linux-kernel - Re: BUG: unable to handle kernel paging request at virtual address

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Message-ID: <200608010412_MC3-1-C6B2-617C@compuserve.com>
Date:	Tue, 1 Aug 2006 04:09:48 -0400
From:	Chuck Ebbert <76306.1226@...puserve.com>
To:	Stephen Lynch <Stephen_Lynch@...ketmail.com>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: BUG: unable to handle kernel paging request at virtual
  address

In-Reply-To: <20060731144810.91843.qmail@...57012.mail.re3.yahoo.com>

On Mon, 31 Jul 2006 07:48:10 -0700 (PDT), Stephen Lynch wrote:

> BUG: unable to handle kernel paging request at virtual address 00080000

Probably a single-bit error, as someone suggested:

  24:   8b 48 28                  mov    0x28(%eax),%ecx
  27:   85 c9                     test   %ecx,%ecx
  29:   74 62                     je     8d <_EIP+0x8d>
   0:   8b 31                     mov    (%ecx),%esi   <=====

It tests for zero and jumps around the failing instruction if that's
true.

-- 
Chuck

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