[Xen-devel] RE: produce windows compatible dump file from Dom0

[Paul Durrant <Paul.Durrant@xxxxxxxxxx>]

IIRC Tim posted kdd a while ago which should allow generation of crash dumps 
from the VM without Windows doing anything at all.

  Paul

> -----Original Message-----
> From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-devel-
> bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of James Harper
> Sent: 23 February 2011 11:07
> To: xen-devel@xxxxxxxxxxxxxxxxxxx
> Subject: [Xen-devel] produce windows compatible dump file from Dom0
> 
> I'm interested in being able to produce a windows dump file from
> Dom0, which would help immensely in tracking down crashes when they
> happen.
> What it would involve is:
> 
> . PV driver would need to prepare a crash dump header via Windows
> API (in advance, and then at crash dump time if possible), store it
> in non-paged memory, and write the PFN out to xenstore . xc would
> need to detect a parameter (eg -w), check for the value in xenstore,
> then write out that as the header and then write out the rest of the
> data in windows dump format. The header could also be detected by
> scanning memory (eg if the crash happened before xenbus was able to
> start) but would be a bit less reliable.
> 
> It might also be possible to manufacture the header from Dom0, but I
> can't say for sure.
> 
> Does this feature or similar already exist in any incantations of
> the
> dom0 tools?
> 
> If not, would it be considered for inclusion into some future
> version of xen?
> 
> Thanks
> 
> James
> 
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