From mboxrd@z Thu Jan  1 00:00:00 1970
From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Subject: Re: [BUG] 'o' debug key panics the hypervisor
Date: Thu, 27 Aug 2015 14:33:33 -0400
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To: Roger Pau =?iso-8859-1?Q?Monn=E9?= <roger.pau@citrix.com>
Cc: yang.z.zhang@intel.com, Andrew Cooper <andrew.cooper3@citrix.com>, Kevin Tian <kevin.tian@intel.com>, Jan Beulich <JBeulich@suse.com>, xen-devel <xen-devel@lists.xenproject.org>
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On Thu, Aug 27, 2015 at 04:07:36PM +0200, Roger Pau Monn=E9 wrote:
> El 27/08/15 a les 16.01, Jan Beulich ha escrit:
> >>>> On 27.08.15 at 13:29, <roger.pau@citrix.com> wrote:
> >> When using Intel hardware without shared page tables between the IOMMU =

> >> and EPT (I have not tried if the same happens when sharing the page =

> >> tables), the following crash happens if I press the 'o' debug key with =

> >> a HVM guest running. The guest doesn't have any device passed-through.
> > =

> > This last thing is the relevant one: No-one ever cared to use 'o' witho=
ut
> > also passing through a device.
> =

> I have to admit I discovered this when I thought I was typing at the
> Dom0 console but it turns out I had it switched to the Xen console...
> Anyway, it shouldn't crash Xen.

And it would be called by '*' which is often used in the field to
collect data.

I concur on the not-crashing Xen part.
> =

> Roger.
> =

> =

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