David Gibson wrote:
> On Wed, Nov 04, 2009 at 06:08:44PM +0530, Sachin Sant wrote:
>   
>> Sachin Sant wrote:
>>     
>>> Today's next tree failed to boot on a POWER 6 box with :
>>>
>>> ------------[ cut here ]------------
>>> kernel BUG at mm/mmap.c:2135!
>>> Oops: Exception in kernel mode, sig: 5 [#2]
>>> SMP NR_CPUS=1024 NUMA pSeries
>>>       
>> Problem exists with today's next as well.
>>
>> Likely cause for this problem seems to the following commit.
>> If i revert this patch the machine boots fine.
>>
>> commit a0668cdc154e54bf0c85182e0535eea237d53146
>> powerpc/mm: Cleanup management of kmem_caches for pagetables
>>     
>
> Ugh.  Ok, it's not at all obvious how my patch could cause this bug.
> Can you send your .config?
>   
Attached here is the config.

Thanks
-Sachin


-- 

---------------------------------
Sachin Sant
IBM Linux Technology Center
India Systems and Technology Labs
Bangalore, India
---------------------------------