linux-kernel - Re: [Xen-devel] [PATCH 0/2] Xen PV on HVM multiple PV consoles

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Message-ID: <alpine.DEB.2.00.1012061035070.9029@kaball-desktop>
Date:	Mon, 6 Dec 2010 10:36:32 +0000
From:	Stefano Stabellini <stefano.stabellini@...citrix.com>
To:	Vasiliy G Tolstov <v.tolstov@...fip.ru>
CC:	Stefano Stabellini <Stefano.Stabellini@...citrix.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"xen-devel@...ts.xensource.com" <xen-devel@...ts.xensource.com>,
	Jeremy Fitzhardinge <Jeremy.Fitzhardinge@...rix.com>
Subject: Re: [Xen-devel] [PATCH 0/2] Xen PV on HVM multiple PV consoles

On Fri, 3 Dec 2010, Vasiliy G Tolstov wrote:
> On Thu, 2010-12-02 at 17:21 +0000, Stefano Stabellini wrote:
> > On Wed, 1 Dec 2010, Vasiliy G Tolstov wrote:
> > > On Wed, 2010-12-01 at 18:25 +0000, Stefano Stabellini wrote:
> > > > Hi all,
> > > > this small patch series achieves two goals:
> > > > 
> > > > - make PV consoles work for PV on HVM guests;
> > > > 
> > > > - implement support for multiple PV consoles for PV and PV on HVM guests.
> > > > 
> > > > Stefano Stabellini (2):
> > > >       hvc_xen: support PV on HVM consoles
> > > >       hvc_xen: implement multiconsole support
> > > > 
> > > >  drivers/char/hvc_xen.c             |  479 ++++++++++++++++++++++++++++++++----
> > > >  include/xen/interface/hvm/params.h |    6 +-
> > > >  2 files changed, 441 insertions(+), 44 deletions(-)
> > > > 
> > > > A branch with these patches on 2.6.37-rc4 is available here:
> > > > 
> > > > git://xenbits.xen.org/people/sstabellini/linux-pvhvm.git 2.6.37-rc4-pvhvm-pvconsole
> > > > 
> > > > Cheers,
> > > 
> > > Does it possible to apply only this 2 patches on stable-2.6.32.x and get
> > > working serial consoles?
> > > 
> > 
> > I backported the two patches to stable-2.6.32 and created a new branch
> > that is stable-2.6.32.x + support PV on HVM consoles + implement
> > multiconsole support:
> > 
> > git://xenbits.xen.org/people/sstabellini/linux-pvhvm.git stable-2.6.32-pvconsole
> > 
> > I still haven't tested it with xend though.
> 
> Kernel crushed =(. Use config file from 64 bit fully worked
> configuration, what does it mean? How can i find reason for this crush?


Could you please add CONFIG_DEBUG_INFO=y to your kernel config, so that
we can see the name of the functions in the stack trace?

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