rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 0-...!: (8 ticks this GP) idle=e8d4/1/0x4000000000000000 softirq=69312/69313 fqs=1 rcu: (detected by 1, t=12136 jiffies, g=51505, q=237 ncpus=2) Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 6750 Comm: kworker/0:5 Not tainted syzkaller #0 PREEMPT(voluntary) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 Workqueue: events drain_vmap_area_work RIP: 0010:io_serial_out+0x8f/0xb0 drivers/tty/serial/8250/8250_port.c:407 Code: 48 8d 7d 40 44 89 e1 48 b8 00 00 00 00 00 fc ff df 48 89 fa d3 e3 48 c1 ea 03 80 3c 02 00 75 1c 66 03 5d 40 44 89 e8 89 da ee <5b> 5d 41 5c 41 5d e9 86 9c 69 04 e8 f1 c4 00 ff eb a0 e8 7a c5 00 RSP: 0018:ffffc900000073a8 EFLAGS: 00000002 RAX: 0000000000000035 RBX: 00000000000003f8 RCX: 0000000000000000 RDX: 00000000000003f8 RSI: ffffffff82ddc225 RDI: ffffffff93bdc700 RBP: ffffffff93bdc6c0 R08: 0000000000000001 R09: 000000000000001f R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000035 R14: ffffffff93bdc6c0 R15: ffffffff82ddc1c0 FS: 0000000000000000(0000) GS:ffff888268ea0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff9e905ed58 CR3: 00000000090a4000 CR4: 00000000003506f0 Call Trace: serial_port_out include/linux/serial_core.h:811 [inline] serial8250_console_putchar drivers/tty/serial/8250/8250_port.c:3192 [inline] serial8250_console_fifo_write drivers/tty/serial/8250/8250_port.c:3264 [inline] serial8250_console_write+0xfbd/0x1890 drivers/tty/serial/8250/8250_port.c:3342 console_emit_next_record kernel/printk/printk.c:3111 [inline] console_flush_all+0x801/0xc60 kernel/printk/printk.c:3199 __console_flush_and_unlock kernel/printk/printk.c:3258 [inline] console_unlock+0xd8/0x210 kernel/printk/printk.c:3298 vprintk_emit+0x3d7/0x680 kernel/printk/printk.c:2423 _printk+0xc7/0x100 kernel/printk/printk.c:2448 printk_stack_address arch/x86/kernel/dumpstack.c:70 [inline] show_trace_log_lvl+0x1b5/0x3e0 arch/x86/kernel/dumpstack.c:282 sched_show_task kernel/sched/core.c:7901 [inline] sched_show_task+0x423/0x630 kernel/sched/core.c:7876 show_state_filter+0xee/0x380 kernel/sched/core.c:7946 k_spec drivers/tty/vt/keyboard.c:666 [inline] k_spec+0xf0/0x150 drivers/tty/vt/keyboard.c:655 kbd_keycode drivers/tty/vt/keyboard.c:1515 [inline] kbd_event+0xcd2/0x1820 drivers/tty/vt/keyboard.c:1534 input_handle_events_default+0x119/0x1b0 drivers/input/input.c:2541 input_pass_values+0x74e/0x880 drivers/input/input.c:128 input_event_dispose drivers/input/input.c:342 [inline] input_handle_event+0xf00/0x14d0 drivers/input/input.c:370 input_repeat_key+0x27b/0x370 drivers/input/input.c:2228 call_timer_fn+0x19a/0x620 kernel/time/timer.c:1747 expire_timers kernel/time/timer.c:1798 [inline] __run_timers+0x6ef/0x960 kernel/time/timer.c:2372 __run_timer_base kernel/time/timer.c:2384 [inline] __run_timer_base kernel/time/timer.c:2376 [inline] run_timer_base+0x114/0x190 kernel/time/timer.c:2393 run_timer_softirq+0x1a/0x40 kernel/time/timer.c:2403 handle_softirqs+0x208/0x8d0 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xfa/0x160 kernel/softirq.c:723 irq_exit_rcu+0x9/0x30 kernel/softirq.c:739 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1052 [inline] sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1052 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:lock_acquire+0x62/0x350 kernel/locking/lockdep.c:5872 Code: 52 3d 0b 83 f8 07 0f 87 bc 02 00 00 89 c0 48 0f a3 05 42 3e 46 09 0f 82 74 02 00 00 8b 35 ba 4a 46 09 85 f6 0f 85 8d 00 00 00 <48> 8b 44 24 30 65 48 2b 05 59 52 3d 0b 0f 85 c7 02 00 00 48 83 c4 RSP: 0018:ffffc900021ff558 EFLAGS: 00000206 RAX: 0000000000000046 RBX: ffffffff892c89e0 RCX: 00000000143c53c4 RDX: 0000000000000000 RSI: ffffffff88c684b8 RDI: ffffffff878979c0 RBP: 0000000000000002 R08: 611544f9281abef2 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 rcu_lock_acquire include/linux/rcupdate.h:331 [inline] rcu_read_lock include/linux/rcupdate.h:867 [inline] class_rcu_constructor include/linux/rcupdate.h:1195 [inline] unwind_next_frame+0xd1/0x20a0 arch/x86/kernel/unwind_orc.c:479 __unwind_start+0x45f/0x7f0 arch/x86/kernel/unwind_orc.c:758 unwind_start arch/x86/include/asm/unwind.h:64 [inline] arch_stack_walk+0x73/0x100 arch/x86/kernel/stacktrace.c:24 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122 save_stack+0x160/0x1f0 mm/page_owner.c:156 __reset_page_owner+0x84/0x1a0 