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[Bug 1850653] Re: realmode in ubuntu_kvm_unit tests fails on Eoan

To: canonical-ubuntu-qa@xxxxxxxxxxxxxxxxxxx
From: Brian Murray <1850653@xxxxxxxxxxxxxxxxxx>
Date: Fri, 26 Jul 2024 16:22:17 -0000
Reply-to: Bug 1850653 <1850653@xxxxxxxxxxxxxxxxxx>
Sender: noreply@xxxxxxxxxxxxx
Ubuntu 19.10 (Eoan Ermine) has reached end of life, so this bug will not
be fixed for that specific release.

** Changed in: linux (Ubuntu Eoan)
       Status: Incomplete => Won't Fix

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https://bugs.launchpad.net/bugs/1850653

Title:
  realmode in ubuntu_kvm_unit tests fails on Eoan

Status in ubuntu-kernel-tests:
  Triaged
Status in linux package in Ubuntu:
  Incomplete
Status in linux-azure package in Ubuntu:
  New
Status in linux source package in Eoan:
  Won't Fix
Status in linux-azure source package in Eoan:
  Won't Fix

Bug description:
  Kernel: 5.3
  Cloud: Azure
  Test: ubuntu_kvm_unit_tests

  realmode fails in the 5.3 kernel on Azure, I believe this may have
  something to do with the instances as we don't see this failure on
  other clouds. Only in a few cases on AWS, on  baremetal.

  10/25 13:50:31 DEBUG|     utils:0116| Running 'kvm-ok'
  10/25 13:50:31 DEBUG|     utils:0153| [stdout] INFO: /dev/kvm exists
  10/25 13:50:31 DEBUG|     utils:0153| [stdout] KVM acceleration can be used
  10/25 13:50:31 DEBUG|     utils:0116| Running '/home/azure/autotest/client/tmp/ubuntu_kvm_unit_tests/src/kvm-unit-tests/tests/realmode'
  10/25 13:50:31 DEBUG|     utils:0153| [stdout] BUILD_HEAD=e2c275c4
  10/25 13:50:32 DEBUG|     utils:0153| [stdout] timeout -k 1s --foreground 90s /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.QHy5F7j43j -smp 1 # -initrd /tmp/tmp.9RnyRFe5YU
  10/25 13:50:32 DEBUG|     utils:0153| [stderr] qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.80000001H:ECX.svm [bit 2]
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: null
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: shld
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: push/pop 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: push/pop 2
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: push/pop 3
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: push/pop 4
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: push/pop 5
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: push/pop 6
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: push/pop with high bits set in %esp
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: pusha/popa 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: pusha/popa 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: mov 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: mov 2
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: mov 3
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: mov 4
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: mov 5
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: cmp 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: cmp 2
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: cmp 3
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: add 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: add 2
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: sub 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: sub 2
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: sub 3
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: sub 4
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: xor 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: xor 2
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: xor 3
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: xor 4
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: pio 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: pio 2
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: pio 3
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: pio 4
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: pio 5
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: pio 6
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: clc
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: stc
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: cli
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: sti
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: cld
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: std
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: jnz short 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: jnz short 2
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: jmp short 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: jnz near 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: jnz near 2
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: jmp near 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: call 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: call near 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: call near 2
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: call far 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: call far 2
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: ret imm 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: retf imm 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: jmp far 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: xchg 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: xchg 2
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: xchg 3
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: xchg 4
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: xchg 5
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: xchg 6
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: xchg 7
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: xchg 8
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] FAIL: iret 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: iret 2
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] FAIL: iret 3
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: rflags.rf
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: iret 4
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: int 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: imul 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: imul 2
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: imul 3
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: imul 4
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: imul 5
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: imul 6
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: mul 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: mul 2
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: mul 3
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: div 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: div 2
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: div 3
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: idiv 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: idiv 2
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: idiv 3
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: LOOPcc short 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: LOOPcc short 2
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: LOOPcc short 3
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: cbq 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: cwde 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: cwd 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: cwd 2
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: cdq 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: cdq 2
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: DAS
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: lds
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: les
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: lfs
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: lgs
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: lss
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: jcxz short 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: jcxz short 2
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: jcxz short 3
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: jecxz short 1
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: jecxz short 2
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: cpuid
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: ss relative addressing (1)
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: ss relative addressing (2)
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: sgdt
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: sidt
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: lahf
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: sahf
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: movsx
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: movzx
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: movsx ah
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: movzx ah
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: bswap
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: aad
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: aam
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: xlat
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: salc (1)
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: salc (2)
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: fninit
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: mov dr with mod bits
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: smsw
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: nopl
  10/25 13:50:33 DEBUG|     utils:0153| [stdout] PASS: xadd
  10/25 13:50:34 DEBUG|     utils:0153| [stdout] 1476 cycles/emulated jump instruction
  10/25 13:50:35 DEBUG|     utils:0153| [stdout] 1456 cycles/emulated move instruction
  10/25 13:50:36 DEBUG|     utils:0153| [stdout] 1397 cycles/emulated arithmetic instruction
  10/25 13:50:38 DEBUG|     utils:0153| [stdout] 1842 cycles/emulated memory load instruction
  10/25 13:50:39 DEBUG|     utils:0153| [stdout] 2051 cycles/emulated memory store instruction
  10/25 13:50:41 DEBUG|     utils:0153| [stdout] 2614 cycles/emulated memory RMW instruction
  10/25 13:50:41 DEBUG|     utils:0153| [stdout] FAIL realmode 
  10/25 13:50:41 ERROR|      test:0414| Exception escaping from test:

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