On 10/06/2015 at 12:13 PM, Joerg Roedel wrote: > On Wed, Sep 30, 2015 at 04:52:47PM +0200, Andreas Hartmann wrote: >>> Alternativly someone who can reproduce it should trace the calls to >>> __map_single and __unmap_single in the AMD IOMMU driver to find out >>> whether the addresses which the faults happen on are really mapped, or >>> at least requested from the AMD IOMMU driver. >> >> How can I trace it? > > Please apply the attached debug patch on-top of Linux v4.3-rc3 and boot > the machine. After boot you run (as root): > > > # cat /sys/kernel/debug/tracing/trace_pipe > trace-data > > Please run this in a seperate shell an keep it running. > > Then trigger the problem while the above command is running. When you > triggered it, please send me the (compressed) trace-data file, full > dmesg and output of lspci on the box. Hmm, *seems* to work fine w/ 4.3-rc2. But I have to do some more tests to be really sure. W/ 4.1.10, the problem can be seen most always during boot (systemd) - but at this point, it is difficult to trace. I have to take a closer look to find a place to start the trace already during boot process. But there is another problem w/ 4.3-rc2: Starting a VM w/ PCIe passthrough doesn't work any more. I'm getting the attached null pointer dereference and the machine hangs. Thanks, regards, Andreas
Oct 6 20:11:18 localhost kernel: [ 32.461794] BUG: unable to handle kernel NULL pointer dereference at 00000000000000b8 Oct 6 20:11:18 localhost kernel: [ 32.461853] IP: [<ffffffff8147a8a4>] do_detach+0x24/0xa0 Oct 6 20:11:18 localhost kernel: [ 32.461888] PGD 0 Oct 6 20:11:18 localhost kernel: [ 32.461902] Oops: 0002 [#1] PREEMPT SMP Oct 6 20:11:18 localhost kernel: [ 32.461929] Modules linked in: nf_log_ipv4 nf_log_common xt_LOG ipt_REJECT xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack iptable_filter ip_tables x_tables vfio_iommu_type1 vfio_pci vfio vfio_virqfd drbg ansi_cprng nfsd lockd grace nfs_acl auth_rpcgss sunrpc bridge stp llc tun it87 hwmon_vid snd_hda_codec_hdmi kvm_amd snd_hda_codec_realtek kvm snd_hda_codec_generic fam15h_power usb_storage snd_hda_intel pcspkr serio_raw snd_hda_codec edac_core snd_hda_core edac_mce_amd k10temp snd_hwdep snd_pcm firewire_ohci snd_seq e100 firewire_core crc_itu_t amdkfd sp5100_tco amd_iommu_v2 i2c_piix4 mxm_wmi sr_mod cdrom radeon snd_timer snd_seq_device snd ttm drm_kms_helper xhci_pci drm r8169 xhci_hcd mii fb_sys_fops sysimgblt sysfillrect syscopyarea soundcore i2c_algo_bit shpchp tpm_infineon tpm_tis tpm fjes 8250_fintek wmi button acpi_cpufreq sg thermal xfs libcrc32c linear crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel ohci_pci processor scsi_dh_rdac scsi_dh_hp_sw scsi_dh_emc scsi_dh_alua raid456 async_raid6_recov async_pq async_xor xor async_memcpy async_tx raid6_pq raid10 raid1 raid0 md_mod dm_snapshot dm_bufio dm_mirror dm_region_hash dm_log dm_crypt dm_mod aesni_intel ablk_helper cryptd lrw gf128mul glue_helper aes_x86_64 ata_generic pata_atiixp Oct 6 20:11:18 localhost kernel: [ 32.462728] CPU: 0 PID: 9374 Comm: qemu-system-x86 Not tainted 4.3.0-rc2-4-desktop #1 Oct 6 20:11:18 