mm/page_owner.c:311 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0x78f/0x1000 mm/page_alloc.c:2906 kasan_depopulate_vmalloc_pte+0x5b/0x80 mm/kasan/shadow.c:495 apply_to_pte_range mm/memory.c:3142 [inline] apply_to_pmd_range mm/memory.c:3186 [inline] apply_to_pud_range mm/memory.c:3222 [inline] apply_to_p4d_range mm/memory.c:3258 [inline] __apply_to_page_range+0xac1/0x13f0 mm/memory.c:3294 kasan_release_vmalloc+0xd1/0xe0 mm/kasan/shadow.c:616 kasan_release_vmalloc_node mm/vmalloc.c:2255 [inline] purge_vmap_node+0x1c4/0xa30 mm/vmalloc.c:2272 __purge_vmap_area_lazy+0xa06/0xc60 mm/vmalloc.c:2362 drain_vmap_area_work+0x27/0x40 mm/vmalloc.c:2396 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3263 process_scheduled_works kernel/workqueue.c:3346 [inline] worker_thread+0x6c8/0xf10 kernel/workqueue.c:3427 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 rcu: rcu_preempt kthread starved for 2382 jiffies! g51505 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. rcu: RCU grace-period kthread stack dump: task:rcu_preempt state:R running task __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 stack:29032 pid:15 tgid:15 ppid:2 task_flags:0x208040 flags:0x00080000 schedule_hrtimeout_range_clock+0x2dc/0x320 kernel/time/sleep_timeout.c:207 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 do_sigtimedwait+0x437/0x5e0 kernel/signal.c:3782 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 schedule_timeout+0x123/0x290 kernel/time/sleep_timeout.c:99 __do_sys_rt_sigtimedwait kernel/signal.c:3826 [inline] __se_sys_rt_sigtimedwait kernel/signal.c:3804 [inline] __x64_sys_rt_sigtimedwait+0x1ed/0x2f0 kernel/signal.c:3804 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4d0 arch/x86/entry/syscall_64.c:94 rcu_gp_fqs_loop+0x1ea/0xaf0 kernel/rcu/tree.c:2083 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7efcf9c90407 RSP: 002b:00007fffa697a9e0 EFLAGS: 00000202 ORIG_RAX: 0000000000000080 RAX: ffffffffffffffda RBX: 00007efcf9b40c80 RCX: 00007efcf9c90407 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007efcf9eaa498 rcu_gp_kthread+0x26d/0x380 kernel/rcu/tree.c:2285 RBP: 00007efcf9eaa490 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000008 R11: 0000000000000202 R12: 00007efcf9eaa490 R13: 00007fffa697aa5c R14: 00007efcf9eea000 R15: 000056357b26ed98 task:kthreadd state:S stack:26872 pid:2 tgid:2 ppid:0 task_flags:0x208040 flags:0x00080000 kthread+0x3c5/0x780 kernel/kthread.c:463 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rcu: Stack dump where RCU GP kthread last ran: kthreadd+0x5f3/0x800 kernel/kthread.c:834 CPU: 1 UID: 0 PID: 32 Comm: kworker/u8:1 Not tainted syzkaller #0 PREEMPT(voluntary) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 Workqueue: writeback wb_workfn (flush-8:0) ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0x31/0x80 kernel/locking/spinlock.c:194 Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 c6 94 13 fa 48 89 df e8 ae e8 13 fa f7 c5 00 02 00 00 75 23 9c 58 f6 c4 02 75 37 01 00 00 00 e8 e5 5f 07 fa 65 8b 05 3e ee 50 05 85 c0 74 16 5b task:pool_workqueue_ state:S RSP: 0018:ffffc900001a8c10 EFLAGS: 00000246 stack:30632 pid:3 tgid:3 ppid:2 task_flags:0x208040 flags:0x00080000 RAX: 0000000000000006 RBX: ffff888117296218 RCX: 0000000000000002 Call Trace: RDX: 0000000000000000 RSI: ffffffff88c88a08 RDI: ffffffff878979c0 RBP: 0000000000000246 R08: 0000000000000001 R09: 0000000000000001 context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 R10: ffffffff8aa0ebd7 R11: ffffffff93ae3fc0 R12: 0000000000000246 R13: 0000000000000021 R14: ffff888117296108 R15: ffff888117296000 FS: 0000000000000000(0000) GS:ffff888268fa0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 CR2: 00007f019d0882c0 CR3: 0000000138352000 CR4: 00000000003506f0 kthread_worker_fn+0x516/0xc50 kernel/kthread.c:1017 Call Trace: spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] class_spinlock_irqsave_destructor include/linux/spinlock.h:585 [inline] input_repeat_key+0xf6/0x370 drivers/input/input.c:2220 kthread+0x3c5/0x780 kernel/kthread.c:463 call_timer_fn+0x19a/0x620 kernel/time/timer.c:1747 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 expire_timers kernel/time/timer.c:1798 [inline] __run_timers+0x6ef/0x960 kernel/time/timer.c:2372 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 __run_timer_base