316562, err =
0x153}
child_slot = <optimized out>
exitwhy = 6
processed_status = <optimized out>
index = <optimized out>
remaining_children_to_start = 0
rv = <optimized out>
#21 0x00007f74d84e4826 in main (argc=3, argv=0x7fff19de3128) at main.c:755
c = 0 '\000'
configtestonly = 0
confname = 0x7f74d85118ea "apache2.conf"
def_server_root = 0x7f74d85118dd "/etc/apache2"
temp_error_log = <optimized out>
error = <optimized out>
process = 0x7f74d84a2118
server_conf = 0x7f74d849a818
pglobal = <optimized out>
pconf = 0x7f74d84a0028
plog = 0x7f74d846c028
ptemp = 0x7f74d8498028
pcommands = 0x7f74d849e028
opt = 0x7f74d849e118
rv = 0
mod = <optimized out>
optarg = 0x7f74d84a2028 "(\300J\330t\177"
---Type <return> to continue, or q <return> to quit---
signal_server = <optimized out>
2014-03-15 17:38 GMT+01:00 Mark Thom <th...@gmail.com>:
> Hello,
> I'm fighting from few days with "signal Bus error(7)" on my Apache
> instance, and i can't figure out what is wrong and what thing is causing
> this error.. Thanks in advance for any suggestions what can be wrong!
>
> Details
> =======
> OS: Debian 7.4 amd64
>
> # apache2 -V
>
> Server version: Apache/2.2.22 (Debian)
> Server built: Feb 1 2014 21:26:04
> Server's Module Magic Number: 20051115:30
> Server loaded: APR 1.4.6, APR-Util 1.4.1
> Compiled using: APR 1.4.6, APR-Util 1.4.1
> Architecture: 64-bit
> Server MPM: Prefork
> threaded: no
> forked: yes (variable process count)
> Server compiled with....
> -D APACHE_MPM_DIR="server/mpm/prefork"
> -D APR_HAS_SENDFILE
> -D APR_HAS_MMAP
> -D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)
> -D APR_USE_SYSVSEM_SERIALIZE
> -D APR_USE_PTHREAD_SERIALIZE
> -D APR_HAS_OTHER_CHILD
> -D AP_HAVE_RELIABLE_PIPED_LOGS
> -D DYNAMIC_MODULE_LIMIT=128
> -D HTTPD_ROOT="/etc/apache2"
> -D SUEXEC_BIN="/usr/lib/apache2/suexec"
> -D DEFAULT_PIDLOG="/var/run/apache2.pid"
> -D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
> -D DEFAULT_LOCKFILE="/var/run/apache2/accept.lock"
> -D DEFAULT_ERRORLOG="logs/error_log"
> -D AP_TYPES_CONFIG_FILE="mime.types"
> -D SERVER_CONFIG_FILE="apache2.conf"
>
>
> Module enabled:
>
> LoadModule alias_module /usr/lib/apache2/modules/mod_alias.so
> LoadModule auth_basic_module /usr/lib/apache2/modules/mod_auth_basic.so
> LoadModule authn_file_module /usr/lib/apache2/modules/mod_authn_file.so
> LoadModule authz_default_module
> /usr/lib/apache2/modules/mod_authz_default.so
> LoadModule authz_groupfile_module
> /usr/lib/apache2/modules/mod_authz_groupfile.so
> LoadModule authz_host_module /usr/lib/apache2/modules/mod_authz_host.so
> LoadModule authz_user_module /usr/lib/apache2/modules/mod_authz_user.so
> LoadModule autoindex_module /usr/lib/apache2/modules/mod_autoindex.so
> LoadModule deflate_module /usr/lib/apache2/modules/mod_deflate.so
> LoadModule dir_module /usr/lib/apache2/modules/mod_dir.so
> LoadModule env_module /usr/lib/apache2/modules/mod_env.so
> LoadModule headers_module /usr/lib/apache2/modules/mod_headers.so
> LoadModule mime_module /usr/lib/apache2/modules/mod_mime.so
> LoadModule negotiation_module /usr/lib/apache2/modules/mod_negotiation.so
> LoadModule php5_module /usr/lib/apache2/modules/libphp5.so
> LoadModule reqtimeout_module /usr/lib/apache2/modules/mod_reqtimeout.so
> LoadModule rewrite_module /usr/lib/apache2/modules/mod_rewrite.so
> LoadModule setenvif_module /usr/lib/apache2/modules/mod_setenvif.so
> LoadModule ssl_module /usr/lib/apache2/modules/mod_ssl.so
> LoadModule status_module /usr/lib/apache2/modules/mod_status.so
> LoadModule unique_id_module /usr/lib/apache2/modules/mod_unique_id.so
>
>
>
> Message from error logs:
>
> [Sat Mar 15 14:56:01 2014] [notice] child pid 18171 exit signal Bus error
> (7), possible coredump in /tmp/dump
> [Sat Mar 15 15:02:32 2014] [notice] child pid 18293 exit signal Bus error
> (7), possible coredump in /tmp/dump
> [Sat Mar 15 15:08:26 2014] [notice] child pid 18172 exit signal Bus error
> (7), possible coredump in /tmp/dump
> [Sat Mar 15 15:23:00 2014] [notice] child pid 18181 exit signal Bus error
> (7), possible coredump in /tmp/dump
>
> There is no more details in accesslog / php logs.
