# Pastebin 28UTf0w2 [ 737.910576] INFO: task Profile Saver:9066 blocked for more than 122 seconds. [ 737.910581] Not tainted 5.4.181 #1 [ 737.910586] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 737.910591] Profile Saver D 0 9066 4069 0x00000a2c [ 737.910598] Call trace: [ 737.910605] __switch_to+0xd0/0x168 [ 737.910614] __schedule+0x4c4/0x978 [ 737.910621] schedule+0x54/0xe0 [ 737.910629] schedule_preempt_disabled+0x24/0x3c [ 737.910637] __mutex_lock_common+0x250/0x39c [ 737.910645] __mutex_lock_slowpath+0x40/0x4c [ 737.910652] mutex_lock+0x60/0x70 [ 737.910657] drm_release+0x30/0xd8 [ 737.910662] __fput+0xe0/0x2dc [ 737.910670] ____fput+0x1c/0x28 [ 737.910677] task_work_run+0x9c/0xf8 [ 737.910684] do_exit+0x194/0x818 [ 737.910691] do_group_exit+0x94/0x98 [ 737.910696] get_signal+0x114/0x490 [ 737.910703] do_notify_resume+0x110/0x384 [ 737.910709] work_pending+0x8/0x10 [ 737.910716] task PC stack pid father [ 737.910787] kworker/u16:3 D 0 175 2 0x00000028 [ 737.910799] Workqueue: events_unbound commit_work [ 737.910804] Call trace: [ 737.910811] __switch_to+0xd0/0x168 [ 737.910819] __schedule+0x4c4/0x978 [ 737.910827] schedule+0x54/0xe0 [ 737.910835] schedule_timeout+0x10c/0x1fc [ 737.910842] dma_fence_default_wait+0x108/0x1e8 [ 737.910848] dma_fence_wait_timeout+0x5c/0x190 [ 737.910856] drm_atomic_helper_wait_for_fences+0x6c/0xd8 [ 737.910864] commit_tail+0x34/0x108 [ 737.910871] commit_work+0x1c/0x28 [ 737.910879] process_one_work+0x138/0x408 [ 737.910887] worker_thread+0x160/0x460 [ 737.910903] kthread+0x140/0x158 [ 737.910910] ret_from_fork+0x10/0x18 [ 737.911061] ThreadPoolForeg D 0 1736 1627 0x00400a2c [ 737.911069] Call trace: [ 737.911076] __switch_to+0xd0/0x168 [ 737.911084] __schedule+0x4c4/0x978 [ 737.911091] schedule+0x54/0xe0 [ 737.911099] schedule_timeout+0x10c/0x1fc [ 737.911107] do_wait_for_common+0x138/0x188 [ 737.911115] wait_for_completion+0x4c/0x60 [ 737.911122] __flush_work+0xe0/0x1bc [ 737.911130] flush_work+0x1c/0x2c [ 737.911138] drm_fb_release+0x114/0x144 [ 737.911146] drm_file_free+0x160/0x21c [ 737.911152] drm_release+0x98/0xd8 [ 737.911158] __fput+0xe0/0x2dc [ 737.911166] ____fput+0x1c/0x28 [ 737.911173] task_work_run+0x9c/0xf8 [ 737.911180] do_exit+0x194/0x818 [ 737.911187] do_group_exit+0x94/0x98 [ 737.911193] get_signal+0x114/0x490 [ 737.911201] do_notify_resume+0x110/0x384 [ 737.911207] work_pending+0x8/0x10 [ 737.912071] Profile Saver D 0 9066 4069 0x00000a2c [ 737.912079] Call trace: [ 737.912086] __switch_to+0xd0/0x168 [ 737.912095] __schedule+0x4c4/0x978 [ 737.912102] schedule+0x54/0xe0 [ 737.912110] schedule_preempt_disabled+0x24/0x3c [ 737.912118] __mutex_lock_common+0x250/0x39c [ 737.912126] __mutex_lock_slowpath+0x40/0x4c [ 737.912133] mutex_lock+0x60/0x70 [ 737.912139] drm_release+0x30/0xd8 [ 737.912144] __fput+0xe0/0x2dc [ 737.912152] ____fput+0x1c/0x28 [ 737.912159] task_work_run+0x9c/0xf8 [ 737.912166] do_exit+0x194/0x818 [ 737.912173] do_group_exit+0x94/0x98 [ 737.912179] get_signal+0x114/0x490 [ 737.912188] do_notify_resume+0x110/0x384 [ 737.912193] work_pending+0x8/0x10 [ 737.912206] Kernel panic - not syncing: hung_task: blocked tasks [ 737.912215] CPU: 7 PID: 54 Comm: khungtaskd Not tainted 5.4.181 #1 [ 737.912221] Hardware name: Google Homestar (rev2) (DT) [ 737.912225] Call trace: [ 737.912233] dump_backtrace+0x0/0x14c [ 737.912241] show_stack+0x20/0x2c [ 737.912250] dump_stack+0xac/0x124 [ 737.912257] panic+0x150/0x390 [ 737.912266] hung_task_panic+0x0/0x24 [ 737.912274] kthread+0x140/0x158 [ 737.912281] ret_from_fork+0x10/0x18 [ 737.912295] SMP: stopping secondary CPUs [ 737.912453] Kernel Offset: 0x1228a00000 from 0xffffffc010000000 [ 737.912458] PHYS_OFFSET: 0xffffffcd80000000 [ 737.912466] CPU features: 0x88102e,2a80aa38 [ 737.912472] Memory Limit: none [ 737.929155] ---[ end Kernel panic - not syncing: hung_task: blocked tasks ]---