Re: [LKP] [block] 9d037ad707: BUG:unable_to_handle_kernel

From: Jens Axboe
Date: Thu Nov 29 2018 - 12:11:02 EST

On 11/29/18 10:05 AM, Christoph Hellwig wrote:
> On Thu, Nov 29, 2018 at 05:20:31PM +0800, kernel test robot wrote:
>> FYI, we noticed the following commit (built with gcc-7):
>> commit: 9d037ad707ed6069fbea4e38e6ee37e027b13f1d ("block: remove req->timeout_list")
>> mq-perf
> This looks very odd. How could we introduce a new BUG with the removal
> of an unused structure member?

Someone else reported a t10 pi issue, I'm guessing it's a latent bug and
the struct size changing is causing it to trigger weirdly on this one.
That's the only explanation, as it can't possibly be this specific commit.

Jens Axboe