Hi Paolo,
On 01.09.2014 23:41, Paolo Bonzini wrote:
Il 21/08/2014 14:28, Valentine Sinitsyn ha scritto:
BTW npt_rsvd does *not* fail on the machine I've been testing on today.
I can confirm l1mmio test doesn't fail in kvm-unit-test's master
anymore. npt_rsvd still does. I also needed to disable ioio test, or it
was hanging for a long time (this doesn't happen if I use Jan's patched
KVM that have IOPM bugs fixed). However, l1mmio test passes regardless I
use stock kvm 3.16.1 or a patched version.
Can you retry running the tests with the latest kvm-unit-tests (branch
"master"), gather a trace of kvm and kvmmmu events, and send the
compressed trace.dat my way?
You mean the trace when the problem reveal itself (not from running
tests), I assume? It's around 2G uncompressed (probably I'm enabling
tracing to early or doing anything else wrong). Will look into it
tomorrow, hopefully, I can reduce the size (e.g. by switching to
uniprocessor mode). Below is a trace snippet similar to the one I've
sent earlier.
----------------------------------------------------------------------
qemu-system-x86-2728 [002] 1726.426225: kvm_exit: reason
npf rip 0xffffffff8104e876 info 10000000f fee000b0
qemu-system-x86-2728 [002] 1726.426226: kvm_nested_vmexit: rip:
0xffffffff8104e876 reason: npf ext_inf1: 0x000000010000000f ext_inf2:
0x00000000fee000b0 ext_int: 0x00000000 ext_int_err: 0x00000000
qemu-system-x86-2728 [002] 1726.426227: kvm_page_fault:
address fee000b0 error_code f
qemu-system-x86-2725 [000] 1726.426227: kvm_exit: reason
npf rip 0xffffffff8104e876 info 10000000f fee000b0
qemu-system-x86-2725 [000] 1726.426228: kvm_nested_vmexit: rip:
0xffffffff8104e876 reason: npf ext_inf1: 0x000000010000000f ext_inf2:
0x00000000fee000b0 ext_int: 0x00000000 ext_int_err: 0x00000000
qemu-system-x86-2725 [000] 1726.426229: kvm_page_fault:
address fee000b0 error_code f
qemu-system-x86-2728 [002] 1726.426229: kvm_emulate_insn:
0:ffffffff8104e876:89 b7 00 b0 5f ff (prot64)
qemu-system-x86-2725 [000] 1726.426230: kvm_emulate_insn:
0:ffffffff8104e876:89 b7 00 b0 5f ff (prot64)
qemu-system-x86-2728 [002] 1726.426231: kvm_mmu_pagetable_walk: addr
ffffffffff5fb0b0 pferr 2 W
qemu-system-x86-2725 [000] 1726.426231: kvm_mmu_pagetable_walk: addr
ffffffffff5fb0b0 pferr 2 W
qemu-system-x86-2728 [002] 1726.426231: kvm_mmu_pagetable_walk: addr
1811000 pferr 6 W|U
qemu-system-x86-2725 [000] 1726.426232: kvm_mmu_pagetable_walk: addr
36c49000 pferr 6 W|U
qemu-system-x86-2728 [002] 1726.426232: kvm_mmu_paging_element: pte
3c03a027 level 4
qemu-system-x86-2725 [000] 1726.426232: kvm_mmu_paging_element: pte
3c03a027 level 4
qemu-system-x86-2728 [002] 1726.426232: kvm_mmu_paging_element: pte
3c03d027 level 3
qemu-system-x86-2725 [000] 1726.426233: kvm_mmu_paging_element: pte
3c03d027 level 3
qemu-system-x86-2728 [002] 1726.426233: kvm_mmu_paging_element: pte
18000e7 level 2
qemu-system-x86-2725 [000] 1726.426233: kvm_mmu_paging_element: pte
36c000e7 level 2
qemu-system-x86-2728 [002] 1726.426233: kvm_mmu_paging_element: pte
1814067 level 4
qemu-system-x86-2725 [000] 1726.426233: kvm_mmu_paging_element: pte
1814067 level 4
qemu-system-x86-2728 [002] 1726.426233: kvm_mmu_pagetable_walk: addr
1814000 pferr 6 W|U
qemu-system-x86-2725 [000] 1726.426234: kvm_mmu_pagetable_walk: addr
1814000 pferr 6 W|U
qemu-system-x86-2728 [002] 1726.426234: kvm_mmu_paging_element: pte
3c03a027 level 4
qemu-system-x86-2725 [000] 1726.426234: kvm_mmu_paging_element: pte
3c03a027 level 4
qemu-system-x86-2728 [002] 1726.426234: kvm_mmu_paging_element: pte
3c03d027 level 3
