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https://issues.apache.org/jira/browse/TS-4890?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15516726#comment-15516726
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James Peach commented on TS-4890:
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[~masahara] What is the issue here? I could be convinced that we ought to have
a memory barrier after writing to {{shutdown_event_system}}, but really the
whole mechanism seems pretty fragile.
> 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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