[Wed Feb 5 20:09:17 2020] vfio-pci 0000:00:02.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=io+mem [Wed Feb 5 20:09:17 2020] BUG: kernel NULL pointer dereference, address: 0000000000000008 [Wed Feb 5 20:09:17 2020] #PF: supervisor write access in kernel mode [Wed Feb 5 20:09:17 2020] #PF: error_code(0x0002) - not-present page [Wed Feb 5 20:09:17 2020] PGD 0 P4D 0 [Wed Feb 5 20:09:17 2020] Oops: 0002 [#1] SMP NOPTI [Wed Feb 5 20:09:17 2020] CPU: 3 PID: 3306 Comm: tee Not tainted 5.3.0-28-generic #30~18.04.1-Ubuntu [Wed Feb 5 20:09:17 2020] Hardware name: System manufacturer System Product Name/PRIME H310T, BIOS 2602 07/24/2019 [Wed Feb 5 20:09:17 2020] RIP: 0010:mutex_lock+0x1d/0x40 [Wed Feb 5 20:09:17 2020] Code: 5d c3 90 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 89 e5 53 48 89 fb e8 9e e6 ff ff 65 48 8b 14 25 c0 6b 01 00 31 c0 <f0> 48 0f b1 13 75 03 5b 5d c3 48 89 df e8 b1 ff ff ff 5b 5d c3 0f [Wed Feb 5 20:09:17 2020] RSP: 0018:ffff9d4a42817d38 EFLAGS: 00010246 [Wed Feb 5 20:09:17 2020] RAX: 0000000000000000 RBX: 0000000000000008 RCX: 0000000000000000 [Wed Feb 5 20:09:17 2020] RDX: ffff8cd6d8f6da00 RSI: 0000000000000000 RDI: 0000000000000008 [Wed Feb 5 20:09:17 2020] RBP: ffff9d4a42817d40 R08: ffff8cd6dbc036c0 R09: ffff8cd6dbc03718 [Wed Feb 5 20:09:17 2020] R10: 0000000000000000 R11: ffffffff8285d518 R12: 0000000000000000 [Wed Feb 5 20:09:17 2020] R13: ffffffffc05b0000 R14: ffff9d4a42817ee8 R15: fffffffffffffff2 [Wed Feb 5 20:09:17 2020] FS: 00007f32cfe5f540(0000) GS:ffff8cd6ddd80000(0000) knlGS:0000000000000000 [Wed Feb 5 20:09:17 2020] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [Wed Feb 5 20:09:17 2020] CR2: 0000000000000008 CR3: 0000000458984003 CR4: 00000000003626e0 [Wed Feb 5 20:09:17 2020] Call Trace: [Wed Feb 5 20:09:17 2020] snd_sof_ipc_free+0x20/0x40 [snd_sof] [Wed Feb 5 20:09:17 2020] snd_sof_device_remove+0x33/0xa0 [snd_sof] [Wed Feb 5 20:09:17 2020] sof_pci_remove+0x19/0x30 [sof_pci_dev] [Wed Feb 5 20:09:17 2020] pci_device_remove+0x3e/0xc0 [Wed Feb 5 20:09:17 2020] device_release_driver_internal+0xe0/0x1b0 [Wed Feb 5 20:09:17 2020] device_driver_detach+0x14/0x20 [Wed Feb 5 20:09:17 2020] unbind_store+0xd1/0x130 [Wed Feb 5 20:09:17 2020] drv_attr_store+0x27/0x40 [Wed Feb 5 20:09:17 2020] sysfs_kf_write+0x3c/0x50 [Wed Feb 5 20:09:17 2020] kernfs_fop_write+0x125/0x1a0 [Wed Feb 5 20:09:17 2020] __vfs_write+0x1b/0x40 [Wed Feb 5 20:09:17 2020] vfs_write+0xb1/0x1a0 [Wed Feb 5 20:09:17 2020] ksys_write+0xa7/0xe0 [Wed Feb 5 20:09:17 2020] __x64_sys_write+0x1a/0x20 [Wed Feb 5 20:09:17 2020] do_syscall_64+0x5a/0x130 [Wed Feb 5 20:09:17 2020] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [Wed Feb 5 20:09:17 2020] RIP: 0033:0x7f32cf963154 [Wed Feb 5 20:09:17 2020] Code: 89 02 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 8d 05 b1 07 2e 00 8b 00 85 c0 75 13 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 f3 c3 66 90 41 54 55 49 89 d4 53 48 89 f5 [Wed Feb 5 20:09:17 2020] RSP: 002b:00007ffeacffedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [Wed Feb 5 