Some interesting stuff in the syslog:
Nov 5 20:56:40 mrg-XPS kernel: [ 66.805478] BUG: unable to handle kernel NULL pointer dereference at (null) Nov 5 20:56:40 mrg-XPS kernel: [ 66.805549] IP: [< (null)>] (null) Nov 5 20:56:40 mrg-XPS kernel: [ 66.805571] PGD 0 Nov 5 20:56:40 mrg-XPS kernel: [ 66.805585] Oops: 0010 [#1] SMP Nov 5 20:56:40 mrg-XPS kernel: [ 66.805605] Modules linked in: btrfs xor raid6_pq ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs libcrc32c cmac rfcomm pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) bnep ax88179_178a usbnet mii nls_iso8859_1 usblp hid_multitouch dell_wmi dell_laptop btusb btrtl btbcm uvcvideo btintel videobuf2_vmalloc bluetooth videobuf2_memops videobuf2_v4l2 videobuf2_core videodev media arc4 intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm iwlmvm dell_led dell_smbios dcdbas mac80211 snd_soc_rt298 snd_soc_rt286 snd_soc_ssm4567 snd_soc_rl6347a snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi irqbypass intel_cstate snd_soc_core snd_hda_intel intel_rapl_perf snd_hda_codec snd_compress snd_hda_core ac97_bus snd_pcm_dmaengine snd_hwdep iwlwifi joydev input_leds serio_raw snd_pcm cfg80211 rtsx_pci_ms elan_i2c memstick snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq intel_pch_thermal snd_seq_device snd_timer lpc_ich shpchp snd soundcore intel_vbtn soc_button_array int3403_thermal int3400_thermal snd_soc_sst_acpi dw_dmac snd_soc_sst_match dw_dmac_core processor_thermal_device i2c_designware_platform intel_soc_dts_iosf tpm_crb int3402_thermal mac_hid 8250_dw int340x_thermal_zone int3406_thermal spi_pxa2xx_platform acpi_thermal_rel intel_hid i2c_designware_core sparse_keymap intel_smartconnect acpi_pad acpi_als kfifo_buf industrialio parport_pc ppdev lp parport ip_tables x_tables autofs4 algif_skcipher af_alg hid_generic hid_logitech_hidpp hid_logitech_dj usbhid uas usb_storage dm_crypt rtsx_pci_sdmmc i915 crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw glue_helper ablk_helper i2c_algo_bit cryptd drm_kms_helper syscopyarea sysfillrect psmouse sysimgblt fb_sys_fops drm ahci libahci rtsx_pci wmi sdhci_acpi video sdhci i2c_hid hid fjes Nov 5 20:56:40 mrg-XPS kernel: [ 66.806588] CPU: 0 PID: 1390 Comm: Xorg Tainted: G U OE 4.8.0-26-generic #28-Ubuntu Nov 5 20:56:40 mrg-XPS kernel: [ 66.806622] Hardware name: Dell Inc. XPS 13 9343/0TM99H, BIOS A09 08/29/2016 Nov 5 20:56:40 mrg-XPS kernel: [ 66.806652] task: ffff97f712bb8e40 task.stack: ffff97f712bd8000 Nov 5 20:56:40 mrg-XPS kernel: [ 66.806677] RIP: 0010:[<0000000000000000>] [< (null)>] (null) Nov 5 20:56:40 mrg-XPS kernel: [ 66.806708] RSP: 0018:ffff97f712bdbad8 EFLAGS: 00010286 Nov 5 20:56:40 mrg-XPS kernel: [ 66.806729] RAX: ffff97f7127aea00 RBX: ffff97f70cb83c90 RCX: 000000000000084d Nov 5 20:56:40 mrg-XPS kernel: [ 66.806756] RDX: 000000000000084d RSI: ffff97f70cb829a8 RDI: ffff97f7127aea00 Nov 5 20:56:40 mrg-XPS kernel: [ 66.806784] RBP: ffff97f712bdbb70 R08: ffff97f7127ae800 R09: 0000000000000000 Nov 5 20:56:40 mrg-XPS kernel: [ 66.806812] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 Nov 5 20:56:40 mrg-XPS kernel: [ 66.806841] R13: ffff97f70cb829a8 R14: ffff97f7127ae800 R15: 0000000000000000 Nov 5 20:56:40 mrg-XPS kernel: [ 66.806868] FS: 00007f3301f82a40(0000) GS:ffff97f71f400000(0000) knlGS:0000000000000000 Nov 5 20:56:40 mrg-XPS kernel: [ 66.806901] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Nov 5 20:56:40 mrg-XPS kernel: [ 66.806924] CR2: 0000000000000000 CR3: 000000021457d000 CR4: 00000000001406f0 Nov 5 20:56:40 mrg-XPS kernel: [ 66.806955] Stack: Nov 5 20:56:40 mrg-XPS kernel: [ 66.806967] ffffffffc0587177 ffffffffa2ac7180 