[asterisk-bugs] [JIRA] (ASTERISK-25355) sched: ast_sched_del may return prematurely due to spurious wakeup

[Joshua Colp (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-25355?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joshua Colp updated ASTERISK-25355:
-----------------------------------

    Reviewboard Link: https://gerrit.asterisk.org/1157 https://gerrit.asterisk.org/1158 https://gerrit.asterisk.org/1159

> sched: ast_sched_del may return prematurely due to spurious wakeup
> ------------------------------------------------------------------
>
>                 Key: ASTERISK-25355
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-25355
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Core/General
>            Reporter: Joshua Colp
>            Assignee: Joshua Colp
>            Severity: Minor
>
> 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.



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