gicv2-mmio in ubuntu_kvm_unit_tests failed on X ARM64 Moonshot

[Po-Hsu Lin]

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)

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This change was made by a bot.