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

OGAWA Hirofumi
2011-05-09T03:13:24Z

Rusty Russell <rusty@rustcorp.com.au> writes:

> On Tue, 03 May 2011 11:34:11 +0900, OGAWA Hirofumi
> <hirofumi@mail.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...

I just bridged the bug report, so not pretty sure though. It sounds like
to be fixed by rebuilding kernel.