I first noticed the problem on kernel 4.4.0-81. The computer froze up a few times before I started digging into the logs to try and figure out what was wrong. It was freezing about 3-4 times per day.
I rolled back to kernel 4.4.0-79, which seemed to be more stable but still suffered an Oops at least once per day. Upgraded to 4.4.0-83 when it became available, but still suffering an Oops occasionally. Also around this time I was suffering graphics issues where the display became unresponsive. There was no kernel oops, but it seemed the nouveau driver was crashing. I've switched to the nvidia proprietry driver, which has resulted in a stable display, but even since then a kernel oops reoccured. Most recent log of the oops below. I'm probably not too keen to go mainline kernel as this is not a testing system - but could we achieve a similar test if I went for the HWE kernel (which I think is currently 4.8 ?) Thank you for your reply! Jul 6 11:07:42 Ultimate kernel: [56740.260384] BUG: unable to handle kernel paging request at ffff8802ddeb2db8 Jul 6 11:07:42 Ultimate kernel: [56740.260451] IP: [<ffffffff811bac16>] vma_interval_tree_insert+0x26/0x80 Jul 6 11:07:42 Ultimate kernel: [56740.260515] PGD 1020c067 PUD 0 Jul 6 11:07:42 Ultimate kernel: [56740.260544] Oops: 0000 [#1] SMP Jul 6 11:07:42 Ultimate kernel: [56740.260575] Modules linked in: nls_utf8 isofs scsi_transport_iscsi nvram msr ipt_MASQUERADE nf_nat_masquerade_ipv4 nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype xt_conntrack nf_nat nf_conntrack br_netfilter aufs binfmt_misc veth pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) bridge stp llc iptable_filter ip_tables x_tables snd_usb_audio snd_usbmidi_lib input_leds joydev gspca_zc3xx gspca_main v4l2_common videodev media nvidia_uvm(POE) snd_hda_codec_hdmi nvidia(POE) intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel cryptd serio_raw snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi snd_seq_midi_event snd_rawmidi snd_pcm snd_seq snd_seq_device snd_timer snd shpchp soundcore mei_me mei lpc_ich 8250_fintek mac_hid parport_pc pp dev lp parport autofs4 hid_generic psmouse uas i915 firewire_ohci firewire_core crc_itu_t pata_acpi usb_storage usbhid i2c_algo_bit hid r8169 mii drm_kms_helper syscopyarea sysfillrect video sysimgblt fb_sys_fops fjes drm Jul 6 11:07:42 Ultimate kernel: [56740.260734] CPU: 0 PID: 28425 Comm: systemd-cgroups Tainted: P OE 4.4.0-83-generic #106-Ubuntu Jul 6 11:07:42 Ultimate kernel: [56740.260735] Hardware name: Gigabyte Technology Co., Ltd. To be filled by O.E.M./H61M-S2PV, BIOS FE 06/21/2012 Jul 6 11:07:42 Ultimate kernel: [56740.260737] task: ffff88029dd0ce00 ti: ffff88029fbd0000 task.ti: ffff88029fbd0000 Jul 6 11:07:42 Ultimate kernel: [56740.260738] RIP: 0010:[<ffffffff811bac16>] [<ffffffff811bac16>] vma_interval_tree_insert+0x26/0x80 Jul 6 11:07:42 Ultimate kernel: [56740.260741] RSP: 0018:ffff88029fbd3d40 EFLAGS: 00010286 Jul 6 11:07:42 Ultimate kernel: [56740.260742] RAX: ffff8802ddeb2da0 RBX: ffff88029eb99400 RCX: 0000000000000000 Jul 6 11:07:42 Ultimate kernel: [56740.260743] RDX: ffff8802a2579b90 RSI: ffff8802a2579b90 RDI: ffff8802a231d320 Jul 6 11:07:42 Ultimate kernel: [56740.260744] RBP: ffff88029fbd3d48 R08: 000000000000021c R09: 0000000000000000 Jul 6 11:07:42 Ultimate kernel: [56740.260746] R10: ffff8802a231d320 R11: 000000000021e000 R12: ffff8802a231d320 Jul 6 11:07:42 Ultimate kernel: [56740.260747] R13: ffff88008fa337f0 R14: ffff88008fa33800 R15: ffff8802a2579b98 