linux-kernel - Re: [RFC PATCH 04/33] Add XEN config options and disable unsupported config options.

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Message-Id: <be0546baf787698b3c9edd4c27c3d9ce@cl.cam.ac.uk>
Date:	Tue, 18 Jul 2006 11:21:18 +0100
From:	Keir Fraser <Keir.Fraser@...cam.ac.uk>
To:	Arjan van de Ven <arjan@...radead.org>
Cc:	virtualization@...ts.osdl.org,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	xen-devel@...ts.xensource.com, Ian Pratt <ian.pratt@...source.com>,
	linux-kernel@...r.kernel.org, Chris Wright <chrisw@...s-sol.org>,
	Andrew Morton <akpm@...l.org>
Subject: Re: [RFC PATCH 04/33] Add XEN config options and disable unsupported config options.


On 18 Jul 2006, at 10:59, Arjan van de Ven wrote:

>>  config KEXEC
>>  	bool "kexec system call (EXPERIMENTAL)"
>> -	depends on EXPERIMENTAL
>> +	depends on EXPERIMENTAL && !X86_XEN
>>  	help
>>  	  kexec is a system call that implements the ability to shutdown 
>> your
>>  	  current kernel, and to start another kernel.  It is like a reboot
>
> hmmm why is kexec incompatible with xen? Don't you want to support 
> crash
> dumps from guests?

There are kexec patches for Xen which haven't yet been merged into our 
tree. Even without that we can take coredumps of guests from the 
control VM, without the guest's active involvement.

  -- Keir

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