From: Chris Frey <cdfrey@foursquare.net>
To: richard -rw- weinberger <richard.weinberger@gmail.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
user-mode-linux-devel@lists.sourceforge.net
Subject: Re: [uml-devel] um: rcu_sched_state detected stall on CPU 0
Date: Mon, 4 Oct 2010 15:26:31 -0400 [thread overview]
Message-ID: <20101004192631.GA30065@foursquare.net> (raw)
In-Reply-To: <AANLkTimmwViVHMy-7S3N9Ps1Vj_n_TfJLvwzoupsFPnp@mail.gmail.com>
On Sat, Oct 02, 2010 at 12:03:04AM +0200, richard -rw- weinberger wrote:
> Hi,
>
> I'm seeing often messages like this one on my UML:
> ...
> INFO: rcu_sched_state detected stall on CPU 0 (t=7348 jiffies)
> ...
>
> The system often seems to be frozen.
> When I press a button it wakes up immediately and continues to run.
>
> Any ideas?
> Config is attached.
I saw this too, but I thought it was because I was overloading my machine.
I only seem to see it when the guest is starved for CPU due to IO on the
host.
- Chris
------------------------------------------------------------------------------
Virtualization is moving to the mainstream and overtaking non-virtualized
environment for deploying applications. Does it make network security
easier or more difficult to achieve? Read this whitepaper to separate the
two and get a better understanding.
http://p.sf.net/sfu/hp-phase2-d2d
_______________________________________________
User-mode-linux-devel mailing list
User-mode-linux-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel
prev parent reply other threads:[~2010-10-04 19:26 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-01 22:03 um: rcu_sched_state detected stall on CPU 0 richard -rw- weinberger
2010-10-04 19:26 ` Chris Frey [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=20101004192631.GA30065@foursquare.net \
--to=cdfrey@foursquare.net \
--cc=linux-kernel@vger.kernel.org \
--cc=richard.weinberger@gmail.com \
--cc=user-mode-linux-devel@lists.sourceforge.net \
/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