linux-kernel - Re: [PATCH v13 2/8] start vm after resetting it

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Message-ID: <51346A21.3010601@redhat.com>
Date:	Mon, 04 Mar 2013 10:32:17 +0100
From:	Paolo Bonzini <pbonzini@...hat.com>
To:	Hu Tao <hutao@...fujitsu.com>
CC:	kvm list <kvm@...r.kernel.org>, qemu-devel <qemu-devel@...gnu.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Daniel P. Berrange" <berrange@...hat.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Jan Kiszka <jan.kiszka@...mens.com>,
	Gleb Natapov <gleb@...hat.com>,
	Blue Swirl <blauwirbel@...il.com>,
	Eric Blake <eblake@...hat.com>,
	Andrew Jones <drjones@...hat.com>,
	Marcelo Tosatti <mtosatti@...hat.com>,
	Sasha Levin <levinsasha928@...il.com>,
	Luiz Capitulino <lcapitulino@...hat.com>,
	Anthony Liguori <aliguori@...ibm.com>,
	Markus Armbruster <armbru@...hat.com>,
	Stefan Hajnoczi <stefanha@...hat.com>,
	Juan Quintela <quintela@...hat.com>,
	Orit Wasserman <owasserm@...hat.com>,
	Kevin Wolf <kwolf@...hat.com>,
	Wen Congyang <wency@...fujitsu.com>,
	"Michael S. Tsirkin" <mst@...hat.com>,
	Alexander Graf <agraf@...e.de>,
	Alex Williamson <alex.williamson@...hat.com>,
	Peter Maydell <peter.maydell@...aro.org>
Subject: Re: [PATCH v13 2/8] start vm after resetting it

Il 28/02/2013 13:13, Hu Tao ha scritto:
> From: Wen Congyang <wency@...fujitsu.com>
> 
> The guest should run after resetting it, but it does not run if its
> old state is RUN_STATE_INTERNAL_ERROR or RUN_STATE_PAUSED.
> 
> We don't set runstate to RUN_STATE_PAUSED when resetting the guest,
> so the runstate will be changed from RUN_STATE_INTERNAL_ERROR or
> RUN_STATE_PAUSED to RUN_STATE_RUNNING(not RUN_STATE_PAUSED).

This is also debatable.  In particular, restarting an INTERNAL_ERROR
guest makes it harder to inspect the state at the time of the failure.

INTERNAL_ERROR should never happen, let's separate this patch too.

Paolo
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