linux-kernel - Re: v3.0: Weird kernel log message when resuming avout NMI received

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAC9WiBitmuvZOS74UY1E-=y+6hpm6_OgaR9E6wrHhdvARt2uJA@mail.gmail.com>
Date:	Mon, 15 Aug 2011 10:37:24 +0200
From:	Francis Moreau <francis.moro@...il.com>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc:	Cyrill Gorcunov <gorcunov@...il.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Don Zickus <dzickus@...hat.com>,
	Stephane Eranian <eranian@...gle.com>,
	Ingo Molnar <mingo@...e.hu>
Subject: Re: v3.0: Weird kernel log message when resuming avout NMI received

Hello Peter,

Sorry for the loooonnng delay but summer rest :)

On Mon, Aug 1, 2011 at 1:05 PM, Peter Zijlstra <a.p.zijlstra@...llo.nl> wrote:
> On Sun, 2011-07-31 at 19:32 +0400, Cyrill Gorcunov wrote:
>
>> > >> I'm seeing those kernel message when resuming:
>> > >>
>> > >> [  524.973283] Uhhuh. NMI received for unknown reason 3d on CPU 0.
>> > >> [  524.973288] Do you have a strange power saving mode enabled?
>> > >> [  524.973289] Dazed and confused, but trying to continue
>> > >>
>> > >> I don't know if it's important or not because the system seems to work
>> > >> after but maybe it worths to report
>
> So I guess the problem is the NMI watchdog and suspend stuff not
> shutting things down properly..
>
> Argh, the PM notifier muck runs before the hotplug notifiers and it
> doesn't avoid hotplug races on its own.. what crap.
>
> something like the below perhaps, compile tested only.. does it work?

Thanks for the fix, I'm going to give it a test and report in 2 days.

-- 
Francis
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/