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[Jürg Häfliger <1812645@xxxxxxxxxxxxxxxxxx>]

*** This bug is a duplicate of bug 1825780 ***
    https://bugs.launchpad.net/bugs/1825780

** Tags added: kernel-daily-bug

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https://bugs.launchpad.net/bugs/1812645

Title:
  Kprobe event string type argument in ftrace from
  ubuntu_kernel_selftests failed on B i386

Status in ubuntu-kernel-tests:
  New
Status in linux package in Ubuntu:
  Confirmed
Status in linux source package in Bionic:
  New
Status in linux source package in Cosmic:
  New

Bug description:
  This test in ftace:
      Kprobe event string type argument	[FAIL]
  failed with Bionic kernel on i386 (passed on other arches)

  
  $ 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] 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	[PASS]
  [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	[FAIL]
  [23] Kprobe event argument syntax	[PASS]
  [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	[PASS]
  [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	[PASS]
  [52] (instance)  event trigger - test multiple histogram triggers	[PASS]

  # of passed:  50
  # of failed:  1
  # of unresolved:  0
  # of untested:  0
  # of unsupported:  1
  # of xfailed:  0
  # of undefined(test bug):  0

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: linux-image-4.15.0-43-generic 4.15.0-43.46
  ProcVersionSignature: User Name 4.15.0-43.46-generic 4.15.18
  Uname: Linux 4.15.0-43-generic i686
  AlsaDevices:
   total 0
   crw-rw---- 1 root audio 116,  1 Jan 21 10:52 seq
   crw-rw---- 1 root audio 116, 33 Jan 21 10:52 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
  ApportVersion: 2.20.9-0ubuntu7.5
  Architecture: i386
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  Date: Mon Jan 21 11:21:48 2019
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig'
  MachineType: Dell Inc. PowerEdge R310
  PciMultimedia:
   
  ProcFB: 0 mgadrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-43-generic root=UUID=6aaa11f6-d386-4c0c-b4b8-38e6c408980a ro console=ttyS0,115200n8
  RelatedPackageVersions:
   linux-restricted-modules-4.15.0-43-generic N/A
   linux-backports-modules-4.15.0-43-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)
  dmi.bios.date: 09/18/2012
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.11.0
  dmi.board.name: 05XKKK
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A05
  dmi.chassis.type: 23
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvr1.11.0:bd09/18/2012:svnDellInc.:pnPowerEdgeR310:pvr:rvnDellInc.:rn05XKKK:rvrA05:cvnDellInc.:ct23:cvr:
  dmi.product.name: PowerEdge R310
  dmi.sys.vendor: Dell Inc.

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