This is the closest, most recent report I could find with something which also appears kernel related Kernel 6.5.0-27 -- works fine Kernel 6.5.0-28 -- graphics hard-hangs - sddm never displays, vtty can't be activated shh works, sddm and x11 processes can not be killed, reboot hangs, hard power cycle required
I see reports like this literally for years, yet seemingly no resolution. Now I'm bit, in a way suspiciously kernel version related Common internet "use nvidia drivers" wisdom is unworkable as old nvidia hardware is not supported on 22.04 04:00.0 VGA compatible controller: NVIDIA Corporation MCP89 [GeForce 320M] (rev a2) Again, for me, this is with 22.04, kernel 6.5.0-28 All the various combinations of nouveau flags to kernel boot which have helped reduce garbage or sddm troubles don't help. Here's a relevant boot log: Apr 20 21:06:29 Konnekt sddm-greeter[922]: Adding view for "LVDS-1" QRect(0,0 1280x800) Apr 20 21:06:29 Konnekt kernel: nouveau 0000:04:00.0: fifo: DMA_PUSHER - ch 3 [sddm-greeter[922]] get 0000216004 put 0000216088 ib_get 00000007 ib_put 00000007 state 800081a4 (err: INVALID_CMD) push 00400040 Apr 20 21:06:29 Konnekt kernel: nouveau 0000:04:00.0: fifo: DMA_PUSHER - ch 3 [sddm-greeter[922]] get 000021608c put 0000217b7c ib_get 00000009 ib_put 0000000a state 80000000 (err: INVALID_CMD) push 00400040 Apr 20 21:06:29 Konnekt kernel: nouveau 0000:04:00.0: fifo: DMA_PUSHER - ch 3 [sddm-greeter[922]] get 0000218ff0 put 000021932c ib_get 0000000d ib_put 00000012 state 80000000 (err: INVALID_CMD) push 00400040 Apr 20 21:06:29 Konnekt kernel: nouveau 0000:04:00.0: fifo: DMA_PUSHER - ch 3 [sddm-greeter[922]] get 0000219a48 put 0000219a64 ib_get 0000001f ib_put 00000024 state 80000000 (err: INVALID_CMD) push 00400040 Apr 20 21:06:29 Konnekt kernel: nouveau 0000:04:00.0: fifo: DMA_PUSHER - ch 3 [sddm-greeter[922]] get 0000219a64 put 0000219a7c ib_get 00000021 ib_put 00000024 state 80000024 (err: INVALID_CMD) push 00400040 Apr 20 21:06:29 Konnekt kernel: nouveau 0000:04:00.0: fifo: DMA_PUSHER - ch 3 [sddm-greeter[922]] get 0000219a7c put 0000219a8c ib_get 00000023 ib_put 00000024 state 80000000 (err: INVALID_CMD) push 00400040 Apr 20 21:06:29 Konnekt kernel: nouveau 0000:04:00.0: fifo: DMA_PUSHER - ch 3 [sddm-greeter[922]] get 0000219a8c put 0000219ccc ib_get 00000025 ib_put 0000002a state 80000024 (err: INVALID_CMD) push 00400040 Apr 20 21:06:29 Konnekt kernel: nouveau 0000:04:00.0: fifo: DMA_PUSHER - ch 3 [sddm-greeter[922]] get 0000219de8 put 0000219df8 ib_get 0000002f ib_put 00000030 state 40000004 (err: INVALID_MTHD) push 00400040 Apr 20 21:06:29 Konnekt kernel: nouveau 0000:04:00.0: fifo: CACHE_ERROR - ch 3 [sddm-greeter[922]] subc 0 mthd 0000 data 20000000 Apr 20 21:06:29 Konnekt kernel: nouveau 0000:04:00.0: fifo: DMA_PUSHER - ch 3 [sddm-greeter[922]] get 0000219ef0 put 000021a2f0 ib_get 00000033 ib_put 00000038 state 80000000 (err: INVALID_CMD) push 00400040 Apr 20 21:06:29 Konnekt kernel: nouveau 0000:04:00.0: fifo: DMA_PUSHER - ch 3 [sddm-greeter[922]] get 0020b10960 put 0020b10ac8 ib_get 00000042 