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Date: Wed, 5 Aug 2020 20:24:54 +0200
From: Peter Holm <pho@freebsd.org>
To: Mark Johnston <markj@freebsd.org>
Cc: Mateusz Guzik <mjg@freebsd.org>, src-committers@freebsd.org,
 svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject: Re: svn commit: r363875 - head/sys/ufs/ffs
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On Wed, Aug 05, 2020 at 11:15:53AM -0400, Mark Johnston wrote:
> On Tue, Aug 04, 2020 at 11:09:16PM +0000, Mateusz Guzik wrote:
> > Author: mjg
> > Date: Tue Aug  4 23:09:15 2020
> > New Revision: 363875
> > URL: https://svnweb.freebsd.org/changeset/base/363875
> > 
> > Log:
> >   ufs: only pass LK_ADAPTIVE if LK_NODDLKTREAT is set
> >   
> >   This restores the pre-adaptive spinning state for SU which livelocks
> >   otherwise. Note this is a bug in SU.
> >   
> >   Reported by:	pho
> 
> What is the bug?

https://people.freebsd.org/~pho/stress/log/mjguzik037.txt

- Peter
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