From: Brendan Cully <brendan@cs.ubc.ca>
To: James Harper <james.harper@bendigoit.com.au>
Cc: Christopher Head <chead@cs.ubc.ca>, xen-devel@lists.xensource.com
Subject: Re: differences in hvm save/restore in 3.1 vs 3.2
Date: Fri, 4 Jul 2008 00:07:41 -0700 [thread overview]
Message-ID: <20080704070741.GA26172@zanzibar.lan> (raw)
In-Reply-To: <AEC6C66638C05B468B556EA548C1A77D0148FCD8@trantor>
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
next prev parent reply other threads:[~2008-07-04 7:07 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-04 5:13 differences in hvm save/restore in 3.1 vs 3.2 James Harper
2008-07-04 5:16 ` James Harper
2008-07-04 6:56 ` Christopher Head
2008-07-04 7:03 ` James Harper
2008-07-04 7:07 ` Brendan Cully [this message]
2008-07-04 7:31 ` James Harper
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