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[Bug 1939127] Re: ubuntu_kernel_selftests:powerpc:subpage_prot_anon: Failed with 3072 errors on Bionic 4.15 P9

To: canonical-ubuntu-qa@xxxxxxxxxxxxxxxxxxx
From: Jürg Häfliger <1939127@xxxxxxxxxxxxxxxxxx>
Date: Sat, 19 Apr 2025 00:14:00 -0000
Reply-to: Bug 1939127 <1939127@xxxxxxxxxxxxxxxxxx>
Sender: noreply@xxxxxxxxxxxxx

** Tags added: kernel-daily-bug

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https://bugs.launchpad.net/bugs/1939127

Title:
  ubuntu_kernel_selftests:powerpc:subpage_prot_anon: Failed with 3072
  errors on Bionic 4.15 P9

Status in ubuntu-kernel-tests:
  New
Status in The Ubuntu-power-systems project:
  Incomplete
Status in linux package in Ubuntu:
  Incomplete
Status in linux source package in Bionic:
  Incomplete

Bug description:
  On host baltar with bionic:linux 4.15 for 2021.07.19 (but already same
  in prev cycle):

  ...
  [stdout] Failed at 0x72353a232000 (p=1023,sp=2,w=0), want=fault, got=pass !
  [stdout] Failed at 0x72353a232000 (p=1023,sp=2,w=1), want=fault, got=pass !
  [stdout] 3072 errors detected
  [stdout] failure: subpage_prot_anon
  [stdout] not ok 1..2 selftests:  subpage_prot [FAIL]

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