Re: [Xen-devel] [Xen-users] crashkernel doesn't work with linux-2.6.32-dom0

[Daniel Kiper <dkiper@xxxxxxxxxxxx>]

On Thu, Feb 16, 2012 at 10:36:14AM -0800, Eric Camachat wrote:

[...]

> At beginning, I though there are some hypervisor calls to find out the
> crash buffer, put image into it, excute it. But it seems not.
> I have to study kexec/kdump in both linux and xen to figure out how to
> support kdump.

HYPERVISOR_kexec_op() hypercall is used in dom0 only (more or less for
things you mentioned). Look into include/xen/interface/kexec.h in
Xen Linux Kernel Ver. 2.6.18 for details. kexec/kdump for domU
does not use that hypercall.

Daniel

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