kernel/time/timer.c:2384 [inline] __run_timer_base kernel/time/timer.c:2376 [inline] run_timer_base+0x114/0x190 kernel/time/timer.c:2393 task:kworker/R-rcu_g state:I run_timer_softirq+0x1a/0x40 kernel/time/timer.c:2403 stack:30440 pid:4 tgid:4 ppid:2 task_flags:0x4208060 flags:0x00080000 handle_softirqs+0x208/0x8d0 kernel/softirq.c:622 Call Trace: __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xfa/0x160 kernel/softirq.c:723 context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 irq_exit_rcu+0x9/0x30 kernel/softirq.c:739 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1052 [inline] sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1052 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 RIP: 0010:native_pause arch/x86/include/asm/vdso/processor.h:13 [inline] RIP: 0010:cpu_relax arch/x86/include/asm/vdso/processor.h:18 [inline] RIP: 0010:csd_lock_wait kernel/smp.c:342 [inline] RIP: 0010:smp_call_function_many_cond+0xdf6/0x1600 kernel/smp.c:877 rescuer_thread+0x987/0xea0 kernel/workqueue.c:3577 Code: a0 e3 0b 00 85 ed 74 57 48 8b 54 24 10 4c 89 74 24 10 49 89 d5 48 89 d5 48 89 54 24 18 49 c1 ed 03 83 e5 07 4d 01 e5 83 c5 03 35 e8 0b 00 f3 90 41 0f b6 45 00 40 38 c5 7c 08 84 c0 0f 85 e0 RSP: 0018:ffffc90000226870 EFLAGS: 00000202 RAX: 0000000000000000 RBX: ffff8881f58402c0 RCX: ffffffff81726651 RDX: ffff888105681d00 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 R13: ffffed103eb08059 R14: 0000000000000001 R15: 0000000000000000 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1043 __flush_tlb_multi arch/x86/include/asm/paravirt.h:91 [inline] flush_tlb_multi arch/x86/mm/tlb.c:1381 [inline] flush_tlb_mm_range+0x4a0/0x17a0 arch/x86/mm/tlb.c:1471 task:kworker/R-sync_ state:I stack:31176 pid:5 tgid:5 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 flush_tlb_page arch/x86/include/asm/tlbflush.h:324 [inline] ptep_clear_flush+0x136/0x180 mm/pgtable-generic.c:101 page_vma_mkclean_one.constprop.0+0x3a7/0x660 mm/rmap.c:1041 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 page_mkclean_one+0x194/0x250 mm/rmap.c:1082 rescuer_thread+0x987/0xea0 kernel/workqueue.c:3577 __rmap_walk_file+0x357/0x620 mm/rmap.c:2918 rmap_walk_file+0x170/0x1f0 mm/rmap.c:2951 rmap_walk mm/rmap.c:2962 [inline] folio_mkclean+0x227/0x3a0 mm/rmap.c:1114 kthread+0x3c5/0x780 kernel/kthread.c:463 folio_clear_dirty_for_io+0x153/0x760 mm/page-writeback.c:2938 mpage_submit_folio+0x84/0x240 fs/ext4/inode.c:2061 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 mpage_process_page_bufs+0x42f/0x860 fs/ext4/inode.c:2191 mpage_prepare_extent_to_map+0x790/0x1450 fs/ext4/inode.c:2736 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-kvfre state:I ext4_do_writepages+0xd83/0x40d0 fs/ext4/inode.c:2877 stack:31176 pid:6 tgid:6 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 ext4_writepages+0x37a/0x7d0 fs/ext4/inode.c:3025 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rescuer_thread+0x987/0xea0 kernel/workqueue.c:3577 do_writepages+0x27a/0x600 mm/page-writeback.c:2604 __writeback_single_inode+0x160/0xfb0 fs/fs-writeback.c:1719 writeback_sb_inodes+0x60d/0xfa0 fs/fs-writeback.c:2015 kthread+0x3c5/0x780 kernel/kthread.c:463 __writeback_inodes_wb+0xf8/0x2d0 fs/fs-writeback.c:2086 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 wb_writeback+0x7f3/0xb70 fs/fs-writeback.c:2197 task:kworker/R-slub_ state:I stack:31176 pid:7 tgid:7 ppid:2 task_flags:0x4208060 flags:0x00080000 wb_check_old_data_flush fs/fs-writeback.c:2301 [inline] wb_do_writeback fs/fs-writeback.c:2354 [inline] wb_workfn+0x8ca/0xbe0 fs/fs-writeback.c:2382 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3263 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rescuer_thread+0x987/0xea0 kernel/workqueue.c:3577 process_scheduled_works kernel/workqueue.c:3346 [inline] worker_thread+0x6c8/0xf10 kernel/workqueue.c:3427 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-netns state:I stack:31176 pid:8 tgid:8 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rescuer_thread+0x987/0xea0 kernel/workqueue.c:3577 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/0:0 state:I stack:29672 pid:9 tgid:9 ppid:2 task_flags:0x4208060 flags:0x00080000 Workqueue: 0x0 (events) Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3442 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/0:1 state:S stack:23032 