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[Bug 1943841] Re: svm from ubuntu_kvm_unit_tests interrupt with "Unhandled exception 13 #GP at ip 00000000004027e3" on F-intel-5.13

To: canonical-ubuntu-qa@xxxxxxxxxxxxxxxxxxx
From: Mehmet Basaran <1943841@xxxxxxxxxxxxxxxxxx>
Date: Mon, 21 Oct 2024 13:58:01 -0000
Reply-to: Bug 1943841 <1943841@xxxxxxxxxxxxxxxxxx>
Sender: noreply@xxxxxxxxxxxxx
There is a good chance that the error I mentioned, "Unhandled exception
6 #UD" (undefined instruction exception) is different and architecture
specific (AMD EPYC 7713). However, other kernels referenced this bug for
the same error.

Rerunning this test to see if failure rate is 100%...


20:29:08 DEBUG| [stdout] FAIL: MSR_IA32_LASTBRANCHFROMIP, expected=0x401f4d, actual=0x401f4d
20:29:08 DEBUG| [stdout] PASS: Test that without LBRV enabled, guest LBR state does 'leak' to the host(1)
20:29:08 DEBUG| [stdout] Unhandled exception 6 #UD at ip 0000000000401750
20:29:08 DEBUG| [stdout] error_code=0000      rflags=00010086      cs=00000008
20:29:08 DEBUG| [stdout] rax=00000000004016db rcx=00000000000001dc rdx=80000000004016db rbx=0000000080010015
20:29:08 DEBUG| [stdout] rbp=000000000042fb68 rsi=000000000041776f rdi=0000000000414d40
20:29:08 DEBUG| [stdout]  r8=000000000041776f  r9=00000000000003f8 r10=000000000000000d r11=0000000000000000
20:29:08 DEBUG| [stdout] r12=0000000000000000 r13=0000000000000000 r14=0000000000000000 r15=0000000000000000
20:29:08 DEBUG| [stdout] cr0=0000000080010011 cr2=0000000000000000 cr3=00000000010bf000 cr4=0000000000040020
20:29:08 DEBUG| [stdout] cr8=0000000000000000
20:29:08 DEBUG| [stdout]     STACK: @401750 4001d6 414df0 40bf1e 40bb72 4001d6 414df0 40bf1e 40bb72 4001d6 414df0 40bf1e 40bb72 4001d6 414df0 40bf1e 40bb72 4001d6 414df0 40bf1e
20:29:08 DEBUG| [stdout] FAIL svm

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https://bugs.launchpad.net/bugs/1943841

Title:
  svm from ubuntu_kvm_unit_tests interrupt with "Unhandled exception 13
  #GP at ip 00000000004027e3" on F-intel-5.13

Status in ubuntu-kernel-tests:
  New
Status in linux-intel-5.13 package in Ubuntu:
  New

Bug description:
  Failing with Focal Intel 5.13.0-1004.4 on node gonzo

  A bit like bug 1934939, but this time it looks like this has passed
  through more cases than that bug.