localhost kernel: [ 32.462767] Hardware name: Gigabyte Technology Co., Ltd. GA-990XA-UD3/GA-990XA-UD3, BIOS F14b 01/24/2013 Oct 6 20:11:18 localhost kernel: [ 32.462814] task: ffff8805f4ecc080 ti: ffff8805e1ec4000 task.ti: ffff8805e1ec4000 Oct 6 20:11:18 localhost kernel: [ 32.462851] RIP: 0010:[<ffffffff8147a8a4>] [<ffffffff8147a8a4>] do_detach+0x24/0xa0 Oct 6 20:11:18 localhost kernel: [ 32.462894] RSP: 0018:ffff8805e1ec7ca0 EFLAGS: 00010006 Oct 6 20:11:18 localhost kernel: [ 32.462922] RAX: 0000000000000000 RBX: ffff880614bef640 RCX: 00000000000000ff Oct 6 20:11:18 localhost kernel: [ 32.462959] RDX: 0000000000000000 RSI: ffff88062e70c098 RDI: ffff880614bef640 Oct 6 20:11:18 localhost kernel: [ 32.462998] RBP: ffff8805e1ec7ca8 R08: ffff880614befc40 R09: 0000000000000000 Oct 6 20:11:18 localhost kernel: [ 32.463033] R10: 0000000000000000 R11: ffffffff81a58df8 R12: ffff880614befc40 Oct 6 20:11:18 localhost kernel: [ 32.463071] R13: ffff8806144b9858 R14: 0000000000000082 R15: ffff88062e70c098 Oct 6 20:11:18 localhost kernel: [ 32.463110] FS: 00007f27cc824b80(0000) GS:ffff88062ec00000(0000) knlGS:0000000000000000 Oct 6 20:11:18 localhost kernel: [ 32.463148] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Oct 6 20:11:18 localhost kernel: [ 32.463177] CR2: 00000000000000b8 CR3: 00000000c8011000 CR4: 00000000000406f0 Oct 6 20:11:18 localhost kernel: [ 32.463211] Stack: Oct 6 20:11:18 localhost kernel: [ 32.463223] ffff880614bef640 ffff8805e1ec7cd8 ffffffff8147a96c ffff880614befc40 Oct 6 20:11:18 localhost kernel: [ 32.463268] ffff88062e70c098 0000000000000286 ffff8806144b9800 ffff8805e1ec7d08 Oct 6 20:11:18 localhost kernel: [ 32.463310] ffffffff8147aaf5 ffff880615dd0bc0 ffff8805e8354a00 ffff880614befc40 Oct 6 20:11:18 localhost kernel: [ 32.463355] Call Trace: Oct 6 20:11:18 localhost kernel: [ 32.463377] [<ffffffff8147a96c>] __detach_device+0x4c/0x80 Oct 6 20:11:18 localhost kernel: [ 32.463412] [<ffffffff8147aaf5>] detach_device+0x35/0xa0 Oct 6 20:11:18 localhost kernel: [ 32.463444] [<ffffffff8147b706>] amd_iommu_attach_device+0x66/0x2b0 Oct 6 20:11:18 localhost kernel: [ 32.463481] [<ffffffff81475d8e>] __iommu_attach_device+0x1e/0x80 Oct 6 20:11:18 localhost kernel: [ 32.463513] [<ffffffff81477013>] __iommu_attach_group+0x53/0x80 Oct 6 20:11:18 localhost kernel: [ 32.463547] [<ffffffff8147706b>] iommu_attach_group+0x2b/0x40 Oct 6 20:11:18 localhost kernel: [ 32.463583] [<ffffffffa07e9407>] vfio_iommu_type1_attach_group+0x187/0x4f8 [vfio_iommu_type1] Oct 6 20:11:18 localhost kernel: [ 32.463655] [<ffffffffa07297e8>] vfio_fops_unl_ioctl+0x1b8/0x290 [vfio] Oct 6 20:11:18 localhost kernel: [ 32.463699] [<ffffffff811f81cd>] do_vfs_ioctl+0x2cd/0x4c0 Oct 6 20:11:18 localhost kernel: [ 32.463740] [<ffffffff811f8439>] SyS_ioctl+0x79/0x90 Oct 6 20:11:18 localhost kernel: [ 32.463775] [<ffffffff816b3936>] entry_SYSCALL_64_fastpath+0x16/0x75 Oct 6 20:11:18 localhost kernel: [ 32.466223] DWARF2 unwinder stuck at entry_SYSCALL_64_fastpath+0x16/0x75 Oct 6 20:11:18 localhost kernel: [ 32.466258] Oct 6 20:11:18 localhost kernel: [ 32.466267] Leftover inexact backtrace: