Still persists for me Linux laptop 4.8.0-34-generic #36-Ubuntu SMP Wed Dec 21 17:24:18 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux It goes like this: fresh boot .... ok sudo pm-hibernate .... ok boot from hibernate ... everything seems ok second sudo pm-hibernate does this: Jan 19 16:38:03 laptop kernel: [ 1337.045404] nouveau 0000:01:00.0: DRM: evicting buffers... Jan 19 16:38:03 laptop kernel: [ 1337.045407] nouveau 0000:01:00.0: DRM: waiting for kernel channels to go idle... Jan 19 16:38:03 laptop kernel: [ 1352.043878] nouveau 0000:01:00.0: DRM: failed to idle channel 0 [DRM] Jan 19 16:38:03 laptop kernel: [ 1352.043917] pci_pm_freeze(): nouveau_pmops_freeze+0x0/0x20 [nouveau] returns -16 Jan 19 16:38:03 laptop kernel: [ 1352.043920] dpm_run_callback(): pci_pm_freeze+0x0/0xf0 returns -16 Jan 19 16:38:03 laptop kernel: [ 1352.043922] PM: Device 0000:01:00.0 failed to freeze async: error -16 Jan 19 16:38:03 laptop kernel: [ 1352.050293] queueing ieee80211 work while going to suspend Jan 19 16:38:03 laptop kernel: [ 1352.110583] usb usb3: root hub lost power or was reset Jan 19 16:38:03 laptop kernel: [ 1352.110584] usb usb4: root hub lost power or was reset Jan 19 16:38:03 laptop kernel: [ 1352.111949] usb usb1: root hub lost power or was reset Jan 19 16:38:03 laptop kernel: [ 1352.112086] usb usb2: root hub lost power or was reset Jan 19 16:38:03 laptop kernel: [ 1352.114499] sd 0:0:0:0: [sda] Starting disk Jan 19 16:38:03 laptop kernel: [ 1352.115857] ehci-pci 0000:00:1a.0: cache line size of 64 is not supported Jan 19 16:38:03 laptop kernel: [ 1352.115974] ehci-pci 0000:00:1d.0: cache line size of 64 is not supported Jan 19 16:38:03 laptop kernel: [ 1352.123973] rtc_cmos 00:01: System wakeup disabled by ACPI Jan 19 16:38:03 laptop kernel: [ 1352.124686] ------------[ cut here ]------------ Jan 19 16:38:03 laptop kernel: [ 1352.124710] WARNING: CPU: 0 PID: 7729 at /build/linux-RZGRu0/linux-4.8.0/net/mac80211/key.c:683 ieee80211_enable_keys+0x182/0x190 [mac80211] Jan 19 16:38:03 laptop kernel: [ 1352.124734] Modules linked in: pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) ccm xfrm_user xfrm_algo br_netfilter bridge stp llc aufs ip6table_filter ip6_tables xt_conntrack iptable_filter ipt_MASQUERADE nf_nat_masquerade_ipv4 xt_addrtype iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack binfmt_misc acer_wmi sparse_keymap arc4 ath9k ath9k_common ath9k_hw ath mac80211 uvcvideo videobuf2_vmalloc videobuf2_memops intel_rapl cfg80211 videobuf2_v4l2 videobuf2_core videodev x86_pkg_temp_thermal media snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel rtsx_pci_ms memstick snd_hda_codec snd_hda_core shpchp coretemp snd_hwdep snd_pcm snd_seq_midi kvm_intel snd_seq_midi_event snd_rawmidi kvm snd_seq snd_seq_device snd_timer irqbypass snd input_leds soundcore joydev intel_cstate intel_rapl_perf serio_raw mei_me mei lpc_ich mac_hid parport_pc ppdev lp parport ip_tables x_tables autofs4 algif_skcipher af_alg dm_crypt rtsx_pci_sdmmc hid_generic nouveau i915 crct10dif_pclmul crc32_pclmul ghash_clmulni_intel mxm_wmi ttm i2c_algo_bit aesni_intel drm_kms_helper syscopyarea aes_x86_64 sysfillrect lrw sysimgblt glue_helper fb_sys_fops usbhid ablk_helper cryptd atl1c psmouse ahci libahci rtsx_pci hid drm wmi video fjes Jan 19 16:38:03 laptop kernel: [ 1352.124753] CPU: 0 PID: 7729 Comm: kworker/u16:6 Tainted: G OE 4.8.0-34-generic #36-Ubuntu Jan 19 16:38:03 laptop kernel: [ 1352.124754] Hardware name: Acer Aspire V3-731/VA70_HC, BIOS V1.15 03/06/2013 Jan 19 16:38:03 laptop kernel: [ 1352.124757] Workqueue: events_unbound async_run_entry_fn Jan 19 16:38:03 laptop kernel: [ 1352.124759] 0000000000000286 00000000095e304e ffff9ecc60eebc40 ffffffff93030a22 Jan 19 16:38:03 laptop kernel: [ 1352.124761] 0000000000000000 0000000000000000 ffff9ecc60eebc80 ffffffff92c8319b Jan 19 16:38:03 laptop kernel: [ 1352.124762] 000002abc0b0c86b ffff9ecdd5670700 ffff9ecdce13e880 00000000000674ff Jan 19 16:38:03 laptop kernel: [ 1352.124762] Call Trace: Jan 19 16:38:03 laptop kernel: [ 1352.124765] [] dump_stack+0x63/0x81 Jan 19 16:38:03 laptop kernel: [ 1352.124768] [] __warn+0xcb/0xf0 Jan 19 16:38:03 laptop kernel: [ 1352.124769] [] warn_slowpath_null+0x1d/0x20 Jan 19 16:38:03 laptop kernel: [ 1352.124781] [] ieee80211_enable_keys+0x182/0x190 [mac80211] Jan 19 16:38:03 laptop kernel: [ 1352.124793] [] ieee80211_reconfig+0xaab/0xf70 [mac80211] Jan 19 16:38:03 laptop kernel: [ 1352.124803] [] ieee80211_resume+0x5f/0x70 [mac80211] Jan 19 16:38:03 laptop kernel: [ 1352.124819] [] wiphy_resume+0x76/0x100 [cfg80211] Jan 19 16:38:03 laptop kernel: [ 1352.124827] [] ? index_show+0x30/0x30 [cfg80211] Jan 19 16:38:03 laptop kernel: [ 1352.124828] [] dpm_run_callback+0x4d/0x120 Jan 19 16:38:03 laptop kernel: [ 1352.124829] [] device_resume+0xa6/0x200 Jan 19 16:38:03 laptop kernel: [ 1352.124830] [] async_resume+0x1d/0x50 Jan 19 16:38:03 laptop kernel: [ 1352.124831] [] async_run_entry_fn+0x37/0x150 Jan 19 16:38:03 laptop kernel: [ 1352.124832] [] process_one_work+0x1fc/0x4b0 Jan 19 16:38:03 laptop kernel: [ 1352.124833] [] worker_thread+0x4b/0x500 Jan 19 16:38:03 laptop kernel: [ 1352.124834] [] ? process_one_work+0x4b0/0x4b0 Jan 19 16:38:03 laptop kernel: [ 1352.124835] [] ? process_one_work+0x4b0/0x4b0 Jan 19 16:38:03 laptop kernel: [ 1352.124836] [] kthread+0xd8/0xf0 Jan 19 16:38:03 laptop kernel: [ 1352.124838] [] ? finish_task_switch+0x7c/0x1f0 Jan 19 16:38:03 laptop kernel: [ 1352.124840] [] ret_from_fork+0x1f/0x40 Jan 19 16:38:03 laptop kernel: [ 1352.124841] [] ? kthread_create_on_node+0x1e0/0x1e0 Jan 19 16:38:03 laptop kernel: [ 1352.124842] ---[ end trace 25ce9d92c3e961a7 ]--- Jan 19 16:38:03 laptop kernel: [ 1352.439595] ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 300) Jan 19 16:38:03 laptop kernel: [ 1352.439628] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) Jan 19 16:38:03 laptop kernel: [ 1352.442826] ata3.00: configured for UDMA/133 Jan 19 16:38:03 laptop kernel: [ 1352.443467] ata1.00: configured for UDMA/133 Jan 19 16:38:03 laptop kernel: [ 1352.452014] usb 1-1: reset high-speed USB device number 2 using ehci-pci Jan 19 16:38:03 laptop kernel: [ 1352.460060] usb 3-4: reset full-speed USB device number 2 using xhci_hcd Jan 19 16:38:03 laptop kernel: [ 1352.571981] ------------[ cut here ]------------ Jan 19 16:38:03 laptop kernel: [ 1352.572038] WARNING: CPU: 0 PID: 7802 at /build/linux-RZGRu0/linux-4.8.0/net/mac80211/key.c:120 decrease_tailroom_need_count+0x90/0xa0 [mac80211] Jan 19 16:38:03 laptop kernel: [ 1352.572124] Modules linked in: pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) ccm xfrm_user xfrm_algo br_netfilter bridge stp llc aufs ip6table_filter ip6_tables xt_conntrack iptable_filter ipt_MASQUERADE nf_nat_masquerade_ipv4 xt_addrtype iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack binfmt_misc acer_wmi sparse_keymap arc4 ath9k ath9k_common ath9k_hw ath mac80211 uvcvideo videobuf2_vmalloc videobuf2_memops intel_rapl cfg80211 videobuf2_v4l2 videobuf2_core videodev x86_pkg_temp_thermal media snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel rtsx_pci_ms memstick snd_hda_codec snd_hda_core shpchp coretemp snd_hwdep snd_pcm snd_seq_midi kvm_intel snd_seq_midi_event snd_rawmidi kvm snd_seq snd_seq_device snd_timer irqbypass snd input_leds soundcore joydev intel_cstate intel_rapl_perf serio_raw mei_me mei lpc_ich mac_hid parport_pc ppdev lp parport ip_tables x_tables autofs4 algif_skcipher af_alg dm_crypt rtsx_pci_sdmmc hid_generic nouveau i915 crct10dif_pclmul crc32_pclmul ghash_clmulni_intel mxm_wmi ttm i2c_algo_bit aesni_intel drm_kms_helper syscopyarea aes_x86_64 sysfillrect lrw sysimgblt glue_helper fb_sys_fops usbhid ablk_helper cryptd atl1c psmouse ahci libahci rtsx_pci hid drm wmi video fjes Jan 19 16:38:03 laptop kernel: [ 1352.572203] CPU: 0 PID: 7802 Comm: kworker/0:3 Tainted: G W OE 4.8.0-34-generic #36-Ubuntu Jan 19 16:38:03 laptop kernel: [ 1352.572204] Hardware name: Acer Aspire V3-731/VA70_HC, BIOS V1.15 03/06/2013 Jan 19 16:38:03 laptop kernel: [ 1352.572251] Workqueue: events ieee80211_delayed_tailroom_dec [mac80211] Jan 19 16:38:03 laptop kernel: [ 1352.572256] 0000000000000286 00000000bd5e31e7 ffff9ecd74033d88 ffffffff93030a22 Jan 19 16:38:03 laptop kernel: [ 1352.572259] 0000000000000000 0000000000000000 ffff9ecd74033dc8 ffffffff92c8319b Jan 19 16:38:03 laptop kernel: [ 1352.572262] 0000007800000000 ffff9ecdce13e880 0000000000000002 ffff9ecddf21d400 Jan 19 16:38:03 laptop kernel: [ 1352.572263] Call Trace: Jan 19 16:38:03 laptop kernel: [ 1352.572271] [] dump_stack+0x63/0x81 Jan 19 16:38:03 laptop kernel: [ 1352.572277] [] __warn+0xcb/0xf0 Jan 19 16:38:03 laptop kernel: [ 1352.572281] [] warn_slowpath_null+0x1d/0x20 Jan 19 16:38:03 laptop kernel: [ 1352.572351] [] decrease_tailroom_need_count+0x90/0xa0 [mac80211] Jan 19 16:38:03 laptop kernel: [ 1352.572380] [] ieee80211_delayed_tailroom_dec+0x2f/0x50 [mac80211] Jan 19 16:38:03 laptop kernel: [ 1352.572383] [] process_one_work+0x1fc/0x4b0 Jan 19 16:38:03 laptop kernel: [ 1352.572386] [] worker_thread+0x4b/0x500 Jan 19 16:38:03 laptop kernel: [ 1352.572388] [] ? process_one_work+0x4b0/0x4b0 Jan 19 16:38:03 laptop kernel: [ 1352.572389] [] ? process_one_work+0x4b0/0x4b0 Jan 19 16:38:03 laptop kernel: [ 1352.572393] [] kthread+0xd8/0xf0 Jan 19 16:38:03 laptop kernel: [ 1352.572398] [] ret_from_fork+0x1f/0x40 Jan 19 16:38:03 laptop kernel: [ 1352.572401] [] ? kthread_create_on_node+0x1e0/0x1e0 Jan 19 16:38:03 laptop kernel: [ 1352.572403] ---[ end trace 25ce9d92c3e961a8 ]--- .. and nothing happens. System is not hibernated but it works normaly, except that it can't be hibernated or shutdown. Subsequent attempts to do shutdown end up hanging and leave system unresponsive in middle of shutdown process with error messages of soft lockup, CPU stall, etc., something like this: Jan 19 15:35:06 laptop kernel: [ 843.517083] nouveau 0000:01:00.0: Xorg[2904]: failed to idle channel 3 [Xorg[2904]] Jan 19 15:35:08 laptop kernel: [ 846.384362] INFO: task kworker/1:1:12901 blocked for more than 120 seconds. Jan 19 15:35:08 laptop kernel: [ 846.385173] Tainted: G W OE 4.8.0-34-generic #36-Ubuntu Jan 19 15:35:08 laptop