Re: [PATCH] workqueue: avoid hard lockups in show_workqueue_state()

From: Tejun Heo
Date: Fri Jan 12 2018 - 14:40:57 EST


On Thu, Jan 11, 2018 at 09:53:35AM +0900, Sergey Senozhatsky wrote:
> show_workqueue_state() can print out a lot of messages while being in
> atomic context, e.g. sysrq-t -> show_workqueue_state(). If the console
> device is slow it may end up triggering NMI hard lockup watchdog.
>
> Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx>

Applied to wq/for-4.15-fixes.

Thanks.

--
tejun