linux-kernel - Re: rom 3540f985652f41041e54ee82aa53e7dbd55739ae Mon Sep 17 00:00:00 2001

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Message-ID: <ef8e9420-2f73-4d2c-8161-1000ce5f2fc1@amd.com>
Date:   Thu, 14 Sep 2023 19:57:25 +0530
From:   Sandipan Das <sandipan.das@....com>
To:     linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org
Cc:     x86@...nel.org, peterz@...radead.org, leitao@...ian.org,
        mingo@...hat.com, acme@...nel.org, mark.rutland@....com,
        alexander.shishkin@...ux.intel.com, jolsa@...nel.org,
        namhyung@...nel.org, irogers@...gle.com, adrian.hunter@...el.com,
        tglx@...utronix.de, bp@...en8.de, dave.hansen@...ux.intel.com,
        hpa@...or.com, leit@...com, dcostantino@...a.com,
        jhladky@...hat.com, eranian@...gle.com, ananth.narayan@....com,
        ravi.bangoria@....com, santosh.shukla@....com
Subject: Re: rom 3540f985652f41041e54ee82aa53e7dbd55739ae Mon Sep 17 00:00:00
 2001

On 9/14/2023 7:36 PM, Sandipan Das wrote:
> Zen 4 systems running buggy microcode can hit a WARN_ON() in the PMI
> handler, as shown below, several times while perf runs. A simple
> `perf top` run is enough to render the system unusable.
> 
> ...

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