kernel: [ 846.385987] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Jan 19 15:35:08 laptop kernel: [ 846.386804] kworker/1:1 D ffffa01e0dd73bb8 0 12901 2 0x00000000 Jan 19 15:35:08 laptop kernel: [ 846.386842] Workqueue: events gf100_fifo_recover_work [nouveau] Jan 19 15:35:08 laptop kernel: [ 846.386844] ffffa01e0dd73bb8 00ffa01de2a8ccb8 ffffa01e17a83a00 ffffa01e1040c880 Jan 19 15:35:08 laptop kernel: [ 846.386846] ffffffffab06d34d ffffa01e0dd74000 7fffffffffffffff ffffa01e0dd73d10 Jan 19 15:35:08 laptop kernel: [ 846.386848] ffffa01e1040c880 ffffa01e0ed09000 ffffa01e0dd73bd0 ffffffffab897b15 Jan 19 15:35:08 laptop kernel: [ 846.386849] Call Trace: Jan 19 15:35:08 laptop kernel: [ 846.386854] [] ? _lookup_address_cpa.isra.7+0x3d/0x40 Jan 19 15:35:08 laptop kernel: [ 846.386856] [] schedule+0x35/0x80 Jan 19 15:35:08 laptop kernel: [ 846.386858] [] schedule_timeout+0x22a/0x3f0 Jan 19 15:35:08 laptop kernel: [ 846.386860] [] ? flat_send_IPI_allbutself+0x78/0xb0 Jan 19 15:35:08 laptop kernel: [ 846.386862] [] ? native_send_call_func_ipi.part.2+0x1b/0x20 Jan 19 15:35:08 laptop kernel: [ 846.386864] [] ? native_send_call_func_ipi+0xe5/0xf0 Jan 19 15:35:08 laptop kernel: [ 846.386865] [] wait_for_completion+0xb3/0x140 Jan 19 15:35:08 laptop kernel: [ 846.386868] [] ? wake_up_q+0x80/0x80 Jan 19 15:35:08 laptop kernel: [ 846.386869] [] flush_work+0x116/0x1c0 Jan 19 15:35:08 laptop kernel: [ 846.386871] [] ? destroy_worker+0x90/0x90 Jan 19 15:35:08 laptop kernel: [ 846.386894] [] gf100_fifo_fini+0x15/0x20 [nouveau] Jan 19 15:35:08 laptop kernel: [ 846.386915] [] nvkm_fifo_fini+0x1c/0x30 [nouveau] Jan 19 15:35:08 laptop kernel: [ 846.386928] [] nvkm_engine_fini+0x20/0x30 [nouveau] Jan 19 15:35:08 laptop kernel: [ 846.386942] [] nvkm_subdev_fini+0x5c/0x150 [nouveau] Jan 19 15:35:08 laptop kernel: [ 846.386962] [] gf100_fifo_recover_work+0xe8/0x200 [nouveau] Jan 19 15:35:08 laptop kernel: [ 846.386963] [] process_one_work+0x1fc/0x4b0 Jan 19 15:35:08 laptop kernel: [ 846.386964] [] worker_thread+0x4b/0x500 Jan 19 15:35:08 laptop kernel: [ 846.386965] [] ? process_one_work+0x4b0/0x4b0 Jan 19 15:35:08 laptop kernel: [ 846.386966] [] ? process_one_work+0x4b0/0x4b0 Jan 19 15:35:08 laptop kernel: [ 846.386968] [] kthread+0xd8/0xf0 Jan 19 15:35:08 laptop kernel: [ 846.386969] [] ret_from_fork+0x1f/0x40 Jan 19 15:35:08 laptop kernel: [ 846.386971] [] ? kthread_create_on_node+0x1e0/0x1e0 Jan 19 15:35:15 laptop kernel: [ 852.502747] NMI watchdog: BUG: soft lockup - CPU#2 stuck for 22s! [Xorg:2904] Jan 19 15:35:15 laptop kernel: [ 852.503549] Modules linked in: pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) ccm xfrm_user xfrm_algo br_netfilter bridge stp llc aufs ip6table_filter ip6_tables xt_conntrack iptable_filter ipt_MASQUERADE nf_nat_masquerade_ipv4 xt_addrtype iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack binfmt_misc acer_wmi sparse_keymap arc4 ath9k ath9k_common uvcvideo ath9k_hw videobuf2_vmalloc intel_rapl ath mac80211 videobuf2_memops videobuf2_v4l2 videobuf2_core videodev media x86_pkg_temp_thermal coretemp cfg80211 snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic kvm_intel snd_hda_intel snd_hda_codec kvm snd_hda_core snd_hwdep rtsx_pci_ms snd_pcm snd_seq_midi snd_seq_midi_event memstick snd_rawmidi snd_seq snd_seq_device irqbypass snd_timer input_leds snd intel_cstate intel_rapl_perf joydev soundcore shpchp serio_raw