From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mout0.freenet.de ([195.4.92.90]:57725 "EHLO mout0.freenet.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750810AbbJFSnj (ORCPT ); Tue, 6 Oct 2015 14:43:39 -0400 Subject: Re: [dm-devel] AMD-Vi IO_PAGE_FAULTs and ata3.00: failed command: READ FPDMA QUEUED errors since Linux 4.0 To: Joerg Roedel References: <55B7D054.4070308@maya.org> <20150728192908.GA25264@redhat.com> <55BCD5A7.2080708@maya.org> <55BE1D5E.6020709@maya.org> <55FE5740.2060701@maya.org> <20150929152100.GL3036@8bytes.org> <20150929162042.GR3036@8bytes.org> <560BF73F.8000008@maya.org> <20151006101356.GE12506@8bytes.org> Cc: Mikulas Patocka , iommu@lists.linux-foundation.org, Leo Duran , Christoph Hellwig , device-mapper development , Milan Broz , Jens Axboe , linux-pci , Linus Torvalds From: Andreas Hartmann Message-ID: <56141507.7040103@maya.org> Date: Tue, 6 Oct 2015 20:37:59 +0200 MIME-Version: 1.0 In-Reply-To: <20151006101356.GE12506@8bytes.org> Content-Type: multipart/mixed; boundary="------------000703020406070003070803" Sender: linux-pci-owner@vger.kernel.org List-ID: This is a multi-part message in MIME format. --------------000703020406070003070803 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 8bit 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 --------------000703020406070003070803 Content-Type: text/plain; charset=UTF-8; name="trace" Content-Transfer-Encoding: quoted-printable Content-Disposition: attachment; filename="trace" Oct 6 20:11:18 localhost kernel: [ 32.461794] BUG: unable to handle ke= rnel NULL pointer dereference at 00000000000000b8 Oct 6 20:11:18 localhost kernel: [ 32.461853] IP: []= do_detach+0x24/0xa0 Oct 6 20:11:18 localhost kernel: [ 32.461888] PGD 0=20 Oct 6 20:11:18 localhost kernel: [ 32.461902] Oops: 0002 [#1] PREEMPT = SMP=20 Oct 6 20:11:18 localhost kernel: [ 32.461929] Modules linked in: nf_lo= g_ipv4 nf_log_common xt_LOG ipt_REJECT xt_tcpudp nf_conntrack_ipv4 nf_def= rag_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 n= fs_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_powe= r 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 e10= 0 firewire_core crc_itu_t amdkfd sp5100_tco amd_iommu_v2 i2c_piix4 mxm_wm= i sr_mod cdrom radeon snd_timer snd_seq_device snd ttm drm_kms_helper xhc= i_pci drm r8169 xhci_hcd mii fb_sys_fops sysimgblt sysfillrect syscopyare= a 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 as= ync_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_g= eneric pata_atiixp Oct 6 20:11:18 localhost kernel: [ 32.462728] CPU: 0 PID: 9374 Comm: q= emu-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 t= i: ffff8805e1ec4000 task.ti: ffff8805e1ec4000 Oct 6 20:11:18 localhost kernel: [ 32.462851] RIP: 0010:[] [] do_detach+0x24/0xa0 Oct 6 20:11:18 localhost kernel: [ 32.462894] RSP: 0018:ffff8805e1ec7c= a0 EFLAGS: 00010006 Oct 6 20:11:18 localhost kernel: [ 32.462922] RAX: 0000000000000000 RB= X: ffff880614bef640 RCX: 00000000000000ff Oct 6 20:11:18 localhost kernel: [ 32.462959] RDX: 0000000000000000 RS= I: ffff88062e70c098 RDI: ffff880614bef640 Oct 6 20:11:18 localhost kernel: [ 32.462998] RBP: ffff8805e1ec7ca8 R0= 8: ffff880614befc40 R09: 0000000000000000 Oct 6 20:11:18 localhost kernel: [ 32.463033] R10: 0000000000000000 R1= 1: ffffffff81a58df8 R12: ffff880614befc40 Oct 6 20:11:18 localhost kernel: [ 32.463071] R13: ffff8806144b9858 R1= 4: 0000000000000082 R15: ffff88062e70c098 Oct 6 20:11:18 localhost kernel: [ 32.463110] FS: 00007f27cc824b80(00= 00) GS:ffff88062ec00000(0000) knlGS:0000000000000000 Oct 6 20:11:18 localhost kernel: [ 32.463148] CS: 0010 DS: 0000 ES: 0= 000 CR0: 0000000080050033 Oct 6 20:11:18 localhost kernel: [ 32.463177] CR2: 00000000000000b8 CR= 3: 00000000c8011000 CR4: 00000000000406f0 Oct 6 20:11:18 localhost kernel: [ 32.463211] Stack: Oct 6 20:11:18 localhost kernel: [ 