  Running '/home/ubuntu/autotest/client/tmp/ubuntu_kvm_unit_tests/src/kvm-unit-tests/tests/svm'
   BUILD_HEAD=1593e88a
   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.8QIXdsXIyJ -smp 2 -cpu max,+svm -m 4g # -initrd /tmp/tmp.VvuuwXHRuX
   enabling apic
   enabling apic
   paging enabled
   cr0 = 80010011
   cr3 = 10bf000
   cr4 = 20
   NPT detected - running all tests with NPT enabled
   PASS: null
   PASS: vmrun
   PASS: ioio
   PASS: vmrun intercept check
   PASS: rsm
   PASS: cr3 read intercept
   PASS: cr3 read nointercept
   PASS: cr3 read intercept emulate
   PASS: dr intercept check
   PASS: next_rip
   PASS: msr intercept check
   PASS: mode_switch
   PASS: asid_zero
   PASS: sel_cr0_bug
   PASS: npt_nx
   PASS: npt_np
   PASS: npt_us
   PASS: npt_rw
   PASS: npt_rw_pfwalk
   PASS: npt_l1mmio
   PASS: npt_rw_l1mmio
   PASS: tsc_adjust
       Latency VMRUN : max: 322434 min: 21233 avg: 36460
       Latency VMEXIT: max: 298726 min: 16889 avg: 17717
   PASS: latency_run_exit
       Latency VMRUN : max: 334040 min: 23446 avg: 36313
       Latency VMEXIT: max: 310725 min: 16935 avg: 17618
   PASS: latency_run_exit_clean
       Latency VMLOAD: max: 732466 min: 4675 avg: 4879
       Latency VMSAVE: max: 60901 min: 4565 avg: 4850
       Latency STGI:   max: 43057 min: 3726 avg: 3862
       Latency CLGI:   max: 723675 min: 3644 avg: 3724
   PASS: latency_svm_insn
   PASS: exception with vector 2 not injected
   PASS: divide overflow exception injected
   PASS: eventinj.VALID cleared
   PASS: exc_inject
   PASS: pending_event
   PASS: pending_event_cli
   PASS: direct interrupt while running guest
   PASS: intercepted interrupt while running guest
   PASS: direct interrupt + hlt
   PASS: intercepted interrupt + hlt
   PASS: interrupt
   PASS: direct NMI while running guest
   PASS: NMI intercept while running guest
   PASS: nmi
   PASS: direct NMI + hlt
   PASS: NMI intercept while running guest
   PASS: intercepted NMI + hlt
   PASS: nmi_hlt
   PASS: virq_inject
   PASS: No RIP corruption detected after 10000 timer interrupts
   PASS: reg_corruption
   enabling apic
   PASS: svm_init_startup_test
   PASS: host_rflags
   PASS: CPUID.01H:ECX.XSAVE set before VMRUN
   PASS: svm_cr4_osxsave_test_guest finished with VMMCALL
   PASS: CPUID.01H:ECX.XSAVE set after VMRUN
   PASS: EFER.SVME: 1500
   PASS: EFER.SVME: 500
   PASS: Test EFER 9:8: 1700
   PASS: Test EFER 63:16: 11500
   PASS: Test EFER 63:16: 101500
   PASS: Test EFER 63:16: 1001500
   PASS: Test EFER 63:16: 10001500
   PASS: Test EFER 63:16: 100001500
   PASS: Test EFER 63:16: 1000001500
   PASS: Test EFER 63:16: 10000001500
   PASS: Test EFER 63:16: 100000001500
   PASS: Test EFER 63:16: 1000000001500
   PASS: Test EFER 63:16: 10000000001500
   PASS: Test EFER 63:16: 100000000001500
   PASS: Test EFER 63:16: 1000000000001500
   PASS: EFER.LME=1 (1500), CR0.PG=1 (80010011) and CR4.PAE=0 (40000)
   PASS: EFER.LME=1 (1500), CR0.PG=1 and CR0.PE=0 (80010010)
   PASS: EFER.LME=1 (1500), CR0.PG=1 (80010011), CR4.PAE=1 (40020), CS.L=1 and CS.D=1 (699)
   PASS: Test CR0 CD=1,NW=0: c0010011
   PASS: Test CR0 CD=1,NW=1: e0010011
   PASS: Test CR0 CD=0,NW=0: 80010011
   PASS: Test CR0 CD=0,NW=1: a0010011
   PASS: Test CR0 63:32: 180010011
   PASS: Test CR0 63:32: 1080010011
   PASS: Test CR0 63:32: 10080010011
   PASS: Test CR0 63:32: 100080010011
   PASS: Test CR0 63:32: 1000080010011
   PASS: Test CR0 63:32: 10000080010011
   PASS: Test CR0 63:32: 100000080010011
   PASS: Test CR0 63:32: 1000000080010011
   PASS: Test CR3 63:0: 100000010bf000, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR3 63:0: 200000010bf000, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR3 63:0: 400000010bf000, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR3 63:0: 800000010bf000, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR3 63:0: 1000000010bf000, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR3 63:0: 2000000010bf000, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR3 63:0: 4000000010bf000, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR3 63:0: 8000000010bf000, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR3 63:0: 10000000010bf000, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR3 63:0: 20000000010bf000, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR3 63:0: 40000000010bf000, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR3 63:0: 80000000010bf000, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR3 63:0: 10bf000
   PASS: Test CR3 (PCIDE=0) 11:0: 10bf001, wanted exit 0x400, got 0x400
   PASS: Test CR3 (PCIDE=0) 11:0: 10bf002, wanted exit 0x400, got 0x400
   PASS: Test CR3 (PCIDE=0) 11:0: 10bf004, wanted exit 0x400, got 0x400
   PASS: Test CR3 (PCIDE=0) 11:0: 10bf020, wanted exit 0x400, got 0x400
   PASS: Test CR3 (PCIDE=0) 11:0: 10bf040, wanted exit 0x400, got 0x400
   PASS: Test CR3 (PCIDE=0) 11:0: 10bf080, wanted exit 0x400, got 0x400
   PASS: Test CR3 (PCIDE=0) 11:0: 10bf100, wanted exit 0x400, got 0x400
   PASS: Test CR3 (PCIDE=0) 11:0: 10bf200, wanted exit 0x400, got 0x400
   PASS: Test CR3 (PCIDE=0) 11:0: 10bf400, wanted exit 0x400, got 0x400
   PASS: Test CR3 (PCIDE=0) 11:0: 10bf800, wanted exit 0x400, got 0x400
   PASS: Test CR3 (PAE) 2:0: 10bf001, wanted exit 0x400, got 0x400