mac_hid mei_me mei lpc_ich parport_pc ppdev lp parport ip_tables x_tables autofs4 algif_skcipher af_alg dm_crypt hid_generic usbhid hid rtsx_pci_sdmmc crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel nouveau aes_x86_64 lrw glue_helper ablk_helper cryptd i915 psmouse ahci mxm_wmi libahci ttm atl1c i2c_algo_bit drm_kms_helper rtsx_pci syscopyarea sysfillrect sysimgblt fb_sys_fops drm video fjes wmi Jan 19 15:35:15 laptop kernel: [ 852.503598] CPU: 2 PID: 2904 Comm: Xorg Tainted: G W OE 4.8.0-34-generic #36-Ubuntu Jan 19 15:35:15 laptop kernel: [ 852.503599] Hardware name: Acer Aspire V3-731/VA70_HC, BIOS V1.15 03/06/2013 Jan 19 15:35:15 laptop kernel: [ 852.503600] task: ffffa01e104a8000 task.stack: ffffa01e106dc000 Jan 19 15:35:15 laptop kernel: [ 852.503601] RIP: 0010:[] [] ioread32+0x30/0x40 Jan 19 15:35:15 laptop kernel: [ 852.503606] RSP: 0018:ffffa01e106dfaf8 EFLAGS: 00000292 Jan 19 15:35:15 laptop kernel: [ 852.503606] RAX: 00000000ffffffff RBX: ffffa01e0ed09000 RCX: ffffa01e0e59af08 Jan 19 15:35:15 laptop kernel: [ 852.503607] RDX: 0000000000000003 RSI: ffffba9242002634 RDI: ffffba9242009400 Jan 19 15:35:15 laptop kernel: [ 852.503607] RBP: ffffa01e106dfb18 R08: 0000000000000000 R09: 0000000000000000 Jan 19 15:35:15 laptop kernel: [ 852.503608] R10: ffffa01e0f6d8750 R11: 000000000000052e R12: 00000000ffffffff Jan 19 15:35:15 laptop kernel: [ 852.503608] R13: ffffa01e0ed09000 R14: ffffa01e0f27f180 R15: ffffffffffffffff Jan 19 15:35:15 laptop kernel: [ 852.503609] FS: 00007efe64284a40(0000) GS:ffffa01e1f280000(0000) knlGS:0000000000000000 Jan 19 15:35:15 laptop kernel: [ 852.503610] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jan 19 15:35:15 laptop kernel: [ 852.503610] CR2: 00005578cc2abfd8 CR3: 00000001cee69000 CR4: 00000000001406e0 Jan 19 15:35:15 laptop kernel: [ 852.503611] Stack: Jan 19 15:35:15 laptop kernel: [ 852.503612] ffffffffc075398b 0000000000000000 ffffa01e10e32000 ffffa01e0ed09000 Jan 19 15:35:15 laptop kernel: [ 852.503614] ffffa01e106dfb28 ffffffffc07534ff ffffa01e106dfb78 ffffffffc0773cfd Jan 19 15:35:15 laptop kernel: [ 852.503615] ffffa01e0f721400 ffffa01e10714d00 0000023000000000 ffffa01e10e32180 Jan 19 15:35:15 laptop kernel: [ 852.503617] Call Trace: Jan 19 15:35:15 laptop kernel: [ 852.503649] [] ? nv04_timer_read+0x3b/0x70 [nouveau] Jan 19 15:35:15 laptop kernel: [ 852.503669] [] nvkm_timer_read+0xf/0x20 [nouveau] Jan 19 15:35:15 laptop kernel: [ 852.503690] [] gf100_fifo_gpfifo_engine_fini+0x7d/0x180 [nouveau] Jan 19 15:35:15 laptop kernel: [ 852.503710] [] nvkm_fifo_chan_child_fini+0x65/0x110 [nouveau] Jan 19 15:35:15 laptop kernel: [ 852.503723] [] nvkm_oproxy_fini+0x2e/0x90 [nouveau] Jan 19 15:35:15 laptop kernel: [ 852.503735] [] nvkm_object_fini+0xeb/0x230 [nouveau] Jan 19 15:35:15 laptop kernel: [ 852.503748] [] nvkm_ioctl_del+0x2c/0x90 [nouveau] Jan 19 15:35:15 laptop kernel: [ 852.503760] [] nvkm_ioctl+0x107/0x260 [nouveau] Jan 19 15:35:15 laptop kernel: [ 852.503762] [] ? __dev_printk+0x3c/0x80 Jan 19 15:35:15 laptop kernel: [ 852.503782] [] nvkm_client_ioctl+0x12/0x20 [nouveau] Jan 19 15:35:15 laptop kernel: [ 852.503794] [] nvif_object_ioctl+0x41/0x50 [nouveau] Jan 19 15:35:15 laptop kernel: [ 852.503805] [] nvif_object_fini+0x5a/0x80 [nouveau] Jan 19 15:35:15 laptop kernel: [ 852.503825] [] nouveau_abi16_ntfy_fini+0x1a/0x60 [nouveau] Jan 19 15:35:15 laptop kernel: [ 