Re: Dovetail: Adding support for Hyper-v as hypervisor

[Philippe Gerum <rpm@xenomai.org>]

Hi,

Florian Bezdeka <florian.bezdeka@siemens.com> writes:

> Hi Philippe,
>
> I'm currently experimenting with hyper-v as Hypervisor for dovetail. So
> far so good, I'm able to boot the system and the system survives a
> inband stress test. The necessary modifications can be found at [1].
>
> But: Running the Xenomai 3 testsuite - especially the gdb test -
> freezes the system immediately.
>
> When enabling pipeline and dovetail debug options I get the following
> splat report. Ideas welcome...

Since the splat happens because lockdep mistakenly thinks that we are
running in hard irq context although we are actually running a
workqueue, there must be an issue with the tracking of the
hardirq_context variable. Could there be some imbalance with
lockdep_hardirq_{enter, exit}() due to some specifics in routing the
STIMER0 vector?

>
>
> Have you - or someone else - ever tried running dovetail on top of
> hyper-v?
>

Nope.

-- 
Philippe.