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Date: Wed, 14 Mar 2012 12:08:06 +0200
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Subject: Re: [Qemu-devel] [PATCH 0/2 v3] kvm: notify host when guest panicked
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To: Wen Congyang <wency@cn.fujitsu.com>
Cc: Gleb Natapov <gleb@redhat.com>, kvm list <kvm@vger.kernel.org>, Jan Kiszka <jan.kiszka@siemens.com>, qemu-devel <qemu-devel@nongnu.org>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, Amit Shah <amit.shah@redhat.com>, KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>

On 03/14/2012 12:04 PM, Wen Congyang wrote:
> > 
> > This is sufficient.  On the host, you can open /tmp/foo using a custom
> > program or nc (nc -U /tmp/foo).  On the guest, you can just open
> > /dev/virtio-ports/port1 and read/write into it.
>
> I have two questions:
> 1. does it OK to open this device when the guest is panicked?
>

On panic, I think it's best to reset the device and drive it directly
from the panic handler.

-- 
error compiling committee.c: too many arguments to function