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Re: [Xen-devel] Debuging dom0, oops while kexec

On 21/06/13 13:01, Daniil Cherednik wrote:
> Hello!
> We use ubuntu 12.04 on dom0 xen-4.1, linux-3.5
> We have some issue with our hardware driver, and I need to get dom0
> coredump. But when I was trying to configure kdump it was unsuccessful

This is expected -- kexec from a Xen guest is not supported by upstream

> and I used kexec -l ... to diagnostic the issue I got oops like
> http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1807

Is it really like that one?  That oops dates back to a 2.6.32 kernel.

> Also I noticed recently it was discussing about implementation kexec
> mechanism in hypervisor without involving dom0 kernel...

Yes there is.  See the list archives.  Note that there are some bugs in
the latest version that was posted and I haven't yet had time to post an
updated patch series.


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