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[Jürg Häfliger <1828165@xxxxxxxxxxxxxxxxxx>]

** Tags added: kernel-daily-bug

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https://bugs.launchpad.net/bugs/1828165

Title:
  gicv2-mmio in ubuntu_kvm_unit_tests failed on X ARM64 Moonshot

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

Bug description:
  This test passed with X-HWE on ARM64 Moonshot:
      TESTNAME=gicv2-mmio TIMEOUT=90s ACCEL= ./arm/run arm/gic.flat -smp $((($MAX_SMP < 8)?$MAX_SMP:8)) -machine gic-version=2 -append 'mmio'
      PASS gicv2-mmio (17 tests, 1 skipped)

  So this feels like a kernel issue to me.

  # MAX_SMP=8
  # TESTNAME=gicv2-mmio TIMEOUT=90s ACCEL= ./arm/run arm/gic.flat -smp $((($MAX_SMP < 8)?$MAX_SMP:8)) -machine gic-version=2 -append 'mmio'
  timeout -k 1s --foreground 90s /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/gic.flat -smp 8 -machine gic-version=2 -append mmio # -initrd /tmp/tmp.OlzPYOZSZn
  INFO: gicv2: mmio: number of implemented SPIs: 256
  PASS: gicv2: mmio: all 8 CPUs have interrupts
  INFO: gicv2: mmio: IIDR: 0x4b00043b
  PASS: gicv2: mmio: GICD_TYPER is read-only
  PASS: gicv2: mmio: GICD_IIDR is read-only
  PASS: gicv2: mmio: ICPIDR2 is read-only (0x00000000)
  PASS: gicv2: mmio: IPRIORITYR: consistent priority masking (0xffffffff)
  PASS: gicv2: mmio: IPRIORITYR: implements at least 4 priority bits (8)
  PASS: gicv2: mmio: IPRIORITYR: clearing priorities
  PASS: gicv2: mmio: IPRIORITYR: accesses beyond limit RAZ/WI
  PASS: gicv2: mmio: IPRIORITYR: accessing last SPIs
  PASS: gicv2: mmio: IPRIORITYR: priorities are preserved
  PASS: gicv2: mmio: IPRIORITYR: byte reads successful (0xff7fbf3f => 0xbf)
  PASS: gicv2: mmio: IPRIORITYR: byte writes successful (0x1f => 0xff1fbf3f)
  SKIP: gicv2: mmio: ITARGETSR: CPU masking (all CPUs implemented)
  PASS: gicv2: mmio: ITARGETSR: accesses beyond limit RAZ/WI
  FAIL: gicv2: mmio: ITARGETSR: register content preserved (0103020f => 01010201)
  PASS: gicv2: mmio: ITARGETSR: byte reads successful (0x0103020f => 0x02)
  FAIL: gicv2: mmio: ITARGETSR: byte writes successful (0x1f => 0x01010201)
  SUMMARY: 17 tests, 2 unexpected failures, 1 skipped

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-146-generic 4.4.0-146.172
  ProcVersionSignature: Ubuntu 4.4.0-146.172-generic 4.4.177
  Uname: Linux 4.4.0-146-generic aarch64
  AlsaDevices:
   total 0
   crw-rw---- 1 root audio 116,  1 May  8 02:17 seq
   crw-rw---- 1 root audio 116, 33 May  8 02:17 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.18
  Architecture: arm64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CRDA: N/A
  Date: Wed May  8 06:36:49 2019
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Error: command ['lsusb'] failed with exit code 1:
  PciMultimedia:
   
  ProcFB:
   
  ProcKernelCmdLine: console=ttyS0,9600n8r ro
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-146-generic N/A
   linux-backports-modules-4.4.0-146-generic  N/A
   linux-firmware                             1.157.21
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)

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