Re: [BUG] log I/O completion GPF via xfs/006 and xfs/264 on 5.17.0-rc8

["Darrick J. Wong" <djwong@kernel.org>]

On Sat, Mar 19, 2022 at 08:48:31AM +1100, Dave Chinner wrote:
> On Fri, Mar 18, 2022 at 09:46:53AM -0400, Brian Foster wrote:
> > Hi,
> > 
> > I'm not sure if this is known and/or fixed already, but it didn't look
> > familiar so here is a report. I hit a splat when testing Willy's
> > prospective folio bookmark change and it turns out it replicates on
> > Linus' current master (551acdc3c3d2). This initially reproduced on
> > xfs/264 (mkfs defaults) and I saw a soft lockup warning variant via
> > xfs/006, but when I attempted to reproduce the latter a second time I
> > hit what looks like the same problem as xfs/264. Both tests seem to
> > involve some form of error injection, so possibly the same underlying
> > problem. The GPF splat from xfs/264 is below.
> 
> On a side note, I'm wondering if we should add xfs/006 and xfs/264
> to the recoveryloop group - they do a shutdown under load and a
> followup mount to ensure the filesystem gets recovered before
> the test ends and the fs is checked, so while thy don't explicitly
> test recovery, they do exercise it....
> 
> Thoughts?

Someone else asked about this the other day, and I proposed a 'recovery'
group for tests that don't run in a loop.

--D

> 
> -Dave.
> -- 
> Dave Chinner
> david@fromorbit.com