Re: [PATCH] xfs: test log recovery for extent frees right after growfs

[Brian Foster <bfoster@redhat.com>]

On Wed, Oct 09, 2024 at 10:04:51AM +0200, Christoph Hellwig wrote:
> On Tue, Oct 08, 2024 at 12:28:37PM -0400, Brian Foster wrote:
> > FWIW, here's a quick hack at such a test. This is essentially a copy of
> > xfs/104, tweaked to remove some of the output noise and whatnot, and
> > hacked in some bits from generic/388 to do a shutdown and mount cycle
> > per iteration.
> > 
> > I'm not sure if this reproduces your original problem, but this blows up
> > pretty quickly on 6.12.0-rc2. I see a stream of warnings that start like
> > this (buffer readahead path via log recovery):
> > 
> > [ 2807.764283] XFS (vdb2): xfs_buf_map_verify: daddr 0x3e803 out of range, EOFS 0x3e800
> > [ 2807.768094] ------------[ cut here ]------------
> > [ 2807.770629] WARNING: CPU: 0 PID: 28386 at fs/xfs/xfs_buf.c:553 xfs_buf_get_map+0x184e/0x2670 [xfs]
> > 
> > ... and then end up with an unrecoverable/unmountable fs. From the title
> > it sounds like this may be a different issue though.. hm?
> 
> That's at least the same initial message I hit.
> 
> 

Ok, so then what happened? :) Are there outstanding patches somewhere to
fix this problem? If so, I can give it a test with this.

I'm also trying to figure out if the stress level of this particular
test should be turned up a notch or three, but I can't really dig into
that until this initial variant is passing reliably.

Brian