Re: crypto: ablk_decrypt causes BUG in scatterwalk

[Dmitry Vyukov]

On Tue, Jan 12, 2016 at 2:16 PM, Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> wrote:
> On Tue, Jan 12, 2016 at 10:27:44AM +0100, Dmitry Vyukov wrote:
>> Hello,
>>
>> The following program cause BUG in scatterwalk:
>
> Weird, I can't reproduce the crash.  Can you perhaps convert this to
> a non-racy reproduction, possibly by using strace to find the order
> of execution that leads to the crash?


Concurrent execution seems to be important to reproduce the crash. I
wasn't able to reproduce it in single-threaded mode.
Try to run it in a tight parallel loop for some time.