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https://issues.apache.org/jira/browse/TS-4539?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15329909#comment-15329909
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Leif Hedstrom commented on TS-4539:
-----------------------------------
[~shinrich] Does this relate in any way to TS-4529 and TS-4478? And if so, is
this another back port candidate for 6.2.0 ?
> the mutex of server_vc is not set while server_session reuse.
> -------------------------------------------------------------
>
> Key: TS-4539
> URL: https://issues.apache.org/jira/browse/TS-4539
> Project: Traffic Server
> Issue Type: Bug
> Components: HTTP
> Reporter: Oknet Xu
>
> NetAccept got a client_vc and call new_ProxyMutex() to assign a mutex.
> And the HttpClientSession, HttpSM, HttpServerSession, server_vc also share
> the same mutex.
> The HttpServerSession and server_vc will put into ServerSessionPool and may
> assign to next new client_vc.
> The HttpSM::attach_server_session() only set the mutex of HttpServerSession
> to the mutex of HttpSM after get a HttpServerSession from ServerSessionPool.
> But it forget to set the mutex of server_vc to the mutex of HttpSM.
>
> {code}
> void
> HttpSM::attach_server_session(HttpServerSession *s)
> {
> hsm_release_assert(server_session == NULL);
> hsm_release_assert(server_entry == NULL);
> hsm_release_assert(s->state == HSS_ACTIVE);
> server_session = s;
> server_session->transact_count++;
> // Set the mutex so that we have something to update
> // stats with
> server_session->mutex = this->mutex;
> {code}
> But I can not found any issue, Is it by design?
> Or it is hard to locate the problem, due to my limited knowedge on HttpSM.
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