This repository has been archived by the owner on May 2, 2024. It is now read-only.
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
perf evsel: Free evsel->counts in perf_evsel__exit()
[ Upstream commit 42dfa45 ] Using gcc's ASan, Changbin reports: ================================================================= ==7494==ERROR: LeakSanitizer: detected memory leaks Direct leak of 48 byte(s) in 1 object(s) allocated from: #0 0x7f0333a89138 in calloc (/usr/lib/x86_64-linux-gnu/libasan.so.5+0xee138) beagleboard#1 0x5625e5330a5e in zalloc util/util.h:23 beagleboard#2 0x5625e5330a9b in perf_counts__new util/counts.c:10 beagleboard#3 0x5625e5330ca0 in perf_evsel__alloc_counts util/counts.c:47 beagleboard#4 0x5625e520d8e5 in __perf_evsel__read_on_cpu util/evsel.c:1505 beagleboard#5 0x5625e517a985 in perf_evsel__read_on_cpu /home/work/linux/tools/perf/util/evsel.h:347 beagleboard#6 0x5625e517ad1a in test__openat_syscall_event tests/openat-syscall.c:47 beagleboard#7 0x5625e51528e6 in run_test tests/builtin-test.c:358 beagleboard#8 0x5625e5152baf in test_and_print tests/builtin-test.c:388 beagleboard#9 0x5625e51543fe in __cmd_test tests/builtin-test.c:583 beagleboard#10 0x5625e515572f in cmd_test tests/builtin-test.c:722 beagleboard#11 0x5625e51c3fb8 in run_builtin /home/changbin/work/linux/tools/perf/perf.c:302 beagleboard#12 0x5625e51c44f7 in handle_internal_command /home/changbin/work/linux/tools/perf/perf.c:354 beagleboard#13 0x5625e51c48fb in run_argv /home/changbin/work/linux/tools/perf/perf.c:398 beagleboard#14 0x5625e51c5069 in main /home/changbin/work/linux/tools/perf/perf.c:520 beagleboard#15 0x7f033214d09a in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2409a) Indirect leak of 72 byte(s) in 1 object(s) allocated from: #0 0x7f0333a89138 in calloc (/usr/lib/x86_64-linux-gnu/libasan.so.5+0xee138) beagleboard#1 0x5625e532560d in zalloc util/util.h:23 beagleboard#2 0x5625e532566b in xyarray__new util/xyarray.c:10 beagleboard#3 0x5625e5330aba in perf_counts__new util/counts.c:15 beagleboard#4 0x5625e5330ca0 in perf_evsel__alloc_counts util/counts.c:47 beagleboard#5 0x5625e520d8e5 in __perf_evsel__read_on_cpu util/evsel.c:1505 beagleboard#6 0x5625e517a985 in perf_evsel__read_on_cpu /home/work/linux/tools/perf/util/evsel.h:347 beagleboard#7 0x5625e517ad1a in test__openat_syscall_event tests/openat-syscall.c:47 beagleboard#8 0x5625e51528e6 in run_test tests/builtin-test.c:358 beagleboard#9 0x5625e5152baf in test_and_print tests/builtin-test.c:388 beagleboard#10 0x5625e51543fe in __cmd_test tests/builtin-test.c:583 beagleboard#11 0x5625e515572f in cmd_test tests/builtin-test.c:722 beagleboard#12 0x5625e51c3fb8 in run_builtin /home/changbin/work/linux/tools/perf/perf.c:302 beagleboard#13 0x5625e51c44f7 in handle_internal_command /home/changbin/work/linux/tools/perf/perf.c:354 beagleboard#14 0x5625e51c48fb in run_argv /home/changbin/work/linux/tools/perf/perf.c:398 beagleboard#15 0x5625e51c5069 in main /home/changbin/work/linux/tools/perf/perf.c:520 beagleboard#16 0x7f033214d09a in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2409a) His patch took care of evsel->prev_raw_counts, but the above backtraces are about evsel->counts, so fix that instead. Reported-by: Changbin Du <[email protected]> Cc: Alexei Starovoitov <[email protected]> Cc: Daniel Borkmann <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Steven Rostedt (VMware) <[email protected]> Link: https://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> Signed-off-by: Sasha Levin <[email protected]>
- Loading branch information