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Date:      Fri, 12 Sep 2014 15:51:30 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-bugs@FreeBSD.org
Subject:   [Bug 192863] Data race caused by double increment of pq->pq_cnt
Message-ID:  <bug-192863-8-stbdly641G@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-192863-8@https.bugs.freebsd.org/bugzilla/>
References:  <bug-192863-8@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=192863

pfonseca@mpi-sws.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|Needs Triage                |Issue Resolved
         Resolution|---                         |Works As Intended

--- Comment #1 from pfonseca@mpi-sws.org ---
After some disussion with developers, the conclussion was that the data race is
benign:

"The pageout code does not care about exact queue length, it only takes
it as an advise to not over-scan the queue. The fact that read gets a
snapshot value which might be outdated immediately does not matter in
this situation. At worst, scan would fall off the end of queue, if it is
drained by other means in parallel."

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