linux-kernel - Re: PROBLEM: 2.6.19 + highmem = BUG at do_wp

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Date:	Tue, 12 Dec 2006 15:10:56 -0500
From:	Chuck Ebbert <76306.1226@...puserve.com>
To:	Sami Farin <7atbggg02@...akemail.com>
Cc:	linux-kernel@...r.kernel.org, Andrew Morton <akpm@...l.org>
Subject: Re: PROBLEM: 2.6.19 + highmem = BUG at do_wp_page

In-Reply-To: <20061205172512.GA5518@...afari.iki.fi>

On Tue, 5 Dec 2006 19:25:13 +0200, Sami Farin wrote:

> BUG: unable to handle kernel paging request at virtual address fffb9dc0

> eax: fffb8000   ebx: fffb9000   ecx: 00000090   edx: 00000000
> esi: fffb9dc0   edi: fffb8dc0   ebp: f6f89f24   esp: f6f89ef0

  1f:   89 de                     mov    %ebx,%esi
  21:   b9 00 04 00 00            mov    $0x400,%ecx
  26:   89 45 cc                  mov    %eax,0xffffffcc(%ebp)
  29:   89 c7                     mov    %eax,%edi

   0:   f3 a5                     repz movsl %ds:(%esi),%es:(%edi)   <=====

Processor started to copy a page, then with 576 bytes left to copy
the source page got unmapped.  Nice.

This possibly happened during a device interrupt. What does
/proc/interrupts say?

-- 
MBTI: IXTP

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