Oct 6 20:11:18 localhost kernel: [ 32.466267] Oct 6 20:11:18 localhost kernel: [ 32.466298] Code: 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 8b 05 23 c7 d9 00 48 89 e5 53 0f b7 57 40 48 89 fb 48 8b 04 d0 48 63 50 10 48 8b 47 38 <83> ac 90 b8 00 00 00 01 48 8b 47 38 83 a8 b4 00 00 00 01 48 8b Oct 6 20:11:18 localhost kernel: [ 32.466496] RIP [<ffffffff8147a8a4>] do_detach+0x24/0xa0 Oct 6 20:11:18 localhost kernel: [ 32.466527] RSP <ffff8805e1ec7ca0> Oct 6 20:11:18 localhost kernel: [ 32.466547] CR2: 00000000000000b8 Oct 6 20:11:18 localhost kernel: [ 32.476984] ---[ end trace 09ac28af2000b365 ]--- Oct 6 20:11:18 localhost kernel: [ 32.477031] note: qemu-system-x86[9374] exited with preempt_count 2 Oct 6 20:11:19 localhost kernel: [ 32.577276] walk_shadow_page_get_mmio_spte: detect reserved bits on spte, addr 0xb8000, dump hierarchy: Oct 6 20:11:19 localhost kernel: [ 32.577279] ------ spte 0x5db618027 level 4. Oct 6 20:11:19 localhost kernel: [ 32.577281] ------ spte 0x5db619027 level 3. Oct 6 20:11:19 localhost kernel: [ 32.577281] ------ spte 0x5db61a027 level 2. Oct 6 20:11:19 localhost kernel: [ 32.577282] ------ spte 0xffff0000000b8f6f level 1. Oct 6 20:11:19 localhost kernel: [ 32.577283] ------------[ cut here ]------------ Oct 6 20:11:19 localhost kernel: [ 32.577301] WARNING: CPU: 2 PID: 9389 at ../arch/x86/kvm/mmu.c:3385 handle_mmio_page_fault.isra.85+0x2c/0x31 [kvm]() Oct 6 20:11:19 localhost kernel: [ 32.577302] Modules linked in: nf_log_ipv4 nf_log_common xt_LOG ipt_REJECT xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack iptable_filter ip_tables x_tables vfio_iommu_type1 vfio_pci vfio vfio_virqfd drbg ansi_cprng nfsd lockd grace nfs_acl auth_rpcgss sunrpc bridge stp llc tun it87 hwmon_vid snd_hda_codec_hdmi kvm_amd snd_hda_codec_realtek kvm snd_hda_codec_generic fam15h_power usb_storage snd_hda_intel pcspkr serio_raw snd_hda_codec edac_core snd_hda_core edac_mce_amd k10temp snd_hwdep snd_pcm firewire_ohci snd_seq e100 firewire_core crc_itu_t amdkfd sp5100_tco amd_iommu_v2 i2c_piix4 mxm_wmi sr_mod cdrom radeon snd_timer snd_seq_device snd ttm drm_kms_helper xhci_pci drm r8169 xhci_hcd mii fb_sys_fops sysimgblt sysfillrect syscopyarea soundcore i2c_algo_bit shpchp tpm_infineon tpm_tis tpm fjes 8250_fintek wmi button acpi_cpufreq sg thermal xfs libcrc32c linear crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel ohci_pci processor scsi_dh_rdac scsi_dh_hp_sw scsi_dh_emc scsi_dh_alua raid456 async_raid6_recov async_pq async_xor xor async_memcpy async_tx raid6_pq raid10 raid1 raid0 md_mod dm_snapshot dm_bufio dm_mirror dm_region_hash dm_log dm_crypt dm_mod aesni_intel ablk_helper cryptd lrw gf128mul glue_helper aes_x86_64 ata_generic pata_atiixp Oct 6 20:11:19 localhost kernel: [ 32.577357] CPU: 2 PID: 9389 Comm: qemu-system-x86 Tainted: G D 4.3.0-rc2-4-desktop #1 Oct 6 20:11:19 localhost kernel: [ 32.577358] Hardware name: Gigabyte Technology Co., Ltd. GA-990XA-UD3/GA-990XA-UD3, BIOS F14b 01/24/2013 Oct 6 20:11:19 localhost kernel: [ 32.577360] ffffffffa083f3ce ffff8805e0f43ba0 ffffffff81368633 0000000000000000 Oct 6 