852.503844] [] nouveau_abi16_ioctl_gpuobj_free+0xca/0xf0 [nouveau] Jan 19 15:35:15 laptop kernel: [ 852.503856] [] drm_ioctl+0x200/0x4f0 [drm] Jan 19 15:35:15 laptop kernel: [ 852.503875] [] ? nouveau_abi16_ioctl_notifierobj_alloc+0x290/0x290 [nouveau] Jan 19 15:35:15 laptop kernel: [ 852.503878] [] ? tlb_finish_mmu+0x1c/0x50 Jan 19 15:35:15 laptop kernel: [ 852.503897] [] nouveau_drm_ioctl+0x74/0xc0 [nouveau] Jan 19 15:35:15 laptop kernel: [ 852.503899] [] do_vfs_ioctl+0xa3/0x610 Jan 19 15:35:15 laptop kernel: [ 852.503901] [] ? __do_page_fault+0x266/0x4e0 Jan 19 15:35:15 laptop kernel: [ 852.503902] [] SyS_ioctl+0x79/0x90 Jan 19 15:35:15 laptop kernel: [ 852.503905] [] entry_SYSCALL_64_fastpath+0x1e/0xa8 Jan 19 15:35:15 laptop kernel: [ 852.503906] Code: 03 00 77 25 48 81 ff 00 00 01 00 76 05 0f b7 d7 ed c3 55 48 c7 c6 cf eb cc ab 48 89 e5 e8 19 ff ff ff b8 ff ff ff ff 5d c3 8b 07 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 48 81 fe ff ff Jan 19 15:35:43 laptop kernel: [ 880.499113] NMI watchdog: BUG: soft lockup - CPU#2 stuck for 23s! [Xorg:2904] Jan 19 15:35:43 laptop kernel: [ 880.499907] Modules linked in: pci_stub vboxpci(OE) vboxnetflt(OE) vboxdrv(OE) ccm xfrm_user xfrm_algo br_netfilter bridge stp llc aufs ip6table_filter ip6_tables xt_conntrack iptable_filter ipt_MASQUERADE nf_nat_masquerade_ipv4 xt_addrtype iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack binfmt_misc acer_wmi sparse_keymap arc4 ath9k ath9k_common uvcvideo ath9k_hw videobuf2_vmalloc intel_rapl ath mac80211 videobuf2_memops videobuf2_v4l2 videobuf2_core videodev media x86_pkg_temp_thermal coretemp cfg80211 snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic kvm_intel snd_hda_intel snd_hda_codec kvm snd_hda_core snd_hwdep rtsx_pci_ms snd_pcm snd_seq_midi snd_seq_midi_event memstick snd_rawmidi snd_seq snd_seq_device irqbypass snd_timer input_leds snd intel_cstate intel_rapl_perf joydev soundcore shpchp serio_raw mac_hid mei_me mei lpc_ich parport_pc ppdev lp parport ip_tables x_tables autofs4 algif_skcipher af_alg dm_crypt hid_generic usbhid hid rtsx_pci_sdmmc crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel nouveau aes_x86_64 lrw glue_helper ablk_helper cryptd i915 psmouse ahci mxm_wmi libahci ttm atl1c i2c_algo_bit drm_kms_helper rtsx_pci syscopyarea sysfillrect sysimgblt fb_sys_fops drm video fjes wmi [last unloaded: vboxnetadp] Jan 19 15:35:43 laptop kernel: [ 880.499956] CPU: 2 PID: 2904 Comm: Xorg Tainted: G W OEL 4.8.0-34-generic #36-Ubuntu Jan 19 15:35:43 laptop kernel: [ 880.499957] Hardware name: Acer Aspire V3-731/VA70_HC, BIOS V1.15 03/06/2013 Jan 19 15:35:43 laptop kernel: [ 880.499958] task: ffffa01e104a8000 task.stack: ffffa01e106dc000 Jan 19 15:35:43 laptop kernel: [ 880.499959] RIP: 0010:[] [] ioread32+0x30/0x40 Jan 19 15:35:43 laptop kernel: [ 880.499963] RSP: 0018:ffffa01e106dfaf8 EFLAGS: 00000292 Jan 19 15:35:43 laptop kernel: [ 880.499964] RAX: 00000000ffffffff RBX: ffffa01e0ed09000 RCX: ffffa01e0e59af08 Jan 19 15:35:43 laptop kernel: [ 880.499964] RDX: 0000000000000003 RSI: ffffba9242002634 RDI: ffffba9242009400 Jan 19 15:35:43 laptop kernel: [ 880.499965] RBP: ffffa01e106dfb18 R08: 0000000000000000 R09: 0000000000000000 Jan 19 15:35:43 laptop kernel: [ 880.499965] R10: ffffa01e0f6d8750 R11: 000000000000052e R12: 00000000ffffffff Jan 19 15:35:43 laptop kernel: [ 880.499966] R13: ffffa01e0ed09000 R14: ffffa01e0f27f180 R15: