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SubjectRe: [Linux-NTFS-Dev] Oops with corrupted NTFS image
On Mon, Jul 7, 2008 at 3:26 PM, Carl-Daniel Hailfinger
<c-d.hailfinger.devel.2006@gmx.net> wrote:
>> which is...
>>
>> vi->i_mtime = ntfs2utc(si->last_data_change_time);
>>
>> which is probably what is causing the NULL pointer dereference.
>>
>
> The problem of this theory is that there is no NULL pointer dereference,
> unless you meant "invalid memory access".

Oops, yeah. I skipped a line, but page fault nonetheless ;-)

The rest of the theory should still hold. The pointer being
dereferenced is held in %eax, which is c6798550. This fits with the
reported address:

[ 76.583958] BUG: unable to handle kernel paging request at c6798558
...
[ 76.584019] EAX: c6798550 EBX: 00000000 ECX: c678b000 EDX: c678b038

Thanks for the correction.


Vegard

--
"The animistic metaphor of the bug that maliciously sneaked in while
the programmer was not looking is intellectually dishonest as it
disguises that the error is the programmer's own creation."
-- E. W. Dijkstra, EWD1036


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