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Re: [Xen-devel] [Patch] Enable "sysrq c" handler for domU coredump

To: Muli Ben-Yehuda <muli@xxxxxxxxxx>
Subject: Re: [Xen-devel] [Patch] Enable "sysrq c" handler for domU coredump
From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Date: Tue, 1 Aug 2006 09:12:49 +0100
Cc: Horms <horms@xxxxxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Akio Takebe <takebe_akio@xxxxxxxxxxxxxx>, Kouya Shimura <kouya@xxxxxxxxxxxxxx>
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On 1 Aug 2006, at 09:15, Muli Ben-Yehuda wrote:

In the case of linux, crash_kexec() is occured by "sysrq c".
In the case of DomainU on xen, Help is occured by "sysrq c" now.
So The way of dumping DomainU's memory manualy is nothing.

I don't think we're going to modify a previously untouched Linux file
to add support for this.

If we were using a proper Linux kernel tree and not the sparse tree
this wouldn't have been a problem...

My problem is not with adding another file to the sparse tree, it's modifying another file that ought to be none of our business for a feature of dubious worth (maybe useful for kexec/kdump debugging I suppose).

 -- Keir


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