AH00051: child pid XXXXX exit signal Segmentation fault (11), possible coredump in /etc/apache2
20,675
Check the value assigned for memory_limit in php.ini
Check also memory allocation suffix:
correct:
memory_limit = 128M
not correct:
memory_limit = 128
https://unix.stackexchange.com/a/199562
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Author by
Rahul K Jha
Updated on September 18, 2022Comments
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Rahul K Jha over 1 year
I have upgraded to mysql 5.7 using this MySQL 5.5 Update to MySQL 5.7
Since then we have been receiving 500 on all hosted websites and apache2 error log contains
[Thu Jul 07 03:52:24.807409 2016] [core:notice] [pid 1624] AH00051: child pid 11486 exit signal Segmentation fault (11), possible coredump in /etc/apache2 [Thu Jul 07 03:52:32.819761 2016] [core:notice] [pid 1624] AH00051: child pid 11482 exit signal Segmentation fault (11), possible coredump in /etc/apache2 [Thu Jul 07 03:52:32.819853 2016] [core:notice] [pid 1624] AH00051: child pid 11489 exit signal Segmentation fault (11), possible coredump in /etc/apache2 [Thu Jul 07 03:52:35.824422 2016] [core:notice] [pid 1624] AH00051: child pid 11490 exit signal Segmentation fault (11), possible coredump in /etc/apache2 [Thu Jul 07 03:52:42.833487 2016] [core:notice] [pid 1624] AH00051: child pid 11493 exit signal Segmentation fault (11), possible coredump in /etc/apache2 [Thu Jul 07 03:52:46.839680 2016] [core:notice] [pid 1624] AH00051: child pid 11494 exit signal Segmentation fault (11), possible coredump in /etc/apache2 [Thu Jul 07 03:52:52.847820 2016] [core:notice] [pid 1624] AH00051: child pid 11495 exit signal Segmentation fault (11), possible coredump in /etc/apache2 [Thu Jul 07 03:52:56.852889 2016] [core:notice] [pid 1624] AH00051: child pid 11498 exit signal Segmentation fault (11), possible coredump in /etc/apache2 [Thu Jul 07 03:53:06.864664 2016] [core:notice] [pid 1624] AH00051: child pid 11500 exit signal Segmentation fault (11), possible coredump in /etc/apache2 [Thu Jul 07 03:53:07.867806 2016] [core:notice] [pid 1624] AH00051: child pid 11504 exit signal Segmentation fault (11), possible coredump in /etc/apache2 [Thu Jul 07 03:53:35.899735 2016] [core:notice] [pid 1624] AH00051: child pid 11506 exit signal Segmentation fault (11), possible coredump in /etc/apache2 [Thu Jul 07 03:53:39.906559 2016] [core:notice] [pid 1624] AH00051: child pid 11509 exit signal Segmentation fault (11), possible coredump in /etc/apache2
Server configuration : Ubuntu 14.04 , Mysql :5.7 , PHP 5.5.9, Apache 2.4.7
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Rinzwind almost 8 years"possible coredump in /etc/apache2". Is there 1? Does it show anything? Also see sysadmin.carlusgg.com/?p=197 for hints. and bugs.launchpad.net/ubuntu/+source/apache2/+bug/1405173 and omh.cc/blog/2008/mar/6/… Just the error notice is not enough. Most likely it is PHP, not apache though.
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Rahul K Jha almost 8 yearsI have got something using gdb ref:sysadmin.carlusgg.com/?p=197
[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/php5/20121212/pdo_mysql.so" does not match "/usr/lib/php5/20121212/pdo_mysql.so" (CRC mismatch). Core was generated by
/usr/sbin/apache2 -k start'. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x00007f72d6da8117 in mysql_close_free_options () from /usr/lib/x86_64-linux-gnu/libmysqlclient.so.18 ` -
Rahul K Jha almost 8 yearsI guess the main problem is
Program terminated with signal SIGSEGV, Segmentation fault. #0 0x00007f72d6da8117 in mysql_close_free_options () from /usr/lib/x86_64-linux-gnu/libmysqlclient.so.18
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Wolfgang Fahl almost 6 yearsin my case i had to increase memory from 128M to 384M