[LTP] LTP: perf_event_open02 failed intermittently

[Naresh Kamboju]

perf_event_open02 is an intermittent failures on linux-mainline on
Juno, x15 and x86_64 and this failure is not specific to any kernel
version. We have seen this failures on 4.14, 4.9 and 4.4 kernel.

History of test,
https://qa-reports.linaro.org/lkft/linux-mainline-oe/tests/ltp-syscalls-tests/perf_event_open02

Test log on x86_64
------------------
perf_event_open02    0  TINFO  :  overall task clock: 30671523
perf_event_open02    0  TINFO  :  hw sum: 2709582012, task clock sum: 276075072
perf_event_open02    0  TINFO  :  ratio: 9.001023
perf_event_open02    1  TFAIL  :  perf_event_open02.c:333: test failed
(ratio was greater than )

LAVA job id:
https://lkft.validation.linaro.org/scheduler/job/111546#L11603

Test log on Juno
----------------
perf_event_open02    0  TINFO  :  overall task clock: 189268240
perf_event_open02    0  TINFO  :  hw sum: 573229827, task clock sum: 407820520
perf_event_open02    0  TINFO  :  ratio: 2.154722
perf_event_open02    1  TFAIL  :  perf_event_open02.c:333: test failed
(ratio was greater than )

LTP full log on arm64 Juno,

https://lkft.validation.linaro.org/scheduler/job/112567#L11871

Please refer open bug on bugzilla,
https://bugs.linaro.org/show_bug.cgi?id=3382

Have you seen this intermittent failure before ?

Best regards
Naresh Kamboju