On 11/05/2013 09:42 AM, Tomasz Figa wrote:
> Hi,
> 
> On Tuesday 05 of November 2013 17:19:00 Tushar Behera wrote:
>> Hi,
>>
>> We are having a boot-time kernel panic on Samsung's Exynos5250-based
>> Arndale board with next-20131105. Bisect points to following commit.
>>
>> <<<
>> commit febca1baea1cfe2d7a0271385d89b03d5fb34f94
>> Author: Chris Mason <chris.mason@fusionio.com>
>> Date:   Thu Oct 31 13:32:42 2013 -0600
>>
>>     block: setup bi_vcnt on clones
>>
>>     commit 9fc6286f347d changed the cloning code to make clones cheaper for
>>     the case where we don't need to clone the iovec array.  But,
>>     the new clone needs the bi_vnct from the original.
>>
>>     Signed-off-by: Chris Mason <chris.mason@fusionio.com>
>>     Signed-off-by: Jens Axboe <axboe@kernel.dk>
>>>>>
>>
>> Reverting above commit, Arndale is able to boot again.
> 
> I can confirm exactly the same behavior on Exynos 4210-based Trats board,
> with exactly the same bisection results.

Can either (or both) of you try this?

-- 
Jens Axboe