linux-kernel - Re: [PATCH RESEND v3 5/6] perf record: Support AUX pause and resume with BPF

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Message-ID: <20250731091148.GF143191@e132581.arm.com>
Date: Thu, 31 Jul 2025 10:11:48 +0100
From: Leo Yan <leo.yan@....com>
To: kernel test robot <oliver.sang@...el.com>
Cc: oe-lkp@...ts.linux.dev, lkp@...el.com, linux-perf-users@...r.kernel.org,
	linux-kernel@...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>, Jiri Olsa <jolsa@...nel.org>,
	Ian Rogers <irogers@...gle.com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	KP Singh <kpsingh@...nel.org>,
	Matt Bobrowski <mattbobrowski@...gle.com>,
	Song Liu <song@...nel.org>, Alexei Starovoitov <ast@...nel.org>,
	Daniel Borkmann <daniel@...earbox.net>,
	Andrii Nakryiko <andrii@...nel.org>,
	Martin KaFai Lau <martin.lau@...ux.dev>,
	Eduard Zingerman <eddyz87@...il.com>,
	Yonghong Song <yonghong.song@...ux.dev>,
	John Fastabend <john.fastabend@...il.com>,
	Stanislav Fomichev <sdf@...ichev.me>, Hao Luo <haoluo@...gle.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Masami Hiramatsu <mhiramat@...nel.org>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	James Clark <james.clark@...aro.org>,
	Suzuki K Poulose <suzuki.poulose@....com>,
	Mike Leach <mike.leach@...aro.org>, bpf@...r.kernel.org,
	linux-trace-kernel@...r.kernel.org
Subject: Re: [PATCH RESEND v3 5/6] perf record: Support AUX pause and resume
 with BPF

Hi,

On Thu, Jul 31, 2025 at 03:26:01PM +0800, kernel test robot wrote:

[...]

> 2025-07-30 19:06:25 sudo /usr/src/linux-perf-x86_64-rhel-9.4-bpf-e350af63969b875598f0656a20d801bbcaa7bd76/tools/perf/perf test 64 -v
>  64: Convert perf time to TSC                                        :
>  64.1: TSC support                                                   : Running (2 active)
>  64.1: TSC support                                                   : Ok
> --- start ---
> test child forked, pid 7359
> Using CPUID GenuineIntel-6-9E-D
> evlist__open() failed
> ---- end(-1) ----
>  64.2: Perf time to TSC                                              : FAILED!

I roughly read the job.yaml file, seems it does not install clang.
Thus, the building will not enalbe the option BUILD_BPF_SKEL=1.

As a result, auxtrace__update_bpf_map() will return a failure. I will
fix this issue in next spin.

Thanks for test and reporting.

Leo

> The kernel config and materials to reproduce are available at:
> https://download.01.org/0day-ci/archive/20250731/202507310818.a05d2380-lkp@intel.com
> 
> 
> 
> -- 
> 0-DAY CI Kernel Test Service
> https://github.com/intel/lkp-tests/wiki
>