[dm-devel] kernel BUG at drivers/md/persistent-data/dm-btree-remove.c:182!

Nikolay Borisov n.borisov at siteground.com
Thu Oct 22 07:59:32 UTC 2015



On 10/21/2015 08:49 PM, Joe Thornber wrote:
> On Tue, Oct 20, 2015 at 10:39:31AM +0800, Dennis Yang wrote:
>> Hi,
>>
>> After I analyzed the metadata of this case couple months ago, I find
>> out that there is another possible bug which might trigger this
>> assertion fail in shift(). I had posted a patch two months ago on the
>> list to explain and fix this issue. Could you help reviewing this?
>>
>> https://www.redhat.com/archives/dm-devel/2015-August/msg00155.html
> 
> Yep, that's a bug.  Sorry I missed it before when you posted.  Here's
> my fix:

Thanks for that, I will apply this and report back if I experience the
same issue. But looking at your test case I'm confident this should fix
the issue. Dennis' patch in contrast still causes the within_one assert
to fail.

Are you going to tag this for stable ?




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