rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5875/1:b..l rcu: (detected by 1, t=10502 jiffies, g=9145, q=881 ncpus=2) task:udevd state:R running task stack:25624 pid:5875 tgid:5875 ppid:5197 task_flags:0x400140 flags:0x00080001 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7256 irqentry_exit+0x6f/0x90 kernel/entry/common.c:211 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:lock_release+0x2b5/0x3e0 kernel/locking/lockdep.c:5893 Code: 51 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f7 44 24 20 00 02 00 00 75 56 f7 c3 00 02 00 00 74 01 fb 65 48 8b 05 9b ba d0 10 <48> 3b 44 24 28 0f 85 8b 00 00 00 48 83 c4 30 5b 41 5c 41 5d 41 5e RSP: 0018:ffffc90004207670 EFLAGS: 00000206 RAX: 12359ecc66e39e00 RBX: 0000000000000206 RCX: 12359ecc66e39e00 RDX: 0000000000000002 RSI: ffffffff8d8f29fa RDI: ffffffff8bbf05e0 RBP: ffff888032f30b80 R08: ffffc90004207bb8 R09: 0000000000000000 R10: ffffc900042077f8 R11: fffff52000840f01 R12: 0000000000000002 R13: 0000000000000002 R14: ffffffff8df3d2e0 R15: ffff888032f30000 rcu_lock_release include/linux/rcupdate.h:341 [inline] rcu_read_unlock include/linux/rcupdate.h:897 [inline] class_rcu_destructor include/linux/rcupdate.h:1195 [inline] unwind_next_frame+0x19a9/0x2390 arch/x86/kernel/unwind_orc.c:680 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:56 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:77 unpoison_slab_object mm/kasan/common.c:342 [inline] __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:368 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4970 [inline] slab_alloc_node mm/slub.c:5280 [inline] kmem_cache_alloc_noprof+0x367/0x6e0 mm/slub.c:5287 lsm_inode_alloc security/security.c:761 [inline] security_inode_alloc+0x39/0x330 security/security.c:1736 inode_init_always_gfp+0x9ed/0xdc0 fs/inode.c:306 inode_init_always include/linux/fs.h:3312 [inline] alloc_inode+0x82/0x1b0 fs/inode.c:353 new_inode+0x22/0x170 fs/inode.c:1145 __shmem_get_inode mm/shmem.c:3046 [inline] shmem_get_inode+0x346/0xe90 mm/shmem.c:3120 shmem_symlink+0xa3/0x510 mm/shmem.c:4094 vfs_symlink+0x143/0x2f0 fs/namei.c:4817 do_symlinkat+0x1b1/0x3f0 fs/namei.c:4843 __do_sys_symlink fs/namei.c:4864 [inline] __se_sys_symlink fs/namei.c:4862 [inline] __x64_sys_symlink+0x7a/0x90 fs/namei.c:4862 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f32be915527 RSP: 002b:00007ffe8a66d2b8 EFLAGS: 00000202 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000555d9b335010 RCX: 00007f32be915527 RDX: 0000000000000000 RSI: 0000555d9b335010 RDI: 00007ffe8a66d370 RBP: 0000555d9b33504e R08: 0000555d9b335010 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe8a66e40b R13: 00007ffe8a66d370 R14: 0000555d8a13c6d7 R15: 00007ffe8a66e400 rcu: rcu_preempt kthread starved for 10497 jiffies! g9145 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 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 stack:27224 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 schedule_timeout+0x12b/0x270 kernel/time/sleep_timeout.c:99 rcu_gp_fqs_loop+0x301/0x1540 kernel/rcu/tree.c:2083 rcu_gp_kthread+0x99/0x390 kernel/rcu/tree.c:2285 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 rcu: Stack dump where RCU GP kthread last ran: Sending NMI from CPU 1 to CPUs 0: D NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 5890 Comm: kworker/0:3 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 Workqueue: usb_hub_wq hub_event RIP: 0010:get_current arch/x86/include/asm/current.h:25 [inline] RIP: 0010:write_comp_data kernel/kcov.c:245 [inline] RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x8/0x90 kernel/kcov.c:314 Code: 48 89 44 11 20 c3 cc cc cc cc cc 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 <65> 48 8b 14 25 08 20 6e 92 65 8b 0d d8 17 ae 10 81 e1 00 01 ff 00 RSP: 0018:ffffc90000006338 EFLAGS: 00000046 RAX: ffffffff8b4225a6 RBX: 0000000000000000 RCX: ffff88802dad9e40 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000006460 