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[Jürg Häfliger <1909521@xxxxxxxxxxxxxxxxxx>]

** Tags added: kernel-daily-bug

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https://bugs.launchpad.net/bugs/1909521

Title:
  ftrace test from ubuntu_kernel_selftests timeout on F-5.8 P8

Status in ubuntu-kernel-tests:
  Won't Fix
Status in linux-signed-hwe-5.8 package in Ubuntu:
  Won't Fix

Bug description:
  Issue found on Focal 5.8.0-33, with P8 node dryden
  The ftracetest will timeout with:
      [17] event tracing - enable/disable with subsystem level files

  
  $ sudo ./ftracetest 
  === Ftrace unit tests ===
  [1] Basic trace file check	[PASS]
  [2] Basic test for tracers	[PASS]
  [3] Basic trace clock test	[PASS]
  [4] Basic event tracing check	[PASS]
  [5] Change the ringbuffer size	[PASS]
  [6] Snapshot and tracing setting	[PASS]
  [7] trace_pipe and trace_marker	[PASS]
  [8] Test ftrace direct functions against tracers	[UNRESOLVED]
  [9] Test ftrace direct functions against kprobes	[UNRESOLVED]
  [10] Generic dynamic event - add/remove kprobe events	[PASS]
  [11] Generic dynamic event - add/remove synthetic events	[PASS]
  [12] Generic dynamic event - selective clear (compatibility)	[PASS]
  [13] Generic dynamic event - generic clear event	[PASS]
  [14] event tracing - enable/disable with event level files	[PASS]
  [15] event tracing - restricts events based on pid notrace filtering	[PASS]
  [16] event tracing - restricts events based on pid	[PASS]
  [17] event tracing - enable/disable with subsystem level files
  (test timeout here)

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: linux-image-5.8.0-33-generic 5.8.0-33.36~20.04.1
  ProcVersionSignature: User Name 5.8.0-33.36~20.04.1-generic 5.8.17
  Uname: Linux 5.8.0-33-generic ppc64le
  .sys.firmware.opal.msglog: Error: [Errno 13] Permission denied: '/sys/firmware/opal/msglog'
  ApportVersion: 2.20.11-0ubuntu27.12
  Architecture: ppc64el
  CasperMD5CheckResult: skip
  Date: Tue Dec 29 05:11:04 2020
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=C.UTF-8
   SHELL=/bin/bash
  ProcLoadAvg: 1.19 1.24 2.68 3/1472 929062
  ProcLocks:
   1: POSIX  ADVISORY  WRITE 2447 00:19:576 0 EOF
   2: POSIX  ADVISORY  WRITE 2720 00:19:597 0 EOF
   3: FLOCK  ADVISORY  WRITE 2685 00:19:647 0 EOF
  ProcSwaps:
   Filename				Type		Size		Used		Priority
   /swap.img                               file		8388544		0		-2
  ProcVersion: Linux version 5.8.0-33-generic (buildd@bos02-ppc64el-009) (gcc (User Name 9.3.0-17ubuntu1~20.04) 9.3.0, GNU ld (GNU Binutils for User Name) 2.34) #36~20.04.1-User Name SMP Wed Dec 9 16:57:18 UTC 2020
  SourcePackage: linux-signed-hwe-5.8
  UpgradeStatus: No upgrade log present (probably fresh install)
  VarLogDump_list: total 0
  cpu_cores: Number of cores present = 20
  cpu_coreson: Number of cores online = 20
  cpu_smt: SMT=8

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