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[34.77.69.137]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4956537c6besm9428245e9.8.2026.07.20.12.03.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 20 Jul 2026 12:03:03 -0700 (PDT) Date: Mon, 20 Jul 2026 20:02:59 +0100 From: Vincent Donnefort To: Fuad Tabba Cc: maz@kernel.org, oupton@kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, will@kernel.org, joey.gouly@arm.com, seiden@linux.ibm.com, suzuki.poulose@arm.com, yuzenghui@huawei.com, linux-kernel@vger.kernel.org, tabba@google.com Subject: Re: [PATCH] KVM: arm64: Stop the hyp trace clock worker on disable Message-ID: References: <20260720184850.1826630-1-fuad.tabba@linux.dev> Precedence: bulk X-Mailing-List: kvmarm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: 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 > > Closes: https://lore.kernel.org/all/20260720172923.E4F161F000E9@smtp.kernel.org/ > > Signed-off-by: Fuad Tabba > > Done here already https://lore.kernel.org/all/alczBmnItMwq8xj4@google.com/ sorry I meant here: https://lore.kernel.org/all/20260715105100.3178255-1-vdonnefort@google.com/ > > > --- > > 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 > >