Re: [Xen-devel] differences in hvm save/restore in 3.1 vs 3.2

[Brendan Cully <brendan@xxxxxxxxx>]

On Friday, 04 July 2008 at 17:03, James Harper wrote:
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
> > 
> > There's a bug in the serial port emulation in qemu related to saving
> and
> > restoring. There's a patch floating around somewhere which fixes it,
> but
> > depending on what source tree you're using you may not have it yet.
> One
> > of the critical registers isn't saved and also isn't regenerated at
> > restore time, meaning that serial port interrupts stop getting
> delivered
> > to the guest properly.
> > 
> 
> That sounds like the sort of problem I'm seeing. It's obviously a
> regression though as it was working in 3.1.
> 
> I'm using the Debian provided 3.2 packages but can easily apply a patch
> if I can find it... I'll go searching tonight.

It's probably this one:

http://xenbits.xensource.com/xen-unstable.hg/rev/13e10678e714


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