cc linux-mm as suggested by Wanpeng. [ 2423.567961] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 [ 2423.568252] IP: [<ffffffff8118d0fa>] copy_huge_page+0x8a/0x2a0 [ 2423.568465] PGD 0 [ 2423.568535] Oops: 0000 [#1] SMP [ 2423.568658] Modules linked in: ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables kvm_intel kvm bridge stp ast ttm drm_kms_helper drm llc sysimgblt sysfillrect syscopyarea ioatdma shpchp joydev dcdbas mei_me mei mac_hid lpc_ich acpi_pad wmi lp ext2 parport hid_generic usbhid hid ixgbe igb ahci dca i2c_algo_bit libahci ptp pps_core mdio [ 2423.570426] CPU: 16 PID: 2869 Comm: qemu-system-x86 Not tainted 3.11.0-15-generic #25~precise1-Ubuntu [ 2423.570763] Hardware name: Dell Inc. PowerEdge C6220 II/09N44V, BIOS 2.0.3 07/03/2013 [ 2423.571046] task: ffff88101de89770 ti: ffff88101df22000 task.ti: ffff88101df22000 [ 2423.571314] RIP: 0010:[<ffffffff8118d0fa>] [<ffffffff8118d0fa>] copy_huge_page+0x8a/0x2a0 [ 2423.571609] RSP: 0018:ffff88101df23768 EFLAGS: 00010246 [ 2423.571797] RAX: 0000000000200000 RBX: ffffffff81f9aa20 RCX: 0000000000000012 [ 2423.572052] RDX: ffffffff81f9aa20 RSI: 0000000000001000 RDI: ffffea007bf20000 [ 2423.572307] RBP: ffff88101df237b8 R08: 0000000000000000 R09: 0000000000000200 [ 2423.572562] R10: 0000000000000000 R11: 0000000000017960 R12: ffffea007bf20000 [ 2423.572816] R13: 0000000000000001 R14: 020400000008407d R15: ffffea0040438000 [ 2423.573074] FS: 00007f40cffff700(0000) GS:ffff88203eec0000(0000) knlGS:0000000000000000 [ 2423.573366] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2423.573570] CR2: 0000000000000008 CR3: 0000002024247000 CR4: 00000000001427e0 [ 2423.573825] Stack: [ 2423.573889] ffff88101df23788 ffffffff81156460 ffff88207fff8000 ffffea007bf20000 [ 2423.574151] ffff88101df23798 ffffea0040438000 ffffea007bf20000 0000000000000001 [ 2423.574414] 020400000008407d ffff88101b341250 ffff88101df237e8 ffffffff8119fee9 [ 2423.574675] Call Trace: [ 2423.574765] [<ffffffff81156460>] ? put_compound_page+0x40/0x70 [ 2423.574980] [<ffffffff8119fee9>] migrate_page_copy+0x39/0x250 [ 2423.575190] [<ffffffff811a171c>] migrate_misplaced_transhuge_page+0x16c/0x4d0 [ 2423.575454] [<ffffffff811a4429>] do_huge_pmd_numa_page+0x169/0x2d0 [ 2423.575682] [<ffffffff8115b92b>] ? putback_lru_page+0x5b/0xc0 [ 2423.575894] [<ffffffff81174014>] handle_mm_fault+0x2c4/0x3e0 [ 2423.576103] [<ffffffff8105a31a>] ? gup_pmd_range+0xaa/0xf0 [ 2423.576303] [<ffffffff81174378>] __get_user_pages+0x178/0x5c0 [ 2423.576516] [<ffffffff8105a340>] ? gup_pmd_range+0xd0/0xf0 [ 2423.576737] [<ffffffffa0223bee>] hva_to_pfn_slow+0x9e/0x150 [kvm] [ 2423.576971] [<ffffffffa02258e5>] hva_to_pfn+0xd5/0x210 [kvm] [ 2423.577188] [<ffffffffa0225730>] ? kvm_release_pfn_clean+0x50/0x60 [kvm] [ 2423.577452] [<ffffffffa02463c8>] ? mmu_set_spte+0x138/0x270 [kvm] [ 2423.577685] [<ffffffffa0225acd>] __gfn_to_pfn_memslot+0xad/0xb0 [kvm] [ 2423.577930] [<ffffffffa0225b47>] __gfn_to_pfn+0x57/0x70 [kvm] [ 2423.578149] [<ffffffffa0225bba>] gfn_to_pfn_async+0x1a/0x20 [kvm] [ 2423.578387] [<ffffffffa024553a>] try_async_pf+0x4a/0x90 [kvm] [ 2423.578607] [<ffffffffa0227bbb>] ? kvm_host_page_size+0x9b/0xb0 [kvm] [ 2423.587202] [<ffffffffa0247c9b>] tdp_page_fault+0x10b/0x220 [kvm] [ 2423.595850] [<ffffffffa0244861>] kvm_mmu_page_fault+0x31/0x70 [kvm] [ 2423.604557] [<ffffffffa02b83de>] handle_ept_violation+0x7e/0x150 [kvm_intel] [ 2423.613164] [<ffffffffa02bc277>] vmx_handle_exit+0xa7/0x270 [kvm_intel] [ 2423.621586] [<ffffffffa023d1a7>] vcpu_enter_guest+0x447/0x770 [kvm] [ 2423.629990] [<ffffffffa02559c9>] ? kvm_apic_local_deliver+0x69/0x70 [kvm] [ 2423.638546] [<ffffffffa023d688>] __vcpu_run+0x1b8/0x2f0 [kvm] [ 2423.646872] [<ffffffffa023d85d>] kvm_arch_vcpu_ioctl_run+0x9d/0x170 [kvm] [ 2423.654980] [<ffffffffa022614b>] kvm_vcpu_ioctl+0x43b/0x600 [kvm] [ 2423.662816] [<ffffffff811c5f9c>] do_vfs_ioctl+0x7c/0x2f0 [ 2423.670388] [<ffffffff811c62a1>] SyS_ioctl+0x91/0xb0 [ 2423.677695] [<ffffffff8175099d>] system_call_fastpath+0x1a/0x1f [ 2423.684854] Code: f9 81 48 d3 e6 48 39 c6 74 2a be 00 10 00 00 eb 0e 8b 4b 08 48 89 f7 48 d3 e7 48 39 c7 74 15 48 81 c3 60 0b 00 00 48 39 d3 72 e6 <8b> 0c 25 08 00 00 00 31 db 41 bc 01 00 00 00 44 89 e0 d3 e0 3d [ 2423.699824] RIP [<ffffffff8118d0fa>] copy_huge_page+0x8a/0x2a0 [ 2423.707111] RSP <ffff88101df23768> [ 2423.714230] CR2: 0000000000000008 [ 2423.784650] ---[ end trace f686f7a0c554a317 ]--- [ 2423.792015] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 [ 2423.799305] IP: [<ffffffff8118d0fa>] copy_huge_page+0x8a/0x2a0 [ 2423.806618] PGD 0 [ 2423.813866] Oops: 0000 [#2] SMP [ 2423.821032] Modules linked in: ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables kvm_intel kvm bridge stp ast ttm drm_kms_helper drm llc sysimgblt sysfillrect syscopyarea ioatdma shpchp joydev dcdbas mei_me mei mac_hid lpc_ich acpi_pad wmi lp ext2 parport hid_generic usbhid hid ixgbe igb ahci dca i2c_algo_bit libahci ptp pps_core mdio [ 2423.860767] CPU: 30 PID: 2868 Comm: qemu-system-x86 Tainted: G D 3.11.0-15-generic #25~precise1-Ubuntu [ 2423.869230] Hardware name: Dell Inc. PowerEdge C6220 II/09N44V, BIOS 2.0.3 07/03/2013 [ 2423.877709] task: ffff88101de8c650 ti: ffff88101dcf6000 task.ti: ffff88101dcf6000 [ 2423.886219] RIP: 0010:[<ffffffff8118d0fa>] [<ffffffff8118d0fa>] copy_huge_page+0x8a/0x2a0 [ 2423.894870] RSP: 0018:ffff88101dcf7768 EFLAGS: 00010246 [ 2423.903508] RAX: 0000000000200000 RBX: ffffffff81f9aa20 RCX: 0000000000000012 [ 2423.912224] RDX: ffffffff81f9aa20 RSI: 0000000000001000 RDI: ffffea007bf28000 [ 2423.920978] RBP: ffff88101dcf77b8 R08: 0000000000000000 R09: 0000000000000200 [ 2423.929723] R10: 0000000000000000 R11: 0000000000017960 R12: ffffea007bf28000 [ 2423.938533] R13: 0000000000000001 R14: 020400000008407d R15: ffffea0040430000 [ 2423.947276] FS: 00007f40d4a14700(0000) GS:ffff88203ef40000(0000) knlGS:0000000000000000 [ 2423.956170] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2423.965049] CR2: 0000000000000008 CR3: 0000002024247000 CR4: 00000000001427e0 [ 2423.974071] Stack: [ 2423.982952] ffff88101dcf7788 ffffffff81156460 ffff88207fff8000 ffffea007bf28000 [ 2423.992109] ffff88101dcf7798 ffffea0040430000 ffffea007bf28000 0000000000000001 [ 2424.001262] 020400000008407d ffff88101b341248 ffff88101dcf77e8 ffffffff8119fee9 [ 2424.010524] Call Trace: [ 2424.019660] [<ffffffff81156460>] ? put_compound_page+0x40/0x70 [ 