From: Jan Kara <jack@suse.cz>
To: Meelis Roos <mroos@linux.ee>
Cc: Jan Kara <jack@suse.cz>, "Theodore Y. Ts'o" <tytso@mit.edu>,
linux-alpha@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>,
linux-block@vger.kernel.org, linux-mm@kvack.org
Subject: Re: ext4 corruption on alpha with 4.20.0-09062-gd8372ba8ce28
Date: Tue, 19 Feb 2019 14:20:26 +0100 [thread overview]
Message-ID: <20190219132026.GA28293@quack2.suse.cz> (raw)
In-Reply-To: <4e015688-8633-d1a0-308b-ba2a78600544@linux.ee>
On Tue 19-02-19 14:17:09, Meelis Roos wrote:
> > > > > The result of the bisection is
> > > > > [88dbcbb3a4847f5e6dfeae952d3105497700c128] blkdev: avoid migration stalls for blkdev pages
> > > > >
> > > > > Is that result relevant for the problem or should I continue bisecting between 4.20.0 and the so far first bad commit?
> > > >
> > > > Can you try reverting the commit and see if it makes the problem go away?
> > >
> > > Tried reverting it on top of 5.0.0-rc6-00153-g5ded5871030e and it seems
> > > to make the kernel work - emerge --sync succeeded.
> There is more to it.
>
> After running 5.0.0-rc6-00153-g5ded5871030e-dirty (with the revert of
> that patch) successfully for Gentoo update, I upgraded the kernel to
> 5.0.0-rc7-00011-gb5372fe5dc84-dirty (todays git + revert of this patch)
> and it broke on rsync again:
>
> RepoStorageException: command exited with status -6: rsync -a --link-dest /usr/portage --exclude=/distfiles --exclude=/local --exclude=/lost+found --exclude=/packages --exclude /.tmp-unverified-download-quarantine /usr/portage/ /usr/portage/.tmp-unverified-download-quarantine/
>
> Nothing in dmesg.
>
> This means the real root reason is somewhere deeper and reverting this
> commit just made it less likely to happen.
Thanks for information. Yeah, that makes somewhat more sense. Can you ever
see the failure if you disable CONFIG_TRANSPARENT_HUGEPAGE? Because your
findings still seem to indicate that there' some problem with page
migration and Alpha (added MM list to CC).
Honza
--
Jan Kara <jack@suse.com>
SUSE Labs, CR
next prev parent reply other threads:[~2019-02-19 13:20 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <fb63a4d0-d124-21c8-7395-90b34b57c85a@linux.ee>
2019-02-10 20:27 ` ext4 corruption on alpha with 4.20.0-09062-gd8372ba8ce28 Meelis Roos
2019-02-15 16:59 ` Meelis Roos
2019-02-16 17:45 ` Theodore Y. Ts'o
2019-02-16 22:29 ` Meelis Roos
2019-02-18 12:02 ` Jan Kara
2019-02-18 12:37 ` Meelis Roos
2019-02-19 12:17 ` Meelis Roos
2019-02-19 13:20 ` Jan Kara [this message]
2019-02-19 13:49 ` Meelis Roos
2019-02-19 14:44 ` Matthew Wilcox
2019-02-20 6:31 ` Meelis Roos
2019-02-20 9:48 ` Jan Kara
2019-02-20 23:23 ` Meelis Roos
2019-02-21 13:29 ` Jan Kara
2022-08-25 15:05 ` matoro
2022-08-26 10:55 ` Jan Kara
2022-08-26 11:04 ` Vlastimil Babka
2022-08-26 16:16 ` matoro
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