Re: [PATCH] KVM: arm64: Stop the hyp trace clock worker on disable
From: Vincent Donnefort
Date: Mon Jul 20 2026 - 15:03:13 EST
On Mon, Jul 20, 2026 at 08:01:55PM +0100, Vincent Donnefort wrote:
> On Mon, Jul 20, 2026 at 07:48:50PM +0100, Fuad Tabba wrote:
> > When disabling, hyp_trace_clock_enable() cancels the clock work but then
> > falls through into the enable path, which re-schedules it and marks the
> > clock running again, so the worker never stops. Return once the work is
> > cancelled.
> >
> > Fixes: b22888917fa41 ("KVM: arm64: Sync boot clock with the nVHE/pKVM hyp")
> > Reported-by: Sashiko <sashiko-bot@xxxxxxxxxx>
> > Closes: https://lore.kernel.org/all/20260720172923.E4F161F000E9@xxxxxxxxxxxxxxx/
> > Signed-off-by: Fuad Tabba <fuad.tabba@xxxxxxxxx>
>
> Done here already https://lore.kernel.org/all/alczBmnItMwq8xj4@xxxxxxxxxx/
sorry I meant here:
https://lore.kernel.org/all/20260715105100.3178255-1-vdonnefort@xxxxxxxxxx/
>
> > ---
> > arch/arm64/kvm/hyp_trace.c | 1 +
> > 1 file changed, 1 insertion(+)
> >
> > diff --git a/arch/arm64/kvm/hyp_trace.c b/arch/arm64/kvm/hyp_trace.c
> > index 2411b4c32932c..27367843fd211 100644
> > --- a/arch/arm64/kvm/hyp_trace.c
> > +++ b/arch/arm64/kvm/hyp_trace.c
> > @@ -116,6 +116,7 @@ static void hyp_trace_clock_enable(struct hyp_trace_clock *hyp_clock, bool enabl
> > if (!enable) {
> > cancel_delayed_work_sync(&hyp_clock->work);
> > hyp_clock->running = false;
> > + return;
> > }
> >
> > ktime_get_snapshot_id(CLOCK_BOOTTIME, &snap);
> >
> > base-commit: 1590cf0329716306e948a8fc29f1d3ee87d3989f
> > --
> > 2.39.5
> >