2424.028987] [<ffffffff8119fee9>] migrate_page_copy+0x39/0x250 [ 2424.038322] [<ffffffff811a171c>] migrate_misplaced_transhuge_page+0x16c/0x4d0 [ 2424.047705] [<ffffffff811a4429>] do_huge_pmd_numa_page+0x169/0x2d0 [ 2424.057070] [<ffffffff8116e441>] ? pte_offset_kernel+0x1/0x40 [ 2424.066392] [<ffffffff81174014>] handle_mm_fault+0x2c4/0x3e0 [ 2424.075687] [<ffffffff8105a31a>] ? gup_pmd_range+0xaa/0xf0 [ 2424.084969] [<ffffffff81174378>] __get_user_pages+0x178/0x5c0 [ 2424.094200] [<ffffffff8105a340>] ? gup_pmd_range+0xd0/0xf0 [ 2424.103406] [<ffffffffa0223bee>] hva_to_pfn_slow+0x9e/0x150 [kvm] [ 2424.112654] [<ffffffffa02258e5>] hva_to_pfn+0xd5/0x210 [kvm] [ 2424.121835] [<ffffffffa0225730>] ? kvm_release_pfn_clean+0x50/0x60 [kvm] [ 2424.131042] [<ffffffffa02463c8>] ? mmu_set_spte+0x138/0x270 [kvm] [ 2424.140272] [<ffffffffa0225acd>] __gfn_to_pfn_memslot+0xad/0xb0 [kvm] [ 2424.149499] [<ffffffffa0225b47>] __gfn_to_pfn+0x57/0x70 [kvm] [ 2424.158500] [<ffffffffa0225bba>] gfn_to_pfn_async+0x1a/0x20 [kvm] [ 2424.167356] [<ffffffffa024553a>] try_async_pf+0x4a/0x90 [kvm] [ 2424.176108] [<ffffffffa0227bbb>] ? kvm_host_page_size+0x9b/0xb0 [kvm] [ 2424.184821] [<ffffffffa0247c9b>] tdp_page_fault+0x10b/0x220 [kvm] [ 2424.193567] [<ffffffffa0244861>] kvm_mmu_page_fault+0x31/0x70 [kvm] [ 2424.202318] [<ffffffffa02b83de>] handle_ept_violation+0x7e/0x150 [kvm_intel] [ 2424.211047] [<ffffffffa02bc277>] vmx_handle_exit+0xa7/0x270 [kvm_intel] [ 2424.219700] [<ffffffffa023d1a7>] vcpu_enter_guest+0x447/0x770 [kvm] [ 2424.228314] [<ffffffffa023d688>] __vcpu_run+0x1b8/0x2f0 [kvm] [ 2424.237033] [<ffffffffa023d85d>] kvm_arch_vcpu_ioctl_run+0x9d/0x170 [kvm] [ 2424.245528] [<ffffffffa022614b>] kvm_vcpu_ioctl+0x43b/0x600 [kvm] [ 2424.253757] [<ffffffff811c5f9c>] do_vfs_ioctl+0x7c/0x2f0 [ 2424.261712] [<ffffffff811c62a1>] SyS_ioctl+0x91/0xb0 [ 2424.269378] [<ffffffff81013dc5>] ? do_notify_resume+0x75/0xc0 [ 2424.276860] [<ffffffff8175099d>] system_call_fastpath+0x1a/0x1f [ 2424.284189] Code: f9 81 48 d3 e6 48 39 c6 74 2a be 00 10 00 00 eb 0e 8b 4b 08 48 89 f7 48 d3 e7 48 39 c7 74 15 48 81 c3 60 0b 00 00 48 39 d3 72 e6 <8b> 0c 25 08 00 00 00 31 db 41 bc 01 00 00 00 44 89 e0 d3 e0 3d [ 2424.299626] RIP [<ffffffff8118d0fa>] copy_huge_page+0x8a/0x2a0 [ 2424.306994] RSP <ffff88101dcf7768> [ 2424.314209] CR2: 0000000000000008 [ 2424.321342] ---[ end trace f686f7a0c554a318 ]--- root@arno-3:~# modinfo kvm filename: /lib/modules/3.11.0-15-generic/kernel/arch/x86/kvm/kvm.ko license: GPL author: Qumranet srcversion: 9A23EA37F64E5A410C92557 depends: intree: Y vermagic: 3.11.0-15-generic SMP mod_unload modversions parm: min_timer_period_us:uint parm: ignore_msrs:bool parm: tsc_tolerance_ppm:uint parm: allow_unsafe_assigned_interrupts:Enable device assignment on platforms without interrupt remapping support. (bool) root@arno-3:~# cat /proc/cmdline BOOT_IMAGE=/vmlinuz-3.11.0-15-generic root=/dev/mapper/arno--3--vg-root ro default_hugepagesz=1G hugepagesz=1G hugepages=8 isolcpus=0-15 On Thu, Jul 3, 2014 at 1:08 AM, Wanpeng Li <wanpeng.li@xxxxxxxxxxxxxxx> wrote: > You should also Cc mm ML > On Thu, Jul 03, 2014 at 12:57:04AM -0700, jipan yang wrote: -- 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
