From mboxrd@z Thu Jan  1 00:00:00 1970
From: Chris Lalancette <clalance@redhat.com>
Subject: Re: [PATCH] Fix xenconsole after aborted save
Date: Wed, 22 Apr 2009 11:49:22 +0200
Message-ID: <49EEE822.50707@redhat.com>
References: <C612481D.9071%keir.fraser@eu.citrix.com>
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To: Keir Fraser <keir.fraser@eu.citrix.com>
Cc: Jiri Denemark <jdenemar@redhat.com>, "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>, Gerd Hoffmann <kraxel@redhat.com>
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Keir Fraser wrote:
> Another thing to note is I think this problem can only occur if the domU
> does not support suspend cancellation (advertised as SUSPEND_CANCEL in
> kernel elf notes -- see xen/xend/XendDomainInfo.py:resumeDomain()). Your
> kernels should support that feature -- suspend cancellation (a.k.a. Resume)
> is very likely to be hit-or-miss without it!

Could you elaborate a bit on this?  I was under the impression that suspend
cancellation was there mostly for the netaccel bits, but I have to admit I
didn't look at it very closely.  What scenarios do the suspend cancel bits help?

-- 
Chris Lalancette