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Message-ID: <CAP-5=fXfofa4NOPWibBo43eLj4HNcLR0p1ZAUYo9naLb1wb_jg@mail.gmail.com> Date: Sun, 17 Nov 2024 21:37:37 -0800 From: Ian Rogers <irogers@...gle.com> To: Arnaldo Carvalho de Melo <acme@...nel.org> Cc: Adrian Hunter <adrian.hunter@...el.com>, Jiri Olsa <jolsa@...nel.org>, Kan Liang <kan.liang@...ux.intel.com>, Namhyung Kim <namhyung@...nel.org>, James Clark <james.clark@...aro.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, linux-perf-users@...r.kernel.org Subject: Re: perf test failures with tmp.perf-tools-next On Sat, Nov 16, 2024 at 12:03 PM Arnaldo Carvalho de Melo <acme@...nel.org> wrote: > > On Fri, Nov 15, 2024 at 09:54:56AM -0800, Ian Rogers wrote: > > On Fri, Nov 15, 2024 at 7:49 AM Arnaldo Carvalho de Melo <acme@...nel.org> wrote: > > > Not a hwmon file 'name' > > > FAILED tests/hwmon_pmu.c:160 failed to parse event 'temp_test_hwmon_event1', err 1 > > > event syntax error: 'temp_test_hwmon_event1' > > > \___ Bad event name > > > > > > Unable to find event on a PMU of 'temp_test_hwmon_event1' > > > > > > ---- unexpected signal (11) ---- > > > 11.3: Parsing with PMU name : FAILED! > > > root@x1:~# > > > I'm trying to repro the hwmon issue on tmp.perf-tools-next, with asan > > root/non-root I get: > > ``` > > 11: Hwmon PMU : > > 11.1: Basic parsing test : Ok > > 11.2: Parsing without PMU name : Ok > > 11.3: Parsing with PMU name : Ok > > ``` > > I'm trying more machines to try to get a reproduction. > > So, I cleaned up everything, rebuilt and the problem persists on a > Fedora 40 lenovo x1 carbon, full verbose mode output at the end. > > It also fails on a Raspberry Pi 3: > > acme@...pberrypi:~ $ cat /etc/os-release > PRETTY_NAME="Raspbian GNU/Linux 12 (bookworm)" > NAME="Raspbian GNU/Linux" > VERSION_ID="12" > VERSION="12 (bookworm)" > VERSION_CODENAME=bookworm > ID=raspbian > ID_LIKE=debian > HOME_URL="http://www.raspbian.org/" > SUPPORT_URL="http://www.raspbian.org/RaspbianForums" > BUG_REPORT_URL="http://www.raspbian.org/RaspbianBugs" > acme@...pberrypi:~ $ > root@...pberrypi:~# tail -14 /proc/cpuinfo > processor : 3 > model name : ARMv7 Processor rev 4 (v7l) > BogoMIPS : 38.40 > Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32 > CPU implementer : 0x41 > CPU architecture: 7 > CPU variant : 0x0 > CPU part : 0xd03 > CPU revision : 4 > > Hardware : BCM2835 > Revision : a020d3 > Serial : 00000000783939e0 > Model : Raspberry Pi 3 Model B Plus Rev 1.3 > root@...pberrypi:~# > > root@...pberrypi:~# ~acme/bin/perf -v > perf version 6.12.rc6.gdb26a8c9e3c2 > root@...pberrypi:~# ~acme/bin/perf -vv > perf version 6.12.rc6.gdb26a8c9e3c2 > aio: [ on ] # HAVE_AIO_SUPPORT > bpf: [ on ] # HAVE_LIBBPF_SUPPORT > bpf_skeletons: [ on ] # HAVE_BPF_SKEL > debuginfod: [ OFF ] # HAVE_DEBUGINFOD_SUPPORT > dwarf: [ on ] # HAVE_LIBDW_SUPPORT > dwarf_getlocations: [ on ] # HAVE_LIBDW_SUPPORT > dwarf-unwind: [ on ] # HAVE_DWARF_UNWIND_SUPPORT > auxtrace: [ on ] # HAVE_AUXTRACE_SUPPORT > libaudit: [ on ] # HAVE_LIBAUDIT_SUPPORT > libbfd: [ OFF ] # HAVE_LIBBFD_SUPPORT > libcapstone: [ on ] # HAVE_LIBCAPSTONE_SUPPORT > libcrypto: [ on ] # HAVE_LIBCRYPTO_SUPPORT > libdw-dwarf-unwind: [ on ] # HAVE_LIBDW_SUPPORT > libelf: [ on ] # HAVE_LIBELF_SUPPORT > libnuma: [ on ] # HAVE_LIBNUMA_SUPPORT > libopencsd: [ OFF ] # HAVE_CSTRACE_SUPPORT > libperl: [ on ] # HAVE_LIBPERL_SUPPORT > libpfm4: [ on ] # HAVE_LIBPFM > libpython: [ on ] # HAVE_LIBPYTHON_SUPPORT > libslang: [ on ] # HAVE_SLANG_SUPPORT > libtraceevent: [ on ] # HAVE_LIBTRACEEVENT > libunwind: [ OFF ] # HAVE_LIBUNWIND_SUPPORT > lzma: [ on ] # HAVE_LZMA_SUPPORT > numa_num_possible_cpus: [ on ] # HAVE_LIBNUMA_SUPPORT > syscall_table: [ OFF ] # HAVE_SYSCALL_TABLE_SUPPORT > zlib: [ on ] # HAVE_ZLIB_SUPPORT > zstd: [ on ] # HAVE_ZSTD_SUPPORT > root@...pberrypi:~# ~acme/bin/perf test 11 > 11: Hwmon PMU : > 11.1: Basic parsing test : Ok > 11.2: Parsing without PMU name : FAILED! > 11.3: Parsing with PMU name : FAILED! > root@...pberrypi:~# ~acme/bin/perf test -vv 11 > 11: Hwmon PMU : > 11.1: Basic parsing test: > --- start --- > test child forked, pid 6983 > hwmon_pmu: not a hwmon type 'badtype' in file name 'badtype5_baditem' > hwmon_pmu: not a hwmon item 'baditem' in file name 'humidity6_baditem' > ---- end(0) ---- > 11.1: Basic parsing test : Ok > 11.2: Parsing without PMU name: > --- start --- > test child forked, pid 6984 > Testing 'temp_test_hwmon_event1' > Attempt to add: hwmon_a_test_hwmon_pmu/temp_test_hwmon_event1/ > ..after resolving event: hwmon_a_test_hwmon_pmu/temp_test_hwmon_event1/ > temp_test_hwmon_event1 -> hwmon_a_test_hwmon_pmu/temp_test_hwmon_event1/ > hwmon_pmu: not a hwmon file 'uevent' > Not a hwmon file 'uevent' > hwmon_pmu: not a hwmon file 'name' > Not a hwmon file 'name' > hwmon_pmu: not a hwmon file 'uevent' > Not a hwmon file 'uevent' > hwmon_pmu: not a hwmon file 'name' > Not a hwmon file 'name' > hwmon_pmu: removing event 'in0' that has no input file > Testing 'temp1' > Attempt to add: hwmon_a_test_hwmon_pmu/temp1/ > ..after resolving event: hwmon_a_test_hwmon_pmu/temp1/ > temp1 -> hwmon_a_test_hwmon_pmu/temp1/ > Attempt to add: hwmon_cpu_thermal/temp1/ > ..after resolving event: hwmon_cpu_thermal/temp1/ > temp1 -> hwmon_cpu_thermal/temp1/ > FAILED tests/hwmon_pmu.c:180 Unexpected config for 'temp1', 2114584577 != 655361 > ---- end(-1) ---- > 11.2: Parsing without PMU name : FAILED! > 11.3: Parsing with PMU name: > --- start --- > test child forked, pid 6985 > Testing 'temp_test_hwmon_event1' > Attempt to add: hwmon_a_test_hwmon_pmu/temp_test_hwmon_event1/ > ..after resolving event: hwmon_a_test_hwmon_pmu/temp_test_hwmon_event1/ > temp_test_hwmon_event1 -> hwmon_a_test_hwmon_pmu/temp_test_hwmon_event1/ > hwmon_pmu: not a hwmon file 'uevent' > Not a hwmon file 'uevent' > hwmon_pmu: not a hwmon file 'name' > Not a hwmon file 'name' > hwmon_pmu: not a hwmon file 'uevent' > Not a hwmon file 'uevent' > hwmon_pmu: not a hwmon file 'name' > Not a hwmon file 'name' > hwmon_pmu: removing event 'in0' that has no input file > Testing 'temp1' > Attempt to add: hwmon_a_test_hwmon_pmu/temp1/ > ..after resolving event: hwmon_a_test_hwmon_pmu/temp1/ > temp1 -> hwmon_a_test_hwmon_pmu/temp1/ > Attempt to add: hwmon_cpu_thermal/temp1/ > ..after resolving event: hwmon_cpu_thermal/temp1/ > temp1 -> hwmon_cpu_thermal/temp1/ > FAILED tests/hwmon_pmu.c:180 Unexpected config for 'temp1', 2114584577 != 655361 Ok, sent: https://lore.kernel.org/lkml/20241118052638.754981-1-irogers@google.com/ for this. > ---- end(-1) ---- > 11.3: Parsing with PMU name : FAILED! > root@...pberrypi:~# > > You asked this via chat: > > (gdb) b hwmon_pmu__have_event > Breakpoint 1 at 0x661071: file util/hwmon_pmu.c, line 559. > (gdb) run test 11 > Starting program: /root/bin/perf test 11 > > This GDB supports auto-downloading debuginfo from the following URLs: > <https://debuginfod.fedoraproject.org/> > Enable debuginfod for this session? (y or [n]) n > Debuginfod has been disabled. > To make this setting permanent, add 'set debuginfod enabled off' to .gdbinit. > [Thread debugging using libthread_db enabled] > Using host libthread_db library "/lib64/libthread_db.so.1". > [Detaching after fork from child process 595037] > [Detaching after fork from child process 595039] > [Detaching after fork from child process 595040] > 11: Hwmon PMU : > 11.1: Basic parsing test : Ok > 11.2: Parsing without PMU name : FAILED! > 11.3: Parsing with PMU name : FAILED! > [Inferior 1 (process 594467) exited normally] > (gdb) bt > No stack. > (gdb) > > Hope this helps, will go AFK now, happy to try more stuff and will also > try to figure this out myself if you don't do it first. > > Since this doesn't seem to be something related to the patches processed > this week I'll just push what we have to perf-tools-next so that it gets > tested on linux-next. > > - Arnaldo > > On the Fedora 40 system: > > root@x1:~# perf test hwmon > root@x1:~# perf test 11 > 11: Hwmon PMU : > 11.1: Basic parsing test : Ok > 11.2: Parsing without PMU name : FAILED! > 11.3: Parsing with PMU name : FAILED! > root@x1:~# perf test -v 11 > 11: Hwmon PMU : > 11.1: Basic parsing test : Ok > 11.2: Parsing without PMU name : FAILED! > 11.3: Parsing with PMU name : FAILED! > root@x1:~# perf test -vv 11 > 11: Hwmon PMU : > 11.1: Basic parsing test: > --- start --- > test child forked, pid 406656 > hwmon_pmu: not a hwmon type 'badtype' in file name 'badtype5_baditem' > hwmon_pmu: not a hwmon item 'baditem' in file name 'humidity6_baditem' > ---- end(0) ---- > 11.1: Basic parsing test : Ok > 11.2: Parsing without PMU name: > --- start --- > test child forked, pid 406657 > Testing 'temp_test_hwmon_event1' > Using CPUID GenuineIntel-6-BA-3 > hwmon_pmu: not a hwmon file 'uevent' > Not a hwmon file 'uevent' > hwmon_pmu: not a hwmon file 'name' > Not a hwmon file 'name' > hwmon_pmu: not a hwmon file 'uevent' > Not a hwmon file 'uevent' > hwmon_pmu: not a hwmon file 'name' > Not a hwmon file 'name' > hwmon_pmu: not a hwmon file 'uevent' > Not a hwmon file 'uevent' > hwmon_pmu: not a hwmon file 'name' > Not a hwmon file 'name' > hwmon_pmu: not a hwmon file 'uevent' > Not a hwmon file 'uevent' > hwmon_pmu: not a hwmon file 'name' > Not a hwmon file 'name' > hwmon_pmu: