From: Will Deacon <will@kernel.org>
To: Waiman Long <longman@redhat.com>, Mark Rutland <mark.rutland@arm.com>
Cc: catalin.marinas@arm.com, kernel-team@android.com,
Will Deacon <will@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v6] perf/arm-dmc620: Fix dmc620_pmu_irqs_lock/cpu_hotplug_lock circular lock dependency
Date: Wed, 16 Aug 2023 19:25:27 +0100 [thread overview]
Message-ID: <169219176343.1943871.17852741864277810991.b4-ty@kernel.org> (raw)
In-Reply-To: <20230812235549.494174-1-longman@redhat.com>
On Sat, 12 Aug 2023 19:55:49 -0400, Waiman Long wrote:
> The following circular locking dependency was reported when running
> cpus online/offline test on an arm64 system.
>
> [ 84.195923] Chain exists of:
> dmc620_pmu_irqs_lock --> cpu_hotplug_lock --> cpuhp_state-down
>
> [ 84.207305] Possible unsafe locking scenario:
>
> [...]
Applied to will (for-next/perf), thanks!
[1/1] perf/arm-dmc620: Fix dmc620_pmu_irqs_lock/cpu_hotplug_lock circular lock dependency
https://git.kernel.org/will/c/4c1d2f56d685
Cheers,
--
Will
https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev
prev parent reply other threads:[~2023-08-16 18:26 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-12 23:55 Waiman Long
2023-08-16 18:25 ` Will Deacon [this message]
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