processbuilder - Segmentation violation on symfony 2.6.6 process component -

when try run command on sub-process created processbuilder, segmentation violation.

[symfony\component\process\exception\runtimeexception]   process has been signaled signal "11".          

but doesn't happen upto v2.5.12 v2.6.0

finally issue found. rackspace support staff cristian banciu , mike bostic

cause:

latest newrelic php agent 4.23.1.107 causes seg fault when used symfony 2.6.0 or above process component. newrelic.browser_monitoring.auto_instrument = 0 didn't help

solution:

finally downgraded newrelic php agent 4.21.0.97-1 , work fine

anojan