From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v5 6/7] drivers/perf: Add support for ARMv8.2 Statistical Profiling Extension
Date: Tue, 3 Oct 2017 15:22:05 +0100 [thread overview]
Message-ID: <20171003142205.GD26552@arm.com> (raw)
In-Reply-To: <20171002183524.ab23b255b6d03331bb36f75a@arm.com>
On Mon, Oct 02, 2017 at 06:35:24PM -0500, Kim Phillips wrote:
[trim other stuff]
> Meanwhile, when I build this v5 arm_spe_pmu as a module, load it, do a
> perf list, rmmod it, then re-load it, I get an Oops:
>
> # insmod arm_spe_pmu.ko
> [ 2018.623646] arm_spe_pmu spe-pmu at 0: probed for CPUs 0-3 [max_record_sz 64, align 1, features 0xf]
> [ 2018.626346] arm_spe_pmu spe-pmu at 1: probed for CPUs 4-7 [max_record_sz 64, align 1, features 0xf]
> # ./perf list
> [ 2021.649688] Unable to handle kernel NULL pointer dereference at virtual address 00000038
[...]
Cheers for the report. Fix here:
https://lkml.org/lkml/2017/10/3/564
Will
next prev parent reply other threads:[~2017-10-03 14:22 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-28 14:09 [PATCH v5 0/7] Add support for the ARMv8.2 Statistical Profiling Extension Will Deacon
2017-09-28 14:09 ` [PATCH v5 1/7] genirq: export irq_get_percpu_devid_partition to modules Will Deacon
2017-09-28 14:09 ` [PATCH v5 2/7] perf/core: Export AUX buffer helpers " Will Deacon
2017-09-28 14:09 ` [PATCH v5 3/7] perf/core: Add PERF_AUX_FLAG_COLLISION to report colliding samples Will Deacon
2017-09-28 14:09 ` [PATCH v5 4/7] arm64: sysreg: Move SPE registers and PSB into common header files Will Deacon
2017-10-02 9:53 ` Marc Zyngier
2017-10-02 9:55 ` Mark Rutland
2017-09-28 14:09 ` [PATCH v5 5/7] arm64: head: Init PMSCR_EL2.{PA, PCT} when entered at EL2 without VHE Will Deacon
2017-10-02 10:03 ` Mark Rutland
2017-09-28 14:09 ` [PATCH v5 6/7] drivers/perf: Add support for ARMv8.2 Statistical Profiling Extension Will Deacon
2017-09-29 22:19 ` Kim Phillips
2017-10-02 14:14 ` Will Deacon
2017-10-02 16:49 ` Arnaldo Carvalho de Melo
2017-10-02 23:35 ` Kim Phillips
2017-10-03 14:22 ` Will Deacon [this message]
2017-10-24 8:42 ` Kim Phillips
2017-09-28 14:09 ` [PATCH v5 7/7] dt-bindings: Document devicetree binding for ARM SPE Will Deacon
2017-10-02 10:07 ` Mark Rutland
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