pid:10 tgid:10 ppid:2 task_flags:0x4208060 flags:0x00080000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7083 __mutex_lock_common kernel/locking/mutex.c:676 [inline] __mutex_lock+0x818/0x1060 kernel/locking/mutex.c:760 class_mutex_intr_constructor include/linux/mutex.h:230 [inline] input_register_device+0x992/0x1180 drivers/input/input.c:2374 hidinput_connect+0x1dd0/0x2bd0 drivers/hid/hid-input.c:2354 hid_connect+0x13f3/0x1a60 drivers/hid/hid-core.c:2261 hid_hw_start drivers/hid/hid-core.c:2379 [inline] hid_hw_start+0xaa/0x140 drivers/hid/hid-core.c:2370 __hid_device_probe drivers/hid/hid-core.c:2779 [inline] hid_device_probe+0x760/0x8d0 drivers/hid/hid-core.c:2812 call_driver_probe drivers/base/dd.c:581 [inline] really_probe+0x241/0xa90 drivers/base/dd.c:659 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:801 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:831 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:959 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:462 __device_attach+0x1e4/0x4b0 drivers/base/dd.c:1031 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:537 device_add+0x1148/0x1aa0 drivers/base/core.c:3689 hid_add_device+0x31b/0x5c0 drivers/hid/hid-core.c:2951 usbhid_probe+0xd38/0x13f0 drivers/hid/usbhid/hid-core.c:1435 usb_probe_interface+0x303/0xa40 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:581 [inline] really_probe+0x241/0xa90 drivers/base/dd.c:659 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:801 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:831 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:959 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:462 __device_attach+0x1e4/0x4b0 drivers/base/dd.c:1031 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:537 device_add+0x1148/0x1aa0 drivers/base/core.c:3689 usb_set_configuration+0x1187/0x1e20 drivers/usb/core/message.c:2210 usb_generic_driver_probe+0xb1/0x110 drivers/usb/core/generic.c:250 usb_probe_device+0xef/0x3e0 drivers/usb/core/driver.c:291 call_driver_probe drivers/base/dd.c:581 [inline] really_probe+0x241/0xa90 drivers/base/dd.c:659 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:801 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:831 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:959 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:462 __device_attach+0x1e4/0x4b0 drivers/base/dd.c:1031 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:537 device_add+0x1148/0x1aa0 drivers/base/core.c:3689 usb_new_device+0xd07/0x1a60 drivers/usb/core/hub.c:2695 hub_port_connect drivers/usb/core/hub.c:5567 [inline] hub_port_connect_change drivers/usb/core/hub.c:5707 [inline] port_event drivers/usb/core/hub.c:5871 [inline] hub_event+0x2fce/0x5060 drivers/usb/core/hub.c:5953 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3263 process_scheduled_works kernel/workqueue.c:3346 [inline] worker_thread+0x6c8/0xf10 kernel/workqueue.c:3427 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/0:0H state:I stack:29368 pid:11 tgid:11 ppid:2 task_flags:0x4208060 flags:0x00080000 Workqueue: 0x0 (events_highpri) Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3442 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/u8:0 state:I stack:25976 pid:12 tgid:12 ppid:2 task_flags:0x4208060 flags:0x00080000 Workqueue: 0x0 (events_unbound) Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3442 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-mm_pe state:I stack:31176 pid:13 tgid:13 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rescuer_thread+0x987/0xea0 kernel/workqueue.c:3577 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:ksoftirqd/0 state:R running task stack:26616 pid:14 tgid:14 ppid:2 task_flags:0x4208040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 smpboot_thread_fn+0x8e6/0xae0 kernel/smpboot.c:156 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:rcu_preempt state:R running task stack:29032 pid:15 tgid:15 ppid:2 task_flags:0x208040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 schedule_timeout+0x123/0x290 kernel/time/sleep_timeout.c:99 rcu_gp_fqs_loop+0x1ea/0xaf0 kernel/rcu/tree.c:2083 rcu_gp_kthread+0x26d/0x380 kernel/rcu/tree.c:2285 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:rcu_exp_par_gp_ state:S stack:31376 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 