From: John Garry <john.g.garry@oracle.com>
To: Jan Kara <jack@suse.cz>
Cc: linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk,
brauner@kernel.org, linux-fsdevel@vger.kernel.org
Subject: Re: v6.12-rc workqueue lockups
Date: Thu, 24 Oct 2024 10:35:29 +0100 [thread overview]
Message-ID: <df9db1ce-17d9-49f1-ab6d-7ed9a4f1f9c0@oracle.com> (raw)
In-Reply-To: <20241023203951.unvxg2claww4s2x5@quack3>
On 23/10/2024 21:39, Jan Kara wrote:
> On Wed 23-10-24 11:19:24, John Garry wrote:
>> Hi All,
>>
>> I have been seeing lockups reliably occur on v6.12-rc1, 3, 4 and linus'
>> master branch:
>>
>> Message from syslogd@jgarry-atomic-write-exp-e4-8-instance-20231214-1221 at
>> Oct 22 09:07:15 ...
>> kernel:watchdog: BUG: soft lockup - CPU#12 stuck for 26s! [khugepaged:154]
>
> BTW, can you please share logs which would contain full stacktraces that
> this softlockup reports produce? The attached dmesg is just from fresh
> boot... Thanks!
>
thanks for getting back to me.
So I think that enabling /proc/sys/kernel/softlockup_all_cpu_backtrace
is required there. Unfortunately my VM often just locks up without any
sign of life.
But I'll continue to try. And I'll also try reverting that commit you
mentioned.
Cheers,
John
next prev parent reply other threads:[~2024-10-24 9:35 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-23 10:19 John Garry
2024-10-23 20:13 ` Jan Kara
2024-10-24 3:18 ` Dave Chinner
2024-10-23 20:39 ` Jan Kara
2024-10-24 9:35 ` John Garry [this message]
2024-10-24 21:13 ` Dave Chinner
2024-10-24 22:23 ` John Garry
2024-10-28 5:35 ` Dave Chinner
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=df9db1ce-17d9-49f1-ab6d-7ed9a4f1f9c0@oracle.com \
--to=john.g.garry@oracle.com \
--cc=brauner@kernel.org \
--cc=jack@suse.cz \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=viro@zeniv.linux.org.uk \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®