From: Stefan Hajnoczi <stefanha@gmail.com>
To: Bernd Schubert <bernd.schubert@itwm.fraunhofer.de>
Cc: kvm@vger.kernel.org
Subject: Re: [regression] virtio net locks up
Date: Wed, 11 Jan 2012 16:04:10 +0000 [thread overview]
Message-ID: <CAJSP0QV-ExO7sfr_U5A+TFib=fNAoeB+bYWKujBE4CSfYbq12Q@mail.gmail.com> (raw)
In-Reply-To: <jek9k7$5u1$1@dough.gmane.org>
On Wed, Jan 11, 2012 at 3:24 PM, Bernd Schubert
<bernd.schubert@itwm.fraunhofer.de> wrote:
> Any idea what is going on or how to debug it?
Here are a couple of ideas that would yield more information:
Since the console still works I suggest checking dmesg output inside
the guest. Are there any error messages at the bottom?
Try pinging the host's IP address from inside the guest. Run tcpdump
on the guest's tap interface from the host and observe whether or not
you see any packets being sent from the guest.
rmmod virtio_net inside the guest and then modprobe virtio_net again.
See if network connectivity is restored (remember to rerun DHCP or
whatever, if necessary).
Stefan
next prev parent reply other threads:[~2012-01-11 16:04 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-11 15:24 [regression] virtio net locks up Bernd Schubert
2012-01-11 15:39 ` Bernd Schubert
2012-01-11 16:04 ` Stefan Hajnoczi [this message]
2012-01-11 16:18 ` Bernd Schubert
2012-01-11 17:09 ` Stefan Hajnoczi
2012-07-30 17:33 ` Bernd Schubert
2012-07-30 18:08 ` Bernd Schubert
2012-07-31 10:23 ` Stefan Hajnoczi
2012-08-01 17:05 ` Bernd Schubert
2012-08-02 10:59 ` Stefan Hajnoczi
2012-08-12 11:45 ` Michael S. Tsirkin
2012-08-17 23:25 ` Bernd Schubert
2012-08-19 9:01 ` Michael S. Tsirkin
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