kthread_worker_fn+0x516/0xc50 kernel/kthread.c:1017 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:rcu_exp_gp_kthr state:S stack:29352 pid:17 tgid:17 ppid:2 task_flags:0x208040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 kthread_worker_fn+0x516/0xc50 kernel/kthread.c:1017 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:migration/0 state:R running task stack:30648 pid:18 tgid:18 ppid:2 task_flags:0x4208040 flags:0x00080000 Stopper: 0x0 <- 0x0 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 smpboot_thread_fn+0x8e6/0xae0 kernel/smpboot.c:156 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:cpuhp/0 state:S stack:26888 pid:19 tgid:19 ppid:2 task_flags:0x4208040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 smpboot_thread_fn+0x8e6/0xae0 kernel/smpboot.c:156 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:cpuhp/1 state:S stack:26920 pid:20 tgid:20 ppid:2 task_flags:0x4208040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 smpboot_thread_fn+0x8e6/0xae0 kernel/smpboot.c:156 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:migration/1 state:R running task stack:30040 pid:21 tgid:21 ppid:2 task_flags:0x4208040 flags:0x00080000 Stopper: 0x0 <- 0x0 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 smpboot_thread_fn+0x8e6/0xae0 kernel/smpboot.c:156 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:ksoftirqd/1 state:R running task stack:23832 pid:22 tgid:22 ppid:2 task_flags:0x4208040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 smpboot_thread_fn+0x8e6/0xae0 kernel/smpboot.c:156 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/1:0 state:I stack:29672 pid:23 tgid:23 ppid:2 task_flags:0x4208060 flags:0x00080000 Workqueue: 0x0 (mm_percpu_wq) Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3442 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/1:0H state:R running task stack:27960 pid:24 tgid:24 ppid:2 task_flags:0x4208060 flags:0x00080000 Workqueue: 0x0 (kblockd) Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3442 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kdevtmpfs state:S stack:24792 pid:25 tgid:25 ppid:2 task_flags:0x208140 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 devtmpfs_work_loop+0xb36/0xce0 drivers/base/devtmpfs.c:409 devtmpfsd+0x4c/0x50 drivers/base/devtmpfs.c:442 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-inet_ state:I stack:30888 pid:26 tgid:26 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rescuer_thread+0x987/0xea0 kernel/workqueue.c:3577 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:rcu_tasks_kthre state:I stack:29312 pid:27 tgid:27 ppid:2 task_flags:0x208040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rcu_tasks_one_gp+0x55d/0xe20 kernel/rcu/tasks.h:611 rcu_tasks_kthread+0x1c5/0x250 kernel/rcu/tasks.h:658 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:rcu_tasks_trace state:I stack:29232 pid:28 tgid:28 ppid:2 task_flags:0x208040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rcu_tasks_one_gp+0x55d/0xe20 kernel/rcu/tasks.h:611 rcu_tasks_kthread+0x1c5/0x250 kernel/rcu/tasks.h:658 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kauditd state:S stack:29456 pid:29 tgid:29 ppid:2 task_flags:0x200040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 kauditd_thread+0x4d9/0xa70 kernel/audit.c:948 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:khungtaskd state:S stack:30248 pid:30 tgid:30 ppid:2 task_flags:0x208040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 schedule_timeout+0x123/0x290 kernel/time/sleep_timeout.c:99 watchdog+0x12c/0x1170 kernel/hung_task.c:499 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:oom_reaper state:S stack:29776 pid:31 tgid:31 ppid:2 task_flags:0x200040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 oom_reaper+0x9a3/0xb50 mm/oom_kill.c:656 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/u8:1 state:R running task stack:23640 pid:32 tgid:32 ppid:2 task_flags:0x4248160 flags:0x00080010 Workqueue: writeback wb_workfn (flush-8:0) Call Trace: task:kworker/R-write state:I stack:30008 pid:33 tgid:33 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rescuer_thread+0x987/0xea0 kernel/workqueue.c:3577 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kcompactd0 state:S stack:29208 pid:34 tgid:34 ppid:2 task_flags:0x210040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 