On Tue, Aug 01, 2006 at 01:39:23PM +0900, Akio Takebe wrote:
> Hi, Horms
>
> >
> >That seems fine to me. Though there was some resistance to a
> >patch I sent which adds a panic option to xen-console, which
> >is the hypervisor equivalent of sysrq.
> >
> This patch focus only manually dumping domU's core.
> How can I use the panic option of xen-console?
> I thought your patch to panic xen.
> Can I dump domU's core with the option?
Sorry, I was not clear.
Yes, my patch is to panic (or more recently cause a crash dump)
in the hypervisor. It does not give any special behaviour to
the domains.
What I meant was, that the idea of adding a panic to domU's sysrq
is similar to my idea of adding panic to the xen console. And I was
asked to change this patch to make it trigger a kdump directly,
rather than a panic.
I think that your sysrq patch and my xen-console panic patches
are related, and I wanted to bring that into the discussion.
> >Also, is this option really Xen specific. It seems it
> >might be just as useful in regular Linux.
>
> This is a patch to dump domU's core,
> so Linux is not useful becaus Linux can dump by calling crash_kexec().
Right, but it does this using panic() which does have some effect
in regular Linux. I am just wondering if your solution answers
a more generic question than how to dump domU.
--
Horms
H: http://www.vergenet.net/~horms/
W: http://www.valinux.co.jp/en/
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