Re: Circular lockdep in kvm_reset_vcpu() ?

Marc Zyngier
2023-03-14T11:42:59Z

On 2023-03-14 11:04, Cristian Marussi wrote:
> On Tue, Mar 14, 2023 at 09:28:25AM +0000, Marc Zyngier wrote:
>> On 2023-03-13 18:20, Cristian Marussi wrote:
>> > On Mon, Mar 13, 2023 at 02:09:55PM +0000, Marc Zyngier wrote:
>>
>> > > And -rc2 works just fine here.
>> >
>> > Thanks, I'll dig deeper what's going on un my setup.
>>
>> Actually, you really want this patch[1] which is on its
>> way to Linus.
>>
>> It could explain the issue you're seeing with SMP.
>
> Hi Marc,
>
> thanks this just solves for me on JUNO with guest SMP.
>
> Indeed with earlycon on JUNO with SMP I was seeing, beside a lot of
> workqueue lockup that finally hanged the guest, some puzzling
> 'time-traveling' stamps that seemed to align more with the host time
> than the guest.

Yeah, my bad. Thankfully, Paolo just pulled the fix, and it should
make it into -rc3 (fingers crossed).

M.
--
Jazz is not dead. It just smells funny...