20:11:19 localhost kernel: [ 32.577362] ffff8805e0f43bd8 ffffffff8106a628 ffff8805e2a70040 00000000000b8000 Oct 6 20:11:19 localhost kernel: [ 32.577364] 0000000000000000 000000000000000f 000000000000000f ffff8805e0f43be8 Oct 6 20:11:19 localhost kernel: [ 32.577366] Call Trace: Oct 6 20:11:19 localhost kernel: [ 32.577374] [<ffffffff810085ee>] try_stack_unwind+0x17e/0x190 Oct 6 20:11:19 localhost kernel: [ 32.577379] [<ffffffff8100737f>] dump_trace+0x8f/0x3b0 Oct 6 20:11:19 localhost kernel: [ 32.577382] [<ffffffff8100864d>] show_trace_log_lvl+0x4d/0x60 Oct 6 20:11:19 localhost kernel: [ 32.577385] [<ffffffff810077a1>] show_stack_log_lvl+0x101/0x190 Oct 6 20:11:19 localhost kernel: [ 32.577387] [<ffffffff810086a5>] show_stack+0x25/0x50 Oct 6 20:11:19 localhost kernel: [ 32.577390] [<ffffffff81368633>] dump_stack+0x4b/0x78 Oct 6 20:11:19 localhost kernel: [ 32.577394] [<ffffffff8106a628>] warn_slowpath_common+0x88/0xc0 Oct 6 20:11:19 localhost kernel: [ 32.577397] [<ffffffff8106a71a>] warn_slowpath_null+0x1a/0x20 Oct 6 20:11:19 localhost kernel: [ 32.577408] [<ffffffffa08318eb>] handle_mmio_page_fault.isra.85+0x2c/0x31 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.577427] [<ffffffffa0816106>] tdp_page_fault+0x246/0x260 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.577441] [<ffffffffa080fbd4>] kvm_mmu_page_fault+0x24/0x110 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.577446] [<ffffffffa0cdbfc9>] pf_interception+0xc9/0x150 [kvm_amd] Oct 6 20:11:19 localhost kernel: [ 32.577451] [<ffffffffa0cdf5a0>] handle_exit+0x180/0x9b0 [kvm_amd] Oct 6 20:11:19 localhost kernel: [ 32.577462] [<ffffffffa0805dd9>] vcpu_enter_guest+0x769/0xde0 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.577475] [<ffffffffa080c62a>] kvm_arch_vcpu_ioctl_run+0x2da/0x400 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.577486] [<ffffffffa07f4d8f>] kvm_vcpu_ioctl+0x30f/0x5c0 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.577490] [<ffffffff811f81cd>] do_vfs_ioctl+0x2cd/0x4c0 Oct 6 20:11:19 localhost kernel: [ 32.577497] [<ffffffff811f8439>] SyS_ioctl+0x79/0x90 Oct 6 20:11:19 localhost kernel: [ 32.577500] [<ffffffff816b3936>] entry_SYSCALL_64_fastpath+0x16/0x75 Oct 6 20:11:19 localhost kernel: [ 32.578805] DWARF2 unwinder stuck at entry_SYSCALL_64_fastpath+0x16/0x75 Oct 6 20:11:19 localhost kernel: [ 32.578806] Oct 6 20:11:19 localhost kernel: [ 32.578806] Leftover inexact backtrace: Oct 6 20:11:19 localhost kernel: [ 32.578806] Oct 6 20:11:19 localhost kernel: [ 32.578808] ---[ end trace 09ac28af2000b366 ]--- Oct 6 20:11:19 localhost kernel: [ 32.655728] walk_shadow_page_get_mmio_spte: detect reserved bits on spte, addr 0xb8000, dump hierarchy: Oct 6 20:11:19 localhost kernel: [ 32.655731] ------ spte 0x5e6703027 level 4. Oct 6 20:11:19 localhost kernel: [ 32.655732] ------ spte 0x5e5fb8027 level 3. Oct 6 20:11:19 localhost kernel: [ 32.655733] ------ spte 0x5e5fb9027 level 2. Oct 6 20:11:19 localhost kernel: [ 32.655734] ------ spte 0xffff0000000b8f67 level 1. Oct 6 20:11:19 localhost kernel: [ 32.655735] ------------[ cut here ]------------ Oct 6 20:11:19 