Summary:	ASTERISK-25355: sched: ast_sched_del may return prematurely due to spurious wakeup
Reporter:	Joshua C. Colp (jcolp)	Labels:
Date Opened:	2015-08-28 19:57:48	Date Closed:	2015-08-29 07:56:20
Priority:	Minor	Regression?	No
Status:	Closed/Complete	Components:	Core/General
Versions:		Frequency of Occurrence
Related Issues:	causes ASTERISK-25023 Deadlock in chan_sip in update_provisional_keepalive
Environment:		Attachments:
Description:	When deleting a scheduled item if the item in question is currently executing the ast_sched_del function waits until it has completed. This is accomplished using ast_cond_wait. Unfortunately the ast_cond_wait function can suffer from spurious wakeups so the predicate needs to be checked after it returns to make sure it has really woken up as a result of being signaled.
Comments: