public inbox for linux-rt-users@vger.kernel.org
 help / color / mirror / Atom feed
From: "Ahmed S. Darwish" <a.darwish@linutronix.de>
To: Christoph Mathys <eraserix@gmail.com>
Cc: Linux RT Users <linux-rt-users@vger.kernel.org>
Subject: Re: Hung task in 4.9 using kvm 5.2
Date: Tue, 8 Jun 2021 11:31:05 +0200	[thread overview]
Message-ID: <YL842Rg3yRcTpW2r@lx-t490> (raw)
In-Reply-To: <CALqGcGpVOTGK+WDwqvX=W9140p8xrdAWn01vB8zb_6=mATSjHw@mail.gmail.com>

On Mon, Jun 07, 2021, Christoph Mathys wrote:
>
> When running kvm 5.2 on 4.9-rt (I've yet to verify if !RT is also
> affected), kvm gets stuck regulary requiring a reboot. I get the
> hung_task warning below.
>
> Any thoughts on how to avoid this problem?
>

Did you try running the same configuration with lockdep ON?

Thanks,
Ahmed Darwish

  reply	other threads:[~2021-06-08  9:31 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-07 14:56 Hung task in 4.9 using kvm 5.2 Christoph Mathys
2021-06-08  9:31 ` Ahmed S. Darwish [this message]
2021-06-08 20:32   ` Luis Goncalves
2021-06-09  8:55     ` Christoph Mathys
2021-06-10  7:28       ` Christoph Mathys
2021-06-15 13:49         ` Christoph Mathys

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=YL842Rg3yRcTpW2r@lx-t490 \
    --to=a.darwish@linutronix.de \
    --cc=eraserix@gmail.com \
    --cc=linux-rt-users@vger.kernel.org \
    /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