ib_put 00000044 state 80000000 (err: INVALID_CMD) push 00400040 Apr 20 21:06:29 Konnekt kernel: nouveau 0000:04:00.0: fifo: DMA_PUSHER - ch 3 [sddm-greeter[922]] get 000021aff8 put 000021bdf4 ib_get 0000004b ib_put 0000004c state 80000000 (err: INVALID_CMD) push 00400040 Apr 20 21:06:29 Konnekt kernel: nouveau 0000:04:00.0: fifo: DMA_PUSHER - ch 3 [sddm-greeter[922]] get 000021c248 put 000021c620 ib_get 0000004d ib_put 0000004e state 80000000 (err: INVALID_CMD) push 00400040 Apr 20 21:06:29 Konnekt kernel: nouveau 0000:04:00.0: fifo: DMA_PUSHER - ch 3 [sddm-greeter[922]] get 0000417a40 put 0000417a4c ib_get 00000056 ib_put 00000058 state 80000000 (err: INVALID_CMD) push 00400040 Apr 20 21:06:29 Konnekt kernel: nouveau 0000:04:00.0: fifo: DMA_PUSHER - ch 3 [sddm-greeter[922]] get 0000417b54 put 0000417b5c ib_get 0000005c ib_put 0000005e state 80000000 (err: INVALID_CMD) push 00400040 Apr 20 21:06:29 Konnekt kernel: nouveau 0000:04:00.0: fifo: DMA_PUSHER - ch 3 [sddm-greeter[922]] get 00004d3370 put 00004d33f4 ib_get 00000062 ib_put 00000064 state 80000000 (err: INVALID_CMD) push 00400040 Apr 20 21:06:29 Konnekt kernel: nouveau 0000:04:00.0: fifo: DMA_PUSHER - ch 3 [sddm-greeter[922]] get 00004db3c0 put 00004db450 ib_get 00000068 ib_put 0000006a state 80000000 (err: INVALID_CMD) push 00400040 Apr 20 21:06:29 Konnekt kernel: nouveau 0000:04:00.0: fifo: DMA_PUSHER - ch 3 [sddm-greeter[922]] get 000021d000 put 000021d150 ib_get 0000006b ib_put 0000006c state 80000000 (err: INVALID_CMD) push 00400040 Apr 20 21:06:29 Konnekt kernel: nouveau 0000:04:00.0: fifo: DMA_PUSHER - ch 3 [sddm-greeter[922]] get 0000417c50 put 0000417c5c ib_get 0000006e ib_put 00000070 state 80000000 (err: INVALID_CMD) push 00400040 Apr 20 21:06:29 Konnekt kernel: nouveau 0000:04:00.0: fifo: DMA_PUSHER - ch 3 [sddm-greeter[922]] get 00004d3630 put 00004d3684 ib_get 0000007a ib_put 0000007c state 80000000 (err: INVALID_CMD) push 00400040 Apr 20 21:06:29 Konnekt kernel: nouveau 0000:04:00.0: fifo: DMA_PUSHER - ch 3 [sddm-greeter[922]] get 00004d3a30 put 00004d3a84 ib_get 00000080 ib_put 00000082 state 80000000 (err: INVALID_CMD) push 00400040 Apr 20 21:06:29 Konnekt kernel: nouveau 0000:04:00.0: fifo: DMA_PUSHER - ch 3 [sddm-greeter[922]] get 0020b117d0 put 0020b118fc ib_get 0000008c ib_put 0000008e state 80000000 (err: INVALID_CMD) push 00400040 Apr 20 21:06:29 Konnekt kernel: nouveau 0000:04:00.0: fifo: DMA_PUSHER - ch 3 [sddm-greeter[922]] get 00004d3de0 put 00004d3e28 ib_get 00000092 ib_put 00000094 state 80000000 (err: INVALID_CMD) push 00400040 Apr 20 21:06:29 Konnekt kernel: nouveau 0000:04:00.0: fifo: DMA_PUSHER - ch 3 [sddm-greeter[922]] get 0000417e50 put 0000417e5c ib_get 00000098 ib_put 0000009a state 80000000 (err: INVALID_CMD) push 00400040 Apr 20 21:06:29 Konnekt kernel: nouveau 0000:04:00.0: fifo: DMA_PUSHER - ch 3 [sddm-greeter[922]] get 000021ef00 put 000021efbc ib_get 000000ad ib_put 000000ae state 80000000 (err: INVALID_CMD) push 00400040 Apr 20 21:06:29 Konnekt kernel: nouveau 0000:04:00.0: fifo: DMA_PUSHER - ch 3 [sddm-greeter[922]] get 