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https://issues.apache.org/jira/browse/TS-4890?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15515929#comment-15515929
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Masato Gosui edited comment on TS-4890 at 9/23/16 9:40 AM:
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As we cannot use pthread_mutex_unlock() in signal handler, the most reasonable
solution might be to change the type of shutdown_event_system to "volatile
sig_atomic_t".
We need to make the variable both thread-safe and signal-safe.
was (Author: mgosui):
As we cannot use pthread_mutex_unlock in signal handler, the most reasonable
solution might be to change the type of shutdown_event_system to "volatile
sig_atomic_t".
> shutdown_event_system doesn't have lock even though referenced by multiple
> threads
> ----------------------------------------------------------------------------------
>
> Key: TS-4890
> URL: https://issues.apache.org/jira/browse/TS-4890
> Project: Traffic Server
> Issue Type: Bug
> Components: Core
> Reporter: Masato Gosui
>
> Global variable shutdown_event_system (declared in
> iocore/eventsystem/UnixEThread.cc) doesn't have lock even though the variable
> can be referenced by multiple threads (e.g. threads executing
> Thread::execute()).
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