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Re: [Xen-devel] [PATCH 1/3] xen/pv-on-hvm kexec: add quirk for Xen 3.4 and shutdown watches.

On Wed, Oct 10, Konrad Rzeszutek Wilk wrote:

> The commit 254d1a3f02ebc10ccc6e4903394d8d3f484f715e, titled
> "xen/pv-on-hvm kexec: shutdown watches from old kernel" assumes that the
> XenBus backend can deal with reading of values from:
>  "control/platform-feature-xs_reset_watches":
>     ... a patch for xenstored is required so that it
>     accepts the XS_RESET_WATCHES request from a client (see changeset
>     23839:42a45baf037d in xen-unstable.hg). Without the patch for xenstored
>     the registration of watches will fail and some features of a PVonHVM
>     guest are not available. The guest is still able to boot, but repeated
>     kexec boots will fail."
> Sadly this is not true when using a Xen 3.4 hypervisor and booting a PVHVM
> guest. We end up hanging at:

This is sad.
So far I have not seen reports like that with a sles11sp1 or sles11sp2
guest. Thats either because noone uses Xen 3.4+sles11 (or recent
openSuSE) HVM guests, or because it happens to work with that

If the patch solves the issue:

Acked-by: Olaf Hering <olaf@xxxxxxxxx>


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