>
>
> GDB:
>
> # gdb /usr/sbin/apache2 core
> GNU gdb (GDB) 7.4.1-debian
> Copyright (C) 2012 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later <
> http://gnu.org/licenses/gpl.html>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law. Type "show copying"
> and "show warranty" for details.
> This GDB was configured as "x86_64-linux-gnu".
> For bug reporting instructions, please see:
> <http://www.gnu.org/software/gdb/bugs/>...
> Reading symbols from /usr/sbin/apache2...Reading symbols from
> /usr/lib/debug/usr/sbin/apache2-mpm-prefork...done.
> done.
> [New LWP 23033]
>
> warning: Can't read pathname for load map: Input/output error.
>
> warning:
> "/usr/lib/debug/.build-id/84/bee3ec119629745f1abb696a297d23ef52d3ba.debug":
> separate debug info file has no debug info
> [Thread debugging using libthread_db enabled]
> Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
>
> warning: the debug information found in
> "/usr/lib/debug//usr/lib/php5/20100525/mysql.so" does not match
> "/usr/lib/php5/20100525/mysql.so" (CRC mismatch).
>
>
> warning: the debug information found in
> "/usr/lib/debug/usr/lib/php5/20100525/mysql.so" does not match
> "/usr/lib/php5/20100525/mysql.so" (CRC mismatch).
>
>
> warning: the debug information found in
> "/usr/lib/debug//usr/lib/php5/20100525/mysqli.so" does not match
> "/usr/lib/php5/20100525/mysqli.so" (CRC mismatch).
>
>
> warning: the debug information found in
> "/usr/lib/debug/usr/lib/php5/20100525/mysqli.so" does not match
> "/usr/lib/php5/20100525/mysqli.so" (CRC mismatch).
>
>
> warning: the debug information found in
> "/usr/lib/debug//usr/lib/php5/20100525/pdo_mysql.so" does not match
> "/usr/lib/php5/20100525/pdo_mysql.so" (CRC mismatch).
>
>
> warning: the debug information found in
> "/usr/lib/debug/usr/lib/php5/20100525/pdo_mysql.so" does not match
> "/usr/lib/php5/20100525/pdo_mysql.so" (CRC mismatch).
>
> Core was generated by `/usr/sbin/apache2 -k start'.
> Program terminated with signal 7, Bus error.
> #0 0x00007f74d7778300 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
> (gdb) bt
> #0 0x00007f74d7778300 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
> #1 0x00007f74d40d7658 in memcpy (__len=16384, __src=0x7f74d2066000,
> __dest=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/string3.h:52
> #2 do_ssl3_write (s=s@entry=0x7f74da39a5f0, type=type@entry=23,
> buf=buf@entry=0x7f74d2066000 <Address 0x7f74d2066000 out of bounds>,
> len=16384,
> create_empty_fragment=create_empty_fragment@entry=0) at s3_pkt.c:798
> #3 0x00007f74d40d77c3 in ssl3_write_bytes (s=0x7f74da39a5f0, type=23,
> buf_=0x7f74d2066000, len=<optimized out>) at s3_pkt.c:609
> #4 0x00007f74d0ba3f1d in ssl_filter_write (len=40766, data=<optimized
> out>, f=<optimized out>) at ssl_engine_io.c:801
> #5 ssl_io_filter_output (f=0x7f74d59bcbd0, bb=0x7f74d2079bd8) at
> ssl_engine_io.c:1519
> #6 0x00007f74d850bc7e in ap_http_header_filter (f=0x7f74d20825b8,
> b=0x7f74d2079bd8) at http_filters.c:1327
> #7 0x00007f74d84ebc00 in ap_content_length_filter (f=0x7f74d2082590,
> b=0x7f74d2079bd8) at protocol.c:1371
> #8 0x00007f74d850cf6f in ap_byterange_filter (f=0x7f74d2082568,
> bb=0x7f74d2079bd8) at byterange_filter.c:262
> #9 0x00007f74d84eefeb in default_handler (r=0x7f74d20810a0) at core.c:3815
> #10 0x00007f74d84f9b50 in ap_run_handler (r=0x7f74d20810a0) at config.c:159
> #11 0x00007f74d84f9f9b in ap_invoke_handler (r=r@entry=0x7f74d20810a0) at
> config.c:377
> #12 0x00007f74d850a078 in ap_process_request (r=r@entry=0x7f74d20810a0)
> at http_request.c:282
> #13 0x00007f74d8506f38 in ap_process_http_connection (c=0x7f74d59bc290) at
> http_core.c:190
> #14 0x00007f74d8500510 in ap_run_process_connection (c=0x7f74d59bc290) at
> connection.c:43
> #15 0x00007f74d85008f8 in ap_process_connection (c=c@entry=0x7f74d59bc290,
> csd=<optimized out>) at connection.c:190
> #16 0x00007f74d850ec2e in child_main (child_num_arg=child_num_arg@entry=13)
> at prefork.c:667
> #17 0x00007f74d850f382 in make_child (slot=13, s=0x7f74d849a818) at
> prefork.c:768
> #18 make_child (s=0x7f74d849a818, slot=13) at prefork.c:696
> #19 0x00007f74d850fee6 in perform_idle_server_maintenance (p=<optimized
> out>) at prefork.c:903
> #20 ap_mpm_run (_pconf=_pconf@entry=0x7f74d84a0028, plog=<optimized out>,
> s=s@entry=0x7f74d849a818) at prefork.c:1107
> #21 0x00007f74d84e4826 in main (argc=3, argv=0x7fff19de3128) at main.c:755
>
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