000021f000 put 000021f350 ib_get 000000b3 ib_put 000000b4 state 80000000 (err: INVALID_CMD) push 00400040 Apr 20 21:06:29 Konnekt kernel: nouveau 0000:04:00.0: fifo: DMA_PUSHER - ch 3 [sddm-greeter[922]] get 00004ae990 put 00004ae9cc ib_get 000000b6 ib_put 000000b8 state 80000000 (err: INVALID_CMD) push 00400040 Apr 20 21:06:29 Konnekt kernel: nouveau 0000:04:00.0: fifo: DMA_PUSHER - ch 3 [sddm-greeter[922]] get 00004dbe90 put 00004dbf8c ib_get 000000bc ib_put 000000be state 80000000 (err: INVALID_CMD) push 00400040 [...] Apr 20 21:08:47 Konnekt kernel: INFO: task kworker/u4:3:53 blocked for more than 120 seconds. Apr 20 21:08:47 Konnekt kernel: Tainted: P OE 6.5.0-28-generic #29~22.04.1-Ubuntu Apr 20 21:08:47 Konnekt kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Apr 20 21:08:47 Konnekt kernel: task:kworker/u4:3 state:D stack:0 pid:53 ppid:2 flags:0x00004000 Apr 20 21:08:47 Konnekt kernel: Workqueue: events_unbound nv50_disp_atomic_commit_work [nouveau] Apr 20 21:08:47 Konnekt kernel: Call Trace: Apr 20 21:08:47 Konnekt kernel: <TASK> Apr 20 21:08:47 Konnekt kernel: __schedule+0x2cb/0x750 Apr 20 21:08:47 Konnekt kernel: schedule+0x63/0x110 Apr 20 21:08:47 Konnekt kernel: schedule_timeout+0x157/0x170 Apr 20 21:08:47 Konnekt kernel: dma_fence_default_wait+0x13d/0x210 Apr 20 21:08:47 Konnekt kernel: ? __pfx_dma_fence_default_wait_cb+0x10/0x10 Apr 20 21:08:47 Konnekt kernel: dma_fence_wait_timeout+0x116/0x140 Apr 20 21:08:47 Konnekt kernel: drm_atomic_helper_wait_for_fences+0x172/0x200 [drm_kms_helper] Apr 20 21:08:47 Konnekt kernel: nv50_disp_atomic_commit_tail+0x86/0xaf0 [nouveau] Apr 20 21:08:47 Konnekt kernel: nv50_disp_atomic_commit_work+0x12/0x20 [nouveau] Apr 20 21:08:47 Konnekt kernel: process_one_work+0x240/0x450 Apr 20 21:08:47 Konnekt kernel: worker_thread+0x50/0x3f0 Apr 20 21:08:47 Konnekt kernel: ? __pfx_worker_thread+0x10/0x10 Apr 20 21:08:47 Konnekt kernel: kthread+0xf2/0x120 Apr 20 21:08:47 Konnekt kernel: ? __pfx_kthread+0x10/0x10 Apr 20 21:08:47 Konnekt kernel: ret_from_fork+0x47/0x70 Apr 20 21:08:47 Konnekt kernel: ? __pfx_kthread+0x10/0x10 Apr 20 21:08:47 Konnekt kernel: ret_from_fork_asm+0x1b/0x30 Apr 20 21:08:47 Konnekt kernel: </TASK> [...] Apr 20 21:10:48 Konnekt kernel: INFO: task kworker/u4:3:53 blocked for more than 241 seconds. Apr 20 21:10:48 Konnekt kernel: Tainted: P OE 6.5.0-28-generic #29~22.04.1-Ubuntu Apr 20 21:10:48 Konnekt kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Apr 20 21:10:48 Konnekt kernel: task:kworker/u4:3 state:D stack:0 pid:53 ppid:2 flags:0x00004000 Apr 20 21:10:48 Konnekt kernel: Workqueue: events_unbound nv50_disp_atomic_commit_work [nouveau] Apr 20 21:10:48 Konnekt kernel: Call Trace: Apr 20 21:10:48 Konnekt kernel: <TASK> Apr 20 21:10:48 Konnekt kernel: __schedule+0x2cb/0x750 Apr 20 21:10:48 Konnekt kernel: schedule+0x63/0x110 Apr 20 21:10:48 Konnekt kernel: schedule_timeout+0x157/0x170 Apr 20 21:10:48 Konnekt kernel: dma_fence_default_wait+0x13d/0x210 Apr 20 21:10:48 Konnekt kernel: ? __pfx_dma_fence_default_wait_cb+0x10/0x10 Apr 20 21:10:48 Konnekt