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[Jürg Häfliger <1828158@xxxxxxxxxxxxxxxxxx>]

** Tags added: kernel-daily-bug

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https://bugs.launchpad.net/bugs/1828158

Title:
  timer in ubuntu_kvm_unit_tests failed on X-hwe ARM64 ThunderX

Status in ubuntu-kernel-tests:
  New
Status in linux-hwe package in Ubuntu:
  New

Bug description:
  Test skipped on Moonshot ARM64:
  SKIP timer (KVM acceleration is probably not supported)

  But failed on ThunderX instead:
  FAIL: ptimer-busy-loop: interrupt received after TVAL/WFI

  
  # TESTNAME=timer TIMEOUT=2s ACCEL= ./arm/run arm/timer.flat -smp 1
  timeout -k 1s --foreground 2s /usr/bin/qemu-system-aarch64 -nodefaults -machine virt,gic-version=host,accel=kvm -cpu host -device virtio-serial-device -device virtconsole,chardev=ctd -chardev testdev,id=ctd -device pci-testdev -display none -serial stdio -kernel arm/timer.flat -smp 1 # -initrd /tmp/tmp.j0n8ycjpmW
  CNTFRQ_EL0   : 0x0000000005f5e100
  CNTPCT_EL0   : 0x00000023cc22210f
  CNTP_CTL_EL0 : 0x0000000000000004
  CNTP_CVAL_EL0: 0x0000000000000000
  CNTVCT_EL0   : 0x00000000007c1236
  CNTV_CTL_EL0 : 0x0000000000000000
  CNTV_CVAL_EL0: 0x0000000000000000
  PASS: vtimer-busy-loop: not pending before
  PASS: vtimer-busy-loop: interrupt signal pending
  INFO: vtimer-busy-loop: After timer: 0x0000000000986769
  INFO: vtimer-busy-loop: Expected   : 0x0000000000986768
  INFO: vtimer-busy-loop: Difference : 0 us
  PASS: vtimer-busy-loop: latency within 10 ms
  PASS: vtimer-busy-loop: interrupt received
  PASS: vtimer-busy-loop: interrupt received after TVAL/WFI
  PASS: vtimer-busy-loop: timer has expired (-7286)
  PASS: ptimer-busy-loop: not pending before
  PASS: ptimer-busy-loop: interrupt signal pending
  INFO: ptimer-busy-loop: After timer: 0x00000023cc81dceb
  INFO: ptimer-busy-loop: Expected   : 0x00000023cc81cf88
  INFO: ptimer-busy-loop: Difference : 34 us
  PASS: ptimer-busy-loop: latency within 10 ms
  PASS: ptimer-busy-loop: interrupt received
  FAIL: ptimer-busy-loop: interrupt received after TVAL/WFI
  PASS: ptimer-busy-loop: timer has expired (-5367)
  SUMMARY: 12 tests, 1 unexpected failures

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.15.0-48-generic 4.15.0-48.51~16.04.1
  ProcVersionSignature: User Name 4.15.0-48.51~16.04.1-generic 4.15.18
  Uname: Linux 4.15.0-48-generic aarch64
  ApportVersion: 2.20.1-0ubuntu2.18
  Architecture: arm64
  Date: Wed May  8 04:17:41 2019
  SourcePackage: linux-hwe
  UpgradeStatus: No upgrade log present (probably fresh install)

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