From: Qian Cai <quic_qiancai@quicinc.com>
To: Robin Murphy <robin.murphy@arm.com>
Cc: <will@kernel.org>, <mark.rutland@arm.com>,
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH 0/4] perf/arm-cmn: Add CMN-650 and CMN-700
Date: Tue, 10 May 2022 16:09:49 -0400 [thread overview]
Message-ID: <20220510200949.GB302@qian> (raw)
In-Reply-To: <781f1ac8-a30c-81d9-8831-22bfbf593f58@arm.com>
On Tue, May 10, 2022 at 06:50:56PM +0100, Robin Murphy wrote:
> Hmm, can you narrow it down a bit more to a particular patch and/or a
> specific reproducer? I don't see how it could really be crashing
> dereferencing event->pmu, especially since none of the code this early in
> event_init has even changed recently :/
Specifically, One of "e" == NULL in arm_cmn_filter_sel().
e = container_of(arm_cmn_event_attrs[i], typeof(*e), attr.attr);
Then, the next line will dereference it.
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prev parent reply other threads:[~2022-05-10 20:11 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-18 22:57 [PATCH 0/4] perf/arm-cmn: Add CMN-650 and CMN-700 Robin Murphy
2022-04-18 22:57 ` [PATCH 1/4] dt-bindings: perf: arm-cmn: " Robin Murphy
2022-04-26 20:12 ` Rob Herring
2022-04-18 22:57 ` [PATCH 2/4] perf/arm-cmn: Add CMN-650 support Robin Murphy
2022-04-19 23:05 ` Ilkka Koskinen
2022-04-19 23:47 ` Ilkka Koskinen
2022-04-20 9:26 ` Will Deacon
2022-04-20 10:12 ` Robin Murphy
2022-04-21 7:09 ` Ilkka Koskinen
2022-04-21 7:25 ` Ilkka Koskinen
2022-04-21 9:46 ` Robin Murphy
2022-04-21 21:26 ` Ilkka Koskinen
2022-04-18 22:57 ` [PATCH 3/4] perf/arm-cmn: Refactor occupancy filter selector Robin Murphy
2022-04-18 22:57 ` [PATCH 4/4] perf/arm-cmn: Add CMN-700 support Robin Murphy
2022-04-21 7:54 ` [PATCH 0/4] perf/arm-cmn: Add CMN-650 and CMN-700 Ilkka Koskinen
2022-05-06 14:43 ` Will Deacon
2022-05-10 17:15 ` Qian Cai
2022-05-10 17:50 ` Robin Murphy
2022-05-10 19:38 ` Qian Cai
2022-05-10 21:05 ` Robin Murphy
2022-05-10 20:09 ` Qian Cai [this message]
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