R08: ffff88802dad9e40 R09: 0000000000000008 R10: 0000000000000007 R11: 0000000000000100 R12: 00000000ffff0a00 R13: ffffc90000006741 R14: ffffc90000006741 R15: 1ffff92000000c74 FS: 0000000000000000(0000) GS:ffff88812613e000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe8a661608 CR3: 0000000074862000 CR4: 00000000003526f0 Call Trace: number+0xa6/0xf60 lib/vsprintf.c:472 vsnprintf+0x91b/0xf00 lib/vsprintf.c:2890 sprintf+0xd9/0x120 lib/vsprintf.c:3089 print_time kernel/printk/printk.c:1354 [inline] info_print_prefix+0x155/0x310 kernel/printk/printk.c:1380 record_print_text+0x154/0x420 kernel/printk/printk.c:1429 printk_get_next_message+0x26d/0x7b0 kernel/printk/printk.c:2997 console_emit_next_record kernel/printk/printk.c:3065 [inline] console_flush_all+0x4ca/0xb10 kernel/printk/printk.c:3199 __console_flush_and_unlock kernel/printk/printk.c:3258 [inline] console_unlock+0xbb/0x190 kernel/printk/printk.c:3298 vprintk_emit+0x4c5/0x590 kernel/printk/printk.c:2423 _printk+0xcf/0x120 kernel/printk/printk.c:2448 print_task kernel/sched/debug.c:732 [inline] print_rq kernel/sched/debug.c:792 [inline] print_cpu+0xeba/0x22b0 kernel/sched/debug.c:977 sysrq_sched_debug_show+0x73/0x90 kernel/sched/debug.c:1061 show_state_filter+0x23a/0x2b0 kernel/sched/core.c:7950 kbd_keycode drivers/tty/vt/keyboard.c:1515 [inline] kbd_event+0x2b72/0x3f70 drivers/tty/vt/keyboard.c:1534 input_handle_events_default+0xd4/0x1a0 drivers/input/input.c:2541 input_pass_values+0x288/0x890 drivers/input/input.c:128 input_event_dispose+0x3e5/0x6b0 drivers/input/input.c:353 input_event+0x89/0xe0 drivers/input/input.c:396 hidinput_hid_event+0x145e/0x1dd0 drivers/hid/hid-input.c:1730 hid_process_event+0x4be/0x620 drivers/hid/hid-core.c:1565 hid_input_array_field+0x41c/0x5f0 drivers/hid/hid-core.c:1677 hid_process_report drivers/hid/hid-core.c:1719 [inline] hid_report_raw_event+0xdd9/0x16d0 drivers/hid/hid-core.c:2074 __hid_input_report drivers/hid/hid-core.c:2144 [inline] hid_input_report+0x43e/0x520 drivers/hid/hid-core.c:2166 hid_irq_in+0x47e/0x6d0 drivers/hid/usbhid/hid-core.c:286 __usb_hcd_giveback_urb+0x376/0x540 drivers/usb/core/hcd.c:1661 dummy_timer+0x85f/0x44c0 drivers/usb/gadget/udc/dummy_hcd.c:1995 __run_hrtimer kernel/time/hrtimer.c:1777 [inline] __hrtimer_run_queues+0x52c/0xc60 kernel/time/hrtimer.c:1841 hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1858 handle_softirqs+0x286/0x870 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xca/0x1f0 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+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1052 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:lock_release+0x2b5/0x3e0 kernel/locking/lockdep.c:5893 Code: 51 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f7 44 24 20 00 02 00 00 75 56 f7 c3 00 02 00 00 74 01 fb 65 48 8b 05 9b ba d0 10 <48> 3b 44 24 28 0f 85 8b 00 00 00 48 83 c4 30 5b 41 5c 41 5d 41 5e RSP: 0018:ffffc900042b63b0 EFLAGS: 00000206 RAX: cbe9a99dd6d1d300 RBX: 0000000000000206 RCX: cbe9a99dd6d1d300 RDX: 0000000000000006 RSI: ffffffff8d8f29fa RDI: ffffffff8bbf05e0 RBP: ffff88802dadaa60 R08: ffffc900042b6ab0 R09: 0000000000000000 R10: ffffc900042b6538 R11: fffff52000856ca9 R12: 0000000000000006 R13: 0000000000000006 R14: ffffffff8df3d2e0 R15: ffff88802dad9e40 rcu_lock_release include/linux/rcupdate.h:341 [inline] rcu_read_unlock include/linux/rcupdate.h:897 [inline] class_rcu_destructor include/linux/rcupdate.h:1195 [inline] unwind_next_frame+0x19a9/0x2390 arch/x86/kernel/unwind_orc.c:680 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 save_stack+0xf5/0x1f0 mm/page_owner.c:156 __reset_page_owner+0x71/0x1f0 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+0xbc4/0xd30 mm/page_alloc.c:2906 vfree+0x25a/0x400 mm/vmalloc.c:3440 hid_open_report+0xa51/0xee0 drivers/hid/hid-core.c:1365 __hid_device_probe drivers/hid/hid-core.c:2777 [inline] hid_device_probe+0x4c2/0x7a0 drivers/hid/hid-core.c:2812 