]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
perf tools: Fix missing feature check for inherit + SAMPLE_READ
authorNamhyung Kim <namhyung@kernel.org>
Tue, 11 Nov 2025 07:59:44 +0000 (23:59 -0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 18 Dec 2025 13:02:57 +0000 (14:02 +0100)
commitb2abcb89865b4fae66cb7a6c5f063fa4af0071f4
tree1ba764530360857916c50ed198482e710fdae508
parente485e76864b61670cd30884db98f8706b65d8248
perf tools: Fix missing feature check for inherit + SAMPLE_READ

[ Upstream commit 367377f45c0b568882567f797b7b18b263505be7 ]

It should also have PERF_SAMPLE_TID to enable inherit and PERF_SAMPLE_READ
on recent kernels.  Not having _TID makes the feature check wrongly detect
the inherit and _READ support.

It was reported that the following command failed due to the error in
the missing feature check on Intel SPR machines.

  $ perf record -e '{cpu/mem-loads-aux/S,cpu/mem-loads,ldlat=3/PS}' -- ls
  Error:
  Failure to open event 'cpu/mem-loads,ldlat=3/PS' on PMU 'cpu' which will be removed.
  Invalid event (cpu/mem-loads,ldlat=3/PS) in per-thread mode, enable system wide with '-a'.

Reviewed-by: Ian Rogers <irogers@google.com>
Fixes: 3b193a57baf15c468 ("perf tools: Detect missing kernel features properly")
Reported-and-tested-by: Chen, Zide <zide.chen@intel.com>
Closes: https://lore.kernel.org/lkml/20251022220802.1335131-1-zide.chen@intel.com/
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
tools/perf/util/evsel.c