I got tons of these inside dmesg:
traps: php-fpm[21307] general protection ip:5e8bc2 sp:7fff7865e928 error:0 in php-fpm[400000+34c000]
php-fpm[24135]: segfault at 1000721 ip 00000000005e9407 sp 00007fff7865daa0 error 4 in php-fpm[400000+34c000]
php-fpm[31801]: segfault at 7fff77e61f40 ip 0000000000583caa sp 00007fff77e61f10 error 6 in php-fpm[400000+34c000]
php-fpm[32636]: segfault at 7fff77e61f40 ip 0000000000583caa sp 00007fff77e61f10 error 6 in php-fpm[400000+34c000]
php-fpm[4245]: segfault at 7f0000000020 ip 00000000005e9407 sp 00007fff7865daa0 error 4 in php-fpm[400000+34c000]
php-fpm[14842]: segfault at 7fff77e61f40 ip 0000000000583caa sp 00007fff77e61f10 error 6 in php-fpm[400000+34c000]
php-fpm[21132]: segfault at 1000721 ip 00000000005e9407 sp 00007fff7865daa0 error 4 in php-fpm[400000+34c000]
php-fpm[6201]: segfault at 7f0000000020 ip 00000000005e9407 sp 00007fff7865daa0 error 4 in php-fpm[400000+34c000]
php-fpm[18475]: segfault at 7fff77e61f40 ip 0000000000583caa sp 00007fff77e61f10 error 6 in php-fpm[400000+34c000]
php-fpm[22856]: segfault at 7fff77e61f40 ip 0000000000583caa sp 00007fff77e61f10 error 6 in php-fpm[400000+34c000]
php-fpm[14492]: segfault at 7fff77e61f40 ip 0000000000583caa sp 00007fff77e61f10 error 6 in php-fpm[400000+34c000]
php-fpm[979]: segfault at 7fff77e61f40 ip 0000000000583caa sp 00007fff77e61f10 error 6 in php-fpm[400000+34c000]
php-fpm[4999]: segfault at 7fff77e61f40 ip 0000000000583caa sp 00007fff77e61f10 error 6 in php-fpm[400000+34c000]
php-fpm[15680]: segfault at 7fff77e61f40 ip 0000000000583caa sp 00007fff77e61f10 error 6 in php-fpm[400000+34c000]
My config:
A. Kloxo-MR: 6.5.0.f-2013031828
B. OS: CentOS release 6.4 (Final) x86_64
C. Apps:
1. MySQL: MariaDB-server-10.0.3-1.x86_64
2. PHP: php-5.4.17-23.el6.art.x86_64
3. Httpd: httpd-2.2.25-1.el6.x86_64
4. Lighttpd: --uninstalled--
5. Nginx: nginx-1.5.2-1.el6.x86_64
6. Qmail: qmail-toaster-1.03-1.3.27.mr.el6.x86_64
- with: courier-imap-toaster-4.1.2-1.3.14.mr.el6.x86_64
7. Dns: djbdns-1.05-17.3.mr.el6.x86_64
D. Php-type (for Httpd/proxy): php-fpm_event
E. Memory:
total used free shared buffers cached
Mem: 32198 31543 655 0 406 9373
-/+ buffers/cache: 21762 10436
Swap: 2047 1761 286