32.463223] ffff880614bef640 ffff88= 05e1ec7cd8 ffffffff8147a96c ffff880614befc40 Oct 6 20:11:18 localhost kernel: [ 32.463268] ffff88062e70c098 000000= 0000000286 ffff8806144b9800 ffff8805e1ec7d08 Oct 6 20:11:18 localhost kernel: [ 32.463310] ffffffff8147aaf5 ffff88= 0615dd0bc0 ffff8805e8354a00 ffff880614befc40 Oct 6 20:11:18 localhost kernel: [ 32.463355] Call Trace: Oct 6 20:11:18 localhost kernel: [ 32.463377] [] __= detach_device+0x4c/0x80 Oct 6 20:11:18 localhost kernel: [ 32.463412] [] de= tach_device+0x35/0xa0 Oct 6 20:11:18 localhost kernel: [ 32.463444] [] am= d_iommu_attach_device+0x66/0x2b0 Oct 6 20:11:18 localhost kernel: [ 32.463481] [] __= iommu_attach_device+0x1e/0x80 Oct 6 20:11:18 localhost kernel: [ 32.463513] [] __= iommu_attach_group+0x53/0x80 Oct 6 20:11:18 localhost kernel: [ 32.463547] [] io= mmu_attach_group+0x2b/0x40 Oct 6 20:11:18 localhost kernel: [ 32.463583] [] vf= io_iommu_type1_attach_group+0x187/0x4f8 [vfio_iommu_type1] Oct 6 20:11:18 localhost kernel: [ 32.463655] [] vf= io_fops_unl_ioctl+0x1b8/0x290 [vfio] Oct 6 20:11:18 localhost kernel: [ 32.463699] [] do= _vfs_ioctl+0x2cd/0x4c0 Oct 6 20:11:18 localhost kernel: [ 32.463740] [] Sy= S_ioctl+0x79/0x90 Oct 6 20:11:18 localhost kernel: [ 32.463775] [] en= try_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]=20 Oct 6 20:11:18 localhost kernel: [ 32.466267] Leftover inexact backtra= ce: Oct 6 20:11:18 localhost kernel: [ 32.466267]=20 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 f= b 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=20 Oct 6 20:11:18 localhost kernel: [ 32.466496] RIP [= ] do_detach+0x24/0xa0 Oct 6 20:11:18 localhost kernel: [ 32.466527] RSP Oct 6 20:11:18 localhost kernel: [ 32.466547] CR2: 00000000000000b8 Oct 6 20:11:18 localhost kernel: [ 32.476984] ---[ end trace 09ac28af2= 000b365 ]--- Oct 6 20:11:18 localhost kernel: [ 32.477031] note: qemu-system-x86[93= 74] exited with preempt_count 2 Oct 6 20:11:19 localhost kernel: [ 32.577276] walk_shadow_page_get_mmi= o_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 0xffff000000= 0b8f6f 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: 938= 9 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_lo= g_ipv4 nf_log_common xt_LOG ipt_REJECT xt_tcpudp nf_conntrack_ipv4 nf_def= rag_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 n= fs_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_powe= r 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 e10= 0 firewire_core crc_itu_t amdkfd sp5100_tco amd_iommu_v2 i2c_piix4 mxm_wm= i sr_mod cdrom radeon snd_timer snd_seq_device snd ttm drm_kms_helper xhc= i_pci drm r8169 xhci_hcd mii fb_sys_fops sysimgblt sysfillrect syscopyare= a 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 as= ync_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_g= eneric pata_atiixp Oct 6 20:11:19 localhost kernel: [ 32.577357] CPU: 2 PID: 9389 Comm: q= emu-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 ffff88= 05e0f43ba0 ffffffff81368633 0000000000000000 Oct 6 20:11:19 localhost kernel: [ 32.577362] ffff8805e0f43bd8 ffffff= ff8106a628 ffff8805e2a70040 00000000000b8000 Oct 6 20:11:19 localhost kernel: [ 32.577364] 0000000000000000 000000= 000000000f 000000000000000f ffff8805e0f43be8 Oct 6 20:11:19 localhost kernel: [ 32.577366] Call Trace: Oct 6 20:11:19 localhost kernel: [ 32.577374] [] tr= y_stack_unwind+0x17e/0x190 Oct 6 20:11:19 localhost kernel: [ 32.577379] [] du= mp_trace+0x8f/0x3b0 Oct 6 20:11:19 localhost kernel: [ 32.577382] [] sh= ow_trace_log_lvl+0x4d/0x60 Oct 6 20:11:19 localhost kernel: [ 32.577385] [] sh= ow_stack_log_lvl+0x101/0x190 Oct 6 20:11:19 localhost kernel: [ 32.577387] [] sh= ow_stack+0x25/0x50 Oct 6 20:11:19 localhost kernel: [ 32.577390] [] du= mp_stack+0x4b/0x78 Oct 6 20:11:19 localhost kernel: [ 32.577394] [] wa= rn_slowpath_common+0x88/0xc0 Oct 6 20:11:19 localhost kernel: [ 