[Xen-devel] Re: [PATCH] x86 hvm: fix missing ticks issue in c/s 20218

[Christoph Egger <Christoph.Egger@xxxxxxx>]

On Friday 25 September 2009 16:22:39 Keir Fraser wrote:
> Applied as c/s 20255. I messed with it some more, so perhaps worth checking
> the bug still is gone. ;-)

I retested and the bug is still gone.

Christoph

>  -- Keir
>
> On 25/09/2009 13:25, "Kouya Shimura" <kouya@xxxxxxxxxxxxxx> wrote:
> > Keir,
> > Okay, attached is a new patch per your advice.
> > I tested it carefully. It works for me.
> >
> > Christoph,
> > Could you please test it?
> >
> > Thanks,
> > Kouya
> >
> > Keir Fraser writes:
> >> On 25/09/2009 10:32, "Kouya Shimura" <kouya@xxxxxxxxxxxxxx> wrote:
> >>> I've forgotten VCPU switch. Indeed, it's pretty fragile. :-)
> >>> What about modifying pt_restore_timer() not to advance pt->scheduled?
> >>> We should rename pending_intr_nr to pending_intr(boolean).
> >>
> >> It's not clear to me that the old logic around pt->pending_intr_nr and
> >> pt->scheduled really needs to change that drastically. The more we mess
> >> with this code the more likely we are to break stuff, as it's hard to
> >> get good coverage of the timer_modes and various ways guest Oses may
> >> manage their timers.
> >>
> >> I would prefer to see whether moving the update of pt->scheduled out of
> >> pt_intr_post() and back into the timer_fn() works. That moves us back
> >> towards what we had before your patches, and therefore I'm more
> >> comfortable with it.
> >>
> >>  -- Keir
> >
> > Signed-off-by: Kouya Shimura <kouya@xxxxxxxxxxxxxx>



-- 
---to satisfy European Law for business letters:
Advanced Micro Devices GmbH
Karl-Hammerschmidt-Str. 34, 85609 Dornach b. Muenchen
Geschaeftsfuehrer: Andrew Bowd, Thomas M. McCoy, Giuliano Meroni
Sitz: Dornach, Gemeinde Aschheim, Landkreis Muenchen
Registergericht Muenchen, HRB Nr. 43632


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel