mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: Tejun Heo <tj@kernel.org>
To: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>,
	linux-kernel@vger.kernel.org,
	Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Subject: Re: [PATCH] workqueue: avoid hard lockups in show_workqueue_state()
Date: Fri, 12 Jan 2018 11:40:47 -0800	[thread overview]
Message-ID: <20180112194047.GN3460072@devbig577.frc2.facebook.com> (raw)
In-Reply-To: <20180111005335.24642-1-sergey.senozhatsky@gmail.com>

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@gmail.com>

Applied to wq/for-4.15-fixes.

Thanks.

-- 
tejun

      reply	other threads:[~2018-01-12 19:40 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-11  0:53 Sergey Senozhatsky
2018-01-12 19:40 ` Tejun Heo [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20180112194047.GN3460072@devbig577.frc2.facebook.com \
    --to=tj@kernel.org \
    --cc=jiangshanlai@gmail.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=sergey.senozhatsky.work@gmail.com \
    --cc=sergey.senozhatsky@gmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
Powered by JetHome