On Wed, Jul 17, 2013 at 08:42:26PM +0200, Markus Trippelsdorf wrote: > On 2013.07.18 at 01:25 +0800, Xiao Guangrong wrote: > > Hi Markus, > > > > Thanks for your report! I am downloading the ubuntu iso and will try to reproducible it. > > > > Could you please enable these tracepoints: > > kvmmmu/check_mmio_spte > > kvmmmu/handle_mmio_page_fault > > kvmmmu/kvm_mmu_invalidate_zap_all_pages > > kvmmmu/mark_mmio_spte > > kvm/kvm_mmio > > kvm/vcpu_match_mmio > > > > and post the output? > > > First line repeated ad nauseam. > ... > 10346367 qemu-system-x86-1403 [001] 1451.422225: check_mmio_spte: spte ffff0000fee00e3f kvm_gen 7ffc8 spte-gen 7ffc7 valid 0 > 10346368 qemu-system-x86-1403 [001] 1451.422226: check_mmio_spte: spte ffff0000fee00e3f kvm_gen 7ffc8 spte-gen 7ffc7 valid 0 > 10346369 qemu-system-x86-1403 [001] 1451.422227: check_mmio_spte: spte ffff0000fee00e3f kvm_gen 7ffc8 spte-gen 7ffc7 valid 0 > 10346370 qemu-system-x86-1403 [001] 1451.422228: check_mmio_spte: spte ffff0000fee00e3f kvm_gen 7ffc8 spte-gen 7ffc7 valid 0 > 10346371 qemu-system-x86-1403 [001] 1451.422229: check_mmio_spte: spte ffff0000fee00e3f kvm_gen 7ffc8 spte-gen 7ffc7 valid 0 > 10346372 qemu-system-x86-1404 [002] 1451.422229: kvm_mmio: mmio write len 4 gpa 0xfee000b0 val 0x0 > 10346373 qemu-system-x86-1403 [001] 1451.422230: check_mmio_spte: spte ffff0000fee00e3f kvm_gen 7ffc8 spte-gen 7ffc7 valid 0 > 10346374 qemu-system-x86-1403 [001] 1451.422231: check_mmio_spte: spte ffff0000fee00e3f kvm_gen 7ffc8 spte-gen 7ffc7 valid 0 > 10346375 qemu-system-x86-1403 [001] 1451.422232: check_mmio_spte: spte ffff0000fee00e3f kvm_gen 7ffc8 spte-gen 7ffc7 valid 0 > 10346376 qemu-system-x86-1403 [001] 1451.422233: check_mmio_spte: spte ffff0000fee00e3f kvm_gen 7ffc8 spte-gen 7ffc7 valid 0 > 10346377 qemu-system-x86-1403 [001] 1451.422234: check_mmio_spte: spte ffff0000fee00e3f kvm_gen 7ffc8 spte-gen 7ffc7 valid 0 > 10346378 qemu-system-x86-1403 [001] 1451.422235: check_mmio_spte: spte ffff0000fee00e3f kvm_gen 7ffc8 spte-gen 7ffc7 valid 0 > 10346379 qemu-system-x86-1404 [002] 1451.422236: kvm_mmio: mmio write len 4 gpa 0xfee00380 val 0x3c7b0 > 10346380 qemu-system-x86-1403 [001] 1451.422237: check_mmio_spte: spte ffff0000fee00e3f kvm_gen 7ffc8 spte-gen 7ffc7 valid 0 > 10346381 qemu-system-x86-1403 [001] 1451.422238: check_mmio_spte: spte ffff0000fee00e3f kvm_gen 7ffc8 spte-gen 7ffc7 valid 0 > 10346382 qemu-system-x86-1403 [001] 1451.422239: check_mmio_spte: spte ffff0000fee00e3f kvm_gen 7ffc8 spte-gen 7ffc7 valid 0 > 10346383 qemu-system-x86-1403 [001] 1451.422240: check_mmio_spte: spte ffff0000fee00e3f kvm_gen 7ffc8 spte-gen 7ffc7 valid 0 > 10346384 qemu-system-x86-1403 [001] 1451.422241: check_mmio_spte: spte ffff0000fee00e3f kvm_gen 7ffc8 spte-gen 7ffc7 valid 0 > 10346385 qemu-system-x86-1403 [001] 1451.422242: check_mmio_spte: spte ffff0000fee00e3f kvm_gen 7ffc8 spte-gen 7ffc7 valid 0 > 10346386 qemu-system-x86-1403 [001] 1451.422243: check_mmio_spte: spte ffff0000fee00e3f kvm_gen 7ffc8 spte-gen 7ffc7 valid 0 > 10346387 qemu-system-x86-1403 [001] 1451.422244: check_mmio_spte: spte ffff0000fee00e3f kvm_gen 7ffc8 spte-gen 7ffc7 valid 0 > 10346403 qemu-system-x86-1403 [001] 1451.422260: check_mmio_spte: spte ffff0000fee00e3f kvm_gen 7ffc8 spte-gen 7ffc7 valid 0 > ... > Last line repeated ad nauseam. > While this happens can you run "echo t > /proc/sysrq-trigger" and attach dmesg here. -- Gleb. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
