linux-kernel - Re: [BUG] Linux 2.6.20.2 - unable to handle kernel paging request

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Message-ID: <84144f020703160325h6e12069fl788cdb44114f817f@mail.gmail.com>
Date:	Fri, 16 Mar 2007 12:25:45 +0200
From:	"Pekka Enberg" <penberg@...helsinki.fi>
To:	"Chris Rankin" <rankincj@...oo.com>
Cc:	"Greg KH" <gregkh@...e.de>, linux-kernel@...r.kernel.org
Subject: Re: [BUG] Linux 2.6.20.2 - unable to handle kernel paging request - still accessing freed memory

Hi Chris,

On 3/16/07, Chris Rankin <rankincj@...oo.com> wrote:
> That would take ages - the only reason I kept on plugging away with winecfg last night
> was because I was fairly certain the kernel was going to "oops" eventually (which it did).
> But when exactly would I be able to declare a kernel "good" during a "git bisect"?

Yeah, if you can't reproduce at will, git bisect is very impractical.
Please try out the following patch to see if we catch a reference
counting underflow:

ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.20/2.6.20-mm2/broken-out/detect-atomic-counter-underflows.patch
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