Nov 14 19:06:12 hpprol2 kernel: nouveau 0000:0a:00.0: fifo: PBDMA0: 80000000 [] ch 30 [007e6ab000 kscreenlocker_g[4257]] subc 6 mthd 2878 data a0c02020 Nov 14 19:06:12 hpprol2 kernel: nouveau 0000:0a:00.0: fifo: PBDMA0: 80024000 [] ch 30 [007e6ab000 kscreenlocker_g[4257]] subc 0 mthd 0000 data 00000000 Nov 14 19:06:12 hpprol2 kernel: nouveau 0000:0a:00.0: fifo: PBDMA0: 80064000 [] ch 30 [007e6ab000 kscreenlocker_g[4257]] subc 0 mthd 0000 data 00000000 Nov 14 19:06:12 hpprol2 kernel: nouveau 0000:0a:00.0: fifo: read fault at 7921385000 engine 07 [PFIFO] client 06 [PFIFO] reason 03 [VM_LIMIT_EXCEEDED] on channel 30 [007e6ab000 kscreenlocker_g[4257]] Nov 14 19:06:12 hpprol2 kernel: nouveau 0000:0a:00.0: fifo: fifo engine fault on channel 30, recovering... Nov 14 19:08:29 hpprol2 dhcpd[1850]: DHCPINFORM from 192.168.1.188 via br0 Nov 14 19:08:29 hpprol2 dhcpd[1850]: DHCPACK to 192.168.1.188 (ec:f4:bb:2c:fe:2b) via br0 Nov 14 19:13:39 hpprol2 dhcpd[1850]: DHCPINFORM from 192.168.1.188 via br0 Nov 14 19:13:39 hpprol2 dhcpd[1850]: DHCPACK to 192.168.1.188 (ec:f4:bb:2c:fe:2b) via br0 Nov 14 19:17:46 hpprol2 dhcpd[1850]: DHCPINFORM from 192.168.1.188 via br0 Nov 14 19:17:46 hpprol2 dhcpd[1850]: DHCPACK to 192.168.1.188 (ec:f4:bb:2c:fe:2b) via br0 Nov 14 19:18:49 hpprol2 dhcpd[1850]: DHCPINFORM from 192.168.1.188 via br0 Nov 14 19:18:49 hpprol2 dhcpd[1850]: DHCPACK to 192.168.1.188 (ec:f4:bb:2c:fe:2b) via br0 Nov 14 19:19:44 hpprol2 kernel: INFO: task kworker/0:2:363 blocked for more than 480 seconds. Nov 14 19:19:44 hpprol2 kernel: Not tainted 4.3.0-1-xen #1 Nov 14 19:19:44 hpprol2 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Nov 14 19:19:44 hpprol2 kernel: kworker/0:2 D ffff8802dca0d800 0 363 2 0x00000080 Nov 14 19:19:44 hpprol2 kernel: Workqueue: events gf100_fifo_recover_work [nouveau] Nov 14 19:19:44 hpprol2 kernel: ffff8800ffde3bd8 0000000000000246 ffffffff80a3fa80 ffff8800ffdde1c0 Nov 14 19:19:44 hpprol2 kernel: ffff8802d6e186c0 ffff8802d6e18840 00000000000001c7 0000000000000003 Nov 14 19:19:44 hpprol2 kernel: 0000000000000000 0000000000000018 ffff8800ffde4000 00000000000000e1 Nov 14 19:19:44 hpprol2 kernel: Call Trace: Nov 14 19:19:44 hpprol2 kernel: [] schedule+0x33/0x80 Nov 14 19:19:44 hpprol2 kernel: [] schedule_timeout+0x183/0x240 Nov 14 19:19:44 hpprol2 kernel: [] wait_for_completion+0x80/0x130 Nov 14 19:19:44 hpprol2 kernel: [] flush_work+0x102/0x1d0 Nov 14 19:19:44 hpprol2 kernel: [] gf100_fifo_fini+0x15/0x20 [nouveau] Nov 14 19:19:44 hpprol2 kernel: [] nvkm_fifo_fini+0x1c/0x30 [nouveau] Nov 14 19:19:44 hpprol2 kernel: [] nvkm_engine_fini+0x20/0x30 [nouveau] Nov 14 19:19:44 hpprol2 kernel: [] nvkm_subdev_fini+0x61/0x1e0 [nouveau] Nov 14 19:19:44 hpprol2 kernel: [] gf100_fifo_recover_work+0xe3/0x200 [nouveau] Nov 14 19:19:44 hpprol2 kernel: [] process_one_work+0x1b5/0x450 Nov 14 19:19:44 hpprol2 kernel: [] worker_thread+0x4b/0x500 Nov 14 19:19:44 hpprol2 kernel: [] kthread+0xc9/0xe0 Nov 14 19:19:44 hpprol2 kernel: [] ret_from_fork+0x4a/0x74 Nov 14 19:19:44 hpprol2 kernel: DWARF2 unwinder stuck at ret_from_fork+0x4a/0x74 Nov 14 