Jul 6 11:07:42 Ultimate kernel: [56740.260748] FS: 0000000000000000(0000) GS:ffff8802af200000(0000) knlGS:0000000000000000 Jul 6 11:07:42 Ultimate kernel: [56740.260750] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jul 6 11:07:42 Ultimate kernel: [56740.260751] CR2: ffff8802ddeb2db8 CR3: 00000002481df000 CR4: 00000000000406f0 Jul 6 11:07:42 Ultimate kernel: [56740.260751] Stack: Jul 6 11:07:42 Ultimate kernel: [56740.260752] ffffffff811c6636 ffff88029fbd3d90 ffffffff811c71e4 ffff88009086e4b0 Jul 6 11:07:42 Ultimate kernel: [56740.260754] ffff8802a2579b70 ffff88008fa33800 00007f651ac33000 0000000000000075 Jul 6 11:07:42 Ultimate kernel: [56740.260756] ffff88009086e4b0 ffff8802a231d320 ffff88029fbd3e20 ffffffff811c96fb Jul 6 11:07:42 Ultimate kernel: [56740.260759] Call Trace: Jul 6 11:07:42 Ultimate kernel: [56740.260762] [<ffffffff811c6636>] ? __vma_link_file+0x46/0x50 Jul 6 11:07:42 Ultimate kernel: [56740.260765] [<ffffffff811c71e4>] vma_link+0x74/0xc0 Jul 6 11:07:42 Ultimate kernel: [56740.260767] [<ffffffff811c96fb>] mmap_region+0x41b/0x650 Jul 6 11:07:42 Ultimate kernel: [56740.260770] [<ffffffff811c9c63>] do_mmap+0x333/0x420 Jul 6 11:07:42 Ultimate kernel: [56740.260774] [<ffffffff811ae0df>] vm_mmap_pgoff+0xaf/0xe0 Jul 6 11:07:42 Ultimate kernel: [56740.260776] [<ffffffff811c8091>] SyS_mmap_pgoff+0x1c1/0x290 Jul 6 11:07:42 Ultimate kernel: [56740.260780] [<ffffffff8103406b>] SyS_mmap+0x1b/0x30 Jul 6 11:07:42 Ultimate kernel: [56740.260784] [<ffffffff81840b72>] entry_SYSCALL_64_fastpath+0x16/0x71 Jul 6 11:07:42 Ultimate kernel: [56740.260785] Code: 00 00 00 00 00 66 66 66 66 90 48 8b 47 08 48 2b 07 49 89 fa 4c 8b 8f 98 00 00 00 48 89 f2 31 c9 48 c1 e8 0c 4d 8d 44 01 ff eb 1d <4c> 39 40 18 73 04 4c 89 40 18 4c 3b 48 40 48 8d 48 10 48 8d 50 Jul 6 11:07:42 Ultimate kernel: [56740.260811] RIP [<ffffffff811bac16>] vma_interval_tree_insert+0x26/0x80 Jul 6 11:07:42 Ultimate kernel: [56740.260814] RSP <ffff88029fbd3d40> Jul 6 11:07:42 Ultimate kernel: [56740.260815] CR2: ffff8802ddeb2db8 Jul 6 11:07:42 Ultimate kernel: [56740.265147] ---[ end trace 5ef2e93d2adfd88a ]--- -- 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/1701857 Title: Kernel Oops - unable to handle kernel paging request; RIP: 0010:[<ffffffff81210d75>] [<ffffffff81210d75>] fput+0x5/0x90 Status in linux package in Ubuntu: Confirmed Bug description: Kernel Oops causing system to become unresponsive (cannot SSH in or get a console on screen via CTRL-ALT-F1). Requires hard reset to bring system back up. Sorry I'm new to reporting these sort of bugs so unsure if I've supplied sufficient information! From kern.log: Jul 2 05:07:10 Ultimate kernel: [117260.361284] BUG: unable to handle kernel paging request at 0000000040000038 Jul 2 05:07:10 Ultimate kernel: [117260.361310] IP: [<ffffffff81210d75>] fput+0x5/0x90 Jul 2 05:07:10 Ultimate kernel: [117260.361321] PGD 0 Jul 2 05:07:10 Ultimate kernel: [117260.361327] Oops: 0002 [#1] SMP Jul 2 05:07:10 Ultimate kernel: [117260.361334] Modules linked in: scsi_transport_iscsi nvram msr ipt_MASQUERADE nf_nat_masquerade_ipv4 nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype xt_conntrack nf_nat nf_conntrack br_netfilter aufs binfmt_misc veth pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) snd_usb_audio snd_usbmidi_lib bridge stp llc input_leds joydev iptable_filter ip_tables x_tables gspca_zc3xx gspca_main v4l2_common videodev media snd_hda_codec_hdmi intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel