From mboxrd@z Thu Jan  1 00:00:00 1970
From: Olaf Hering <olaf@aepfle.de>
Subject: Re: Re: [PATCH] reset PV devices in crash kernel
Date: Mon, 7 Feb 2011 18:42:05 +0100
Message-ID: <20110207174205.GA9190@aepfle.de>
References: <20110204152850.GA8726@aepfle.de> <20110204153012.GA9258@aepfle.de>
	<20110207162809.GA23727@aepfle.de>
	<20110207171642.GB16937@dumpdata.com>
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To: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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On Mon, Feb 07, Konrad Rzeszutek Wilk wrote:

> On Mon, Feb 07, 2011 at 05:28:09PM +0100, Olaf Hering wrote:
> > 
> > After triggering a crash dump in a HVM guest, the PV backend drivers
> > will remain in connected state.  When the kdump kernel starts the PV
> > drivers will skip such devices.  As a result, no root device is found
> > and the vmcore cant be saved.
> > 
> > With this change all frontend devices with state XenbusStateConnected
> > will be reset by changing the state file to Closing/Closed/Initializing.
> > This will trigger a disconnect in the backend drivers. Now the frontend
> > drivers will find the backend drivers in state Initwait and can connect.
> 
> Do you have a similar patch for the pv-ops?

No yet, due to lack of pv-ops kernel on my side.
I will try to get one up and running soon.

Olaf