20:09:17 2020] RAX: ffffffffffffffda RBX: 000000000000000d RCX: 00007f32cf963154 [Wed Feb 5 20:09:17 2020] RDX: 000000000000000d RSI: 00007ffeacffeea0 RDI: 0000000000000003 [Wed Feb 5 20:09:17 2020] RBP: 00007ffeacffeea0 R08: 000000000000000d R09: 00007f32cfe5f540 [Wed Feb 5 20:09:17 2020] R10: 00000000000001b6 R11: 0000000000000246 R12: 000055781994c460 [Wed Feb 5 20:09:17 2020] R13: 000000000000000d R14: 00007f32cfc3a760 R15: 000000000000000d [Wed Feb 5 20:09:17 2020] Modules linked in: vhost_net vhost tap xt_CHECKSUM iptable_mangle ipt_REJECT nf_reject_ipv4 xt_tcpudp ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter bpfilter vfio_pci vfio_virqfd vfio_iommu_type1 vfio bridge stp llc intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel mei_hdcp sof_pci_dev snd_sof_intel_hda_common snd_sof_intel_hda nls_iso8859_1 snd_sof_intel_byt aesni_intel snd_sof_intel_ipc snd_sof aes_x86_64 crypto_simd cryptd glue_helper intel_cstate snd_sof_xtensa_dsp snd_soc_skl intel_rapl_perf snd_soc_hdac_hda snd_hda_ext_core snd_soc_skl_ipc snd_soc_sst_ipc snd_soc_sst_dsp snd_soc_acpi_intel_match snd_soc_acpi snd_hda_codec snd_hda_core eeepc_wmi asus_wmi sparse_keymap wmi_bmof snd_soc_core snd_compress ac97_bus snd_pcm_dmaengine btusb snd_usb_audio btrtl snd_usbmidi_lib btbcm snd_hwdep btintel snd_rawmidi bluetooth snd_seq_device snd_pcm uvcvideo [Wed Feb 5 20:09:17 2020] videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 snd_timer videobuf2_common ecdh_generic ecc snd cdc_acm soundcore videodev mei_me mc mei ie31200_edac mac_hid acpi_tad acpi_pad sch_fq_codel coretemp ip_tables x_tables autofs4 r8169 ahci realtek libahci wmi video [Wed Feb 5 20:09:17 2020] CR2: 0000000000000008 [Wed Feb 5 20:09:17 2020] ---[ end trace 6ed0345db568dffc ]--- [Wed Feb 5 20:09:17 2020] RIP: 0010:mutex_lock+0x1d/0x40 [Wed Feb 5 20:09:17 2020] Code: 5d c3 90 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 89 e5 53 48 89 fb e8 9e e6 ff ff 65 48 8b 14 25 c0 6b 01 00 31 c0 <f0> 48 0f b1 13 75 03 5b 5d c3 48 89 df e8 b1 ff ff ff 5b 5d c3 0f [Wed Feb 5 20:09:17 2020] RSP: 0018:ffff9d4a42817d38 EFLAGS: 00010246 [Wed Feb 5 20:09:17 2020] RAX: 0000000000000000 RBX: 0000000000000008 RCX: 0000000000000000 [Wed Feb 5 20:09:17 2020] RDX: ffff8cd6d8f6da00 RSI: 0000000000000000 RDI: 0000000000000008 [Wed Feb 5 20:09:17 2020] RBP: ffff9d4a42817d40 R08: ffff8cd6dbc036c0 R09: ffff8cd6dbc03718 [Wed Feb 5 20:09:17 2020] R10: 0000000000000000 R11: ffffffff8285d518 R12: 0000000000000000 [Wed Feb 5 20:09:17 2020] R13: ffffffffc05b0000 R14: ffff9d4a42817ee8 R15: fffffffffffffff2 [Wed Feb 5 20:09:17 2020] FS: 00007f32cfe5f540(0000) GS:ffff8cd6ddd80000(0000) knlGS:0000000000000000 [Wed Feb 5 20:09:17 2020] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [Wed Feb 5 20:09:17 2020] CR2: 0000000000000008 CR3: 0000000458984003 CR4: 00000000003626e0