ffffffffffffffff Jan 19 15:35:43 laptop kernel: [ 880.499967] FS: 00007efe64284a40(0000) GS:ffffa01e1f280000(0000) knlGS:0000000000000000 Jan 19 15:35:43 laptop kernel: [ 880.499967] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jan 19 15:35:43 laptop kernel: [ 880.499968] CR2: 00005578cc2abfd8 CR3: 00000001cee69000 CR4: 00000000001406e0 Jan 19 15:35:43 laptop kernel: [ 880.499968] Stack: Jan 19 15:35:43 laptop kernel: [ 880.499969] ffffffffc075398b 0000000000000000 ffffa01e10e32000 ffffa01e0ed09000 Jan 19 15:35:43 laptop kernel: [ 880.499971] ffffa01e106dfb28 ffffffffc07534ff ffffa01e106dfb78 ffffffffc0773cfd Jan 19 15:35:43 laptop kernel: [ 880.499972] ffffa01e0f721400 ffffa01e10714d00 0000023000000000 ffffa01e10e32180 Jan 19 15:35:43 laptop kernel: [ 880.499974] Call Trace: Jan 19 15:35:43 laptop kernel: [ 880.500006] [] ? nv04_timer_read+0x3b/0x70 [nouveau] Jan 19 15:35:43 laptop kernel: [ 880.500026] [] nvkm_timer_read+0xf/0x20 [nouveau] Jan 19 15:35:43 laptop kernel: [ 880.500047] [] gf100_fifo_gpfifo_engine_fini+0x7d/0x180 [nouveau] Jan 19 15:35:43 laptop kernel: [ 880.500067] [] nvkm_fifo_chan_child_fini+0x65/0x110 [nouveau] Jan 19 15:35:43 laptop kernel: [ 880.500080] [] nvkm_oproxy_fini+0x2e/0x90 [nouveau] Jan 19 15:35:43 laptop kernel: [ 880.500093] [] nvkm_object_fini+0xeb/0x230 [nouveau] Jan 19 15:35:43 laptop kernel: [ 880.500105] [] nvkm_ioctl_del+0x2c/0x90 [nouveau] Jan 19 15:35:43 laptop kernel: [ 880.500118] [] nvkm_ioctl+0x107/0x260 [nouveau] Jan 19 15:35:43 laptop kernel: [ 880.500119] [] ? __dev_printk+0x3c/0x80 Jan 19 15:35:43 laptop kernel: [ 880.500140] [] nvkm_client_ioctl+0x12/0x20 [nouveau] Jan 19 15:35:43 laptop kernel: [ 880.500151] [] nvif_object_ioctl+0x41/0x50 [nouveau] Jan 19 15:35:43 laptop kernel: [ 880.500163] [] nvif_object_fini+0x5a/0x80 [nouveau] Jan 19 15:35:43 laptop kernel: [ 880.500183] [] nouveau_abi16_ntfy_fini+0x1a/0x60 [nouveau] Jan 19 15:35:43 laptop kernel: [ 880.500202] [] nouveau_abi16_ioctl_gpuobj_free+0xca/0xf0 [nouveau] Jan 19 15:35:43 laptop kernel: [ 880.500214] [] drm_ioctl+0x200/0x4f0 [drm] Jan 19 15:35:43 laptop kernel: [ 880.500233] [] ? nouveau_abi16_ioctl_notifierobj_alloc+0x290/0x290 [nouveau] Jan 19 15:35:43 laptop kernel: [ 880.500235] [] ? tlb_finish_mmu+0x1c/0x50 Jan 19 15:35:43 laptop kernel: [ 880.500254] [] nouveau_drm_ioctl+0x74/0xc0 [nouveau] Jan 19 15:35:43 laptop kernel: [ 880.500256] [] do_vfs_ioctl+0xa3/0x610 Jan 19 15:35:43 laptop kernel: [ 880.500258] [] ? __do_page_fault+0x266/0x4e0 Jan 19 15:35:43 laptop kernel: [ 880.500259] [] SyS_ioctl+0x79/0x90 Jan 19 15:35:43 laptop kernel: [ 880.500261] [] entry_SYSCALL_64_fastpath+0x1e/0xa8 Jan 19 15:35:43 laptop kernel: [ 880.500262] Code: 03 00 77 25 48 81 ff 00 00 01 00 76 05 0f b7 d7 ed c3 55 48 c7 c6 cf eb cc ab 48 89 e5 e8 19 ff ff ff b8 ff ff ff ff 5d c3 8b 07 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 48 81 fe ff ff Jan 19 15:35:51 laptop kernel: [ 888.514794] INFO: rcu_sched self-detected stall on CPU Jan 19 15:35:51 laptop kernel: [ 888.515576] 2-...: (14999 ticks this GP) idle=523/140000000000001/0 softirq=30572/30596 fqs=7477 Jan 19 15:35:51 laptop kernel: [ 888.516350] (t=15001 jiffies g=20507 c=20506 q=15456) Jan 19 15:35:51 laptop kernel: [ 888.517108] Task dump for CPU 2: Jan 19 15:35:51 laptop kernel: [ 888.517109] Xorg R running task 0 2904 2806 0x0040000c Jan 19 15:35:51 laptop kernel: [ 