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[Jürg Häfliger <1836845@xxxxxxxxxxxxxxxxxx>]

** Tags added: kernel-daily-bug

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https://bugs.launchpad.net/bugs/1836845

Title:
  readahead02 in LTP syscall test failed with T kernel on P8 node

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

Bug description:
  This issue was only spotted on Trusty PowerPC (node "modoc"), test
  passed on AMD64 /ARM64 / i386 without any issue

  incrementing stop
  tst_device.c:231: INFO: Using test device LTP_DEV='/dev/loop0'
  tst_mkfs.c:90: INFO: Formatting /dev/loop0 with ext2 opts='' extra opts=''
  mke2fs 1.42.9 (4-Feb-2014)
  tst_test.c:1100: INFO: Timeout per run is 0h 05m 00s
  readahead02.c:388: INFO: readahead length: 2097152
  tst_fs_setup.c:43: INFO: readahead02.c:390: overlayfs is not configured in this kernel
  readahead02.c:226: INFO: Test #0: readahead on file
  readahead02.c:131: INFO: creating test file of size: 67108864
  readahead02.c:245: INFO: read_testfile(0)
  readahead02.c:256: INFO: read_testfile(1)
  readahead02.c:180: INFO: readahead calls made: 32
  readahead02.c:186: PASS: offset is still at 0 as expected
  readahead02.c:290: INFO: read_testfile(0) took: 358930 usec
  readahead02.c:291: INFO: read_testfile(1) took: 371130 usec
  readahead02.c:293: INFO: read_testfile(0) read: 67108864 bytes
  readahead02.c:295: INFO: read_testfile(1) read: 67108864 bytes
  readahead02.c:300: FAIL: readahead failed to save any I/O
  readahead02.c:306: INFO: cache can hold at least: 267968 kB
  readahead02.c:307: INFO: read_testfile(0) used cache: 140672 kB
  readahead02.c:308: INFO: read_testfile(1) used cache: 0 kB
  readahead02.c:318: FAIL: readahead failed to use any cache
  readahead02.c:226: INFO: Test #1: readahead on overlayfs file
  readahead02.c:230: CONF: overlayfs is not configured in this kernel.
  readahead02.c:226: INFO: Test #2: POSIX_FADV_WILLNEED on file
  readahead02.c:131: INFO: creating test file of size: 67108864
  readahead02.c:245: INFO: read_testfile(0)
  readahead02.c:256: INFO: read_testfile(1)
  readahead02.c:180: INFO: readahead calls made: 32
  readahead02.c:186: PASS: offset is still at 0 as expected
  readahead02.c:290: INFO: read_testfile(0) took: 412311 usec
  readahead02.c:291: INFO: read_testfile(1) took: 393508 usec
  readahead02.c:293: INFO: read_testfile(0) read: 67108864 bytes
  readahead02.c:295: INFO: read_testfile(1) read: 67108864 bytes
  readahead02.c:300: FAIL: readahead failed to save any I/O
  readahead02.c:306: INFO: cache can hold at least: 267968 kB
  readahead02.c:307: INFO: read_testfile(0) used cache: 130816 kB
  readahead02.c:308: INFO: read_testfile(1) used cache: 0 kB
  readahead02.c:318: FAIL: readahead failed to use any cache
  readahead02.c:226: INFO: Test #3: POSIX_FADV_WILLNEED on overlayfs file
  readahead02.c:230: CONF: overlayfs is not configured in this kernel.

  Summary:
  passed   2
  failed   4
  skipped  2
  warnings 0

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-170-generic 3.13.0-170.220
  ProcVersionSignature: Ubuntu 3.13.0-170.220-generic 3.13.11-ckt39
  Uname: Linux 3.13.0-170-generic ppc64le
  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'
  ApportVersion: 2.14.1-0ubuntu3.29
  Architecture: ppc64el
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  Date: Wed Jul 17 07:03:46 2019
  Lsusb:
   Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  PciMultimedia:
   
  ProcFB:
   
  ProcKernelCmdLine: root=/dev/mapper/mpath0-part2 ro console=hvc0
  ProcLoadAvg: 0.19 0.21 0.10 1/1046 4415
  ProcLocks:
   1: POSIX  ADVISORY  WRITE 3315 00:11:46209 0 EOF
   2: POSIX  ADVISORY  WRITE 3171 00:11:55417 0 EOF
   3: FLOCK  ADVISORY  WRITE 3236 00:11:45137 0 EOF
   4: FLOCK  ADVISORY  WRITE 2714 00:11:49169 0 EOF
   5: POSIX  ADVISORY  WRITE 3295 00:11:54337 0 EOF
  ProcSwaps:
   Filename				Type		Size	Used	Priority
   /swap.img                               file		8388544	0	-1
  ProcVersion: Linux version 3.13.0-170-generic (buildd@bos02-ppc64el-013) (gcc version 4.8.4 (Ubuntu 4.8.4-2ubuntu1~14.04.4) ) #220-Ubuntu SMP Thu May 9 12:44:25 UTC 2019
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-170-generic N/A
   linux-backports-modules-3.13.0-170-generic  N/A
   linux-firmware                              1.127.24
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  cpu_cores: Number of cores present = 20
  cpu_coreson: Number of cores online = 20
  cpu_dscr: DSCR is 0
  cpu_freq:
   min:	3.694 GHz (cpu 159)
   max:	3.694 GHz (cpu 1)
   avg:	3.694 GHz
  cpu_smt: SMT=8

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