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[Bug 2071861] Re: ftrace:test.d--event--subsystem-enable.tc fails on some instances

 

I can see this issue on:
 * F-aws-5.15.0-1065.71~20.04.1 (2024.06.10) AMD64 instance m5a.large
 * J-aws-5.15.0-1065.71 (2024.06.10) AMD64 instance m5a.large
 * J-ibm-gt 5.15.0-1067.70 (2024.06.10) AMD64 instance on openstack cloud.
As well.

** Tags added: 5.15 aws gcp jammy ubuntu-kselftests-ftrace

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https://bugs.launchpad.net/bugs/2071861

Title:
  ftrace:test.d--event--subsystem-enable.tc fails on some instances

Status in ubuntu-kernel-tests:
  New

Bug description:
  In the 2024.06.10 SRU cycle, the ftrace:test.d--event--subsystem-
  enable.tc testcases from ubuntu_kselftests_ftrace are failing:

  === Ftrace unit tests ===
  [1] event tracing - enable/disable with subsystem level files   [FAIL]
  [2] (instance)  event tracing - enable/disable with subsystem level files       [FAIL]

  
  # of passed:  0
  # of failed:  2
  # of unresolved:  0
  # of untested:  0
  # of unsupported:  0
  # of xfailed:  0
  # of undefined(test bug):  0

  The relevant part from the verbose output is `fail at least fork, exec
  and exit events should be recorded`

  This was found on these kernels:
  - j:aws-fips version 5.15.0-1065.71+fips1 on the m5a.large instance.
  - j:gcp-fips version 5.15.0-1064.72+fips1 on the n2d-standard-2 instance.

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References