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[Bug 2047820] Re: access in ubuntu_kvm_unit_tests failed on specific Intel SDPs with Focal (FAIL: unexpected access and timeout)

To: canonical-ubuntu-qa@xxxxxxxxxxxxxxxxxxx
From: Po-Hsu Lin <2047820@xxxxxxxxxxxxxxxxxx>
Date: Wed, 03 Jan 2024 03:06:48 -0000
Reply-to: Bug 2047820 <2047820@xxxxxxxxxxxxxxxxxx>
Sender: noreply@xxxxxxxxxxxxx
The vmx_pf_exception_test on this node is failing with the same.

Bug title / content modified.

** Attachment added: "vmx_pf_exception.log"
   https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/2047820/+attachment/5735696/+files/vmx_pf_exception.log

** Summary changed:

- access in ubuntu_kvm_unit_tests failed on specific Intel SDPs with Focal (FAIL: unexpected access and timeout)
+ access, vmx_pf_exception_test in ubuntu_kvm_unit_tests failed on specific Intel SDPs with Focal (FAIL: unexpected access and timeout)

** Description changed:

  This issue is not a regression nor caused by the test suite update [1]
  
  It's just because we have this tested on Intel SDP node "grumman"
  recently in 2023.10.30 cycle. And this issue can be found with
  5.4.0-168.186 before the test suite update.
  
- Issue found on node Intel SDP node grumman. Test will fail with
- "unexpected access" and timeout in the end. (This issue does not exist
- on the same node with Jammy 5.15, and does not exist with Intel SDP
- "wildcat" and "vought")
+ Issue found on node Intel SDP node grumman. Both of the access and
+ vmx_pf_exception_test tests will fail with "unexpected access" and
+ timeout in the end. (This issue does not exist on the same node with
+ Jammy 5.15, and does not exist with Intel SDP "wildcat" and "vought")
  
  Test log (please find the attachment for the complete test log):
   Running '/home/ubuntu/autotest/client/tmp/ubuntu_kvm_unit_tests/src/kvm-unit-tests/tests/access'
   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=kvm -kernel /tmp/tmp.YMzvL0zmTr -smp 1 -cpu max # -initrd /tmp/tmp.iL1B9Yy1DN
   enabling apic
   smp: waiting for 0 APs
   starting test
  
   run
  
   test pte.p pte.51 pde.p: FAIL: unexpected access
   Dump mapping: address: 0xffff923400000000
   ------L4 I292: 2100027
   ------L3 I208: 2101027
   ------L2 I0: 2102061
   ------L1 I0: 8000002000001
  
   test pte.rw pte.p pte.51 pde.p: FAIL: unexpected access
   Dump mapping: address: 0xffff923400000000
   ------L4 I292: 2100027
   ------L3 I208: 2101027
   ------L2 I0: 2102061
   ------L1 I0: 8000002000003
  
   test pte.user pte.p pte.51 pde.p: FAIL: unexpected access
   Dump mapping: address: 0xffff923400000000
   ------L4 I292: 2100027
   ------L3 I208: 2101027
   ------L2 I0: 2102061
   ------L1 I0: 8000002000005
  
   test pte.rw pte.user pte.p pte.51 pde.p: FAIL: unexpected access
   Dump mapping: address: 0xffff923400000000
   ------L4 I292: 2100027
   ------L3 I208: 2101027
   ------L2 I0: 2102061
   ------L1 I0: 8000002000007
  
   (log omitted)
  
   test pte.user pte.a pte.d pte.p pte.51 pde.rw pde.user pde.d pde.pse pde.p: FAIL: pde 20000c7 expected 20000e7
   Dump mapping: address: 0xffff923400000000
   ------L4 I292: 2100027
   ------L3 I208: 2101027
   ------L2 I0: 20000c7
  
   test pte.rw pte.user pte.a pte.d pte.p pte.51 pde.rw pde.user pde.d pde.pse pde.p: FAIL: pde 20000c7 expected 20000e7
   Dump mapping: address: 0xffff923400000000
   ------L4 I292: 2100027
   ------L3 I208: 2101027
   ------L2 I0: 20000c7
   qemu-system-x86_64: terminating on signal 15 from pid 16404 (timeout)
   FAIL access (timeout; duration=90s)
  
