perf record: Ensure space for lost samples

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Previous allocation didn't account for sample ID written after the
lost samples event. Switch from malloc/free to a stack allocation.

Reported-by: Milian Wolff <milian.wolff@kdab.com>
Closes: https://lore.kernel.org/linux-perf-users/23879991.0LEYPuXRzz@milian-workstation/
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240611050626.1223155-1-irogers@google.com

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Ian Rogers 2024-06-10 22:06:26 -07:00 • committed by Namhyung Kim

parent 6828d6929b

commit 6c1785cd75

2 changed files with 15 additions and 25 deletions

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6

tools/lib/perf/include/perf/event.h

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34

tools/perf/builtin-record.c

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