canonical-ubuntu-qa team mailing list archive

[Jürg Häfliger <1822274@xxxxxxxxxxxxxxxxxx>]

** Tags added: kernel-daily-bug

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https://bugs.launchpad.net/bugs/1822274

Title:
  9e622d6bea0202e9fe267955362c01918562c09b in ubuntu_btrfs_kernel_fixes
  timeouted on B/C P9

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

Bug description:
  This test will timeout on our P9 node "baltar" (it's the most time-
  consuming job)

  A manual run shows that the sysbench command in this test will take
  about 2 hours to complete:

  # sysbench --num-threads=1 --test=fileio --file-num=81920 --file-total-size=80M --file-block-size=1K --file-io-mode=sync --file-test-mode=seqwr prepare
  ...
  ...
  ...
  Creating file test_file.81917
  Creating file test_file.81918
  Creating file test_file.81919
  83886080 bytes written in 7231.40 seconds (0.01 MiB/sec).
  #

  And our timeout threshold is exactly 2 hours. An easy fix for this is to bump the threshold.
  But it's weird that this test only fail on Bionic 4.15.

  Here is the performance matrix for how long does it take for this test to execute:
  * Bionic 4.18 - 90 minutes
  * Disco 5.0 - 99 minutes

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: linux-image-4.15.0-46-generic 4.15.0-46.49
  ProcVersionSignature: Ubuntu 4.15.0-46.49-generic 4.15.18
  Uname: Linux 4.15.0-46-generic ppc64le
  AlsaDevices:
   total 0
   crw-rw---- 1 root audio 116,  1 Mar 29 07:04 seq
   crw-rw---- 1 root audio 116, 33 Mar 29 07:04 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
  ApportVersion: 2.20.9-0ubuntu7.6
  Architecture: ppc64el
  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:
  CurrentDmesg:

  Date: Fri Mar 29 09:55:09 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 0451:80ff Texas Instruments, Inc.
   Bus 001 Device 004: ID 0557:2419 ATEN International Co., Ltd
   Bus 001 Device 002: ID 0557:7000 ATEN International Co., Ltd Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  PciMultimedia:

  ProcFB: 0 astdrmfb
  ProcKernelCmdLine: root=UUID=acd1a0d7-f6fc-4130-928c-c8b11ad6e4be ro console=hvc0
  ProcLoadAvg: 0.09 0.04 0.27 1/1367 5463
  ProcLocks:
   1: FLOCK  ADVISORY  WRITE 3539 00:17:524 0 EOF
   2: POSIX  ADVISORY  WRITE 3875 00:17:602 0 EOF
   3: FLOCK  ADVISORY  WRITE 3912 00:17:598 0 EOF
   4: POSIX  ADVISORY  WRITE 3902 00:17:580 0 EOF
   5: POSIX  ADVISORY  WRITE 1820 00:17:373 0 EOF
  ProcSwaps:
   Filename				Type		Size	Used	Priority
   /swap.img                               file		8388544	0	-2
  ProcVersion: Linux version 4.15.0-46-generic (buildd@bos02-ppc64el-009) (gcc version 7.3.0 (Ubuntu 7.3.0-16ubuntu3)) #49-Ubuntu SMP Wed Feb 6 09:32:48 UTC 2019
  RelatedPackageVersions:
   linux-restricted-modules-4.15.0-46-generic N/A
   linux-backports-modules-4.15.0-46-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)
  VarLogDump_list: total 0
  cpu_cores: Number of cores present = 40
  cpu_coreson: Number of cores online = 40
  cpu_dscr: DSCR is 16
  cpu_freq:
   min:	2.862 GHz (cpu 159)
   max:	2.862 GHz (cpu 1)
   avg:	2.862 GHz
  cpu_runmode:
   Could not retrieve current diagnostics mode,
   No kernel interface to firmware
  cpu_smt: SMT=4

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