19:19:44 hpprol2 kernel: Nov 14 19:19:44 hpprol2 kernel: Leftover inexact backtrace: Nov 14 19:19:44 hpprol2 kernel: [] ? kthread_park+0x60/0x60 Nov 14 19:21:51 hpprol2 dhcpd[1850]: DHCPINFORM from 192.168.1.188 via br0 Nov 14 19:21:51 hpprol2 dhcpd[1850]: DHCPACK to 192.168.1.188 (ec:f4:bb:2c:fe:2b) via br0 Nov 14 19:24:52 hpprol2 dhcpd[1850]: DHCPINFORM from 192.168.1.188 via br0 Nov 14 19:24:52 hpprol2 dhcpd[1850]: DHCPACK to 192.168.1.188 (ec:f4:bb:2c:fe:2b) via br0 Nov 14 19:26:41 hpprol2 dhcpd[1850]: DHCPINFORM from 192.168.1.188 via br0 Nov 14 19:26:41 hpprol2 dhcpd[1850]: DHCPACK to 192.168.1.188 (ec:f4:bb:2c:fe:2b) via br0 Nov 14 19:27:44 hpprol2 kernel: INFO: task kworker/0:2:363 blocked for more than 480 seconds. Nov 14 19:27:44 hpprol2 kernel: Not tainted 4.3.0-1-xen #1 Nov 14 19:27:44 hpprol2 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Nov 14 19:27:44 hpprol2 kernel: kworker/0:2 D ffff8802dca0d800 0 363 2 0x00000080 Nov 14 19:27:44 hpprol2 kernel: Workqueue: events gf100_fifo_recover_work [nouveau] Nov 14 19:27:44 hpprol2 kernel: ffff8800ffde3bd8 0000000000000246 ffffffff80a3fa80 ffff8800ffdde1c0 Nov 14 19:27:44 hpprol2 kernel: ffff8802d6e186c0 ffff8802d6e18840 00000000000001c7 0000000000000003 Nov 14 19:27:44 hpprol2 kernel: 0000000000000000 0000000000000018 ffff8800ffde4000 00000000000000e1 Nov 14 19:27:44 hpprol2 kernel: Call Trace: Nov 14 19:27:44 hpprol2 kernel: [] schedule+0x33/0x80 Nov 14 19:27:44 hpprol2 kernel: [] schedule_timeout+0x183/0x240 Nov 14 19:27:44 hpprol2 kernel: [] wait_for_completion+0x80/0x130 many repeat of Nov 14 19:19:44 hpprol2 kernel: INFO: task kworker/0:2:363 blocked for more than 480 seconds. Nov 14 19:19:44 hpprol2 kernel: Not tainted 4.3.0-1-xen #1 Nov 14 19:19:44 hpprol2 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Nov 14 19:19:44 hpprol2 kernel: kworker/0:2 D ffff8802dca0d800 0 363 2 0x00000080 lock occurs with this final error Nov 14 20:56:50 hpprol2 kernel: nouveau 0000:0a:00.0: kscreenlocker_g[4257]: failed to idle channel 0xcccc0000 [kscreenlocker_g[4257]] Nov 14 20:57:00 hpprol2 kernel: NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [QXcbEventReader:4258] Nov 14 20:57:00 hpprol2 kernel: Modules linked in: fuse af_packet bridge stp llc iscsi_ibft iscsi_boot_sysfs dm_mod ipmi_ssif coretemp crct10dif_pclmul crc32_pclmul crc32c_intel snd_oxygen snd_oxygen_lib aesn Nov 14 20:57:00 hpprol2 kernel: pps_core ttm libphy hwmon usbcore usb_common drm i2c_core hpsa wmi fjes button xenblk cdrom xennet sg Nov 14 20:57:00 hpprol2 kernel: CPU: 0 PID: 4258 Comm: QXcbEventReader Not tainted 4.3.0-1-xen #1 Nov 14 20:57:00 hpprol2 kernel: Hardware name: HP ProLiant ML350p Gen8, BIOS P72 11/14/2013 Nov 14 20:57:00 hpprol2 kernel: task: ffff8802a1998080 ti: ffff8802bc9a8000 task.ti: ffff8802bc9a8000 Nov 14 20:57:00 hpprol2 kernel: RIP: e030:[] [] ioread32+0x30/0x40 Nov 14 20:57:00 hpprol2 kernel: RSP: e02b:ffff8802bc9abac0 EFLAGS: 00000296 Nov 14 20:57:00 hpprol2 kernel: RAX: 0000000081012eac RBX: ffff8800e081f040 RCX: ffff8800fb64cc00 Nov 14 20:57:00 hpprol2 kernel: RDX: ffffc9000017e000 