localhost kernel: [ 32.655764] WARNING: CPU: 2 PID: 9390 at ../arch/x86/kvm/mmu.c:3385 handle_mmio_page_fault.isra.85+0x2c/0x31 [kvm]() Oct 6 20:11:19 localhost kernel: [ 32.655765] Modules linked in: nf_log_ipv4 nf_log_common xt_LOG ipt_REJECT xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack iptable_filter ip_tables x_tables vfio_iommu_type1 vfio_pci vfio vfio_virqfd drbg ansi_cprng nfsd lockd grace nfs_acl auth_rpcgss sunrpc bridge stp llc tun it87 hwmon_vid snd_hda_codec_hdmi kvm_amd snd_hda_codec_realtek kvm snd_hda_codec_generic fam15h_power usb_storage snd_hda_intel pcspkr serio_raw snd_hda_codec edac_core snd_hda_core edac_mce_amd k10temp snd_hwdep snd_pcm firewire_ohci snd_seq e100 firewire_core crc_itu_t amdkfd sp5100_tco amd_iommu_v2 i2c_piix4 mxm_wmi sr_mod cdrom radeon snd_timer snd_seq_device snd ttm drm_kms_helper xhci_pci drm r8169 xhci_hcd mii fb_sys_fops sysimgblt sysfillrect syscopyarea soundcore i2c_algo_bit shpchp tpm_infineon tpm_tis tpm fjes 8250_fintek wmi button acpi_cpufreq sg thermal xfs libcrc32c linear crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel ohci_pci processor scsi_dh_rdac scsi_dh_hp_sw scsi_dh_emc scsi_dh_alua raid456 async_raid6_recov async_pq async_xor xor async_memcpy async_tx raid6_pq raid10 raid1 raid0 md_mod dm_snapshot dm_bufio dm_mirror dm_region_hash dm_log dm_crypt dm_mod aesni_intel ablk_helper cryptd lrw gf128mul glue_helper aes_x86_64 ata_generic pata_atiixp Oct 6 20:11:19 localhost kernel: [ 32.655823] CPU: 2 PID: 9390 Comm: qemu-system-x86 Tainted: G D W 4.3.0-rc2-4-desktop #1 Oct 6 20:11:19 localhost kernel: [ 32.655824] Hardware name: Gigabyte Technology Co., Ltd. GA-990XA-UD3/GA-990XA-UD3, BIOS F14b 01/24/2013 Oct 6 20:11:19 localhost kernel: [ 32.655826] ffffffffa083f3ce ffff8805e221fba0 ffffffff81368633 0000000000000000 Oct 6 20:11:19 localhost kernel: [ 32.655828] ffff8805e221fbd8 ffffffff8106a628 ffff8805e1e30080 00000000000b8000 Oct 6 20:11:19 localhost kernel: [ 32.655830] 0000000000000000 000000000000000f 000000000000000f ffff8805e221fbe8 Oct 6 20:11:19 localhost kernel: [ 32.655832] Call Trace: Oct 6 20:11:19 localhost kernel: [ 32.655840] [<ffffffff810085ee>] try_stack_unwind+0x17e/0x190 Oct 6 20:11:19 localhost kernel: [ 32.655845] [<ffffffff8100737f>] dump_trace+0x8f/0x3b0 Oct 6 20:11:19 localhost kernel: [ 32.655848] [<ffffffff8100864d>] show_trace_log_lvl+0x4d/0x60 Oct 6 20:11:19 localhost kernel: [ 32.655852] [<ffffffff810077a1>] show_stack_log_lvl+0x101/0x190 Oct 6 20:11:19 localhost kernel: [ 32.655864] [<ffffffff810086a5>] show_stack+0x25/0x50 Oct 6 20:11:19 localhost kernel: [ 32.655869] [<ffffffff81368633>] dump_stack+0x4b/0x78 Oct 6 20:11:19 localhost kernel: [ 32.655877] [<ffffffff8106a628>] warn_slowpath_common+0x88/0xc0 Oct 6 20:11:19 localhost kernel: [ 32.655881] [<ffffffff8106a71a>] warn_slowpath_null+0x1a/0x20 Oct 6 20:11:19 localhost kernel: [ 32.655894] [<ffffffffa08318eb>] handle_mmio_page_fault.isra.85+0x2c/0x31 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.655917] [<ffffffffa0816106>] tdp_page_fault+0x246/0x260 