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

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

On Mon, Apr 13, 2026 at 04:42:15PM -0400, Theodore Tso wrote:
> > > > > > 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.
> 
> You could also suppress the warnings using the -q option, for example:
> 
> mke2fs -Fq -t ext4 -O bigalloc,quota -b 4096 -C 131072 /tmp/foo.img 4G
> 
> > > Futher, mke2fs has multiple instances where we print warnings to stderr,
> > > should we go and fix all of them as well?
> > 
> > "stderr" meaning "standard error", I'd say that errors are anything that
> > prohibits the format from completing, and only errors should go there.
> 
> Sure, I'll accept those changes.  But adding -q will allow the test to
> pass using older versions of e2fsprogs, while still allowing stderr to
> go out the expected output.

Aha, maybe that's why I've never run into this when QA'ing fstests.

--D