linux-kernel - Re: [perf] fuzzer quickly crashes kernel, possibly memcg related

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Message-ID: <bbd92696-a413-5440-eb65-e2caed0d6a98@maine.edu>
Date: Thu, 5 Jun 2025 17:03:28 -0400 (EDT)
From: Vince Weaver <vincent.weaver@...ne.edu>
To: "Liang, Kan" <kan.liang@...ux.intel.com>
cc: Vince Weaver <vincent.weaver@...ne.edu>, linux-kernel@...r.kernel.org, 
    linux-perf-users@...r.kernel.org, Peter Zijlstra <peterz@...radead.org>, 
    Ingo Molnar <mingo@...hat.com>, Arnaldo Carvalho de Melo <acme@...nel.org>, 
    Namhyung Kim <namhyung@...nel.org>, Mark Rutland <mark.rutland@....com>, 
    Alexander Shishkin <alexander.shishkin@...ux.intel.com>, 
    Jiri Olsa <jolsa@...nel.org>, Ian Rogers <irogers@...gle.com>, 
    Adrian Hunter <adrian.hunter@...el.com>, Chen Yu <yu.c.chen@...el.com>, 
    Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [perf] fuzzer quickly crashes kernel, possibly memcg related

On Thu, 5 Jun 2025, Liang, Kan wrote:

> 
> This should be a known issue introduced by
> 9734e25fbf5a perf: Fix the throttle logic for a group
> 
> The patch can fix it.
> https://lore.kernel.org/lkml/20250604171554.3909897-1-kan.liang@linux.intel.com/

I'm testing with this patch and it does seem to fix the problem.

thanks,

Vince Weaver
vincent.weaver@...ne.edu