PHP-FPM exited on signal 7 (SIGBUS) after?

Question

PHP

Periodically fall into the php-fpm logs such errors

WARNING: [pool www] child 31214 exited on signal 7 (SIGBUS) after ?

, Nginx+php-fpm bundle, what to pay attention to and what can be corrected in configs to avoid such errors?
pm.max_children 50 costs
pm.start_servers 35

Answer 1

apc.stat=0