schedule_timeout+0x123/0x290 kernel/time/sleep_timeout.c:99 kcompactd+0x9e7/0xe00 mm/compaction.c:3187 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-kbloc state:I stack:31176 pid:35 tgid:35 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rescuer_thread+0x987/0xea0 kernel/workqueue.c:3577 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:irq/9-acpi state:S stack:30792 pid:36 tgid:36 ppid:2 task_flags:0x208040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 irq_wait_for_interrupt kernel/irq/manage.c:1065 [inline] irq_thread+0x1ac/0x790 kernel/irq/manage.c:1253 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/1:1 state:I stack:22424 pid:37 tgid:37 ppid:2 task_flags:0x4208060 flags:0x00080000 Workqueue: 0x0 (events) Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3442 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/u8:2 state:I stack:24984 pid:38 tgid:38 ppid:2 task_flags:0x4208060 flags:0x00080000 Workqueue: 0x0 (events_unbound) Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3442 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-ata_s state:I stack:31176 pid:39 tgid:39 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rescuer_thread+0x987/0xea0 kernel/workqueue.c:3577 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-md_bi state:I stack:29712 pid:40 tgid:40 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rescuer_thread+0x987/0xea0 kernel/workqueue.c:3577 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-md state:I stack:29768 pid:41 tgid:41 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rescuer_thread+0x987/0xea0 kernel/workqueue.c:3577 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-edac- state:I stack:31176 pid:42 tgid:42 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rescuer_thread+0x987/0xea0 kernel/workqueue.c:3577 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-quota state:I stack:29768 pid:43 tgid:43 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rescuer_thread+0x987/0xea0 kernel/workqueue.c:3577 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/1:1H state:I stack:30616 pid:44 tgid:44 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3442 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-rpcio state:I stack:31176 pid:45 tgid:45 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rescuer_thread+0x987/0xea0 kernel/workqueue.c:3577 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-xprti state:I stack:31176 pid:46 tgid:46 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rescuer_thread+0x987/0xea0 kernel/workqueue.c:3577 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-cfg80 state:I stack:31176 pid:47 tgid:47 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rescuer_thread+0x987/0xea0 kernel/workqueue.c:3577 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/u8:3 state:I stack:25896 pid:48 tgid:48 ppid:2 task_flags:0x4208060 flags:0x00080000 Workqueue: 0x0 (events_unbound) Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3442 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/u8:4 state:I stack:26488 pid:49 tgid:49 ppid:2 task_flags:0x4208060 flags:0x00080000 Workqueue: 0x0 (events_unbound) Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3442 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kswapd0 state:S stack:30712 pid:69 tgid:69 ppid:2 task_flags:0x220840 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 kswapd_try_to_sleep mm/vmscan.c:7301 [inline] kswapd+0xa07/0xb90 mm/vmscan.c:7359 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-nfsio state:I stack:30064 pid:75 tgid:75 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rescuer_thread+0x987/0xea0 kernel/workqueue.c:3577 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-acpi_ state:I stack:31176 pid:112 tgid:112 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rescuer_thread+0x987/0xea0 kernel/workqueue.c:3577 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:hwrng state:S stack:29704 pid:175 tgid:175 ppid:2 task_flags:0x208040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 schedule_timeout+0x123/0x290 kernel/time/sleep_timeout.c:99 add_hwgenerator_randomness+0xff/0x190 drivers/char/random.c:970 hwrng_fillfn+0x217/0x440 drivers/char/hw_random/core.c:515 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:scsi_eh_0 state:S stack:30920 