kernel: dma_fence_wait_timeout+0x116/0x140 Apr 20 21:10:48 Konnekt kernel: drm_atomic_helper_wait_for_fences+0x172/0x200 [drm_kms_helper] Apr 20 21:10:48 Konnekt kernel: nv50_disp_atomic_commit_tail+0x86/0xaf0 [nouveau] Apr 20 21:10:48 Konnekt kernel: nv50_disp_atomic_commit_work+0x12/0x20 [nouveau] Apr 20 21:10:48 Konnekt kernel: process_one_work+0x240/0x450 Apr 20 21:10:48 Konnekt kernel: worker_thread+0x50/0x3f0 Apr 20 21:10:48 Konnekt kernel: ? __pfx_worker_thread+0x10/0x10 Apr 20 21:10:48 Konnekt kernel: kthread+0xf2/0x120 Apr 20 21:10:48 Konnekt kernel: ? __pfx_kthread+0x10/0x10 Apr 20 21:10:48 Konnekt kernel: ret_from_fork+0x47/0x70 Apr 20 21:10:48 Konnekt kernel: ? __pfx_kthread+0x10/0x10 Apr 20 21:10:48 Konnekt kernel: ret_from_fork_asm+0x1b/0x30 Apr 20 21:10:48 Konnekt kernel: </TASK> Apr 20 21:10:48 Konnekt kernel: INFO: task Xorg:847 blocked for more than 120 seconds. Apr 20 21:10:48 Konnekt kernel: Tainted: P OE 6.5.0-28-generic #29~22.04.1-Ubuntu Apr 20 21:10:48 Konnekt kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Apr 20 21:10:48 Konnekt kernel: task:Xorg state:D stack:0 pid:847 ppid:781 flags:0x00400006 Apr 20 21:10:48 Konnekt kernel: Call Trace: Apr 20 21:10:48 Konnekt kernel: <TASK> Apr 20 21:10:48 Konnekt kernel: __schedule+0x2cb/0x750 Apr 20 21:10:48 Konnekt kernel: schedule+0x63/0x110 Apr 20 21:10:48 Konnekt kernel: schedule_preempt_disabled+0x15/0x30 Apr 20 21:10:48 Konnekt kernel: __ww_mutex_lock.constprop.0+0x5cd/0xa70 Apr 20 21:10:48 Konnekt kernel: __ww_mutex_lock_slowpath+0x16/0x30 Apr 20 21:10:48 Konnekt kernel: ww_mutex_lock+0x86/0xa0 Apr 20 21:10:48 Konnekt kernel: drm_modeset_lock+0xb9/0xf0 [drm] Apr 20 21:10:48 Konnekt kernel: drm_crtc_get_sequence_ioctl+0x119/0x1f0 [drm] Apr 20 21:10:48 Konnekt kernel: ? __pfx_drm_crtc_get_sequence_ioctl+0x10/0x10 [drm] Apr 20 21:10:48 Konnekt kernel: drm_ioctl_kernel+0xde/0x190 [drm] Apr 20 21:10:48 Konnekt kernel: drm_ioctl+0x2d0/0x550 [drm] Apr 20 21:10:48 Konnekt kernel: ? __pfx_drm_crtc_get_sequence_ioctl+0x10/0x10 [drm] Apr 20 21:10:48 Konnekt kernel: nouveau_drm_ioctl+0x61/0xc0 [nouveau] Apr 20 21:10:48 Konnekt kernel: __x64_sys_ioctl+0xa3/0xf0 Apr 20 21:10:48 Konnekt kernel: do_syscall_64+0x5b/0x90 Apr 20 21:10:48 Konnekt kernel: ? sysvec_apic_timer_interrupt+0x4b/0xd0 Apr 20 21:10:48 Konnekt kernel: entry_SYSCALL_64_after_hwframe+0x6e/0xd8 Apr 20 21:10:48 Konnekt kernel: RIP: 0033:0x7e6249f1a94f Apr 20 21:10:48 Konnekt kernel: RSP: 002b:00007ffd9c760010 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 Apr 20 21:10:48 Konnekt kernel: RAX: ffffffffffffffda RBX: 00007ffd9c7600a0 RCX: 00007e6249f1a94f Apr 20 21:10:48 Konnekt kernel: RDX: 00007ffd9c7600a0 RSI: 00000000c018643b RDI: 0000000000000012 Apr 20 21:10:48 Konnekt kernel: RBP: 00000000c018643b R08: 000056595500f990 R09: 0000000000000000 Apr 20 21:10:48 Konnekt kernel: R10: 00000000000fa000 R11: 0000000000000246 R12: 00007ffd9c7601c8 Apr 20 21:10:48 Konnekt kernel: R13: 0000000000000012 R14: 000056595500ff70 R15: 00007ffd9c760100 Apr 20 21:10:48 Konnekt kernel: </TASK> Apr 20 21:12:49 