canonical-ubuntu-qa team mailing list archive

[Po-Hsu Lin <2022911@xxxxxxxxxxxxxxxxxx>]

** Tags added: ubuntu-kvm-unit-tests

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https://bugs.launchpad.net/bugs/2022911

Title:
  vmexit_vmcall in ubuntu_kvm_unit_test failed with "Unhandled exception
  6 #UD at ip 000000000040024f" with J-realtime on openstack AMD64

Status in ubuntu-kernel-tests:
  New

Bug description:
  vmexit_vmcall 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/vmexit_vmcall'
   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.JK8g0Sm7qn -smp 1 -append vmcall # -initrd /tmp/tmp.AiLDHJBV6A
   enabling apic
   smp: waiting for 0 APs
   paging enabled
   cr0 = 80010011
   cr3 = 1007000
   cr4 = 20
   pci-testdev at 0x10 membar febff000 iobar c000
   Unhandled exception 6 #UD at ip 000000000040024f
   error_code=0000      rflags=00000202      cs=00000008
   rax=0000000000000000 rcx=0000000000000000 rdx=0000000000400241 rbx=0000000000000000
   rbp=0000000000514b70 rsi=0000000000000000 rdi=0000000000400241
    r8=0000000000000001  r9=000000000040046f r10=000000000000000d r11=0000000000000010
   r12=0000000000400241 r13=000000000040046f r14=0000000000409028 r15=0000000000409028
   cr0=0000000080010011 cr2=0000000000000000 cr3=0000000001007000 cr4=0000000000000020
   cr8=0000000000000000
       STACK: @40024f 40048e 4054b4 4055e7 405618 400f57 40021d
   FAIL vmexit_vmcall

  
  This issue still exist with the latest upstream kvm-unit-tests code (02d8befe99f8)
  It's worthy to note that this test has passed with j/ibm on openstack amd64.

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