linux-kernel - Re: [PATCH v5] perf debug: Add function symbols to dump

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Message-Id: <175087468452.1361639.1912600389243885469.b4-ty@kernel.org>
Date: Wed, 25 Jun 2025 11:04:44 -0700
From: Namhyung Kim <namhyung@...nel.org>
To: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, 
 Arnaldo Carvalho de Melo <acme@...nel.org>, 
 Mark Rutland <mark.rutland@....com>, 
 Alexander Shishkin <alexander.shishkin@...ux.intel.com>, 
 Jiri Olsa <jolsa@...nel.org>, Adrian Hunter <adrian.hunter@...el.com>, 
 Kan Liang <kan.liang@...ux.intel.com>, James Clark <james.clark@...aro.org>, 
 Howard Chu <howardchu95@...il.com>, Yicong Yang <yangyicong@...ilicon.com>, 
 linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Ian Rogers <irogers@...gle.com>
Subject: Re: [PATCH v5] perf debug: Add function symbols to dump_stack

On Tue, 24 Jun 2025 14:05:00 -0700, Ian Rogers wrote:
> Symbolize stack traces by creating a live machine. Add this
> functionality to dump_stack and switch dump_stack users to use
> it. Switch TUI to use it. Add stack traces to the child test function
> which can be useful to diagnose blocked code.
> 
> Example output:
> ```
> $ perf test -vv PERF_RECORD_
> ...
>   7: PERF_RECORD_* events & perf_sample fields:
>   7: PERF_RECORD_* events & perf_sample fields                       : Running (1 active)
> ^C
> Signal (2) while running tests.
> Terminating tests with the same signal
> Internal test harness failure. Completing any started tests:
> :  7: PERF_RECORD_* events & perf_sample fields:
> 
> [...]
Applied to perf-tools-next, thanks!

Best regards,
Namhyung