Konnekt kernel: INFO: task kworker/u4:3:53 blocked for more than 362 seconds. Apr 20 21:12:49 Konnekt kernel: Tainted: P OE 6.5.0-28-generic #29~22.04.1-Ubuntu Apr 20 21:12:49 Konnekt kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Apr 20 21:12:49 Konnekt kernel: task:kworker/u4:3 state:D stack:0 pid:53 ppid:2 flags:0x00004000 Apr 20 21:12:49 Konnekt kernel: Workqueue: events_unbound nv50_disp_atomic_commit_work [nouveau] Apr 20 21:12:49 Konnekt kernel: Call Trace: Apr 20 21:12:49 Konnekt kernel: <TASK> Apr 20 21:12:49 Konnekt kernel: __schedule+0x2cb/0x750 Apr 20 21:12:49 Konnekt kernel: schedule+0x63/0x110 Apr 20 21:12:49 Konnekt kernel: schedule_timeout+0x157/0x170 Apr 20 21:12:49 Konnekt kernel: dma_fence_default_wait+0x13d/0x210 Apr 20 21:12:49 Konnekt kernel: ? __pfx_dma_fence_default_wait_cb+0x10/0x10 Apr 20 21:12:49 Konnekt kernel: dma_fence_wait_timeout+0x116/0x140 Apr 20 21:12:49 Konnekt kernel: drm_atomic_helper_wait_for_fences+0x172/0x200 [drm_kms_helper] Apr 20 21:12:49 Konnekt kernel: nv50_disp_atomic_commit_tail+0x86/0xaf0 [nouveau] Apr 20 21:12:49 Konnekt kernel: nv50_disp_atomic_commit_work+0x12/0x20 [nouveau] Apr 20 21:12:49 Konnekt kernel: process_one_work+0x240/0x450 Apr 20 21:12:49 Konnekt kernel: worker_thread+0x50/0x3f0 Apr 20 21:12:49 Konnekt kernel: ? __pfx_worker_thread+0x10/0x10 Apr 20 21:12:49 Konnekt kernel: kthread+0xf2/0x120 Apr 20 21:12:49 Konnekt kernel: ? __pfx_kthread+0x10/0x10 Apr 20 21:12:49 Konnekt kernel: ret_from_fork+0x47/0x70 Apr 20 21:12:49 Konnekt kernel: ? __pfx_kthread+0x10/0x10 Apr 20 21:12:49 Konnekt kernel: ret_from_fork_asm+0x1b/0x30 Apr 20 21:12:49 Konnekt kernel: </TASK> Apr 20 21:12:49 Konnekt kernel: INFO: task Xorg:847 blocked for more than 241 seconds. Apr 20 21:12:49 Konnekt kernel: Tainted: P OE 6.5.0-28-generic #29~22.04.1-Ubuntu Apr 20 21:12:49 Konnekt kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Apr 20 21:12:49 Konnekt kernel: task:Xorg state:D stack:0 pid:847 ppid:781 flags:0x00400006 Apr 20 21:12:49 Konnekt kernel: Call Trace: Apr 20 21:12:49 Konnekt kernel: <TASK> Apr 20 21:12:49 Konnekt kernel: __schedule+0x2cb/0x750 Apr 20 21:12:49 Konnekt kernel: schedule+0x63/0x110 Apr 20 21:12:49 Konnekt kernel: schedule_preempt_disabled+0x15/0x30 Apr 20 21:12:49 Konnekt kernel: __ww_mutex_lock.constprop.0+0x5cd/0xa70 Apr 20 21:12:49 Konnekt kernel: __ww_mutex_lock_slowpath+0x16/0x30 Apr 20 21:12:49 Konnekt kernel: ww_mutex_lock+0x86/0xa0 Apr 20 21:12:49 Konnekt kernel: drm_modeset_lock+0xb9/0xf0 [drm] Apr 20 21:12:49 Konnekt kernel: drm_crtc_get_sequence_ioctl+0x119/0x1f0 [drm] Apr 20 21:12:49 Konnekt kernel: ? __pfx_drm_crtc_get_sequence_ioctl+0x10/0x10 [drm] Apr 20 21:12:49 Konnekt kernel: drm_ioctl_kernel+0xde/0x190 [drm] Apr 20 21:12:49 Konnekt kernel: drm_ioctl+0x2d0/0x550 [drm] Apr 20 21:12:49 Konnekt kernel: ? __pfx_drm_crtc_get_sequence_ioctl+0x10/0x10 [drm] Apr 20 21:12:49 Konnekt kernel: nouveau_drm_ioctl+0x61/0xc0 [nouveau] Apr 20 21:12:49 Konnekt kernel: __x64_sys_ioctl+0xa3/0xf0 Apr 20 21:12:49 Konnekt kernel: do_syscall_64+0x5b/0x90 