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[Bug 2110639] [NEW] plucky: ubuntu_kernel_selftests:powerpc/security:entry_flush/rfi_flush flaky?

To: canonical-ubuntu-qa@xxxxxxxxxxxxxxxxxxx
From: Mehmet Basaran <2110639@xxxxxxxxxxxxxxxxxx>
Date: Wed, 14 May 2025 13:11:40 -0000
Reply-to: Bug 2110639 <2110639@xxxxxxxxxxxxxxxxxx>
Sender: noreply@xxxxxxxxxxxxx
Public bug reported:

For plucky 6.14.0-17.17 following tests failed on openstack:ppc64el-vm but passed after rerun.
powerpc/security:entry_flush
powerpc/security:rfi_flush

9717  22:23:46 INFO | START ubuntu_kernel_selftests.powerpc/security:rfi_flush ubuntu_kernel_selftests.powerpc/security:rfi_flush timeout=1800 timestamp=1746138226 localtime=May 01 22:23:46
9718  22:23:46 DEBUG| Persistent state client._record_indent now set to 2
9719  22:23:46 DEBUG| Persistent state client.unexpected_reboot now set to ('ubuntu_kernel_selftests.powerpc/security:rfi_flush', 'ubuntu_kernel_selftests.powerpc/security:rfi_flush')
9720  22:23:46 DEBUG| Waiting for pid 422772 for 1800 seconds
9721  22:23:46 WARNI| System python is too old, crash handling disabled
9722  22:23:46 DEBUG| Running 'make run_tests -C powerpc/security TEST_PROGS=rfi_flush TEST_GEN_PROGS='' TEST_CUSTOM_PROGS='''
9723  22:23:46 DEBUG| [stdout] make: Entering directory '/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/powerpc/security'
9724  22:23:46 ERROR| [stderr] fatal: not a git repository (or any of the parent directories): .git
9725  22:23:46 DEBUG| [stdout] TAP version 13
9726  22:23:46 DEBUG| [stdout] 1..1
9727  22:23:46 DEBUG| [stdout] # timeout set to 130
9728  22:23:46 DEBUG| [stdout] # selftests: powerpc/security: rfi_flush
9729  22:23:46 DEBUG| [stdout] # test: rfi_flush_test
9730  22:23:46 DEBUG| [stdout] # tags: git_version:unknown
9731  22:23:47 DEBUG| [stdout] # FAIL (L1D misses with rfi_flush=1: 190110472 < 190000000) [4/10 failures]
9732  22:23:47 DEBUG| [stdout] # PASS (L1D misses with rfi_flush=0: 24281308 < 95000000) [10/10 pass]
9733  22:23:47 DEBUG| [stdout] # failure: rfi_flush_test
9734  22:23:47 DEBUG| [stdout] not ok 1 selftests: powerpc/security: rfi_flush # exit=1
9735  22:23:47 DEBUG| [stdout] make: Leaving directory '/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/powerpc/


9717  22:23:46 INFO | START ubuntu_kernel_selftests.powerpc/security:rfi_flush ubuntu_kernel_selftests.powerpc/security:rfi_flush timeout=1800 timestamp=1746138226 localtime=May 01 22:23:46
9718  22:23:46 DEBUG| Persistent state client._record_indent now set to 2
9719  22:23:46 DEBUG| Persistent state client.unexpected_reboot now set to ('ubuntu_kernel_selftests.powerpc/security:rfi_flush', 'ubuntu_kernel_selftests.powerpc/security:rfi_flush')
9720  22:23:46 DEBUG| Waiting for pid 422772 for 1800 seconds
9721  22:23:46 WARNI| System python is too old, crash handling disabled
9722  22:23:46 DEBUG| Running 'make run_tests -C powerpc/security TEST_PROGS=rfi_flush TEST_GEN_PROGS='' TEST_CUSTOM_PROGS='''
9723  22:23:46 DEBUG| [stdout] make: Entering directory '/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/powerpc/security'
9724  22:23:46 ERROR| [stderr] fatal: not a git repository (or any of the parent directories): .git
9725  22:23:46 DEBUG| [stdout] TAP version 13
9726  22:23:46 DEBUG| [stdout] 1..1
9727  22:23:46 DEBUG| [stdout] # timeout set to 130
9728  22:23:46 DEBUG| [stdout] # selftests: powerpc/security: rfi_flush
9729  22:23:46 DEBUG| [stdout] # test: rfi_flush_test
9730  22:23:46 DEBUG| [stdout] # tags: git_version:unknown
9731  22:23:47 DEBUG| [stdout] # FAIL (L1D misses with rfi_flush=1: 190110472 < 190000000) [4/10 failures]
9732  22:23:47 DEBUG| [stdout] # PASS (L1D misses with rfi_flush=0: 24281308 < 95000000) [10/10 pass]
9733  22:23:47 DEBUG| [stdout] # failure: rfi_flush_test
9734  22:23:47 DEBUG| [stdout] not ok 1 selftests: powerpc/security: rfi_flush # exit=1
9735  22:23:47 DEBUG| [stdout] make: Leaving directory '/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/powerpc/security'

** Affects: ubuntu-kernel-tests
     Importance: Undecided
         Status: New

** Summary changed:

- plucky: ubuntu_kernel_selftests:powerpc/security:entry_flush flaky?
+ plucky: ubuntu_kernel_selftests:powerpc/security:entry_flush/rfi_flush flaky?

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https://bugs.launchpad.net/bugs/2110639

Title:
  plucky: ubuntu_kernel_selftests:powerpc/security:entry_flush/rfi_flush
  flaky?

Status in ubuntu-kernel-tests:
  New

Bug description:
  For plucky 6.14.0-17.17 following tests failed on openstack:ppc64el-vm but passed after rerun.
  powerpc/security:entry_flush
  powerpc/security:rfi_flush

  9717  22:23:46 INFO | START ubuntu_kernel_selftests.powerpc/security:rfi_flush ubuntu_kernel_selftests.powerpc/security:rfi_flush timeout=1800 timestamp=1746138226 localtime=May 01 22:23:46
  9718  22:23:46 DEBUG| Persistent state client._record_indent now set to 2
  9719  22:23:46 DEBUG| Persistent state client.unexpected_reboot now set to ('ubuntu_kernel_selftests.powerpc/security:rfi_flush', 'ubuntu_kernel_selftests.powerpc/security:rfi_flush')
  9720  22:23:46 DEBUG| Waiting for pid 422772 for 1800 seconds
  9721  22:23:46 WARNI| System python is too old, crash handling disabled
  9722  22:23:46 DEBUG| Running 'make run_tests -C powerpc/security TEST_PROGS=rfi_flush TEST_GEN_PROGS='' TEST_CUSTOM_PROGS='''
  9723  22:23:46 DEBUG| [stdout] make: Entering directory '/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/powerpc/security'
  9724  22:23:46 ERROR| [stderr] fatal: not a git repository (or any of the parent directories): .git
  9725  22:23:46 DEBUG| [stdout] TAP version 13
  9726  22:23:46 DEBUG| [stdout] 1..1
  9727  22:23:46 DEBUG| [stdout] # timeout set to 130
  9728  22:23:46 DEBUG| [stdout] # selftests: powerpc/security: rfi_flush
  9729  22:23:46 DEBUG| [stdout] # test: rfi_flush_test
  9730  22:23:46 DEBUG| [stdout] # tags: git_version:unknown
  9731  22:23:47 DEBUG| [stdout] # FAIL (L1D misses with rfi_flush=1: 190110472 < 190000000) [4/10 failures]
  9732  22:23:47 DEBUG| [stdout] # PASS (L1D misses with rfi_flush=0: 24281308 < 95000000) [10/10 pass]
  9733  22:23:47 DEBUG| [stdout] # failure: rfi_flush_test
  9734  22:23:47 DEBUG| [stdout] not ok 1 selftests: powerpc/security: rfi_flush # exit=1
  9735  22:23:47 DEBUG| [stdout] make: Leaving directory '/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/powerpc/

  
  9717  22:23:46 INFO | START ubuntu_kernel_selftests.powerpc/security:rfi_flush ubuntu_kernel_selftests.powerpc/security:rfi_flush timeout=1800 timestamp=1746138226 localtime=May 01 22:23:46
  9718  22:23:46 DEBUG| Persistent state client._record_indent now set to 2
  9719  22:23:46 DEBUG| Persistent state client.unexpected_reboot now set to ('ubuntu_kernel_selftests.powerpc/security:rfi_flush', 'ubuntu_kernel_selftests.powerpc/security:rfi_flush')
  9720  22:23:46 DEBUG| Waiting for pid 422772 for 1800 seconds
  9721  22:23:46 WARNI| System python is too old, crash handling disabled
  9722  22:23:46 DEBUG| Running 'make run_tests -C powerpc/security TEST_PROGS=rfi_flush TEST_GEN_PROGS='' TEST_CUSTOM_PROGS='''
  9723  22:23:46 DEBUG| [stdout] make: Entering directory '/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/powerpc/security'
  9724  22:23:46 ERROR| [stderr] fatal: not a git repository (or any of the parent directories): .git
  9725  22:23:46 DEBUG| [stdout] TAP version 13
  9726  22:23:46 DEBUG| [stdout] 1..1
  9727  22:23:46 DEBUG| [stdout] # timeout set to 130
  9728  22:23:46 DEBUG| [stdout] # selftests: powerpc/security: rfi_flush
  9729  22:23:46 DEBUG| [stdout] # test: rfi_flush_test
  9730  22:23:46 DEBUG| [stdout] # tags: git_version:unknown
  9731  22:23:47 DEBUG| [stdout] # FAIL (L1D misses with rfi_flush=1: 190110472 < 190000000) [4/10 failures]
  9732  22:23:47 DEBUG| [stdout] # PASS (L1D misses with rfi_flush=0: 24281308 < 95000000) [10/10 pass]
  9733  22:23:47 DEBUG| [stdout] # failure: rfi_flush_test
  9734  22:23:47 DEBUG| [stdout] not ok 1 selftests: powerpc/security: rfi_flush # exit=1
  9735  22:23:47 DEBUG| [stdout] make: Leaving directory '/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/powerpc/security'

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