Re: [ANNOUNCE] Xen 4.15 release schedule and feature tracking

[Julien Grall <julien@xxxxxxx>]

On 15/01/2021 09:57, Jan Beulich wrote:
> On 14.01.2021 20:02, Andrew Cooper wrote:
> > Bugs:
> >
> > 1) HPET/PIT issue on newer Intel systems.  This has had literally tens
> > of reports across the devel and users mailing lists, and prevents Xen
> > from booting at all on the past two generations of Intel laptop.  I've
> > finally got a repro and posted a fix to the list, but still in progress.
> >
> > 2) "scheduler broken" bugs.  We've had 4 or 5 reports of Xen not
> > working, and very little investigation on whats going on.  Suspicion is
> > that there might be two bugs, one with smt=0 on recent AMD hardware, and
> > one more general "some workloads cause negative credit" and might or
> > might not be specific to credit2 (debugging feedback differs - also
> > might be 3 underlying issue).
> >
> > All of these have had repeated bug reports.  I'd classify them as
> > blockers, given the impact they're having on people.
> 3) Fallout from MSR handling behavioral change.
4) Use-after-free in the IOMMU code (this should be a blocker).

See  "xen/iommu: Collection of bug fixes for IOMMU teadorwn"

<20201222154338.9459-1-julien@xxxxxxx>

Cheers,

> Jan
--
Julien Grall