linux-kernel - Re: unable to handle kernel paging request when inserting FAT32 formatted flash media

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Date:	Mon, 09 May 2011 11:56:01 +0930
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>,
	linux-kernel@...r.kernel.org
Subject: Re: unable to handle kernel paging request when inserting FAT32 formatted flash media

On Tue, 03 May 2011 11:34:11 +0900, OGAWA Hirofumi <hirofumi@...l.parknet.co.jp> wrote:
> > Hm. It seems to be 0x80 was gone somehow. If I added 0x80 at 0x8661, it
> > seems to be sane code.
> >
> >   20:	74 51                	je     73 <a+0x73>
> >   22:	49 c7 c6 d8 91 13 a0 	mov    $0xffffffffa01391d8,%r14
> >   29:	b2 b6                	mov    $0xb6,%dl
> >   2b:	80 3d fc 9b 00 00 00 	cmpb   $0x0,0x9bfc(%rip) <- here is 0x8661
> >   32:	74 3f                	je     73 <a+0x73>
> >   34:	49 8d 44 24 08       	lea    0x8(%r12),%rax
> 
> Code: fd ff ff 0f 1f 80 00 00 00 00 83 ca 01 89 93 10 02 00 00 ba ff
> 01 00 00 41 f6 85 96 00 00 00 02 74 51 49 c7 c6 d8 91 13 a0 b2 b6 3d
> fc 9b 00 00 00 74 3f 49 8d 44 24 08 48 89 44 24 08 eb 18 

How strange, but if this can't be reproduced with a rebuilt kernel I'm
tempted to put it down to corruption in the module somehow...

Thanks,
Rusty.
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