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[73.202.46.50]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-231d4adafedsm46022135ad.56.2025.05.18.12.09.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 18 May 2025 12:10:00 -0700 (PDT) From: Howard Chu To: acme@kernel.org Cc: mingo@redhat.com, namhyung@kernel.org, mark.rutland@arm.com, alexander.shishkin@linux.intel.com, jolsa@kernel.org, irogers@google.com, adrian.hunter@intel.com, peterz@infradead.org, kan.liang@linux.intel.com, linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, Howard Chu Subject: [PATCH v2 0/5] perf test trace: Reduce test failures and make error messages verbose Date: Sun, 18 May 2025 12:09:52 -0700 Message-ID: <20250518190957.58932-1-howardchu95@gmail.com> X-Mailer: git-send-email 2.45.2 Precedence: bulk X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Currently, BTF tests fail constantly, this series fixes two major reasons why they fail, and makes the error messages acquired when using '-vv' more verbose, so when they fail, one can easily diagnose the problem. Before: $ sudo /tmp/perf test enum -vv 107: perf trace enum augmentation tests: 107: perf trace enum augmentation tests : Running --- start --- test child forked, pid 783533 Checking if vmlinux exists Tracing syscall landlock_add_rule Tracing non-syscall tracepoint syscall ---- end(-1) ---- 107: perf trace enum augmentation tests : FAILED! After: $ sudo /tmp/perf test enum -vv 107: perf trace enum augmentation tests: 107: perf trace enum augmentation tests : Running --- start --- test child forked, pid 851658 Checking if vmlinux exists Tracing syscall landlock_add_rule Tracing non-syscall tracepoint timer:hrtimer_setup,timer:hrtimer_start [tracepoint failure] Failed to trace tracepoint timer:hrtimer_setup,timer:hrtimer_start, output: event syntax error: 'timer:hrtimer_setup,timer:hrtimer_start' \___ unknown tracepoint Error: File /sys/kernel/tracing//events/timer/hrtimer_setup not found. Hint: Perhaps this kernel misses some CONFIG_ setting to enable this feature?. Run 'perf list' for a list of valid events Usage: perf trace [] [] or: perf trace [] -- [] or: perf trace record [] [] or: perf trace record [] -- [] -e, --event event/syscall selector. use 'perf list' to list available events---- end(-1) ---- 107: perf trace enum augmentation tests : FAILED! Changes in v2: - Add an extra newline after error messages - Rename the title of patch 3 to 'Stop tracing hrtimer_setup...' - Take the debug diff for explanation out of patch 5 to make it apply normally - Add base-commit in this cover letter Howard Chu (5): perf test trace: Use shell's -f flag to check if vmlinux exists perf test trace: Remove set -e and print trace test's error messages perf test trace: Stop tracing hrtimer_setup event in trace enum test perf test trace: Remove set -e for BTF general tests perf test trace BTF: Use --sort-events in BTF general tests tools/perf/tests/shell/trace_btf_enum.sh | 17 +++++++++-------- tools/perf/tests/shell/trace_btf_general.sh | 19 +++++++++---------- 2 files changed, 18 insertions(+), 18 deletions(-) base-commit: f3061d526714ac6cc936c48e76a6eb0512c69b1a -- 2.45.2