32.577397] [] wa= rn_slowpath_null+0x1a/0x20 Oct 6 20:11:19 localhost kernel: [ 32.577408] [] ha= ndle_mmio_page_fault.isra.85+0x2c/0x31 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.577427] [] td= p_page_fault+0x246/0x260 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.577441] [] kv= m_mmu_page_fault+0x24/0x110 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.577446] [] pf= _interception+0xc9/0x150 [kvm_amd] Oct 6 20:11:19 localhost kernel: [ 32.577451] [] ha= ndle_exit+0x180/0x9b0 [kvm_amd] Oct 6 20:11:19 localhost kernel: [ 32.577462] [] vc= pu_enter_guest+0x769/0xde0 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.577475] [] kv= m_arch_vcpu_ioctl_run+0x2da/0x400 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.577486] [] kv= m_vcpu_ioctl+0x30f/0x5c0 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.577490] [] do= _vfs_ioctl+0x2cd/0x4c0 Oct 6 20:11:19 localhost kernel: [ 32.577497] [] Sy= S_ioctl+0x79/0x90 Oct 6 20:11:19 localhost kernel: [ 32.577500] [] en= try_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]=20 Oct 6 20:11:19 localhost kernel: [ 32.578806] Leftover inexact backtra= ce: Oct 6 20:11:19 localhost kernel: [ 32.578806]=20 Oct 6 20:11:19 localhost kernel: [ 32.578808] ---[ end trace 09ac28af2= 000b366 ]--- Oct 6 20:11:19 localhost kernel: [ 32.655728] walk_shadow_page_get_mmi= o_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 0xffff000000= 0b8f67 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: 939= 0 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_lo= g_ipv4 nf_log_common xt_LOG ipt_REJECT xt_tcpudp nf_conntrack_ipv4 nf_def= rag_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 n= fs_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_powe= r 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 e10= 0 firewire_core crc_itu_t amdkfd sp5100_tco amd_iommu_v2 i2c_piix4 mxm_wm= i sr_mod cdrom radeon snd_timer snd_seq_device snd ttm drm_kms_helper xhc= i_pci drm r8169 xhci_hcd mii fb_sys_fops sysimgblt sysfillrect syscopyare= a 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 as= ync_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_g= eneric pata_atiixp Oct 6 20:11:19 localhost kernel: [ 32.655823] CPU: 2 PID: 9390 Comm: q= emu-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 ffff88= 05e221fba0 ffffffff81368633 0000000000000000 Oct 6 20:11:19 localhost kernel: [ 32.655828] ffff8805e221fbd8 ffffff= ff8106a628 ffff8805e1e30080 00000000000b8000 Oct 6 20:11:19 localhost kernel: [ 32.655830] 0000000000000000 000000= 000000000f 000000000000000f ffff8805e221fbe8 Oct 6 20:11:19 localhost kernel: [ 32.655832] Call Trace: Oct 6 20:11:19 localhost kernel: [ 32.655840] [] tr= y_stack_unwind+0x17e/0x190 Oct 6 20:11:19 localhost kernel: [ 32.655845] [] du= mp_trace+0x8f/0x3b0 Oct 6 20:11:19 localhost kernel: [ 32.655848] [] sh= ow_trace_log_lvl+0x4d/0x60 Oct 6 20:11:19 localhost kernel: [ 32.655852] [] sh= ow_stack_log_lvl+0x101/0x190 Oct 6 20:11:19 localhost kernel: [ 32.655864] [] sh= ow_stack+0x25/0x50 Oct 6 20:11:19 localhost kernel: [ 32.655869] [] du= mp_stack+0x4b/0x78 Oct 6 20:11:19 localhost kernel: [ 32.655877] [] wa= rn_slowpath_common+0x88/0xc0 Oct 6 20:11:19 localhost kernel: [ 32.655881] [] wa= rn_slowpath_null+0x1a/0x20 Oct 6 20:11:19 localhost kernel: [ 32.655894] [] ha= ndle_mmio_page_fault.isra.85+0x2c/0x31 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.655917] [] td= p_page_fault+0x246/0x260 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.655940] [] kv= m_mmu_page_fault+0x24/0x110 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.655956] [] pf= _interception+0xc9/0x150 [kvm_amd] Oct 6 20:11:19 localhost kernel: [ 32.655965] [] ha= ndle_exit+0x180/0x9b0 [kvm_amd] Oct 6 20:11:19 localhost kernel: [ 32.655983] [] vc= pu_enter_guest+0x769/0xde0 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.656000] [] kv= m_arch_vcpu_ioctl_run+0x2da/0x400 