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Message-ID: <Zzj6eoDDQbvZ25jX@x1>
Date: Sat, 16 Nov 2024 17:03:06 -0300
From: Arnaldo Carvalho de Melo <acme@...nel.org>
To: Ian Rogers <irogers@...gle.com>
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 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
---- 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:~#
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