Apr 20 21:12:49 Konnekt kernel: ? sysvec_apic_timer_interrupt+0x4b/0xd0 Apr 20 21:12:49 Konnekt kernel: entry_SYSCALL_64_after_hwframe+0x6e/0xd8 Apr 20 21:12:49 Konnekt kernel: RIP: 0033:0x7e6249f1a94f Apr 20 21:12:49 Konnekt kernel: RSP: 002b:00007ffd9c760010 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 Apr 20 21:12:49 Konnekt kernel: RAX: ffffffffffffffda RBX: 00007ffd9c7600a0 RCX: 00007e6249f1a94f Apr 20 21:12:49 Konnekt kernel: RDX: 00007ffd9c7600a0 RSI: 00000000c018643b RDI: 0000000000000012 Apr 20 21:12:49 Konnekt kernel: RBP: 00000000c018643b R08: 000056595500f990 R09: 0000000000000000 Apr 20 21:12:49 Konnekt kernel: R10: 00000000000fa000 R11: 0000000000000246 R12: 00007ffd9c7601c8 Apr 20 21:12:49 Konnekt kernel: R13: 0000000000000012 R14: 000056595500ff70 R15: 00007ffd9c760100 Apr 20 21:12:49 Konnekt kernel: </TASK> Apr 20 21:14:50 Konnekt kernel: INFO: task kworker/u4:3:53 blocked for more than 483 seconds. Apr 20 21:14:50 Konnekt kernel: Tainted: P OE 6.5.0-28-generic #29~22.04.1-Ubuntu Apr 20 21:14:50 Konnekt kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Apr 20 21:14:50 Konnekt kernel: task:kworker/u4:3 state:D stack:0 pid:53 ppid:2 flags:0x00004000 Apr 20 21:14:50 Konnekt kernel: Workqueue: events_unbound nv50_disp_atomic_commit_work [nouveau] Apr 20 21:14:50 Konnekt kernel: Call Trace: Apr 20 21:14:50 Konnekt kernel: <TASK> Apr 20 21:14:50 Konnekt kernel: __schedule+0x2cb/0x750 Apr 20 21:14:50 Konnekt kernel: schedule+0x63/0x110 Apr 20 21:14:50 Konnekt kernel: schedule_timeout+0x157/0x170 Apr 20 21:14:50 Konnekt kernel: dma_fence_default_wait+0x13d/0x210 Apr 20 21:14:50 Konnekt kernel: ? __pfx_dma_fence_default_wait_cb+0x10/0x10 Apr 20 21:14:50 Konnekt kernel: dma_fence_wait_timeout+0x116/0x140 Apr 20 21:14:50 Konnekt kernel: drm_atomic_helper_wait_for_fences+0x172/0x200 [drm_kms_helper] Apr 20 21:14:50 Konnekt kernel: nv50_disp_atomic_commit_tail+0x86/0xaf0 [nouveau] Apr 20 21:14:50 Konnekt kernel: nv50_disp_atomic_commit_work+0x12/0x20 [nouveau] Apr 20 21:14:50 Konnekt kernel: process_one_work+0x240/0x450 Apr 20 21:14:50 Konnekt kernel: worker_thread+0x50/0x3f0 Apr 20 21:14:50 Konnekt kernel: ? __pfx_worker_thread+0x10/0x10 Apr 20 21:14:50 Konnekt kernel: kthread+0xf2/0x120 Apr 20 21:14:50 Konnekt kernel: ? __pfx_kthread+0x10/0x10 Apr 20 21:14:50 Konnekt kernel: ret_from_fork+0x47/0x70 Apr 20 21:14:50 Konnekt kernel: ? __pfx_kthread+0x10/0x10 Apr 20 21:14:50 Konnekt kernel: ret_from_fork_asm+0x1b/0x30 Apr 20 21:14:50 Konnekt kernel: </TASK> Apr 20 21:14:50 Konnekt kernel: INFO: task Xorg:847 blocked for more than 362 seconds. Apr 20 21:14:50 Konnekt kernel: Tainted: P OE 6.5.0-28-generic #29~22.04.1-Ubuntu Apr 20 21:14:50 Konnekt kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Apr 20 21:14:50 Konnekt kernel: task:Xorg state:D stack:0 pid:847 ppid:781 flags:0x00400006 Apr 20 21:14:50 Konnekt kernel: Call Trace: Apr 20 21:14:50 Konnekt kernel: <TASK> Apr 20 21:14:50 Konnekt kernel: __schedule+0x2cb/0x750 Apr 20 21:14:50 Konnekt kernel: schedule+0x63/0x110 Apr 20 21:14:50 Konnekt kernel: