Re: fuzz testing a 32 bit UML guest with NFSv4 gave: BUG kmalloc-256 (Not tainted): Redzone overwritten

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Sorry, that was from a backport.

The correct commit is:

commit 6094f83864c1d1296566a282cba05ba613f151ee
Author: Weston Andros Adamson <dros@xxxxxxxxxxxxxxx>
Date:   Thu May 15 11:56:50 2014 -0400

    nfs: allow coalescing of subpage requests

My fix seems to work, but I still need to clean it up a bit.

-dros



On Aug 14, 2014, at 12:23 PM, Toralf Förster <toralf.foerster@xxxxxx> wrote:

> On 08/14/2014 12:00 AM, Weston Andros Adamson wrote:
>> There are two solutions:
>> 
>> 1) introduce a new check in nfs_can_coalesce_requests - basically the same
>>    tests as were removed in commit 362251a0eb540cf2537d78d508b2bcd87fe66321, but each with:
>>   && req->wb_page != prev->wb_page.
> 
> Hhm,
> 
> tfoerste@n22 ~/devel/linux $ git show 362251a0eb540cf2537d78d508b2bcd87fe66321
> fatal: bad object 362251a0eb540cf2537d78d508b2bcd87fe66321
> 
> 
> -- 
> Toralf
> 

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