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Re: [Xen-devel] [PATCH] console: allow a panic to be triggered from the xen console

  • To: "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx>
  • From: "Christian Limpach" <christian.limpach@xxxxxxxxx>
  • Date: Mon, 10 Jul 2006 21:44:57 +0100
  • Cc: Magnus Damm <magnus@xxxxxxxxxxxxx>, Horms <horms@xxxxxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Mon, 10 Jul 2006 13:45:20 -0700
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On 7/10/06, Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> wrote:

On 7 Jul 2006, at 02:09, Horms wrote:

> this is a resend of this patch, which I believe is a simple but
> useful feature. I have used it extensively to test the kdump
> patches which I have been developing with my colleague Magnus Damm.
> It is probably useful for other purposes too, and is analogous
> to the trigger crashdump feature of Linux's sysrq.

On Linux the sysrq only does anything if kexec is in use and a crash
image has been provided (crash_kexec). Perhaps you should do the same
and make this part of the Xen portion of your kexec patches?

Also please use D (dump?) instead of p.  p is already used by the
performance counters.

I'm a bit concerned that we might eventually run out of keys...  Is
this really useful?


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