From: Ingo Molnar <mingo@elte.hu>
To: Michal Hocko <mhocko@suse.cz>
Cc: LKML <linux-kernel@vger.kernel.org>,
Nick Piggin <nickpiggin@yahoo.com.au>,
Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: Re: WARNING: at kernel/sched.c:4440 sub_preempt_count+0x81/0x95()
Date: Tue, 13 Jan 2009 13:34:25 +0100 [thread overview]
Message-ID: <20090113123425.GB29926@elte.hu> (raw)
In-Reply-To: <20090113122455.GA24824@dhcp35.suse.cz>
* Michal Hocko <mhocko@suse.cz> wrote:
> Hi,
> I am not sure whether someone has already reported this, but
> I can see the following early boot WARNING with the 2.6.29-rc1 kernel in
> the serial console output:
>
> ------------[ cut here ]------------
> WARNING: at kernel/sched.c:4440 sub_preempt_count+0x81/0x95()
That one should be fixed in tip/master and it is in the to-Linus queue of
fixes:
http://people.redhat.com/mingo/tip.git/README
it's this commit:
01e3eb8: Revert "sched: improve preempt debugging"
if you want to cherry-pick the fix.
Ingo
next prev parent reply other threads:[~2009-01-13 12:34 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-13 12:24 WARNING: at kernel/sched.c:4440 sub_preempt_count+0x81/0x95() Michal Hocko
2009-01-13 12:34 ` Ingo Molnar [this message]
2009-01-13 13:21 ` Michal Hocko
2009-01-15 6:54 ` Nick Piggin
2009-01-15 10:00 ` Ingo Molnar
2009-01-15 10:53 ` Nick Piggin
2009-01-15 11:26 ` Ingo Molnar
2009-01-15 11:44 ` Nick Piggin
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=20090113123425.GB29926@elte.hu \
--to=mingo@elte.hu \
--cc=a.p.zijlstra@chello.nl \
--cc=linux-kernel@vger.kernel.org \
--cc=mhocko@suse.cz \
--cc=nickpiggin@yahoo.com.au \
/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