000000018010000b ffff97f71288ed20 Nov 5 20:56:40 mrg-XPS kernel: [ 66.807006] ffff97f70cb829a8 ffff97f712bdbbb0 ffff97f70dae1440 000000010000084d Nov 5 20:56:40 mrg-XPS kernel: [ 66.807041] ffff97f7127ae800 ffff97f711f29100 ffff97f712bdbb38 ffffffffc058a0ed Nov 5 20:56:40 mrg-XPS kernel: [ 66.807079] Call Trace: Nov 5 20:56:40 mrg-XPS kernel: [ 66.807207] [<ffffffffc0587177>] ? i915_gem_object_sync+0x177/0x510 [i915] Nov 5 20:56:40 mrg-XPS kernel: [ 66.807244] [<ffffffffa2ac7180>] ? __wake_up_sync_key+0x50/0x60 Nov 5 20:56:40 mrg-XPS kernel: [ 66.807298] [<ffffffffc058a0ed>] ? i915_gem_object_pin+0x2d/0x30 [i915] Nov 5 20:56:40 mrg-XPS kernel: [ 66.807350] [<ffffffffc0599b9f>] intel_execlists_submission+0x1cf/0x410 [i915] Nov 5 20:56:40 mrg-XPS kernel: [ 66.807399] [<ffffffffc0579e20>] i915_gem_do_execbuffer.isra.24+0xde0/0x11a0 [i915] Nov 5 20:56:40 mrg-XPS kernel: [ 66.807448] [<ffffffffc057ae02>] i915_gem_execbuffer2+0xe2/0x210 [i915] Nov 5 20:56:40 mrg-XPS kernel: [ 66.807515] [<ffffffffc03a3da0>] drm_ioctl+0x200/0x4f0 [drm] Nov 5 20:56:40 mrg-XPS kernel: [ 66.807572] [<ffffffffc057ad20>] ? i915_gem_execbuffer+0x330/0x330 [i915] Nov 5 20:56:40 mrg-XPS kernel: [ 66.807604] [<ffffffffa2af5d0d>] ? enqueue_hrtimer+0x3d/0x80 Nov 5 20:56:40 mrg-XPS kernel: [ 66.807631] [<ffffffffa2af6670>] ? hrtimer_start_range_ns+0x1c0/0x3d0 Nov 5 20:56:40 mrg-XPS kernel: [ 66.807661] [<ffffffffa2c47823>] do_vfs_ioctl+0xa3/0x610 Nov 5 20:56:40 mrg-XPS kernel: [ 66.807685] [<ffffffffa31661a1>] ? __sys_recvmsg+0x51/0x90 Nov 5 20:56:40 mrg-XPS kernel: [ 66.807710] [<ffffffffa2c47e09>] SyS_ioctl+0x79/0x90 Nov 5 20:56:40 mrg-XPS kernel: [ 66.807740] [<ffffffffa329f076>] entry_SYSCALL_64_fastpath+0x1e/0xa8 Nov 5 20:56:40 mrg-XPS kernel: [ 66.807765] Code: Bad RIP value. Nov 5 20:56:40 mrg-XPS kernel: [ 66.807798] RIP [< (null)>] (null) Nov 5 20:56:40 mrg-XPS kernel: [ 66.807823] RSP <ffff97f712bdbad8> Nov 5 20:56:40 mrg-XPS kernel: [ 66.807838] CR2: 0000000000000000 Nov 5 20:56:40 mrg-XPS kernel: [ 66.816978] ---[ end trace dbb8e3eb3f36febb ]--- Nov 5 20:56:40 mrg-XPS org.a11y.atspi.Registry[1774]: XIO: fatal IO error 11 (Resource temporarily unavailable) on X server ":0" Nov 5 20:56:40 mrg-XPS org.a11y.atspi.Registry[1774]: after 69 requests (69 known processed) with 0 events remaining. Nov 5 20:56:40 mrg-XPS org.freedesktop.Notifications[1669]: xfce4-notifyd: Fatal IO error 11 (Resource temporarily unavailable) on X server :0. Nov 5 20:56:40 mrg-XPS org.gtk.vfs.Daemon[1669]: A connection to the bus can't be made Nov 5 20:56:40 mrg-XPS org.gtk.vfs.Daemon[1669]: A connection to the bus can't be made Nov 5 20:56:40 mrg-XPS systemd[1]: Starting Stop ureadahead data collection... Nov 5 20:56:40 mrg-XPS systemd[1]: Started Stop ureadahead data collection. ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ -- 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/1639560 Title: linux-image-4.8.0-26-generic causes complete system freeze Status in linux package in Ubuntu: Confirmed Bug description: Hello, When using kernel linux-image-4.8.0-26-generic 4.8.0-26.28 and after applying latest available updates, the system randomly freezes/hangs and a forced shutdown is required. It can be easily reproduced by trying to press the "logout" button. The system would immediately hang. Reverting to previous kernel, 4.8.0-22.24 fixes the issue. My hardware is a Dell XPS 13 laptop, model 9343. It has the Intel HD graphics card, using i915 module. Description: Ubuntu 16.10 Release: 16.10 Thanks! To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1639560/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
