Hello,

kernel test robot noticed "perf-test.perf.make.fail" on:

commit: d3ed44a7bee70b097709fe06f339c468489f16c9 ("[PATCH v3 12/12] perf jevents: Add load event json to verify and allow fallbacks")
url: https://github.com/intel-lab-lkp/linux/commits/Ian-Rogers/perf-jevents-Allow-multiple-metricgroups-json-files/20240314-135507
base: v6.8
patch link: https://lore.kernel.org/all/20240314055051.1960527-13-irogers@google.com/
patch subject: [PATCH v3 12/12] perf jevents: Add load event json to verify and allow fallbacks

in testcase: perf-test
version: perf-test-x86_64-git-1_20240223
with following parameters:

	type: lkp
	group: group-01



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)




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 <oliver.sang@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202403221000.c4617e93-oliver.sang@intel.com


please check attached stderr, more materials are in link [1]


Traceback (most recent call last):
  File "/usr/src/perf_selftests-x86_64-rhel-8.3-bpf-d3ed44a7bee70b097709fe06f339c468489f16c9/tools/perf/pmu-events/amd_metrics.py", line 42, in <module>
    main()
  File "/usr/src/perf_selftests-x86_64-rhel-8.3-bpf-d3ed44a7bee70b097709fe06f339c468489f16c9/tools/perf/pmu-events/amd_metrics.py", line 32, in main
    LoadEvents(directory)
  File "/usr/src/perf_selftests-x86_64-rhel-8.3-bpf-d3ed44a7bee70b097709fe06f339c468489f16c9/tools/perf/pmu-events/metric.py", line 26, in LoadEvents
    for x in json.load(open(f"{directory}/{filename}")):
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/json/__init__.py", line 293, in load
    return loads(fp.read(),
           ^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/json/__init__.py", line 346, in loads
    return _default_decoder.decode(s)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/json/decoder.py", line 337, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/json/decoder.py", line 355, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
make[3]: *** [pmu-events/Build:45: pmu-events/arch/x86/amdzen1/extra-metrics.json] Error 1
make[3]: *** Deleting file 'pmu-events/arch/x86/amdzen1/extra-metrics.json'
make[3]: *** Waiting for unfinished jobs....
Traceback (most recent call last):
  File "/usr/src/perf_selftests-x86_64-rhel-8.3-bpf-d3ed44a7bee70b097709fe06f339c468489f16c9/tools/perf/pmu-events/amd_metrics.py", line 42, in <module>
    main()
  File "/usr/src/perf_selftests-x86_64-rhel-8.3-bpf-d3ed44a7bee70b097709fe06f339c468489f16c9/tools/perf/pmu-events/amd_metrics.py", line 32, in main
    LoadEvents(directory)
  File "/usr/src/perf_selftests-x86_64-rhel-8.3-bpf-d3ed44a7bee70b097709fe06f339c468489f16c9/tools/perf/pmu-events/metric.py", line 26, in LoadEvents
    for x in json.load(open(f"{directory}/{filename}")):
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/json/__init__.py", line 293, in load
    return loads(fp.read(),
           ^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/json/__init__.py", line 346, in loads
    return _default_decoder.decode(s)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/json/decoder.py", line 337, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/json/decoder.py", line 355, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
make[3]: *** [pmu-events/Build:45: pmu-events/arch/x86/amdzen2/extra-metrics.json] Error 1
make[3]: *** Deleting file 'pmu-events/arch/x86/amdzen2/extra-metrics.json'
make[2]: *** [Makefile.perf:706: pmu-events/pmu-events-in.o] Error 2
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [Makefile.perf:261: sub-make] Error 2
make: *** [Makefile:70: all] Error 2



[1]
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20240322/202403221000.c4617e93-oliver.sang@intel.com



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https://github.com/intel/lkp-tests/wiki