vmx_intr_window_test failed in ubuntu_kvm_unit_tests

[Po-Hsu Lin]

Issue found on bare-metal node r5.metal, i3.metal, c5.metal

timeout -k 1s --foreground 30 /usr/bin/qemu-system-x86_64 -nodefaults -device pc-testdev -device isa-debug-exit,iobase=0xf4,iosize=0x4 -vnc none -serial stdio -device pci-testdev -machine accel=kvm -kernel /tmp/tmp.o2GSZDe6Sg -smp 1 -cpu host,+vmx -append vmx_intr_window_test # -initrd /tmp/tmp.DyTq483Kzy
 enabling apic
 paging enabled
 cr0 = 80010011
 cr3 = 477000
 cr4 = 20

 Test suite: vmx_intr_window_test
 FAIL: interrupt-window: x86/vmx_tests.c:2184: Assertion failed: (expected) == (actual)
 LHS: 0x0000000000000012 - 0000'0000'0000'0000'0000'0000'0000'0000'0000'0000'0000'0000'0000'0000'0001'0010 - 18
 RHS: 000000000000000000 - 0000'0000'0000'0000'0000'0000'0000'0000'0000'0000'0000'0000'0000'0000'0000'0000 - 0
 Expected VMX_VMCALL, got VMX_EXC_NMI.
 STACK: 405e1c 406276 401556 4039f1 400312
 SUMMARY: 4 tests, 1 unexpected failures
 FAIL vmx_intr_window_test (4 tests, 1 unexpected failures)

[Po-Hsu Lin (cypressyew)]

Looks like this is a new test.

[Sean Feole (sfeole)]

these failures are to be expected on 4.15 and older kernels. they were split from the large vmx test, this is not a blocker, removing the tag.

We will continue to run these tests on the 4.15 and older kernels, to ensure that the kernel does not crash or panic, etc. There is no plan to stop running them. We just know they will fail

[Po-Hsu Lin (cypressyew)]

Time out on T-4.4
 BUILD_HEAD=4671e4ba
 timeout -k 1s --foreground 30 /usr/bin/qemu-system-x86_64 -nodefaults -device pc-testdev -device isa-debug-exit,iobase=0xf4,iosize=0x4 -vnc none -serial stdio -device pci-testdev -machine accel=kvm -kernel /tmp/tmp.1GnM3OrkjX -smp 1 -cpu host,+vmx -append vmx_intr_window_test # -initrd /tmp/tmp.PKWl9ln0zG
 enabling apic
 paging enabled
 cr0 = 80010011
 cr3 = 477000
 cr4 = 20

 Test suite: vmx_intr_window_test
 PASS: interrupt-window: active, no blocking, RFLAGS.IF=1: Exit reason (7) is 'interrupt window'
 PASS: interrupt-window: active, no blocking, RFLAGS.IF=1: RIP (0x406f20) is 0x406f20
 PASS: interrupt-window: active, no blocking, RFLAGS.IF=1: Activity state (0) is 'ACTIVE'
 PASS: interrupt-window: active, no blocking, RFLAGS.IF=1, injecting #UD: Exit reason (7) is 'interrupt window'
 PASS: interrupt-window: active, no blocking, RFLAGS.IF=1, injecting #UD: RIP (0x413d21) is 0x413d21
 PASS: interrupt-window: active, no blocking, RFLAGS.IF=1, injecting #UD: Activity state (0) is 'ACTIVE'
 PASS: interrupt-window: active, blocking by MOV-SS, RFLAGS.IF=1: Exit reason (7) is 'interrupt window'
 PASS: interrupt-window: active, blocking by MOV-SS, RFLAGS.IF=1: RIP (0x406f24) is 0x406f24
 PASS: interrupt-window: active, blocking by MOV-SS, RFLAGS.IF=1: Activity state (0) is 'ACTIVE'
 PASS: interrupt-window: active, blocking by STI, RFLAGS.IF=1: Exit reason (7) is 'interrupt window'
 PASS: interrupt-window: active, blocking by STI, RFLAGS.IF=1: RIP (0x406f24) is 0x406f24
 PASS: interrupt-window: active, blocking by STI, RFLAGS.IF=1: Activity state (0) is 'ACTIVE'
 PASS: interrupt-window: active, RFLAGS.IF = 0: Exit reason (7) is 'interrupt window'
 PASS: interrupt-window: active, RFLAGS.IF = 0: RIP (0x406f26) is 0x406f26
 PASS: interrupt-window: active, RFLAGS.IF = 0: Activity state (0) is 'ACTIVE'
 qemu-system-x86_64: terminating on signal 15 from pid 5957
 FAIL vmx_intr_window_test (timeout; duration=30)

[Kelsey Steele (kelsey-steele)]

failed on Bionic/azure-4.15 : 4.15.0-1097.107 : amd64

 FAIL vmx_intr_window_test (timeout; duration=30)

[Po-Hsu Lin (cypressyew)]

Still visible in Xenial 4.4.0-1118.132 AWS c5.metal

[Francis Ginther (fginther)]

linux-oracle 4.15.0-1065.73

[Kleber Sacilotto de Souza (kleber-souza)]

Failed with timeout on xenial/linux-oracle: 4.15.0-1069.77~16.04.1 for sru-20210315

[Guilherme G. Piccoli (gpiccoli)]

Issue observed in B/KVM, cycle sru-20210510.

[Ian May (ian-may)]

bionic/linux-aws: 4.15.0-1103.110

[Ian May (ian-may)]

Found on bionic/linux-aws-fips: 4.15.0-2045.47

[Ian May (ian-may)]

Found on bionic/linux-azure-4.15: 4.15.0-1115.128