cryptd snd_hda_codec_realtek snd_hda_codec_generic serio_raw snd_hda_intel snd_hda_codec snd_hda_core snd_seq_midi snd_hwdep snd_seq_midi_event snd_pcm snd_rawmidi snd_seq snd_seq_device snd_timer snd soundcore mei_me mei shpchp lpc_ich 8250_fintek mac_hid parport_pc ppdev lp parport autofs4 hid_generic psmou se nouveau uas usb_storage mxm_wmi wmi firewire_ohci usbhid hid pata_acpi i2c_algo_bit firewire_core ttm crc_itu_t drm_kms_helper r8169 syscopyarea mii sysfillrect sysimgblt fb_sys_fops drm fjes video Jul 2 05:07:10 Ultimate kernel: [117260.361581] CPU: 1 PID: 29214 Comm: systemd-cgroups Tainted: G B OE 4.4.0-83-generic #106-Ubuntu Jul 2 05:07:10 Ultimate kernel: [117260.361591] Hardware name: Gigabyte Technology Co., Ltd. To be filled by O.E.M./H61M-S2PV, BIOS FE 06/21/2012 Jul 2 05:07:10 Ultimate kernel: [117260.361600] task: ffff880269446800 ti: ffff88028f394000 task.ti: ffff88028f394000 Jul 2 05:07:10 Ultimate kernel: [117260.361608] RIP: 0010:[<ffffffff81210d75>] [<ffffffff81210d75>] fput+0x5/0x90 Jul 2 05:07:10 Ultimate kernel: [117260.361618] RSP: 0018:ffff88028f397d90 EFLAGS: 00010206 Jul 2 05:07:10 Ultimate kernel: [117260.361624] RAX: 0000000000000000 RBX: ffff8801fefad000 RCX: ffff88029ed1a860 Jul 2 05:07:10 Ultimate kernel: [117260.361631] RDX: 0000000000000116 RSI: ffffffff81a28148 RDI: 0000000040000000 Jul 2 05:07:10 Ultimate kernel: [117260.361638] RBP: ffff88028f397da8 R08: 0000000000000002 R09: 0000000000000282 Jul 2 05:07:10 Ultimate kernel: [117260.361646] R10: 0000000000000000 R11: 000000000000000b R12: 0000000040000000 Jul 2 05:07:10 Ultimate kernel: [117260.361653] R13: ffff88028f383400 R14: 0000000000000000 R15: ffff88028f383468 Jul 2 05:07:10 Ultimate kernel: [117260.361661] FS: 0000000000000000(0000) GS:ffff88029ed00000(0000) knlGS:0000000000000000 Jul 2 05:07:10 Ultimate kernel: [117260.361669] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jul 2 05:07:10 Ultimate kernel: [117260.361675] CR2: 0000000040000038 CR3: 000000000fe0a000 CR4: 00000000000406e0 Jul 2 05:07:10 Ultimate kernel: [117260.361682] Stack: Jul 2 05:07:10 Ultimate kernel: [117260.361686] ffffffff811bc514 ffff88028fb3e3e8 ffff88028fb3e578 ffff88028f397dc8 Jul 2 05:07:10 Ultimate kernel: [117260.361698] ffffffff811c68e0 0000000000000000 ffff88028f383400 ffff88028f397e78 Jul 2 05:07:10 Ultimate kernel: [117260.361711] ffffffff811ca1c9 ffff88028fb3e3e8 ffff88028f383400 ffffffffffffffff Jul 2 05:07:10 Ultimate kernel: [117260.361723] Call Trace: Jul 2 05:07:10 Ultimate kernel: [117260.361732] [<ffffffff811bc514>] ? vma_do_fput+0x34/0x40 Jul 2 05:07:10 Ultimate kernel: [117260.361740] [<ffffffff811c68e0>] remove_vma+0x50/0x80 Jul 2 05:07:10 Ultimate kernel: [117260.361748] [<ffffffff811ca1c9>] exit_mmap+0xf9/0x170 Jul 2 05:07:10 Ultimate kernel: [117260.361756] [<ffffffff8107e147>] mmput+0x57/0x130 Jul 2 05:07:10 Ultimate kernel: [117260.361764] [<ffffffff81083f7a>] do_exit+0x27a/0xb00 Jul 2 05:07:10 Ultimate kernel: [117260.361774] [<ffffffff81084883>] do_group_exit+0x43/0xb0 Jul 2 05:07:10 Ultimate kernel: [117260.361782] [<ffffffff81084904>] SyS_exit_group+0x14/0x20 Jul 2 05:07:10 Ultimate kernel: [117260.361791] [<ffffffff81840b72>] entry_SYSCALL_64_fastpath+0x16/0x71 Jul 2 05:07:10 Ultimate kernel: [117260.361797] Code: 8b 3d 70 cd d2 00 48 89 de e8 48 d7 fd ff 5b 5d c3 e8 e0 19 e9 ff eb e7 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 66 66 66 66 90 <f0> 48 ff 4f 38 74 01 c3 55 65 8b 05 0b c6 df 7e 48 89 e5 53 48 Jul 2 05:07:10 