not a hwmon file 'uevent' > Not a hwmon file 'uevent' > hwmon_pmu: not a hwmon file 'name' > Not a hwmon file 'name' > hwmon_pmu: not a hwmon file 'uevent' > Not a hwmon file 'uevent' > hwmon_pmu: not a hwmon file 'name' > Not a hwmon file 'name' > hwmon_pmu: not a hwmon file 'uevent' > Not a hwmon file 'uevent' > hwmon_pmu: not a hwmon file 'pwm1' > Not a hwmon file 'pwm1' > hwmon_pmu: not a hwmon file 'name' > Not a hwmon file 'name' > hwmon_pmu: removing event 'pwm1' that has no input file > hwmon_pmu: not a hwmon file 'uevent' > Not a hwmon file 'uevent' > hwmon_pmu: not a hwmon file 'name' > Not a hwmon file 'name' > hwmon_pmu: not a hwmon file 'uevent' > Not a hwmon file 'uevent' > hwmon_pmu: not a hwmon file 'name' > Not a hwmon file 'name' > FAILED tests/hwmon_pmu.c:160 failed to parse event 'temp_test_hwmon_event1', err 1 > event syntax error: 'temp_test_hwmon_event1' > \___ Bad event name > > Unable to find event on a PMU of 'temp_test_hwmon_event1' > free(): invalid pointer > > ---- unexpected signal (6) ---- > 11.2: Parsing without PMU name : FAILED! > 11.3: Parsing with PMU name: > --- start --- > test child forked, pid 406658 > Testing 'temp_test_hwmon_event1' > Using CPUID GenuineIntel-6-BA-3 > hwmon_pmu: not a hwmon file 'uevent' > Not a hwmon file 'uevent' > hwmon_pmu: not a hwmon file 'name' > Not a hwmon file 'name' > hwmon_pmu: not a hwmon file 'uevent' > Not a hwmon file 'uevent' > hwmon_pmu: not a hwmon file 'name' > Not a hwmon file 'name' > hwmon_pmu: not a hwmon file 'uevent' > Not a hwmon file 'uevent' > hwmon_pmu: not a hwmon file 'name' > Not a hwmon file 'name' > hwmon_pmu: not a hwmon file 'uevent' > Not a hwmon file 'uevent' > hwmon_pmu: not a hwmon file 'name' > Not a hwmon file 'name' > hwmon_pmu: not a hwmon file 'uevent' > Not a hwmon file 'uevent' > hwmon_pmu: not a hwmon file 'name' > Not a hwmon file 'name' > hwmon_pmu: not a hwmon file 'uevent' > Not a hwmon file 'uevent' > hwmon_pmu: not a hwmon file 'name' > Not a hwmon file 'name' > hwmon_pmu: not a hwmon file 'uevent' > Not a hwmon file 'uevent' > hwmon_pmu: not a hwmon file 'pwm1' > Not a hwmon file 'pwm1' > hwmon_pmu: not a hwmon file 'name' > Not a hwmon file 'name' > hwmon_pmu: removing event 'pwm1' that has no input file > hwmon_pmu: not a hwmon file 'uevent' > Not a hwmon file 'uevent' > hwmon_pmu: not a hwmon file 'name' > Not a hwmon file 'name' > hwmon_pmu: not a hwmon file 'uevent' > Not a hwmon file 'uevent' > hwmon_pmu: not a hwmon file 'name' > Not a hwmon file 'name' > FAILED tests/hwmon_pmu.c:160 failed to parse event 'temp_test_hwmon_event1', err 1 > event syntax error: 'temp_test_hwmon_event1' > \___ Bad event name > > Unable to find event on a PMU of 'temp_test_hwmon_event1' > > ---- unexpected signal (11) ---- > 11.3: Parsing with PMU name : FAILED! > root@x1:~# Still not clear to me why the test PMU isn't present and no warning was generated. If you could do the gdb, breakpoint on hwmon_pmu__have_event then that might help explain what's going on. Thanks, Ian
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