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[Jürg Häfliger <1941856@xxxxxxxxxxxxxxxxxx>]

** Tags added: kernel-daily-bug

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https://bugs.launchpad.net/bugs/1941856

Title:
  cpuacct_100_100 from ubuntu_ltp/controllers fails on s390x

Status in ubuntu-kernel-tests:
  Fix Released
Status in linux package in Ubuntu:
  Invalid

Bug description:
  cpuacct_100_100 even with recent fixes (lp:1829978) fails on:
   - s2lp3.s390x.lpar with bionic/linux-fips/4.15.0-1069.78
   - kernel02.s390x.zvm with bionic/linux/4.15.0-154.161

  Passes on:
   - s2lp3.s390x.lpar with bionic/linux/4.15.0-154.161

  Failing logs:
  196527   10:03:40 DEBUG| [stdout] cpuacct 1 TINFO: timeout per run is 0h 5m 0s
  196528   10:03:40 DEBUG| [stdout] /opt/ltp/testcases/bin/cpuacct.sh: 83: [: Illegal number: infinity
  196529   10:03:40 DEBUG| [stdout] cpuacct 1 TINFO: task limit fulfilled (approximate need 10100, limit infinity)
  196530   10:03:40 DEBUG| [stdout] cpuacct 1 TINFO: memory requirements fulfilled (approximate need 1638400 kB, free 2711056 kB)
  196531   10:03:40 DEBUG| [stdout] cpuacct 1 TINFO: cpuacct: /sys/fs/cgroup/cpu,cpuacct
  196532   10:03:40 DEBUG| [stdout] cpuacct 1 TINFO: Creating 100 subgroups each with 100 processes
  196533   10:03:40 DEBUG| [stdout] /opt/ltp/testcases/bin/cpuacct.sh: 0: /opt/ltp/testcases/bin/cpuacct.sh: Cannot fork
  196534   10:03:40 DEBUG| [stdout] tag=cpuacct_100_100 stime=1629968576 dur=15 exit=exited stat=2 core=no cu=23 cs=96
  196535   10:03:40 DEBUG| [stdout] /opt/ltp/testcases/bin/cpuacct.sh: 1: kill: No such process

  Looks like fix for lp:1829978 did not solve all issues.

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