Hello, kernel test robot noticed "kmsg.sanitizer.direct_leak/__interceptor_malloc/perf_cpu_map__alloc/perf_cpu_map__empty_new/cpu_map__from_range/cpu_map__new_data/perf_event__fprintf_event_update" on: commit: a0c41caebab2fa224454d50dd4e29ae008ead25f ("perf pmu: Add CPU map for "cpu" PMUs") https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master [test failed on linus/master 18b44bc5a67275641fb26f2c54ba7eef80ac5950] [test failed on linux-next/master 0ba5d07205771c50789fd9063950aa75e7f1183f] in testcase: perf-test version: perf-test-x86_64-git-1_20220520 with following parameters: type: lkp group: group-01 test-description: The internal Perf Test suite. compiler: gcc-12 test machine: 224 threads 2 sockets Intel(R) Xeon(R) Platinum 8480+ (Sapphire Rapids) with 256G memory (please refer to attached dmesg/kmsg for entire log/backtrace) we also noticed there are 2 other "Direct leak" but exist on both this commit and parent. (there are 3 "Indrect leak", but since exist on both this commit and parent, we don't highlight below, details are in attached dmesg) we are not sure enough the impact of those 2 other "Direct leak", which we will check further if we can capture the first commit caused them. we just report this difference we found in our tests FYI. 1578e63d3ac292ab a0c41caebab2fa224454d50dd4e ---------------- --------------------------- fail:runs %reproduction fail:runs | | | 6:6 0% 6:6 kmsg.sanitizer.direct_leak/__interceptor_calloc/map__new2/machine__addnew_module_map/machine__process_kernel_mmap_event/machine__process_mmap_event/perf_event__process_mmap 6:6 0% 6:6 kmsg.sanitizer.direct_leak/__interceptor_malloc/__maps__insert/maps__insert/thread__insert_map/machine__process_mmap2_event/perf_event__process_mmap2 :6 100% 6:6 kmsg.sanitizer.direct_leak/__interceptor_malloc/perf_cpu_map__alloc/perf_cpu_map__empty_new/cpu_map__from_range/cpu_map__new_data/perf_event__fprintf_event_update If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-lkp/202307271322.40c2fc50-oliver.sang@intel.com ================================================================= ==16107==ERROR: LeakSanitizer: detected memory leaks Direct leak of 17544 byte(s) in 51 object(s) allocated from: <----- also happens on parent #0 0x7f77a26ad037 in __interceptor_calloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:154 #1 0x55eae21bcf4a in map__new2 util/map.c:226 #2 0x55eae21a1b8b in machine__addnew_module_map util/machine.c:1039 #3 0x55eae21a80d9 in machine__process_kernel_mmap_event util/machine.c:1809 #4 0x55eae21aa396 in machine__process_mmap_event util/machine.c:1996 #5 0x55eae2069f1c in perf_event__process_mmap util/event.c:371 #6 0x55eae21daa15 in machines__deliver_event util/session.c:1565 #7 0x55eae21dc2f5 in perf_session__deliver_event util/session.c:1645 #8 0x55eae21df380 in perf_session__process_event util/session.c:1881 #9 0x55eae21e622c in process_simple util/session.c:2442 #10 0x55eae21e527c in reader__read_event util/session.c:2371 #11 0x55eae21e5bbc in reader__process_events util/session.c:2420 #12 0x55eae21e69e5 in __perf_session__process_events util/session.c:2467 #13 0x55eae21e991d in perf_session__process_events util/session.c:2633 #14 0x55eae1d248dc in __cmd_report /usr/src/perf_selftests-x86_64-rhel-8.3-bpf-a0c41caebab2fa224454d50dd4e29ae008ead25f/tools/perf/builtin-report.c:989 #15 0x55eae1d30f76 in cmd_report /usr/src/perf_selftests-x86_64-rhel-8.3-bpf-a0c41caebab2fa224454d50dd4e29ae008ead25f/tools/perf/builtin-report.c:1709 #16 0x55eae200824f in run_builtin /usr/src/perf_selftests-x86_64-rhel-8.3-bpf-a0c41caebab2fa224454d50dd4e29ae008ead25f/tools/perf/perf.c:323 #17 0x55eae2008ad1 in handle_internal_command /usr/src/perf_selftests-x86_64-rhel-8.3-bpf-a0c41caebab2fa224454d50dd4e29ae008ead25f/tools/perf/perf.c:377 #18 0x55eae2009003 in run_argv /usr/src/perf_selftests-x86_64-rhel-8.3-bpf-a0c41caebab2fa224454d50dd4e29ae008ead25f/tools/perf/perf.c:421 #19 0x55eae200972f in main /usr/src/perf_selftests-x86_64-rhel-8.3-bpf-a0c41caebab2fa224454d50dd4e29ae008ead25f/tools/perf/perf.c:537 #20 0x7f77a1854d09 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x23d09) Direct leak of 904 byte(s) in 1 object(s) allocated from: #0 0x7f77a26ace8f in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145 #1 0x55eae2648cdd in perf_cpu_map__alloc (/usr/src/perf_selftests-x86_64-rhel-8.3-bpf-a0c41caebab2fa224454d50dd4e29ae008ead25f/tools/perf/perf+0x19a5cdd) #2 0x55eae22f7525 in perf_cpu_map__empty_new util/cpumap.c:163 #3 0x55eae22f6dae in cpu_map__from_range util/cpumap.c:121 #4 0x55eae22f7278 in cpu_map__new_data util/cpumap.c:144 #5 0x55eae2179b4c in perf_event__fprintf_event_update util/header.c:4348 #6 0x55eae217a084 in perf_event__process_event_update util/header.c:4410 #7 0x55eae21dcbb1 in perf_session__process_user_event util/session.c:1679 #8 0x55eae21df1b7 in perf_session__process_event util/session.c:1867 #9 0x55eae21e622c in process_simple util/session.c:2442 #10 0x55eae21e527c in reader__read_event util/session.c:2371 #11 0x55eae21e5bbc in reader__process_events util/session.c:2420 #12 0x55eae21e69e5 in __perf_session__process_events util/session.c:2467 #13 0x55eae21e991d in perf_session__process_events util/session.c:2633 #14 0x55eae1d248dc in __cmd_report /usr/src/perf_selftests-x86_64-rhel-8.3-bpf-a0c41caebab2fa224454d50dd4e29ae008ead25f/tools/perf/builtin-report.c:989 #15 0x55eae1d30f76 in cmd_report /usr/src/perf_selftests-x86_64-rhel-8.3-bpf-a0c41caebab2fa224454d50dd4e29ae008ead25f/tools/perf/builtin-report.c:1709 #16 0x55eae200824f in run_builtin /usr/src/perf_selftests-x86_64-rhel-8.3-bpf-a0c41caebab2fa224454d50dd4e29ae008ead25f/tools/perf/perf.c:323 #17 0x55eae2008ad1 in handle_internal_command /usr/src/perf_selftests-x86_64-rhel-8.3-bpf-a0c41caebab2fa224454d50dd4e29ae008ead25f/tools/perf/perf.c:377 #18 0x55eae2009003 in run_argv /usr/src/perf_selftests-x86_64-rhel-8.3-bpf-a0c41caebab2fa224454d50dd4e29ae008ead25f/tools/perf/perf.c:421 #19 0x55eae200972f in main /usr/src/perf_selftests-x86_64-rhel-8.3-bpf-a0c41caebab2fa224454d50dd4e29ae008ead25f/tools/perf/perf.c:537 #20 0x7f77a1854d09 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x23d09) Direct leak of 64 byte(s) in 2 object(s) allocated from: <----- also happens on parent #0 0x7f77a26ace8f in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145 #1 0x55eae21c15b1 in __maps__insert util/maps.c:43 #2 0x55eae21c1a2a in maps__insert util/maps.c:70 #3 0x55eae22038ba in thread__insert_map util/thread.c:355 #4 0x55eae21a9bed in machine__process_mmap2_event util/machine.c:1959 #5 0x55eae2069f70 in perf_event__process_mmap2 util/event.c:379 #6 0x55eae21dac1e in machines__deliver_event util/session.c:1569 #7 0x55eae21dc2f5 in perf_session__deliver_event util/session.c:1645 #8 0x55eae21c7f35 in ordered_events__deliver_event util/session.c:188 #9 0x55eae21f7824 in do_flush util/ordered-events.c:245 #10 0x55eae21f863f in __ordered_events__flush util/ordered-events.c:324 #11 0x55eae21f8b1a in ordered_events__flush util/ordered-events.c:342 #12 0x55eae21e6a08 in __perf_session__process_events util/session.c:2471 #13 0x55eae21e991d in perf_session__process_events util/session.c:2633 #14 0x55eae1d248dc in __cmd_report /usr/src/perf_selftests-x86_64-rhel-8.3-bpf-a0c41caebab2fa224454d50dd4e29ae008ead25f/tools/perf/builtin-report.c:989 #15 0x55eae1d30f76 in cmd_report /usr/src/perf_selftests-x86_64-rhel-8.3-bpf-a0c41caebab2fa224454d50dd4e29ae008ead25f/tools/perf/builtin-report.c:1709 #16 0x55eae200824f in run_builtin /usr/src/perf_selftests-x86_64-rhel-8.3-bpf-a0c41caebab2fa224454d50dd4e29ae008ead25f/tools/perf/perf.c:323 #17 0x55eae2008ad1 in handle_internal_command /usr/src/perf_selftests-x86_64-rhel-8.3-bpf-a0c41caebab2fa224454d50dd4e29ae008ead25f/tools/perf/perf.c:377 #18 0x55eae2009003 in run_argv /usr/src/perf_selftests-x86_64-rhel-8.3-bpf-a0c41caebab2fa224454d50dd4e29ae008ead25f/tools/perf/perf.c:421 #19 0x55eae200972f in main /usr/src/perf_selftests-x86_64-rhel-8.3-bpf-a0c41caebab2fa224454d50dd4e29ae008ead25f/tools/perf/perf.c:537 #20 0x7f77a1854d09 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x23d09) To reproduce: git clone https://github.com/intel/lkp-tests.git cd lkp-tests sudo bin/lkp install job.yaml # job file is attached in this email bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run sudo bin/lkp run generated-yaml-file # if come across any failure that blocks the test, # please remove ~/.lkp and /lkp dir to run from a clean state. -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki