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[Jürg Häfliger <1812836@xxxxxxxxxxxxxxxxxx>]

** Tags added: kernel-daily-bug

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https://bugs.launchpad.net/bugs/1812836

Title:
  Multiple failures reported in ftrace from ubuntu_kernel_selftests on B
  s390x

Status in ubuntu-kernel-tests:
  Fix Released
Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Bionic:
  Fix Released

Bug description:
  [11] ftrace - function glob filters	[FAIL]
  [23] Kprobe event argument syntax	[FAIL]
  [36] event trigger - test histogram trigger	[FAIL]
  [51] (instance)  event trigger - test histogram trigger	[FAIL]

  
  === 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] event tracing - enable/disable with event level files	[PASS]
  [6] event tracing - restricts events based on pid	[PASS]
  [7] event tracing - enable/disable with subsystem level files	[PASS]
  [8] event tracing - enable/disable with top level files	[PASS]
  [9] ftrace - function graph filters with stack tracer	[PASS]
  [10] ftrace - function graph filters	[PASS]
  [11] ftrace - function glob filters	[FAIL]
  [12] ftrace - function pid filters	[PASS]
  [13] ftrace - test for function event triggers	[PASS]
  [14] ftrace - function profiler with function tracing	[PASS]
  [15] ftrace - test reading of set_ftrace_filter	[PASS]
  [16] ftrace - test for function traceon/off triggers	[PASS]
  [17] Test creation and deletion of trace instances while setting an event	[PASS]
  [18] Test creation and deletion of trace instances	[PASS]
  [19] Kprobe dynamic event - adding and removing	[PASS]
  [20] Kprobe dynamic event - busy event check	[PASS]
  [21] Kprobe dynamic event with arguments	[PASS]
  [22] Kprobe event string type argument	[UNTESTED]
  [23] Kprobe event argument syntax	[FAIL]
  [24] Kprobes event arguments with types	[PASS]
  [25] Kprobe event auto/manual naming	[PASS]
  [26] Kprobe dynamic event with function tracer	[PASS]
  [27] Kprobe dynamic event - probing module	[PASS]
  [28] Kretprobe dynamic event with arguments	[PASS]
  [29] Kretprobe dynamic event with maxactive	[PASS]
  [30] Register/unregister many kprobe events	[PASS]
  [31] Kprobe events - probe points	[PASS]
  [32] event trigger - test multiple actions on hist trigger	[UNSUPPORTED]
  [33] event trigger - test event enable/disable trigger	[PASS]
  [34] event trigger - test trigger filter	[PASS]
  [35] event trigger - test histogram modifiers	[PASS]
  [36] event trigger - test histogram trigger	[FAIL]
  [37] event trigger - test multiple histogram triggers	[PASS]
  [38] event trigger - test snapshot-trigger	[PASS]
  [39] event trigger - test stacktrace-trigger	[PASS]
  [40] event trigger - test traceon/off trigger	[PASS]
  [41] (instance)  Basic test for tracers	[PASS]
  [42] (instance)  Basic trace clock test	[PASS]
  [43] (instance)  event tracing - enable/disable with event level files	[PASS]
  [44] (instance)  event tracing - restricts events based on pid	[PASS]
  [45] (instance)  event tracing - enable/disable with subsystem level files	[PASS]
  [46] (instance)  ftrace - test for function event triggers	[PASS]
  [47] (instance)  ftrace - test for function traceon/off triggers	[PASS]
  [48] (instance)  event trigger - test event enable/disable trigger	[PASS]
  [49] (instance)  event trigger - test trigger filter	[PASS]
  [50] (instance)  event trigger - test histogram modifiers	[PASS]
  [51] (instance)  event trigger - test histogram trigger	[FAIL]
  [52] (instance)  event trigger - test multiple histogram triggers	[PASS]

  # of passed:  46
  # of failed:  4
  # of unresolved:  0
  # of untested:  1
  # of unsupported:  1
  # of xfailed:  0
  # of undefined(test bug):  0

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: linux-image-4.15.0-44-generic 4.15.0-44.47
  ProcVersionSignature: Ubuntu 4.15.0-44.47-generic 4.15.18
  Uname: Linux 4.15.0-44-generic s390x
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  AlsaDevices: Error: command ['ls', '-l', '/dev/snd/'] failed with exit code 2: ls: cannot access '/dev/snd/': No such file or directory
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
  ApportVersion: 2.20.9-0ubuntu7.5
  Architecture: s390x
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord'
  CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
  CurrentDmesg:
   
  Date: Tue Jan 22 09:36:38 2019
  HibernationDevice: RESUME=UUID=caaee9b2-6bc1-4c8e-b26c-69038c092091
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig'
  Lspci:
   
  Lsusb: Error: command ['lsusb'] failed with exit code 1:
  PciMultimedia:
   
  ProcFB: Error: [Errno 2] No such file or directory: '/proc/fb'
  ProcKernelCmdLine: root=UUID=c7d7bbcb-a039-4ead-abfe-7672dea0add4 crashkernel=196M
  RelatedPackageVersions:
   linux-restricted-modules-4.15.0-44-generic N/A
   linux-backports-modules-4.15.0-44-generic  N/A
   linux-firmware                             1.173.3
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)

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