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Re: kern/52769

On Sun, 4 Mar 2018, David Holland wrote:

The following reply was made to PR kern/52769; it has been noted by GNATS.

From: David Holland <>
Subject: Re: kern/52769
Date: Sun, 4 Mar 2018 08:40:01 +0000

On Thu, Mar 01, 2018 at 08:25:01AM +0000, Paul Goyette wrote:
 >  It's curious that all reported instances of this PR have involved
 >  a "cvs update" getting stuck in biolock, while everything else just
 >  ends up in tstile.  I wonder what cvs does that is so different
 >  from everything else?

tstile is, most of the time, just what happens when things pile up
behind other more interesting deadlocks. Though not always.

cvs is probably causing it, because cvs does tons of silly metadata
operations at high speed.

Is this wapbl, or not? If not, they'll be synchronous and that might
be causing extra excitement.

In my case YES, this is wapbl.  Not sure about Martin's original case.

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