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.655940] [<ffffffffa080fbd4>] kvm_mmu_page_fault+0x24/0x110 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.655956] [<ffffffffa0cdbfc9>] pf_interception+0xc9/0x150 [kvm_amd] Oct 6 20:11:19 localhost kernel: [ 32.655965] [<ffffffffa0cdf5a0>] handle_exit+0x180/0x9b0 [kvm_amd] Oct 6 20:11:19 localhost kernel: [ 32.655983] [<ffffffffa0805dd9>] vcpu_enter_guest+0x769/0xde0 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.656000] [<ffffffffa080c62a>] kvm_arch_vcpu_ioctl_run+0x2da/0x400 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.656012] [<ffffffffa07f4d8f>] kvm_vcpu_ioctl+0x30f/0x5c0 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.656017] [<ffffffff811f81cd>] do_vfs_ioctl+0x2cd/0x4c0 Oct 6 20:11:19 localhost kernel: [ 32.656023] [<ffffffff811f8439>] SyS_ioctl+0x79/0x90 Oct 6 20:11:19 localhost kernel: [ 32.656028] [<ffffffff816b3936>] entry_SYSCALL_64_fastpath+0x16/0x75 Oct 6 20:11:19 localhost kernel: [ 32.657322] DWARF2 unwinder stuck at entry_SYSCALL_64_fastpath+0x16/0x75 Oct 6 20:11:19 localhost kernel: [ 32.657324] Oct 6 20:11:19 localhost kernel: [ 32.657324] Leftover inexact backtrace: Oct 6 20:11:19 localhost kernel: [ 32.657324] Oct 6 20:11:19 localhost kernel: [ 32.657327] ---[ end trace 09ac28af2000b367 ]--- Oct 6 20:11:19 localhost kernel: [ 32.715379] walk_shadow_page_get_mmio_spte: detect reserved bits on spte, addr 0xb8000, dump hierarchy: Oct 6 20:11:19 localhost kernel: [ 32.715382] ------ spte 0x5e6707027 level 4. Oct 6 20:11:19 localhost kernel: [ 32.715383] ------ spte 0x5e5781027 level 3. Oct 6 20:11:19 localhost kernel: [ 32.715384] ------ spte 0x5e2291027 level 2. Oct 6 20:11:19 localhost kernel: [ 32.715385] ------ spte 0xffff0000000b8f67 level 1. Oct 6 20:11:19 localhost kernel: [ 32.715386] ------------[ cut here ]------------ Oct 6 20:11:19 localhost kernel: [ 32.715405] WARNING: CPU: 2 PID: 9393 at ../arch/x86/kvm/mmu.c:3385 handle_mmio_page_fault.isra.85+0x2c/0x31 [kvm]() Oct 6 20:11:19 localhost kernel: [ 32.715407] Modules linked in: nf_log_ipv4 nf_log_common xt_LOG ipt_REJECT xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack iptable_filter ip_tables x_tables vfio_iommu_type1 vfio_pci vfio vfio_virqfd drbg ansi_cprng nfsd lockd grace nfs_acl auth_rpcgss sunrpc bridge stp llc tun it87 hwmon_vid snd_hda_codec_hdmi kvm_amd snd_hda_codec_realtek kvm snd_hda_codec_generic fam15h_power usb_storage snd_hda_intel pcspkr serio_raw snd_hda_codec edac_core snd_hda_core edac_mce_amd k10temp snd_hwdep snd_pcm firewire_ohci snd_seq e100 firewire_core crc_itu_t amdkfd sp5100_tco amd_iommu_v2 i2c_piix4 mxm_wmi sr_mod cdrom radeon snd_timer snd_seq_device snd ttm drm_kms_helper xhci_pci drm r8169 xhci_hcd mii fb_sys_fops sysimgblt sysfillrect syscopyarea soundcore i2c_algo_bit shpchp tpm_infineon tpm_tis tpm fjes 8250_fintek wmi button acpi_cpufreq sg thermal xfs libcrc32c linear crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel ohci_pci processor scsi_dh_rdac scsi_dh_hp_sw scsi_dh_emc scsi_dh_alua raid456 async_raid6_recov async_pq async_xor xor async_memcpy async_tx raid6_pq raid10 raid1 