pid:277 tgid:277 ppid:2 task_flags:0x208040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 scsi_error_handler+0x52e/0xf10 drivers/scsi/scsi_error.c:2332 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-scsi_ state:I stack:30888 pid:278 tgid:278 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rescuer_thread+0x987/0xea0 kernel/workqueue.c:3577 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-targe state:I stack:30888 pid:299 tgid:299 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rescuer_thread+0x987/0xea0 kernel/workqueue.c:3577 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-targe state:I stack:30888 pid:300 tgid:300 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rescuer_thread+0x987/0xea0 kernel/workqueue.c:3577 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-xcopy state:I stack:29768 pid:301 tgid:301 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rescuer_thread+0x987/0xea0 kernel/workqueue.c:3577 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/u8:6 state:R running task stack:23224 pid:330 tgid:330 ppid:2 task_flags:0x4208060 flags:0x00080000 Workqueue: 0x0 (events_unbound) Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3442 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/0:1H state:I stack:27640 pid:332 tgid:332 ppid:2 task_flags:0x4208060 flags:0x00080000 Workqueue: 0x0 (kblockd) Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3442 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/u8:7 state:I stack:21880 pid:342 tgid:342 ppid:2 task_flags:0x4208060 flags:0x00080000 Workqueue: 0x0 (events_unbound) Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3442 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-liber state:I stack:31176 pid:390 tgid:390 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rescuer_thread+0x987/0xea0 kernel/workqueue.c:3577 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-zd121 state:I stack:29768 pid:421 tgid:421 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rescuer_thread+0x987/0xea0 kernel/workqueue.c:3577 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-uas state:I stack:30888 pid:502 tgid:502 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rescuer_thread+0x987/0xea0 kernel/workqueue.c:3577 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/0:2 state:R running task stack:25808 pid:761 tgid:761 ppid:2 task_flags:0x4208060 flags:0x00080000 Workqueue: 0x0 (events) Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3442 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-usbip state:I stack:29768 pid:1061 tgid:1061 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rescuer_thread+0x987/0xea0 kernel/workqueue.c:3577 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/1:2 state:I stack:21640 pid:1120 tgid:1120 ppid:2 task_flags:0x4208060 flags:0x00080000 Workqueue: 0x0 (events_power_efficient) Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 worker_thread+0x2e5/0xf10 kernel/workqueue.c:3442 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:pvrusb2-context state:S stack:30776 pid:1308 tgid:1308 ppid:2 task_flags:0x208040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 pvr2_context_thread_func+0x62f/0x9b0 drivers/media/usb/pvrusb2/pvrusb2-context.c:160 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-kvub3 state:I stack:30888 pid:1346 tgid:1346 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rescuer_thread+0x987/0xea0 kernel/workqueue.c:3577 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-kvub3 state:I stack:30888 pid:1347 tgid:1347 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rescuer_thread+0x987/0xea0 kernel/workqueue.c:3577 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-kvub3 state:I stack:30888 pid:1348 tgid:1348 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rescuer_thread+0x987/0xea0 kernel/workqueue.c:3577 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-kmems state:I stack:31176 pid:1352 tgid:1352 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rescuer_thread+0x987/0xea0 kernel/workqueue.c:3577 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-elous state:I stack:30016 pid:1386 tgid:1386 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x12fc/0x3b80 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7026 rescuer_thread+0x987/0xea0 kernel/workqueue.c:3577