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1827822 Title: kernel null pointer dereference Status in linux package in Ubuntu: Confirmed Bug description: System started freezing up a couple days ago. After the latest one, I looked at the syslog file and found what appears to be a kernel bug report. May 5 18:06:03 corbin-goul kernel: [ 4650.769677] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 May 5 18:06:03 corbin-goul kernel: [ 4650.769694] IP: rm_hole+0x19/0x70 [drm] May 5 18:06:03 corbin-goul kernel: [ 4650.769696] PGD 0 P4D 0 May 5 18:06:03 corbin-goul kernel: [ 4650.769698] Oops: 0002 [#1] SMP PTI May 5 18:06:03 corbin-goul kernel: [ 4650.769700] Modules linked in: nls_iso8859_1 snd_hda_codec_realtek snd_hda_codec_hdmi intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel snd_hda_codec_generic snd_hda_intel snd _hda_codec kvm snd_hda_core snd_hwdep snd_pcm irqbypass mei_me intel_cstate mei intel_rapl_perf snd_seq_midi input_leds snd_seq_midi_event serio_raw snd_rawmidi snd_seq snd_seq_device snd_timer lpc_ich snd shpchp soundcore mac_hid s ch_fq_codel ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi parport_pc ppdev lp parport ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq a sync_xor async_tx xor raid6_pq libcrc32c raid0 multipath linear raid1 hid_generic usbhid hid crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc i915 May 5 18:06:03 corbin-goul kernel: [ 4650.769733] aesni_intel i2c_algo_bit aes_x86_64 crypto_simd drm_kms_helper glue_helper cryptd syscopyarea sysfillrect sysimgblt r8169 fb_sys_fops ahci mii drm libahci sata_inic162x video May 5 18:06:03 corbin-goul kernel: [ 4650.769743] CPU: 0 PID: 8713 Comm: kworker/0:0 Not tainted 4.15.0-48-generic #51-Ubuntu May 5 18:06:03 corbin-goul kernel: [ 4650.769744] Hardware name: Gigabyte Technology Co., Ltd. H87M-D3H/H87M-D3H, BIOS F3 04/24/2013 May 5 18:06:03 corbin-goul kernel: [ 4650.769770] Workqueue: events __i915_gem_free_work [i915] May 5 18:06:03 corbin-goul kernel: [ 4650.769778] RIP: 0010:rm_hole+0x19/0x70 [drm] May 5 18:06:03 corbin-goul kernel: [ 4650.769779] RSP: 0018:ffff95fb81f2bd20 EFLAGS: 00010202 May 5 18:06:03 corbin-goul kernel: [ 4650.769780] RAX: 0000000000000000 RBX: ffff89d51f1382c0 RCX: 0000000000000000 May 5 18:06:03 corbin-goul kernel: [ 4650.769781] RDX: 0000000000000000 RSI: ffff89d765cf8b40 RDI: ffff89d51f138318 May 5 18:06:03 corbin-goul kernel: [ 4650.769782] RBP: ffff95fb81f2bd28 R08: ffff89d5e7b71bc0 R09: 0000000000000000 May 5 18:06:03 corbin-goul kernel: [ 4650.769783] R10: ffff95fb81f2bde0 R11: 0000000000000001 R12: ffff89d765cf8b00 May 5 18:06:03 corbin-goul kernel: [ 4650.769784] R13: 0000000000000000 R14: ffff89d51f1382e0 R15: ffff89d75f6c37c8 May 5 18:06:03 corbin-goul kernel: [ 4650.769786] FS: 0000000000000000(0000) GS:ffff89d77e200000(0000) knlGS:0000000000000000 May 5 18:06:03 corbin-goul kernel: [ 4650.769787] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 5 18:06:03 corbin-goul kernel: [ 4650.769788] CR2: 0000000000000008 CR3: 00000002eac0a002 CR4: 00000000001606f0 May 5 18:06:03 corbin-goul kernel: [ 4650.769789] Call Trace: May 5 18:06:03 corbin-goul kernel: [ 4650.769797] drm_mm_remove_node+0x29d/0x360 [drm] May 5 18:06:03 corbin-goul kernel: [ 4650.769801] ? __internal_add_timer+0x1f/0x60 