Ultimate kernel: [117260.361905] RIP [<ffffffff81210d75>] fput+0x5/0x90 Jul 2 05:07:10 Ultimate kernel: [117260.361913] RSP <ffff88028f397d90> Jul 2 05:07:10 Ultimate kernel: [117260.361918] CR2: 0000000040000038 Jul 2 05:07:10 Ultimate kernel: [117260.366561] ---[ end trace c3bf8394bfe676f1 ]--- Jul 2 05:07:10 Ultimate kernel: [117260.366570] Fixing recursive fault but reboot is needed! lsb_release -rd: Description: Ubuntu 16.04.2 LTS Release: 16.04 linux-generic 4.4.0-83.89 --- ApportVersion: 2.20.1-0ubuntu2.6 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC2: guybarton 3270 F.... pulseaudio /dev/snd/controlC1: guybarton 3270 F.... pulseaudio /dev/snd/controlC0: guybarton 3270 F.... pulseaudio CurrentDesktop: Unity DistroRelease: Ubuntu 16.04 HibernationDevice: RESUME=UUID=ef644ecb-2770-4d5a-97de-fab0a62f7f77 InstallationDate: Installed on 2016-10-02 (273 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Beta amd64 (20160323) MachineType: Gigabyte Technology Co., Ltd. To be filled by O.E.M. Package: linux (not installed) ProcFB: 0 nouveaufb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-83-generic root=UUID=c1765f93-69c1-4371-9aed-52f9168c068d ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 4.4.0-83.106-generic 4.4.70 RelatedPackageVersions: linux-restricted-modules-4.4.0-83-generic N/A linux-backports-modules-4.4.0-83-generic N/A linux-firmware 1.157.11 RfKill: Tags: xenial Uname: Linux 4.4.0-83-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip docker libvirtd lpadmin lxd plugdev sambashare sudo wireshark _MarkForUpload: True dmi.bios.date: 06/21/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: FE dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: H61M-S2PV 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.:bvrFE:bd06/21/2012:svnGigabyteTechnologyCo.,Ltd.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rnH61M-S2PV:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To be filled by O.E.M. dmi.product.version: To be filled by O.E.M. dmi.sys.vendor: Gigabyte Technology Co., Ltd. --- ApportVersion: 2.20.1-0ubuntu2.6 Architecture: amd64 DistroRelease: Ubuntu 16.04 HibernationDevice: RESUME=UUID=ef644ecb-2770-4d5a-97de-fab0a62f7f77 InstallationDate: Installed on 2016-10-02 (274 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Beta amd64 (20160323) MachineType: Gigabyte Technology Co., Ltd. To be filled by O.E.M. Package: linux (not installed) ProcFB: 0 nouveaufb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-83-generic root=UUID=c1765f93-69c1-4371-9aed-52f9168c068d ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 4.4.0-83.106-generic 4.4.70 RelatedPackageVersions: linux-restricted-modules-4.4.0-83-generic N/A linux-backports-modules-4.4.0-83-generic N/A linux-firmware 1.157.11 RfKill: Tags: xenial Uname: Linux 4.4.0-83-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip docker libvirtd lpadmin lxd plugdev sambashare sudo wireshark _MarkForUpload: True dmi.bios.date: 06/21/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: FE dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: H61M-S2PV 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.:bvrFE:bd06/21/2012:svnGigabyteTechnologyCo.,Ltd.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rnH61M-S2PV:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To be filled by O.E.M. dmi.product.version: To be filled by O.E.M. dmi.sys.vendor: Gigabyte Technology Co., Ltd. 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