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https://issues.apache.org/jira/browse/TS-3603?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Phil Sorber updated TS-3603:
----------------------------
Fix Version/s: 6.0.0
5.3.1
> Debug Assert occurs in UnixNetVConnection::set_enabled when accept_threads
> are disabled
> ---------------------------------------------------------------------------------------
>
> Key: TS-3603
> URL: https://issues.apache.org/jira/browse/TS-3603
> Project: Traffic Server
> Issue Type: Bug
> Components: Network
> Reporter: Susan Hinrichs
> Assignee: Susan Hinrichs
> Fix For: 5.3.1, 6.0.0
>
> Attachments: TS-3603.diff
>
>
> This was found while tracking down TS-3597. The assert stack is in a comment
> on that bug.
> When you don't have a dedicated assert thread, the mutex is not locked before
> going into the do_io_read to process the accept event. In the dedicated
> thread case, you end up exercising UnixNetVConnection::acceptEvent which does
> grab the mutex.
> May be a relatively harmless error. Since this is a newly created VC, there
> should be no race conditions on it. But violating locking assumptions seem
> like a really bad idea. Especially since grabbing a lock on a supposedly
> uncontended object should be cheap.
> A 5.3.x patch is attached to this bug which solves the problem on my build.
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