888.517111] ffffa01e104a8000 0000000045608f3b ffffa01e1f283db0 ffffffffab0b1439 Jan 19 15:35:51 laptop kernel: [ 888.517113] 0000000000000002 ffffffffabf5d200 ffffa01e1f283dc8 ffffffffab0b3dc7 Jan 19 15:35:51 laptop kernel: [ 888.517114] 0000000000000002 ffffa01e1f283e00 ffffffffab19f73e ffffa01e1f29a080 Jan 19 15:35:51 laptop kernel: [ 888.517116] Call Trace: Jan 19 15:35:51 laptop kernel: [ 888.517116] [] sched_show_task+0xa9/0x110 Jan 19 15:35:51 laptop kernel: [ 888.517123] [] dump_cpu_task+0x37/0x40 Jan 19 15:35:51 laptop kernel: [ 888.517125] [] rcu_dump_cpu_stacks+0x97/0xb9 Jan 19 15:35:51 laptop kernel: [ 888.517126] [] rcu_check_callbacks+0x6f6/0x840 Jan 19 15:35:51 laptop kernel: [ 888.517129] [] ? acct_account_cputime+0x1c/0x20 Jan 19 15:35:51 laptop kernel: [ 888.517130] [] ? account_system_time+0x82/0x130 Jan 19 15:35:51 laptop kernel: [ 888.517131] [] ? tick_sched_handle.isra.12+0x60/0x60 Jan 19 15:35:51 laptop kernel: [ 888.517133] [] update_process_times+0x2f/0x60 Jan 19 15:35:51 laptop kernel: [ 888.517134] [] tick_sched_handle.isra.12+0x25/0x60 Jan 19 15:35:51 laptop kernel: [ 888.517135] [] tick_sched_timer+0x3d/0x70 Jan 19 15:35:51 laptop kernel: [ 888.517137] [] __hrtimer_run_queues+0xf3/0x270 Jan 19 15:35:51 laptop kernel: [ 888.517138] [] hrtimer_interrupt+0x9a/0x180 Jan 19 15:35:51 laptop kernel: [ 888.517141] [] local_apic_timer_interrupt+0x38/0x60 Jan 19 15:35:51 laptop kernel: [ 888.517143] [] smp_apic_timer_interrupt+0x3d/0x50 Jan 19 15:35:51 laptop kernel: [ 888.517144] [] apic_timer_interrupt+0x82/0x90 Jan 19 15:35:51 laptop kernel: [ 888.517144] [] ? ioread32+0x30/0x40 Jan 19 15:35:51 laptop kernel: [ 888.517176] [] ? gf100_fifo_gpfifo_engine_fini+0x9e/0x180 [nouveau] Jan 19 15:35:51 laptop kernel: [ 888.517196] [] nvkm_fifo_chan_child_fini+0x65/0x110 [nouveau] Jan 19 15:35:51 laptop kernel: [ 888.517209] [] nvkm_oproxy_fini+0x2e/0x90 [nouveau] Jan 19 15:35:51 laptop kernel: [ 888.517222] [] nvkm_object_fini+0xeb/0x230 [nouveau] Jan 19 15:35:51 laptop kernel: [ 888.517234] [] nvkm_ioctl_del+0x2c/0x90 [nouveau] Jan 19 15:35:51 laptop kernel: [ 888.517247] [] nvkm_ioctl+0x107/0x260 [nouveau] Jan 19 15:35:51 laptop kernel: [ 888.517248] [] ? __dev_printk+0x3c/0x80 Jan 19 15:35:51 laptop kernel: [ 888.517269] [] nvkm_client_ioctl+0x12/0x20 [nouveau] Jan 19 15:35:51 laptop kernel: [ 888.517280] [] nvif_object_ioctl+0x41/0x50 [nouveau] Jan 19 15:35:51 laptop kernel: [ 888.517292] [] nvif_object_fini+0x5a/0x80 [nouveau] Jan 19 15:35:51 laptop kernel: [ 888.517311] [] nouveau_abi16_ntfy_fini+0x1a/0x60 [nouveau] Jan 19 15:35:51 laptop kernel: [ 888.517330] [] nouveau_abi16_ioctl_gpuobj_free+0xca/0xf0 [nouveau] Jan 19 15:35:51 laptop kernel: [ 888.517342] [] drm_ioctl+0x200/0x4f0 [drm] Jan 19 15:35:51 laptop kernel: [ 888.517361] [] ? nouveau_abi16_ioctl_notifierobj_alloc+0x290/0x290 [nouveau] Jan 19 15:35:51 laptop kernel: [ 888.517363] [] ? tlb_finish_mmu+0x1c/0x50 Jan 19 15:35:51 laptop kernel: [ 888.517382] [] nouveau_drm_ioctl+0x74/0xc0 [nouveau] Jan 19 15:35:51 laptop kernel: [ 888.517384] [] do_vfs_ioctl+0xa3/0x610 Jan 19 15:35:51 laptop kernel: [ 888.517386] [] ? __do_page_fault+0x266/0x4e0 Jan 19 15:35:51 laptop kernel: [ 888.517387] [] SyS_ioctl+0x79/0x90 Jan 19 15:35:51 laptop kernel: [ 888.517389] [] entry_SYSCALL_64_fastpath+0x1e/0xa8 ... and the system hangs, it can be shut down only by holding the power button.