** Tags added: ubuntu-kvm-unit-tests
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https://bugs.launchpad.net/bugs/2022903
Title:
ioapic in ubuntu_kvm_unit_test timeout with
test_ioapic_logical_destination_mode with J-realtime on openstack
AMD64
Status in ubuntu-kernel-tests:
New
Bug description:
ioapic test in ubuntu_kvm_unit_test will fail with J-realtime on
openstack amd64 instance. This issue can be seen after we start
testing on openstack with 5.15.0-1036.39 in sru-20230320.
Test log:
Running
'/home/ubuntu/autotest/client/tmp/ubuntu_kvm_unit_tests/src/kvm-unit-tests/tests/ioapic'
BUILD_HEAD=d8edb59a
timeout -k 1s --foreground 90s /usr/bin/qemu-system-x86_64 --no-reboot
-nodefaults -device pc-testdev -device isa-debug-exit,iobase=0xf4,iosize=0x4
-vnc none -serial stdio -device pci-testdev -machine accel=tcg -kernel
/tmp/tmp.tKzQVFGUKb -smp 4 -cpu qemu64,+x2apic # -initrd /tmp/tmp.uafjlRQFEN
qemu-system-x86_64: warning: TCG doesn't support requested feature:
CPUID.01H:ECX.x2apic [bit 21]
qemu-system-x86_64: warning: TCG doesn't support requested feature:
CPUID.01H:ECX.x2apic [bit 21]
qemu-system-x86_64: warning: TCG doesn't support requested feature:
CPUID.01H:ECX.x2apic [bit 21]
qemu-system-x86_64: warning: TCG doesn't support requested feature:
CPUID.01H:ECX.x2apic [bit 21]
enabling apic
enabling apic
setup: CPU 2 online
enabling apic
setup: CPU 1 online
enabling apic
setup: CPU 3 online
smp: waiting for 3 APs
paging enabled
cr0 = 80010011
cr3 = 1007000
cr4 = 20
x2apic not detected
PASS: version register read only test
PASS: id register only bits [24:27] writable
PASS: arbitration register set by id
PASS: arbtration register read only
PASS: edge triggered intr
PASS: level triggered intr
PASS: ioapic simultaneous edge interrupts
PASS: coalesce simultaneous level interrupts
PASS: sequential level interrupts
PASS: retriggered level interrupts without masking
PASS: masked level interrupt
PASS: unmasked level interrupt
PASS: masked level interrupt
PASS: unmasked level interrupt
PASS: retriggered level interrupts with mask
PASS: TMR for ioapic edge interrupts (expected false)
PASS: TMR for ioapic level interrupts (expected false)
PASS: TMR for ioapic level interrupts (expected true)
PASS: TMR for ioapic edge interrupts (expected true)
PASS: ioapic physical destination mode
qemu-system-x86_64: terminating on signal 15 from pid 12461 (timeout)
FAIL ioapic (timeout; duration=90s)
This issue still exist with the latest upstream kvm-unit-tests code
(02d8befe99f8)
The test can finish with the test_ioapic_logical_destination_mode() related
code commented out. One odd thing is that the test will be triggered here:
if (cpu_count() > 3)
test_ioapic_logical_destination_mode();
cpu_count() here will get 4 on this openstack VM, however lscpu shows:
$ lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Address sizes: 40 bits physical, 48 bits virtual
Byte Order: Little Endian
CPU(s): 2
On-line CPU(s) list: 0,1
Vendor ID: AuthenticAMD
Model name: AMD EPYC-Rome Processor
CPU family: 23
Model: 49
Thread(s) per core: 1
Core(s) per socket: 1
Socket(s): 2
We will need to know how cpu_count() got 4 in this case.
It's worthy to note that this test has passed with j/ibm on openstack
amd64.
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