Bug #68635 [Opn->Fbk]: SIGSEGV or SIGABRT in fpm_children_free

Edit report at https://bugs.php.net/bug.php?id=68635&edit=1 ID: 68635 Updated by: cmb@php.net Reported by: jeichorn@php.net Summary: SIGSEGV or SIGABRT in fpm_children_free -Status: Open +Status: Feedback Type: Bug Package: FPM related Operating System: Ubuntu 12.04 PHP Version: 5.5.20 -Assigned To: +Assigned To: cmb Block user comment: N Private report: N New Comment: Is this this an issue with any of the actively supported PHP versions[1]? [1] <https://www.php.net/supported-versions.php> Previous Comments: ------------------------------------------------------------------------ [2014-12-22 22:32:29] jeichorn@php.net Description: ------------ I am seeing random SIGSEGV and SIGABRT among a # of different fpm-pools in both 5.5.19 and 5.5.20. This behavior was not seen with 5.5.18. Test script: --------------- This is happening in 100s of different sites all running the wordpress 4.0.1 though with different plugins/themes. I haven't been able to detect the code causing the problem since it only shows up randomly under load. Actual result: -------------- #0 0x00007f5c129253c4 in ?? () from /lib/x86_64-linux-gnu/libc.so.6 (gdb) bt #0 0x00007f5c129253c4 in ?? () from /lib/x86_64-linux-gnu/libc.so.6 #1 0x0000000000791dfe in fpm_children_free (child=<optimized out>) at /build/buildd/php5-5.5.20+dfsg/sapi/fpm/fpm/fpm_children.c:170 #2 0x000000000079ffcd in fpm_worker_pool_cleanup (which=<optimized out>, arg=<optimized out>) at /build/buildd/php5-5.5.20+dfsg/sapi/fpm/fpm/fpm_worker_pool.c:43 #3 0x00000000007928e6 in fpm_cleanups_run (type=1) at /build/buildd/php5-5.5.20+dfsg/sapi/fpm/fpm/fpm_cleanup.c:45 #4 0x0000000000791d21 in fpm_run (max_requests=0x7ffff25cd1e8) at /build/buildd/php5-5.5.20+dfsg/sapi/fpm/fpm/fpm.c:117 #5 0x0000000000466408 in main (argc=6, argv=0x7ffff25cf358) at /build/buildd/php5-5.5.20+dfsg/sapi/fpm/fpm/fpm_main.c:1862 ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=68635&edit=1