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Date: Thu, 25 Sep 2008 23:27:55 +0400
From: Cyrill Gorcunov <gorcunov@gmail.com>
To: Tej <bewith.tej@gmail.com>
Cc: Jason Wessel <jason.wessel@windriver.com>, linux-kernel@vger.kernel.org
Subject: Re: Kernel PANIC with 2.6.27-rc6
Message-ID: <20080925192755.GE7259@localhost>
References: <f1c9d250809110841s5c3d08b9ha93f0ef1da58642a@mail.gmail.com> <48C94F65.3050405@windriver.com> <f1c9d250809250735i4b98201ft753d6ec2959097e6@mail.gmail.com> <20080925145635.GA7277@localhost> <20080925154724.GB7277@localhost> <f1c9d250809251134j6fac8bfu43f08cbf2b330f0a@mail.gmail.com>
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[Tej - Fri, Sep 26, 2008 at 12:04:30AM +0530]
...
| >
| > If assume that git bisect is right - it's hardly possible
| 
| i have bisected it twice n jason mentioned that it looks like some
| kind of nmi race condition.
| 
| but i will bisect it again in rc7 and let you know.
| 
| > that proc_nmi_enabled() related changes introduced this
| > error (ie this commit) - kgdb seems to be not
| > touching /proc/sys/kernel/nmi while doing self-tests.
| >
| > 		- Cyrill -
| >
| 

There was a race in nmi code indeed which was fixed recently in
-tip tree but it was leading to use unitialized vars. So give
me some time to digg a bit. I'll do it tomorrow and write you.
Thanks a lot for pointing out this problem!

		- Cyrill -