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[Qemu-devel] windows crash dump header. was: Re: [Question] dump memory
From: |
Alon Levy |
Subject: |
[Qemu-devel] windows crash dump header. was: Re: [Question] dump memory when host pci device is used by guest |
Date: |
Mon, 10 Oct 2011 14:00:21 +0200 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Mon, Oct 10, 2011 at 01:09:17PM +0200, Paolo Bonzini wrote:
> On 10/10/2011 01:04 PM, Daniel P. Berrange wrote:
> >On Mon, Oct 10, 2011 at 12:48:52PM +0200, Paolo Bonzini wrote:
> >>> On 10/10/2011 12:21 PM, Alon Levy wrote:
> >>>>> >> A core file would be that format - for direct gdb processing. No
> >>>>> >> proprietary re-inventions please.
> >>>> >
> >>>> >Just a note: A core file to windows core dump file would be nice for
> >>>> >windows guest crashes.
> >>>
> >>> That requires cooperation from a kernel driver in the Windows guest.
> >>> The driver must call KeInitializeCrashDumpHeader and write somewhere
> >>> the physical address of the buffer.
> >That won't be suitable for 'virsh dump' then, because we need this to
> >work when the guest OS is in a crashed/non-responsive state, and so
> >we cna't rely on talking to it.
>
> Note that the guest can generate the buffer before it crashes.
>
Thanks. The contents seem to be undocumented (stubbed in reactos).
I did find a link to a tool made for Xen, but it mentions being broken
with Windows 2003 (where KeInitializeCrashDumpHeader was introduced).
http://www.osronline.com/showThread.CFM?link=203490
> Paolo
>
- Re: [Qemu-devel] [Question] dump memory when host pci device is used by guest, (continued)
- Re: [Qemu-devel] [Question] dump memory when host pci device is used by guest, Jan Kiszka, 2011/10/10
- Re: [Qemu-devel] [Question] dump memory when host pci device is used by guest, Jan Kiszka, 2011/10/10
- Re: [Qemu-devel] [Question] dump memory when host pci device is used by guest, Daniel P. Berrange, 2011/10/10
- Re: [Qemu-devel] [Question] dump memory when host pci device is used by guest, Wen Congyang, 2011/10/10
- Re: [Qemu-devel] [Question] dump memory when host pci device is used by guest, Jan Kiszka, 2011/10/11
- Re: [Qemu-devel] [Question] dump memory when host pci device is used by guest, Wen Congyang, 2011/10/11
- Re: [Qemu-devel] [Question] dump memory when host pci device is used by guest, Alon Levy, 2011/10/10
- Re: [Qemu-devel] [Question] dump memory when host pci device is used by guest, Paolo Bonzini, 2011/10/10
- Re: [Qemu-devel] [Question] dump memory when host pci device is used by guest, Daniel P. Berrange, 2011/10/10
- Re: [Qemu-devel] [Question] dump memory when host pci device is used by guest, Paolo Bonzini, 2011/10/10
- [Qemu-devel] windows crash dump header. was: Re: [Question] dump memory when host pci device is used by guest,
Alon Levy <=
- Re: [Qemu-devel] windows crash dump header. was: Re: [Question] dump memory when host pci device is used by guest, Paolo Bonzini, 2011/10/10
- Re: [Qemu-devel] windows crash dump header. was: Re: [Question] dump memory when host pci device is used by guest, Alon Levy, 2011/10/10