This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
bionic' to 'verification-done-bionic'. If the problem still exists,
change the tag 'verification-needed-bionic' to 'verification-failed-

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

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to enable and use -proposed. Thank you!

** Tags added: verification-needed-bionic

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  raw_skew in timer from the ubuntu_kernel_selftests failed on Bionic

Status in ubuntu-kernel-tests:
Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Released
Status in linux source package in Bionic:
  Fix Committed
Status in linux source package in Cosmic:
  Fix Released
Status in linux source package in Disco:
  Fix Released

Bug description:

  autopkgtest failure during test for linux pkg.

  ADJ_OFFSET during test causes skew, and test to fail.

  [test case]

  this only happens intermittently, but frequently on the autopkgtests.

  when it happens it looks like:

  20:46:54 DEBUG| [stdout] WARNING: ADJ_OFFSET in progress, this will cause 
inaccurate results
  20:48:54 DEBUG| [stdout] Estimating clock drift: 16.881(est) 27.184(act)      

  when it happens with a patched kernel it looks like:

  01:04:35 DEBUG| [stdout] WARNING: ADJ_OFFSET in progress, this will cause 
inaccurate results
  01:06:35 DEBUG| [stdout] Estimating clock drift: 14.52(est) 13.641(act)       

  [regression potential]

  since this skips the test in question, it might miss an actual
  regression that the test should have caught; however, since ADJ_OFFSET
  is not always in progress during the test, if a real regression
  happens for this test, then it should correctly fail for test runs
  which have no concurrent ADJ_OFFSET and thus don't skip the test.

  [other info]

  original description:

  This issue cannot be reproduced across all of our SUTs, issue found on node 
secchi (3 out of 3).
  And sometimes on node amaura (2 out of 4)

  selftests: raw_skew
  WARNING: ADJ_OFFSET in progress, this will cause inaccurate results
  Estimating clock drift: 29.255(est) 30.529(act)       [FAILED]
  Bail out!
  Pass 0 Fail 0 Xfail 0 Xpass 0 Skip 0 Error 0
  not ok 1..7 selftests:  raw_skew [FAIL]

  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 x86_64
   total 0
   crw-rw---- 1 root audio 116,  1 Jan 10 03:58 seq
   crw-rw---- 1 root audio 116, 33 Jan 10 03:58 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
  ApportVersion: 2.20.9-0ubuntu7.5
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  Date: Thu Jan 10 06:25:41 2019
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig'
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0b1f:03e9 Insyde Software Corp.
   Bus 001 Device 002: ID 0000:0001
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Intel Corporation S2600WFT

  ProcFB: 0 astdrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-43-generic 
root=UUID=9210e07a-fd34-474c-b77e-f7508f27e234 ro console=ttyS0,115200n8
   linux-restricted-modules-4.15.0-43-generic N/A
   linux-backports-modules-4.15.0-43-generic  N/A
   linux-firmware                             1.173.2
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install) 10/12/2016
  dmi.bios.vendor: Intel Corporation
  dmi.bios.version: SE5C620.86B.01.00.0294.101220161543
  dmi.board.asset.tag: Base Board Asset Tag S2600WFT
  dmi.board.vendor: Intel Corporation
  dmi.board.version: H48104-410
  dmi.chassis.asset.tag: ....................
  dmi.chassis.type: 23
  dmi.chassis.vendor: ...............................
  dmi.chassis.version: ..................
dmi:bvnIntelCorporation:bvrSE5C620.86B.01.00.0294.101220161543:bd10/12/2016:svnIntelCorporation:pnS2600WFT:pvr....................:rvnIntelCorporation:rnS2600WFT:rvrH48104-410:cvn...............................:ct23:cvr..................: Family S2600WFT
  dmi.product.version: ....................
  dmi.sys.vendor: Intel Corporation

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