raid0 md_mod dm_snapshot dm_bufio dm_mirror dm_region_hash dm_log dm_crypt dm_mod aesni_intel ablk_helper cryptd lrw gf128mul glue_helper aes_x86_64 ata_generic pata_atiixp Oct 6 20:11:19 localhost kernel: [ 32.715461] CPU: 2 PID: 9393 Comm: qemu-system-x86 Tainted: G D W 4.3.0-rc2-4-desktop #1 Oct 6 20:11:19 localhost kernel: [ 32.715462] Hardware name: Gigabyte Technology Co., Ltd. GA-990XA-UD3/GA-990XA-UD3, BIOS F14b 01/24/2013 Oct 6 20:11:19 localhost kernel: [ 32.715464] ffffffffa083f3ce ffff8805e93afba0 ffffffff81368633 0000000000000000 Oct 6 20:11:19 localhost kernel: [ 32.715466] ffff8805e93afbd8 ffffffff8106a628 ffff8805ec604140 00000000000b8000 Oct 6 20:11:19 localhost kernel: [ 32.715468] 0000000000000000 000000000000000f 000000000000000f ffff8805e93afbe8 Oct 6 20:11:19 localhost kernel: [ 32.715470] Call Trace: Oct 6 20:11:19 localhost kernel: [ 32.715478] [<ffffffff810085ee>] try_stack_unwind+0x17e/0x190 Oct 6 20:11:19 localhost kernel: [ 32.715483] [<ffffffff8100737f>] dump_trace+0x8f/0x3b0 Oct 6 20:11:19 localhost kernel: [ 32.715486] [<ffffffff8100864d>] show_trace_log_lvl+0x4d/0x60 Oct 6 20:11:19 localhost kernel: [ 32.715488] [<ffffffff810077a1>] show_stack_log_lvl+0x101/0x190 Oct 6 20:11:19 localhost kernel: [ 32.715491] [<ffffffff810086a5>] show_stack+0x25/0x50 Oct 6 20:11:19 localhost kernel: [ 32.715494] [<ffffffff81368633>] dump_stack+0x4b/0x78 Oct 6 20:11:19 localhost kernel: [ 32.715498] [<ffffffff8106a628>] warn_slowpath_common+0x88/0xc0 Oct 6 20:11:19 localhost kernel: [ 32.715501] [<ffffffff8106a71a>] warn_slowpath_null+0x1a/0x20 Oct 6 20:11:19 localhost kernel: [ 32.715512] [<ffffffffa08318eb>] handle_mmio_page_fault.isra.85+0x2c/0x31 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.715532] [<ffffffffa0816106>] tdp_page_fault+0x246/0x260 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.715546] [<ffffffffa080fbd4>] kvm_mmu_page_fault+0x24/0x110 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.715551] [<ffffffffa0cdbfc9>] pf_interception+0xc9/0x150 [kvm_amd] Oct 6 20:11:19 localhost kernel: [ 32.715556] [<ffffffffa0cdf5a0>] handle_exit+0x180/0x9b0 [kvm_amd] Oct 6 20:11:19 localhost kernel: [ 32.715567] [<ffffffffa0805dd9>] vcpu_enter_guest+0x769/0xde0 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.715580] [<ffffffffa080c62a>] kvm_arch_vcpu_ioctl_run+0x2da/0x400 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.715590] [<ffffffffa07f4d8f>] kvm_vcpu_ioctl+0x30f/0x5c0 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.715595] [<ffffffff811f81cd>] do_vfs_ioctl+0x2cd/0x4c0 Oct 6 20:11:19 localhost kernel: [ 32.715602] [<ffffffff811f8439>] SyS_ioctl+0x79/0x90 Oct 6 20:11:19 localhost kernel: [ 32.715606] [<ffffffff816b3936>] entry_SYSCALL_64_fastpath+0x16/0x75 Oct 6 20:11:19 localhost kernel: [ 32.716901] DWARF2 unwinder stuck at entry_SYSCALL_64_fastpath+0x16/0x75 Oct 6 20:11:19 localhost kernel: [ 32.716902] Oct 6 20:11:19 localhost kernel: [ 32.716902] Leftover inexact backtrace: Oct 6 20:11:19 localhost kernel: [ 32.716902] Oct 6 20:11:19 localhost kernel: [ 32.716904] ---[ end trace 09ac28af2000b368 ]---
