On 01/18/2017 03:48 AM, Hannes Reinecke wrote:
> Nearly there.
> You're missing a 'blk_mq_start_hw_queues(q)' after
> blk_mq_unfreeze_queue(); without it the queue will stall after switching
> the scheduler.
Yes indeed, forgot that. Needed after the quiesce.
> Also what's quite suspicious is this
On 01/17/2017 02:00 PM, Jens Axboe wrote:
> On 01/17/2017 04:47 AM, Jens Axboe wrote:
>> On 01/17/2017 12:57 AM, Hannes Reinecke wrote:
>>> Hi Jens,
>>>
>>> I gave your latest patchset from
>>>
>>> git.kernel.dk/linux-block blk-mq-sched
>>>
>>> I see a kernel oops when shutting down:
>>>
>>> [ 2132
On 01/17/2017 12:57 AM, Hannes Reinecke wrote:
> Hi Jens,
>
> I gave your latest patchset from
>
> git.kernel.dk/linux-block blk-mq-sched
>
> I see a kernel oops when shutting down:
>
> [ 2132.708929] systemd-shutdown[1]: Detaching DM devices.
> [ 2132.965107] BUG: unable to handle kernel NULL
On 01/17/2017 04:47 AM, Jens Axboe wrote:
> On 01/17/2017 12:57 AM, Hannes Reinecke wrote:
>> Hi Jens,
>>
>> I gave your latest patchset from
>>
>> git.kernel.dk/linux-block blk-mq-sched
>>
>> I see a kernel oops when shutting down:
>>
>> [ 2132.708929] systemd-shutdown[1]: Detaching DM devices.
>>
Hi Jens,
I gave your latest patchset from
git.kernel.dk/linux-block blk-mq-sched
I see a kernel oops when shutting down:
[ 2132.708929] systemd-shutdown[1]: Detaching DM devices.
[ 2132.965107] BUG: unable to handle kernel NULL pointer dereference at
0001
[ 2133.037182] IP: dd_merg
