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[Bug 1811194] Re: raw_skew in timer from the ubuntu_kernel_selftests failed on Bionic

 

I believe this is fixed (worked around, by skipping the test when
ADJ_OFFSET is detected) by upstream commit
1416270f4a1ae83ea84156ceba19a66a8f88be1f:

commit 1416270f4a1ae83ea84156ceba19a66a8f88be1f
Author: John Stultz <john.stultz@xxxxxxxxxx>
Date:   Tue May 29 19:12:18 2018 -0700

    selftest: timers: Tweak raw_skew to SKIP when ADJ_OFFSET/other clock
adjustments are in progress


This commit is included upstream in v4.19, already included in cosmic (and disco) via bug 1794597, already included in xenial via bug 1798587.

Does not appear that it's in bionic yet.

** Also affects: linux (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Also affects: linux (Ubuntu Disco)
   Importance: Undecided
       Status: Confirmed

** Also affects: linux (Ubuntu Cosmic)
   Importance: Undecided
       Status: New

** Changed in: linux (Ubuntu Disco)
       Status: Confirmed => Fix Released

** Changed in: linux (Ubuntu Cosmic)
       Status: New => Fix Released

** Changed in: linux (Ubuntu Xenial)
       Status: New => Fix Released

** Changed in: linux (Ubuntu Bionic)
       Status: New => In Progress

** Changed in: linux (Ubuntu Bionic)
   Importance: Undecided => Low

** Changed in: linux (Ubuntu Bionic)
     Assignee: (unassigned) => Dan Streetman (ddstreet)

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https://bugs.launchpad.net/bugs/1811194

Title:
  raw_skew in timer from the ubuntu_kernel_selftests failed on Bionic

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

Bug 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
  1..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
  AlsaDevices:
   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': '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'
  Lsusb:
   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
  PciMultimedia:

  ProcFB: 0 astdrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-43-generic root=UUID=9210e07a-fd34-474c-b77e-f7508f27e234 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                             1.173.2
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 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
  dmi.board.name: 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.modalias: dmi:bvnIntelCorporation:bvrSE5C620.86B.01.00.0294.101220161543:bd10/12/2016:svnIntelCorporation:pnS2600WFT:pvr....................:rvnIntelCorporation:rnS2600WFT:rvrH48104-410:cvn...............................:ct23:cvr..................:
  dmi.product.family: Family
  dmi.product.name: S2600WFT
  dmi.product.version: ....................
  dmi.sys.vendor: Intel Corporation

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