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From: Hyeonggon Yoo <42.hyeyoo@gmail.com>
To: SeongJae Park <sj@kernel.org>
Cc: linux-mm@kvack.org, akpm@linux-foundation.org, damon@lists.linux.dev
Subject: Re: DAMON KUNIT test failure in latest mm-everything
Date: Mon, 3 Oct 2022 15:37:18 +0900	[thread overview]
Message-ID: <YzqDHs56va/NgHFy@hyeyoo> (raw)
In-Reply-To: <20221002193656.8300-1-sj@kernel.org>

On Sun, Oct 02, 2022 at 07:36:56PM +0000, SeongJae Park wrote:
> Hi Hyeonggon,
> 
> On Sun, 2 Oct 2022 16:24:29 +0900 Hyeonggon Yoo <42.hyeyoo@gmail.com> wrote:
> 
> > On Sun, Oct 02, 2022 at 01:24:23PM +0900, Hyeonggon Yoo wrote:
> > > Hi guys, yesterday I just built and booted latest mm-everything,
> > > and I got following report from KUNIT test.
> > > 
> > > Environment:
> > > - x86_64, gcc 11.2.0
> > > - mm-everything (tag: mm-everything-2022-10-01-01-55)
> > > - config attached
> > > 
> > > Report (stacktrace decoded):
> > 
> > FYI, below is the bad commit from git bisection ;)
> > 
> > Thanks!
> > 
> > 065530b966a42d63f214ba40427dc8d00345f573 is the first bad commit
> > commit 065530b966a42d63f214ba40427dc8d00345f573
> > Author: SeongJae Park <sj@kernel.org>
> > Date:   Fri Sep 9 20:28:57 2022 +0000
> > 
> > mm/damon/core-test: test damon_set_regions
> > 
> > Preceding commit fixes a bug in 'damon_set_regions()', which allows holes
> > in the new monitoring target ranges.  This commit adds a kunit test case
> > for the problem to avoid any regression.
> 
> Thank you so much for this kind report!  I just sent a patch[1] for this.  It
> should fix this issue.

You're welcome! Thank you for quickly fixing this.

> BTW, please note that the real issue was there even
> before the kunit commit, but the kunit commit was the first commit that
> triggers the issue.

Yeah, makes sense.
Hmm.. Do you think it would be worth to backport to -stable?

> [1] https://lore.kernel.org/damon/20221002193130.8227-1-sj@kernel.org/
> 
-- 
Thanks,
Hyeonggon


  reply	other threads:[~2022-10-03  6:37 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-02  4:24 Hyeonggon Yoo
2022-10-02  7:24 ` Hyeonggon Yoo
2022-10-02 19:36   ` SeongJae Park
2022-10-03  6:37     ` Hyeonggon Yoo [this message]
2022-10-03 16:48       ` SeongJae Park

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