linux-kernel - Re: [PATCH v2 0/7] Perf stat --null/offline CPU segv related fixes/tests

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Message-Id: <176487545073.182574.11916635182102768588.b4-ty@kernel.org>
Date: Thu, 04 Dec 2025 11:10:50 -0800
From: Namhyung Kim <namhyung@...nel.org>
To: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, 
 Arnaldo Carvalho de Melo <acme@...nel.org>, 
 Alexander Shishkin <alexander.shishkin@...ux.intel.com>, 
 Jiri Olsa <jolsa@...nel.org>, Adrian Hunter <adrian.hunter@...el.com>, 
 James Clark <james.clark@...aro.org>, 
 Thomas Richter <tmricht@...ux.ibm.com>, linux-perf-users@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Ian Rogers <irogers@...gle.com>
Subject: Re: [PATCH v2 0/7] Perf stat --null/offline CPU segv related
 fixes/tests

On Wed, 03 Dec 2025 13:46:59 -0800, Ian Rogers wrote:
> Ingo reported [1] that `perf stat --null` was segfaulting. Fix the
> underlying issue and add a test to the "perf stat tests". Do some
> related fixing/cleanup in the perf util cpumap code.
> 
> Thomas reported an issue fixed by the same patches [2] but caused by
> giving perf stat an offline CPU. Add test coverage for that and
> improve the "error" message that reports "success".
> 
> [...]
Applied to perf-tools-next, thanks!

Best regards,
Namhyung