linux-ext4 - Re: ext4 v6.15-rc2 baseline

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Message-ID: <20250416233415.GA3779528@mit.edu>
Date: Wed, 16 Apr 2025 18:34:15 -0500
From: "Theodore Ts'o" <tytso@....edu>
To: Luis Chamberlain <mcgrof@...nel.org>
Cc: adilger.kernel@...ger.ca, linux-ext4@...r.kernel.org,
        kdevops@...ts.linux.dev, dave@...olabs.net, jack@...e.cz
Subject: Re: ext4 v6.15-rc2 baseline

On Wed, Apr 16, 2025 at 10:56:17AM -0700, Luis Chamberlain wrote:
> ext4 developers,
> 
> kdevops has run fstests on v6.15-rc2 across the different ext4 profiles
> it currently defines, and the results are below.

Hmm, there are quite a lot of failures that aren't in my baseline.  In
particular, I work very hard to make sure the 4k profile is clean, and
as you can see in the attached file, it is.  But here's a short
summary (for the full set, including the versions used for the full
test run, see the attached file.)

ext4/4k: 587 tests, 55 skipped, 5340 seconds
ext4/1k: 581 tests, 59 skipped, 5700 seconds
ext4/ext3: 579 tests, 1 failures, 149 skipped, 4715 seconds
  Failures: ext4/028
ext4/encrypt: 562 tests, 175 skipped, 2982 seconds
ext4/nojournal: 579 tests, 127 skipped, 3955 seconds
   ...

I'll have to take a look at your test results tarball (I assume it
includes the NNN.out.bad and NNN.full files, right) to see what's
going on.

There are some exclude files[1][2] which I use to reduce noise, but
that doesn't seem to explain many of your failures that you have reported.

[1] https://github.com/tytso/xfstests-bld/blob/master/test-appliance/files/root/fs/global_exclude
[2] https://github.com/tytso/xfstests-bld/blob/master/test-appliance/files/root/fs/ext4/exclude

>  - Is this useful information?

Maybe; the question is why are your results so different from my results.

       	   	       	       	    	    - Ted

View attachment "ext4-baseline-6.15-rc2" of type "text/plain" (2102 bytes)