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Re: [Xen-devel] capturing windows crash dumps

To: James Harper <james.harper@xxxxxxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] capturing windows crash dumps
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Tue, 18 Aug 2009 13:10:57 +0100
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On 18/08/2009 11:42, "James Harper" <james.harper@xxxxxxxxxxxxxxxx> wrote:

>> Could it be as simple as write the guest physical address of a
> pre-allocated
>> buffer into xenstore (from GPLPV drivers)? Then dump that area of
> guest
>> memory on guest bugcheck, even as a manual operation from dom0?
> The memory in question could be anything from 64kb (minidump) to the
> size of DomU memory (full dump) or somewhere inbetween (kernel dump).
> I'm normally just interested in the kernel dump which is normally a much
> more respectable size, but still not the size of memory you can easily
> find when the system has gone belly up.

Hmm, okay. Could you dump it out over the emulated serial line?

 -- Keir

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