qemu-system-x86-2725 [000] 1726.426235: kvm_mmu_paging_element: pte
3c03d027 level 3
qemu-system-x86-2728 [002] 1726.426235: kvm_mmu_paging_element: pte
18000e7 level 2
qemu-system-x86-2725 [000] 1726.426235: kvm_mmu_paging_element: pte
18000e7 level 2
qemu-system-x86-2728 [002] 1726.426235: kvm_mmu_paging_element: pte
1816067 level 3
qemu-system-x86-2725 [000] 1726.426235: kvm_mmu_paging_element: pte
1816067 level 3
qemu-system-x86-2728 [002] 1726.426235: kvm_mmu_pagetable_walk: addr
1816000 pferr 6 W|U
qemu-system-x86-2725 [000] 1726.426236: kvm_mmu_pagetable_walk: addr
1816000 pferr 6 W|U
qemu-system-x86-2728 [002] 1726.426236: kvm_mmu_paging_element: pte
3c03a027 level 4
qemu-system-x86-2725 [000] 1726.426236: kvm_mmu_paging_element: pte
3c03a027 level 4
qemu-system-x86-2728 [002] 1726.426236: kvm_mmu_paging_element: pte
3c03d027 level 3
qemu-system-x86-2725 [000] 1726.426236: kvm_mmu_paging_element: pte
3c03d027 level 3
qemu-system-x86-2728 [002] 1726.426236: kvm_mmu_paging_element: pte
18000e7 level 2
qemu-system-x86-2725 [000] 1726.426237: kvm_mmu_paging_element: pte
18000e7 level 2
qemu-system-x86-2728 [002] 1726.426237: kvm_mmu_paging_element: pte
1a06067 level 2
qemu-system-x86-2725 [000] 1726.426237: kvm_mmu_paging_element: pte
1a06067 level 2
qemu-system-x86-2725 [000] 1726.426238: kvm_mmu_pagetable_walk: addr
1a06000 pferr 6 W|U
qemu-system-x86-2728 [002] 1726.426238: kvm_mmu_pagetable_walk: addr
1a06000 pferr 6 W|U
qemu-system-x86-2725 [000] 1726.426238: kvm_mmu_paging_element: pte
3c03a027 level 4
qemu-system-x86-2728 [002] 1726.426238: kvm_mmu_paging_element: pte
3c03a027 level 4
qemu-system-x86-2725 [000] 1726.426238: kvm_mmu_paging_element: pte
3c03d027 level 3
qemu-system-x86-2725 [000] 1726.426239: kvm_mmu_paging_element: pte
1a000e7 level 2
qemu-system-x86-2728 [002] 1726.426239: kvm_mmu_paging_element: pte
3c03d027 level 3
qemu-system-x86-2725 [000] 1726.426239: kvm_mmu_paging_element: pte
80000000fee0017b level 1
qemu-system-x86-2728 [002] 1726.426239: kvm_mmu_paging_element: pte
1a000e7 level 2
qemu-system-x86-2725 [000] 1726.426239: kvm_mmu_pagetable_walk: addr
fee00000 pferr 6 W|U
qemu-system-x86-2728 [002] 1726.426239: kvm_mmu_paging_element: pte
80000000fee0017b level 1
qemu-system-x86-2725 [000] 1726.426240: kvm_mmu_paging_element: pte
3c03a027 level 4
qemu-system-x86-2728 [002] 1726.426240: kvm_mmu_pagetable_walk: addr
fee00000 pferr 6 W|U
qemu-system-x86-2725 [000] 1726.426240: kvm_mmu_paging_element: pte
3c03b027 level 3
qemu-system-x86-2728 [002] 1726.426240: kvm_mmu_paging_element: pte
3c03a027 level 4
qemu-system-x86-2725 [000] 1726.426240: kvm_mmu_paging_element: pte
3c03c027 level 2
qemu-system-x86-2728 [002] 1726.426241: kvm_mmu_paging_element: pte
3c03b027 level 3
qemu-system-x86-2725 [000] 1726.426241: kvm_mmu_paging_element: pte
fee0003d level 1
qemu-system-x86-2728 [002] 1726.426241: kvm_mmu_paging_element: pte
3c03c027 level 2
qemu-system-x86-2725 [000] 1726.426241: kvm_mmu_walker_error: pferr
7 P|W|U
qemu-system-x86-2728 [002] 1726.426241: kvm_mmu_paging_element: pte
fee0003d level 1
qemu-system-x86-2725 [000] 1726.426241: kvm_mmu_walker_error: pferr 2 W
qemu-system-x86-2728 [002] 1726.426242: kvm_mmu_walker_error: pferr
7 P|W|U
qemu-system-x86-2728 [002] 1726.426242: kvm_mmu_walker_error: pferr 2 W
qemu-system-x86-2725 [000] 1726.426243: kvm_inj_exception: e (0x2)
qemu-system-x86-2728 [002] 1726.426243: kvm_inj_exception: e (0x2)
qemu-system-x86-2725 [000] 1726.426244: kvm_entry: vcpu 0
Thanks,
Valentine
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