linux-kernel - RE: kernel panic when reboot

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Message-ID: <5B8DA87D05A7694D9FA63FD143655C1B01EA74E4@HASMSX106.ger.corp.intel.com>
Date:	Fri, 14 Dec 2012 19:58:06 +0000
From:	"Winkler, Tomas" <tomas.winkler@...el.com>
To:	"gaowanlong@...fujitsu.com" <gaowanlong@...fujitsu.com>,
	Borislav Petkov <bp@...en8.de>,
	LKML <linux-kernel@...r.kernel.org>,
	"wim@...ana.be" <wim@...ana.be>,
	Jerry Snitselaar <dev@...tselaar.org>
Subject: RE: kernel panic when reboot

> 
> On 12/14/2012 07:02 PM, Borislav Petkov wrote:
> > On Fri, Dec 14, 2012 at 05:29:09PM +0800, Wanlong Gao wrote:
> >> Hi,
> >>
> >> I hit the kernel panic when reboot the system today, just system reboot
> can cause kernel panic.
> >>
> >> $ git describe
> >> v3.7-7784-g7313264
> >>
> >> The config file is attached.
> >> And the crash screen is uploaded here
> >> http://www.tiikoni.com/tis/view/?id=e187047
> >
> > AFAICT, it looks like list corruption in the mutex_lock path when
> > trying to grab the watchdog->lock, when we're coming down from
> > mei_watchdog_unregister().
> >
> > Is it reproducible?
> 
> It's panicked every time I reboot the system.
> 
Thanks for the report. The issue was introduced by commit: c7d3df3 as found by Jerry
The bug fix is on the way.
Thanks
Tomas