RSI: 00000000000001e0 RDI: ffffc9000017e1e0 Nov 14 20:57:00 hpprol2 kernel: RBP: ffff8802bc9abac8 R08: 00000000ff000092 R09: ffff8800e081f040 Nov 14 20:57:00 hpprol2 kernel: R10: 0000000000000001 R11: ffff8802d6006098 R12: ffff8800fb64cc00 Nov 14 20:57:00 hpprol2 kernel: R13: 0000000000000000 R14: ffff8802b65ae6e0 R15: ffff8802a1d81800 Nov 14 20:57:00 hpprol2 kernel: FS: 00007fa4f336d700(0000) GS:ffff8802dca00000(0000) knlGS:0000000000000000 Nov 14 20:57:00 hpprol2 kernel: CS: e033 DS: 0000 ES: 0000 CR0: 0000000080050033 Nov 14 20:57:00 hpprol2 kernel: CR2: ffff800000778138 CR3: 0000000000bc5000 CR4: 0000000000042660 Nov 14 20:57:00 hpprol2 kernel: Stack: Nov 14 20:57:00 hpprol2 kernel: ffffffffa03ae273 ffff8802bc9abad8 ffffffffa03c390e ffff8802bc9abaf0 Nov 14 20:57:00 hpprol2 kernel: ffffffffa03c1ba0 ffff8800e081f040 ffff8802bc9abb18 ffffffffa03c23ee Nov 14 20:57:00 hpprol2 kernel: ffff8800e081f040 ffff8802a1998080 0000000000000000 ffff8802bc9abb40 Nov 14 20:57:00 hpprol2 kernel: Call Trace: Nov 14 20:57:00 hpprol2 kernel: [] nouveau_bo_rd32+0x33/0x60 [nouveau] Nov 14 20:57:00 hpprol2 kernel: [] nv84_fence_read+0x2e/0x30 [nouveau] Nov 14 20:57:00 hpprol2 kernel: [] nouveau_fence_is_signaled+0x20/0x30 [nouveau] Nov 14 20:57:00 hpprol2 kernel: [] nouveau_fence_done+0x8e/0xc0 [nouveau] Nov 14 20:57:00 hpprol2 kernel: [] nouveau_fence_wait+0xa3/0xc0 [nouveau] Nov 14 20:57:00 hpprol2 kernel: [] nouveau_channel_idle+0x97/0xc0 [nouveau] Nov 14 20:57:00 hpprol2 kernel: [] nouveau_abi16_chan_fini.isra.1+0xf7/0x1c0 [nouveau] Nov 14 20:57:00 hpprol2 kernel: [] nouveau_abi16_fini+0x3d/0x80 [nouveau] Nov 14 20:57:00 hpprol2 kernel: [] nouveau_drm_preclose+0x4a/0xa0 [nouveau] Nov 14 20:57:00 hpprol2 kernel: [] drm_release+0xab/0x500 [drm] Nov 14 20:57:00 hpprol2 kernel: [] __fput+0xcb/0x1d0 Nov 14 20:57:00 hpprol2 kernel: [] ____fput+0xe/0x10 Nov 14 20:57:00 hpprol2 kernel: [] task_work_run+0x73/0x90 Nov 14 20:57:00 hpprol2 kernel: [] do_exit+0x371/0xae0 Nov 14 20:57:00 hpprol2 kernel: [] do_group_exit+0x47/0xc0 Nov 14 20:57:00 hpprol2 kernel: [] get_signal+0x28f/0x690 Nov 14 20:57:00 hpprol2 kernel: [] do_signal+0x20/0x110 Nov 14 20:57:00 hpprol2 kernel: [] prepare_exit_to_usermode+0xc4/0x100 Nov 14 20:57:00 hpprol2 kernel: [] syscall_return_slowpath+0x4c/0x130 Nov 14 20:57:00 hpprol2 kernel: [] int_ret_from_sys_call+0x25/0x53 Nov 14 20:57:00 hpprol2 kernel: DWARF2 unwinder stuck at int_ret_from_sys_call+0x25/0x53 Nov 14 20:57:00 hpprol2 kernel: Nov 14 20:57:00 hpprol2 kernel: Leftover inexact backtrace: Nov 14 20:57:00 hpprol2 kernel: [] ? __lock_text_end+0x1/0x1 Nov 14 20:57:00 hpprol2 kernel: Code: 03 00 77 25 48 81 ff 00 00 01 00 76 05 0f b7 d7 ed c3 55 48 c7 c6 51 07 81 80 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 Nov 14 20:57:03 hpprol2 systemd-coredump[7415]: Process 4257 (kscreenlocker_g) of user 1000 dumped core. Nov 14 20:57:05 hpprol2 kernel: nouveau 0000:0a:00.0: kscreenlocker_g[4257]: failed to idle channel 0xcccc0000 [kscreenlocker_g[4257]] Nov 14 20:57:07 hpprol2 kernel: nouveau 0000:0a:00.0: Xorg[1828]: nv50cal_space: -16