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SubjectRe: 2.6.15-mm3 bisection: git-xfs.patch makes reiserfs oops
Thanks Nathan, Mattia, and Andrew.

vs, can you or Jeff look at whether our buffer head inits are
sufficiently hardened by next Monday (I know that vs has a lot of mail
to catch up to)? Jeff, if you have time before then, it would be nice
if you could handle it, I know hardening V3 is an interest of yours.

Thanks,

Hans

Nathan Scott wrote:

>On Sun, Jan 15, 2006 at 11:14:58PM +0100, Mattia Dongili wrote:
>
>
>>[CC-in relevant people/ML]
>>
>>Hello!
>>
>>second bisection result!
>>
>>On Tue, Jan 10, 2006 at 05:00:37PM -0800, Andrew Morton wrote:
>>
>>
>>>Mattia Dongili <malattia@linux.it> wrote:
>>>
>>>
>>[...]
>>
>>
>>>>1- reiser3 oopsed[1] twice while suspending to ram. It seems
>>>> reproducible (have some activity on the fs and suspend)
>>>>
>>>>
>>>No significant reiser3 changes in there, so I'd be suspecting something
>>>else has gone haywire.
>>>
>>>
>>you're right: git-xfs.patch is the bad guy.
>>
>>Unfortunately netconsole isn't helpful in capturing the oops (no serial
>>ports here) but I have two more shots (more readable):
>>http://oioio.altervista.org/linux/dsc03148.jpg
>>http://oioio.altervista.org/linux/dsc03149.jpg
>>
>>
>
>Hmm, thats odd. It seems to be coming from:
>reiserfs_commit_page -> reiserfs_add_ordered_list -> __add_jh(inline)
>
>I guess XFS may have left a buffer_head in an unusual state (with some
>private flag/b_private set), somehow, and perhaps that buffer_head has
>later been allocated for a page in a reiserfs write. Does this patch,
>below, help at all?
>
>I see one BUG check in __add_jh for non-NULL b_private, but can't see
>the top of your console output from the photos - is there a preceding
>line with "kernel BUG at ..." in it?
>
>cheers.
>
>
>

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