   PASS: Test CR3 (PAE) 2:0: 10bf002, wanted exit 0x400, got 0x400
   PASS: Test CR3 (PAE) 2:0: 10bf004, wanted exit 0x400, got 0x400
   PASS: Test CR4 31:12: 41020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 31:12: 42020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 31:12: 44020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 31:12: 48020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 31:12: c0020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 31:12: 840020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 31:12: 1040020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 31:12: 2040020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 31:12: 4040020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 31:12: 8040020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 31:12: 10040020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 31:12: 20040020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 31:12: 40040020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 31:12: 80040020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 31:12: 41020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 31:12: 42020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 31:12: 44020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 31:12: 48020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 31:12: c0020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 31:12: 840020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 31:12: 1040020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 31:12: 2040020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 31:12: 4040020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 31:12: 8040020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 31:12: 10040020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 31:12: 20040020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 31:12: 40040020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 31:12: 80040020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 63:32: 100040020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 63:32: 1000040020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 63:32: 10000040020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 63:32: 100000040020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 63:32: 1000000040020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 63:32: 10000000040020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 63:32: 100000000040020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test CR4 63:32: 1000000000040020, wanted exit 0xffffffff, got 0xffffffff
   PASS: Test DR6 63:32: 1ffff0ff0
   PASS: Test DR6 63:32: 10ffff0ff0
   PASS: Test DR6 63:32: 100ffff0ff0
   PASS: Test DR6 63:32: 1000ffff0ff0
   PASS: Test DR6 63:32: 10000ffff0ff0
   PASS: Test DR6 63:32: 100000ffff0ff0
   PASS: Test DR6 63:32: 1000000ffff0ff0
   PASS: Test DR6 63:32: 10000000ffff0ff0
   PASS: Test DR7 63:32: 100000400
   PASS: Test DR7 63:32: 1000000400
   PASS: Test DR7 63:32: 10000000400
   PASS: Test DR7 63:32: 100000000400
   PASS: Test DR7 63:32: 1000000000400
   PASS: Test DR7 63:32: 10000000000400
   PASS: Test DR7 63:32: 100000000000400
   PASS: Test DR7 63:32: 1000000000000400
   PASS: Test MSRPM address: ffffffe000
   PASS: Test MSRPM address: ffffffe001
   PASS: Test MSRPM address: fffffff000
   PASS: Test MSRPM address: 435000
   PASS: Test MSRPM address: 435fff
   PASS: Test IOPM address: ffffffc000
   PASS: Test IOPM address: ffffffd000
   PASS: Test IOPM address: ffffffdffe
   PASS: Test IOPM address: ffffffe000
   PASS: Test IOPM address: fffffff000
   PASS: Test IOPM address: 438000
   PASS: Test IOPM address: 438fff
   PASS: Test FS.base for canonical form: 0
   PASS: Test GS.base for canonical form: 53ddb0
   PASS: Test LDTR.base for canonical form: 0
   PASS: Test TR.base for canonical form: 41407a
   PASS: Test KERNEL GS.base for canonical form: 0
   PASS: Successful VMRUN with noncanonical ES.base
   PASS: Successful VMRUN with noncanonical CS.base
   PASS: Successful VMRUN with noncanonical SS.base
   PASS: Successful VMRUN with noncanonical DS.base
   PASS: Successful VMRUN with noncanonical GDTR.base
   PASS: Successful VMRUN with noncanonical IDTR.base
   PASS: Wanted #NPF on rsvd bits = 0x8000000000000000, got exit = 0x400
   PASS: Wanted PFEC = 0x10000000d, got PFEC = 10000000d, PxE = 0x8000000000401067.  host.NX = 0, host.SMEP = 0, guest.NX = 0, guest.SMEP = 0
   PASS: Wanted #NPF on rsvd bits = 0x3600000000000, got exit = 0x400
   PASS: Wanted PFEC = 0x10000001d, got PFEC = 10000001d, PxE = 0x3600000401067.  host.NX = 1, host.SMEP = 0, guest.NX = 0, guest.SMEP = 0
   Unhandled exception 13 #GP at ip 00000000004027e3
   error_code=0000      rflags=00010256      cs=00000008
   rax=0000000000001500 rcx=00000000c0000080 rdx=0000000000000000 rbx=0000000000140020
   rbp=000000000053ed00 rsi=000000000000000a rdi=00000000000003fd
    r8=000000000041c83a  r9=00000000000003f8 r10=000000000000000d r11=00000000bf9f9000
   r12=0000000000000002 r13=00000000bfec9008 r14=0000000000040020 r15=0000000000001500
   cr0=0000000080010011 cr2=0000000000000000 cr3=00000000010bf000 cr4=0000000000040020
   cr8=0000000000000000
       STACK: @4027e3 402961 400ecc 400368
   FAIL svm

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