May 5 18:06:03 corbin-goul kernel: [ 4650.769816] i915_vma_remove+0x3a/0x100 [i915] May 5 18:06:03 corbin-goul kernel: [ 4650.769830] i915_vma_unbind+0x1cd/0x370 [i915] May 5 18:06:03 corbin-goul kernel: [ 4650.769843] i915_vma_close+0x7d/0xa0 [i915] May 5 18:06:03 corbin-goul kernel: [ 4650.769856] __i915_gem_free_objects+0xa3/0x2c0 [i915] May 5 18:06:03 corbin-goul kernel: [ 4650.769867] __i915_gem_free_work+0x60/0x90 [i915] May 5 18:06:03 corbin-goul kernel: [ 4650.769870] process_one_work+0x1de/0x410 May 5 18:06:03 corbin-goul kernel: [ 4650.769872] worker_thread+0x32/0x410 May 5 18:06:03 corbin-goul kernel: [ 4650.769874] kthread+0x121/0x140 May 5 18:06:03 corbin-goul kernel: [ 4650.769876] ? process_one_work+0x410/0x410 May 5 18:06:03 corbin-goul kernel: [ 4650.769878] ? kthread_create_worker_on_cpu+0x70/0x70 May 5 18:06:03 corbin-goul kernel: [ 4650.769881] ret_from_fork+0x35/0x40 May 5 18:06:03 corbin-goul kernel: [ 4650.769882] Code: 00 00 00 45 31 d2 eb bb 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 89 e5 53 48 8b 57 30 48 8b 47 38 48 89 fb 48 8d 7f 58 <48> 89 42 08 48 89 10 48 b8 00 01 00 00 00 00 ad de 48 89 47 d8 May 5 18:06:03 corbin-goul kernel: [ 4650.769909] RIP: rm_hole+0x19/0x70 [drm] RSP: ffff95fb81f2bd20 May 5 18:06:03 corbin-goul kernel: [ 4650.769910] CR2: 0000000000000008 May 5 18:06:03 corbin-goul kernel: [ 4650.769912] ---[ end trace 4488bf4278af9827 ]--- ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-48-generic 4.15.0-48.51 ProcVersionSignature: Ubuntu 4.15.0-48.51-generic 4.15.18 Uname: Linux 4.15.0-48-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.6 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: ken 2604 F.... pulseaudio /dev/snd/controlC1: ken 2604 F.... pulseaudio CurrentDesktop: ubuntu:GNOME Date: Sun May 5 18:18:41 2019 HibernationDevice: RESUME=UUID=d9769aee-0f6e-4d98-8376-a6ba3aa6edf8 InstallationDate: Installed on 2018-10-18 (199 days ago) InstallationMedia: Ubuntu-Server 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) IwConfig: lo no wireless extensions. enp2s0 no wireless extensions. MachineType: Gigabyte Technology Co., Ltd. H87M-D3H ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-48-generic root=/dev/mapper/system-Ubuntu--18.04.1 ro RelatedPackageVersions: linux-restricted-modules-4.15.0-48-generic N/A linux-backports-modules-4.15.0-48-generic N/A linux-firmware 1.173.5 RfKill: SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/24/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F3 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: H87M-D3H dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF3:bd04/24/2013:svnGigabyteTechnologyCo.,Ltd.:pnH87M-D3H:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rnH87M-D3H:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvrToBeFilledByO.E.M.: dmi.product.family: To be filled by O.E.M. dmi.product.name: H87M-D3H dmi.product.version: To be filled by O.E.M. dmi.sys.vendor: Gigabyte Technology Co., Ltd. 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