schedule_preempt_disabled+0x15/0x30 Apr 20 21:14:50 Konnekt kernel: __ww_mutex_lock.constprop.0+0x5cd/0xa70 Apr 20 21:14:50 Konnekt kernel: __ww_mutex_lock_slowpath+0x16/0x30 Apr 20 21:14:50 Konnekt kernel: ww_mutex_lock+0x86/0xa0 Apr 20 21:14:50 Konnekt kernel: drm_modeset_lock+0xb9/0xf0 [drm] Apr 20 21:14:50 Konnekt kernel: drm_crtc_get_sequence_ioctl+0x119/0x1f0 [drm] Apr 20 21:14:50 Konnekt kernel: ? __pfx_drm_crtc_get_sequence_ioctl+0x10/0x10 [drm] Apr 20 21:14:50 Konnekt kernel: drm_ioctl_kernel+0xde/0x190 [drm] Apr 20 21:14:50 Konnekt kernel: drm_ioctl+0x2d0/0x550 [drm] Apr 20 21:14:50 Konnekt kernel: ? __pfx_drm_crtc_get_sequence_ioctl+0x10/0x10 [drm] Apr 20 21:14:50 Konnekt kernel: nouveau_drm_ioctl+0x61/0xc0 [nouveau] Apr 20 21:14:50 Konnekt kernel: __x64_sys_ioctl+0xa3/0xf0 Apr 20 21:14:50 Konnekt kernel: do_syscall_64+0x5b/0x90 Apr 20 21:14:50 Konnekt kernel: ? sysvec_apic_timer_interrupt+0x4b/0xd0 Apr 20 21:14:50 Konnekt kernel: entry_SYSCALL_64_after_hwframe+0x6e/0xd8 Apr 20 21:14:50 Konnekt kernel: RIP: 0033:0x7e6249f1a94f Apr 20 21:14:50 Konnekt kernel: RSP: 002b:00007ffd9c760010 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 Apr 20 21:14:50 Konnekt kernel: RAX: ffffffffffffffda RBX: 00007ffd9c7600a0 RCX: 00007e6249f1a94f Apr 20 21:14:50 Konnekt kernel: RDX: 00007ffd9c7600a0 RSI: 00000000c018643b RDI: 0000000000000012 Apr 20 21:14:50 Konnekt kernel: RBP: 00000000c018643b R08: 000056595500f990 R09: 0000000000000000 Apr 20 21:14:50 Konnekt kernel: R10: 00000000000fa000 R11: 0000000000000246 R12: 00007ffd9c7601c8 Apr 20 21:14:50 Konnekt kernel: R13: 0000000000000012 R14: 000056595500ff70 R15: 00007ffd9c760100 Apr 20 21:14:50 Konnekt kernel: </TASK> -- 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/1788044 Title: task kworker blocked for more than 120 seconds nouveau Status in linux package in Ubuntu: Incomplete Status in xserver-xorg-video-nouveau package in Ubuntu: Confirmed Bug description: I was using chromium when the whole system GUI stopped responding at 15:42. This corresponds to the system journal at that point: Aug 20 15:42:56 dh3930 kernel: nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT] Aug 20 15:42:56 dh3930 kernel: nouveau 0000:01:00.0: fifo: runlist 0: scheduled for recovery Aug 20 15:42:56 dh3930 kernel: nouveau 0000:01:00.0: fifo: channel 15: killed Aug 20 15:42:56 dh3930 kernel: nouveau 0000:01:00.0: fifo: engine 0: scheduled for recovery Aug 20 15:42:56 dh3930 kernel: nouveau 0000:01:00.0: compiz[7682]: channel 15 killed! Aug 20 15:45:50 dh3930 kernel: INFO: task kworker/u24:4:14623 blocked for more than 120 seconds. Aug 20 15:45:50 dh3930 kernel: Not tainted 4.15.0-32-generic #35-Ubuntu Aug 20 15:45:50 dh3930 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Aug 20 15:45:50 dh3930 kernel: kworker/u24:4 D 0 14623 2 0x80000000 Aug 20 15:45:50 dh3930 kernel: Workqueue: events_unbound nv50_disp_atomic_commit_work [nouveau] Aug 20 15:45:50 dh3930 kernel: Call Trace: Aug 20 15:45:50 dh3930 kernel: __schedule+0x291/0x8a0 Aug 20 15:45:50 dh3930 kernel: schedule+0x2c/0x80 