- [1] https://lists.ubuntu.com/archives/kernel-
- team/2023-December/147665.html
+ And for the vmx_pf_exception_test:
+  (log omitted)
+  test pte.rw pte.user pte.a pte.d pte.p pte.51 pde.rw pde.user pde.d pde.pse pde.p: FAIL: pde 20000c7 expected 20000e7
+  Dump mapping: address: 0xffff923400000000
+  ------L4 I292: 2100027
+  ------L3 I208: 2101027
+  ------L2 I0: 20000c7
+  qemu-system-x86_64: terminating on signal 15 from pid 33678 (timeout)
+  FAIL vmx_pf_exception_test (timeout; duration=90s)
+ 
+ 
+ [1] https://lists.ubuntu.com/archives/kernel-team/2023-December/147665.html

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https://bugs.launchpad.net/bugs/2047820

Title:
  access, vmx_pf_exception_test in ubuntu_kvm_unit_tests failed on
  specific Intel SDPs with Focal (FAIL: unexpected access and timeout)

Status in ubuntu-kernel-tests:
  New

Bug description:
  This issue is not a regression nor caused by the test suite update [1]

  It's just because we have this tested on Intel SDP node "grumman"
  recently in 2023.10.30 cycle. And this issue can be found with
  5.4.0-168.186 before the test suite update.

  Issue found on node Intel SDP node grumman. Both of the access and
  vmx_pf_exception_test tests will fail with "unexpected access" and
  timeout in the end. (This issue does not exist on the same node with
  Jammy 5.15, and does not exist with Intel SDP "wildcat" and "vought")

  Test log (please find the attachment for the complete test log):
   Running '/home/ubuntu/autotest/client/tmp/ubuntu_kvm_unit_tests/src/kvm-unit-tests/tests/access'
   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=kvm -kernel /tmp/tmp.YMzvL0zmTr -smp 1 -cpu max # -initrd /tmp/tmp.iL1B9Yy1DN
   enabling apic
   smp: waiting for 0 APs
   starting test

   run

   test pte.p pte.51 pde.p: FAIL: unexpected access
   Dump mapping: address: 0xffff923400000000
   ------L4 I292: 2100027
   ------L3 I208: 2101027
   ------L2 I0: 2102061
   ------L1 I0: 8000002000001

   test pte.rw pte.p pte.51 pde.p: FAIL: unexpected access
   Dump mapping: address: 0xffff923400000000
   ------L4 I292: 2100027
   ------L3 I208: 2101027
   ------L2 I0: 2102061
   ------L1 I0: 8000002000003

   test pte.user pte.p pte.51 pde.p: FAIL: unexpected access
   Dump mapping: address: 0xffff923400000000
   ------L4 I292: 2100027
   ------L3 I208: 2101027
   ------L2 I0: 2102061
   ------L1 I0: 8000002000005

   test pte.rw pte.user pte.p pte.51 pde.p: FAIL: unexpected access
   Dump mapping: address: 0xffff923400000000
   ------L4 I292: 2100027
   ------L3 I208: 2101027
   ------L2 I0: 2102061
   ------L1 I0: 8000002000007

   (log omitted)

   test pte.user pte.a pte.d pte.p pte.51 pde.rw pde.user pde.d pde.pse pde.p: FAIL: pde 20000c7 expected 20000e7
   Dump mapping: address: 0xffff923400000000
   ------L4 I292: 2100027
   ------L3 I208: 2101027
   ------L2 I0: 20000c7

   test pte.rw pte.user pte.a pte.d pte.p pte.51 pde.rw pde.user pde.d pde.pse pde.p: FAIL: pde 20000c7 expected 20000e7
   Dump mapping: address: 0xffff923400000000
   ------L4 I292: 2100027
   ------L3 I208: 2101027
   ------L2 I0: 20000c7
   qemu-system-x86_64: terminating on signal 15 from pid 16404 (timeout)
   FAIL access (timeout; duration=90s)

  And for the vmx_pf_exception_test:
   (log omitted)
   test pte.rw pte.user pte.a pte.d pte.p pte.51 pde.rw pde.user pde.d pde.pse pde.p: FAIL: pde 20000c7 expected 20000e7
   Dump mapping: address: 0xffff923400000000
   ------L4 I292: 2100027
   ------L3 I208: 2101027
   ------L2 I0: 20000c7
   qemu-system-x86_64: terminating on signal 15 from pid 33678 (timeout)
   FAIL vmx_pf_exception_test (timeout; duration=90s)

  
  [1] https://lists.ubuntu.com/archives/kernel-team/2023-December/147665.html

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References

[Bug 2047820] [NEW] access in ubuntu_kvm_unit_tests failed on specific Intel SDPs with Focal (FAIL: unexpected access and timeout)
From: Po-Hsu Lin, 2024-01-02