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.656012] [] kv= m_vcpu_ioctl+0x30f/0x5c0 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.656017] [] do= _vfs_ioctl+0x2cd/0x4c0 Oct 6 20:11:19 localhost kernel: [ 32.656023] [] Sy= S_ioctl+0x79/0x90 Oct 6 20:11:19 localhost kernel: [ 32.656028] [] en= try_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]=20 Oct 6 20:11:19 localhost kernel: [ 32.657324] Leftover inexact backtra= ce: Oct 6 20:11:19 localhost kernel: [ 32.657324]=20 Oct 6 20:11:19 localhost kernel: [ 32.657327] ---[ end trace 09ac28af2= 000b367 ]--- Oct 6 20:11:19 localhost kernel: [ 32.715379] walk_shadow_page_get_mmi= o_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 0xffff000000= 0b8f67 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: 939= 3 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_lo= g_ipv4 nf_log_common xt_LOG ipt_REJECT xt_tcpudp nf_conntrack_ipv4 nf_def= rag_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 n= fs_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_powe= r 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 e10= 0 firewire_core crc_itu_t amdkfd sp5100_tco amd_iommu_v2 i2c_piix4 mxm_wm= i sr_mod cdrom radeon snd_timer snd_seq_device snd ttm drm_kms_helper xhc= i_pci drm r8169 xhci_hcd mii fb_sys_fops sysimgblt sysfillrect syscopyare= a 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 as= ync_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_g= eneric pata_atiixp Oct 6 20:11:19 localhost kernel: [ 32.715461] CPU: 2 PID: 9393 Comm: q= emu-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 ffff88= 05e93afba0 ffffffff81368633 0000000000000000 Oct 6 20:11:19 localhost kernel: [ 32.715466] ffff8805e93afbd8 ffffff= ff8106a628 ffff8805ec604140 00000000000b8000 Oct 6 20:11:19 localhost kernel: [ 32.715468] 0000000000000000 000000= 000000000f 000000000000000f ffff8805e93afbe8 Oct 6 20:11:19 localhost kernel: [ 32.715470] Call Trace: Oct 6 20:11:19 localhost kernel: [ 32.715478] [] tr= y_stack_unwind+0x17e/0x190 Oct 6 20:11:19 localhost kernel: [ 32.715483] [] du= mp_trace+0x8f/0x3b0 Oct 6 20:11:19 localhost kernel: [ 32.715486] [] sh= ow_trace_log_lvl+0x4d/0x60 Oct 6 20:11:19 localhost kernel: [ 32.715488] [] sh= ow_stack_log_lvl+0x101/0x190 Oct 6 20:11:19 localhost kernel: [ 32.715491] [] sh= ow_stack+0x25/0x50 Oct 6 20:11:19 localhost kernel: [ 32.715494] [] du= mp_stack+0x4b/0x78 Oct 6 20:11:19 localhost kernel: [ 32.715498] [] wa= rn_slowpath_common+0x88/0xc0 Oct 6 20:11:19 localhost kernel: [ 32.715501] [] wa= rn_slowpath_null+0x1a/0x20 Oct 6 20:11:19 localhost kernel: [ 32.715512] [] ha= ndle_mmio_page_fault.isra.85+0x2c/0x31 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.715532] [] td= p_page_fault+0x246/0x260 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.715546] [] kv= m_mmu_page_fault+0x24/0x110 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.715551] [] pf= _interception+0xc9/0x150 [kvm_amd] Oct 6 20:11:19 localhost kernel: [ 32.715556] [] ha= ndle_exit+0x180/0x9b0 [kvm_amd] Oct 6 20:11:19 localhost kernel: [ 32.715567] [] vc= pu_enter_guest+0x769/0xde0 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.715580] [] kv= m_arch_vcpu_ioctl_run+0x2da/0x400 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.715590] [] kv= m_vcpu_ioctl+0x30f/0x5c0 [kvm] Oct 6 20:11:19 localhost kernel: [ 32.715595] [] do= _vfs_ioctl+0x2cd/0x4c0 Oct 6 20:11:19 localhost kernel: [ 32.715602] [] Sy= S_ioctl+0x79/0x90 Oct 6 20:11:19 localhost kernel: [ 32.715606] [] en= try_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]=20 Oct 6 20:11:19 localhost kernel: [ 32.716902] Leftover inexact backtra= ce: Oct 6 20:11:19 localhost kernel: [ 32.716902]=20 Oct 6 20:11:19 localhost kernel: [ 32.716904] ---[ end trace 09ac28af2= 000b368 ]--- --------------000703020406070003070803--