Aug 20 15:45:50 dh3930 kernel: schedule_timeout+0x1cf/0x350 Aug 20 15:45:50 dh3930 kernel: ? nvif_object_ioctl+0x47/0x50 [nouveau] Aug 20 15:45:50 dh3930 kernel: ? nouveau_bo_rd32+0x2a/0x30 [nouveau] Aug 20 15:45:50 dh3930 kernel: ? nv84_fence_read+0x2e/0x30 [nouveau] Aug 20 15:45:50 dh3930 kernel: ? nouveau_fence_no_signaling+0x2a/0x80 [nouveau] Aug 20 15:45:50 dh3930 kernel: dma_fence_default_wait+0x1c7/0x260 Aug 20 15:45:50 dh3930 kernel: ? dma_fence_release+0xa0/0xa0 Aug 20 15:45:50 dh3930 kernel: dma_fence_wait_timeout+0x3e/0xf0 Aug 20 15:45:50 dh3930 kernel: drm_atomic_helper_wait_for_fences+0x63/0xc0 [drm_kms_helper] Aug 20 15:45:50 dh3930 kernel: nv50_disp_atomic_commit_tail+0x55/0x3b10 [nouveau] Aug 20 15:45:50 dh3930 kernel: nv50_disp_atomic_commit_work+0x12/0x20 [nouveau] Aug 20 15:45:50 dh3930 kernel: process_one_work+0x1de/0x410 Aug 20 15:45:50 dh3930 kernel: worker_thread+0x32/0x410 Aug 20 15:45:50 dh3930 kernel: kthread+0x121/0x140 Aug 20 15:45:50 dh3930 kernel: ? process_one_work+0x410/0x410 Aug 20 15:45:50 dh3930 kernel: ? kthread_create_worker_on_cpu+0x70/0x70 Aug 20 15:45:50 dh3930 kernel: ret_from_fork+0x35/0x40 The 'blocked for more than 120 seconds' message and call trace repeated every ~121 seconds until I rebooted. At that point, the following additional line appeared with the 'blocked for more than 120 seconds' message: Aug 20 16:01:51 dh3930 kernel: nouveau 0000:01:00.0: chromium- browse[14187]: failed to idle channel 20 [chromium-browse[14187]] ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-32-generic 4.15.0-32.35 ProcVersionSignature: Ubuntu 4.15.0-32.35-generic 4.15.18 Uname: Linux 4.15.0-32-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: david 2460 F.... pulseaudio /dev/snd/controlC0: david 2460 F.... pulseaudio CurrentDesktop: Unity:Unity7:ubuntu Date: Mon Aug 20 16:07:40 2018 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=9e4f3d6a-f1b3-40c0-8c97-97d861a7ce11 InstallationDate: Installed on 2016-10-24 (664 days ago) InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2) MachineType: System manufacturer System Product Name ProcFB: 0 nouveaufb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.15.0-32-generic root=UUID=311cc681-166d-47bd-847d-f41c81578c1a ro rootflags=subvol=@ quiet splash vt.handoff=1 RelatedPackageVersions: linux-restricted-modules-4.15.0-32-generic N/A linux-backports-modules-4.15.0-32-generic N/A linux-firmware 1.173.1 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to bionic on 2018-05-01 (110 days ago) dmi.bios.date: 05/06/2014 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 4701 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: P9X79 dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev 1.xx dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr4701:bd05/06/2014:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnP9X79:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.family: To be filled by O.E.M. dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1788044/+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
