Re: [PATCH 4/6] generic/765: Ignore mkfs warning

On Fri, Apr 10, 2026 at 09:54:35AM -0700, Darrick J. Wong wrote:
> On Fri, Apr 10, 2026 at 12:06:04PM +0530, Ojaswin Mujoo wrote:
> > This test validates atomic writes for all possible block sizes. In ext4, for
> > smaller block sizes with configurations like:
> > 
> > export MKFS_OPTIONS="-O bigalloc,quota -b 65536 -C 131072"
> > 
> > The output can get corrupted with warnings like below because clustersize
> > more than 16xbs is experimental:
> > 
> > + 16 times the block size is considered experimental
> > 
> > Hence pipe these to seqres.full to avoid false negatives.
> > 
> > Reported-by: Disha Goel <[email protected]>
> > Signed-off-by: Ojaswin Mujoo <[email protected]>
> 
> Seems fine, though I think I'd rather mke2fs get patched to fix this.
> 
> I'd let the maintainer decide if he wants this, but ... I'm not sure if
> he's actually going to receive this message. :/

Hi Darrick, yes I'm preparing a quick patch for this. We might still
need this so people on older distro who wont have the e2fsprogs fix dont
see the failure.

Regards,
ojaswin

> 
> --D
> 
> > ---
> >  tests/generic/765 | 3 ++-
> >  1 file changed, 2 insertions(+), 1 deletion(-)
> > 
> > diff --git a/tests/generic/765 b/tests/generic/765
> > index 09be53db..b7cc70f1 100755
> > --- a/tests/generic/765
> > +++ b/tests/generic/765
> > @@ -64,7 +64,8 @@ test_atomic_writes()
> >      local bsize=$1
> >  
> >      get_mkfs_opts $bsize
> > -    _scratch_mkfs $mkfs_opts >> $seqres.full
> > +    _scratch_mkfs $mkfs_opts &>> $seqres.full || \
> > +        echo "mkfs $mkfs_opts failed"
> >      _scratch_mount
> >  
> >      test "$FSTYP" = "xfs" && _xfs_force_bdev data $SCRATCH_MNT
> > -- 
> > 2.53.0
> > 
> >