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x26d/0x9e0 drivers/base/dd.c:659 __driver_probe_device+0x18c/0x2f0 drivers/base/dd.c:801 driver_probe_device+0x4f/0x430 drivers/base/dd.c:831 __device_attach_driver+0x2ce/0x530 drivers/base/dd.c:959 bus_for_each_drv+0x251/0x2e0 drivers/base/bus.c:462 __device_attach+0x2b8/0x400 drivers/base/dd.c:1031 bus_probe_device+0x185/0x260 drivers/base/bus.c:537 device_add+0x7b6/0xb50 drivers/base/core.c:3689 hid_add_device+0x272/0x3e0 drivers/hid/hid-core.c:2951 usbhid_probe+0xe13/0x12a0 drivers/hid/usbhid/hid-core.c:1435 usb_probe_interface+0x668/0xc30 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x26d/0x9e0 drivers/base/dd.c:659 __driver_probe_device+0x18c/0x2f0 drivers/base/dd.c:801 driver_probe_device+0x4f/0x430 drivers/base/dd.c:831 __device_attach_driver+0x2ce/0x530 drivers/base/dd.c:959 bus_for_each_drv+0x251/0x2e0 drivers/base/bus.c:462 __device_attach+0x2b8/0x400 drivers/base/dd.c:1031 bus_probe_device+0x185/0x260 drivers/base/bus.c:537 device_add+0x7b6/0xb50 drivers/base/core.c:3689 usb_set_configuration+0x1a87/0x20e0 drivers/usb/core/message.c:2210 usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:250 usb_probe_device+0x1c4/0x390 drivers/usb/core/driver.c:291 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x26d/0x9e0 drivers/base/dd.c:659 __driver_probe_device+0x18c/0x2f0 drivers/base/dd.c:801 driver_probe_device+0x4f/0x430 drivers/base/dd.c:831 __device_attach_driver+0x2ce/0x530 drivers/base/dd.c:959 bus_for_each_drv+0x251/0x2e0 drivers/base/bus.c:462 __device_attach+0x2b8/0x400 drivers/base/dd.c:1031 bus_probe_device+0x185/0x260 drivers/base/bus.c:537 device_add+0x7b6/0xb50 drivers/base/core.c:3689 usb_new_device+0xa39/0x16f0 drivers/usb/core/hub.c:2694 hub_port_connect drivers/usb/core/hub.c:5566 [inline] hub_port_connect_change drivers/usb/core/hub.c:5706 [inline] port_event drivers/usb/core/hub.c:5870 [inline] hub_event+0x2958/0x4a20 drivers/usb/core/hub.c:5952 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 4.902 msecs kworker/1:2 980 28637.211712 E 28638.275135 1.400000 217.185486 579 120 0.000000 0.000000 0.000000 0 0 / I kworker/R-iscsi 1001 4968.009756 E 4968.025677 1.400000 0.038861 2 100 0.000000 0.000000 0.000000 0 0 / I kworker/u8:5 1013 28639.875836 E 28641.063966 1.400000 1208.469023 1922 120 0.000000 0.000000 0.000000 0 0 / I kworker/R-nvme- 1034 4983.113592 E 4983.129498 1.400000 0.087863 2 100 0.000000 0.000000 0.000000 0 0 / I kworker/R-nvme_ 1045 4986.892438 E 4986.908384 1.400000 0.065318 2 100 0.000000 0.000000 0.000000 0 0 / I kworker/R-nvmet 1048 4987.469753 E 4987.485595 1.400000 0.051955 2 100 0.000000 0.000000 0.000000 0 0 / I kworker/R-nvmet 1050 4988.679514 E 4988.695252 1.400000 0.093837 3 100 0.000000 0.000000 0.000000 0 0 / I kworker/R-nvmet 1051 4990.680263 E 4990.696414 1.400000 0.026913 2 100 0.000000 0.000000 0.000000 0 0 / I kworker/R-nvmet 1055 4995.921495 E 4995.937294 1.400000 0.054094 2 100 0.000000 0.000000 0.000000 0 0 / I kworker/R-targe 1062 4998.575747 E 4998.591562 1.400000 0.050985 2 100 0.000000 0.000000 0.000000 0 0 / I kworker/R-targe 1063 5001.509125 E 5001.524305 1.400000 0.106302 2 100 0.000000 0.000000 0.000000 0 0 / I kworker/R-xcopy 1064 5008.362498 E 5008.378397 1.400000 0.259945 3 100 0.000000 0.000000 0.000000 0 0 / I kworker/R-phy0- 1230 5287.600106 E 5287.616039 1.400000 0.040599 2 100 0.000000 0.000000 0.000000 0 0 / I kworker/R-phy1- 1236 5295.340902 E 5295.356494 1.400000 0.084799 2 100 0.000000 0.000000 0.000000 0 0 / S aoe_ktio0 1302 5380.797493 E 5380.924600 1.400000 0.245487 2 110 0.000000 0.000000 0.000000 0 0 / I kworker/R-uas 1344 5398.590648 E 5398.606395 1.400000 0.273777 2 100 0.000000 0.000000 0.000000 0 0 / I kworker/R-usbip 1912 6543.148287 E 6543.164110 1.400000 0.082930 2 100 0.000000 0.000000 0.000000 0 0 / S pvrusb2-context 2345 8306.127957 E 8307.434171 1.400000 0.150600 2 120 0.000000 0.000000 0.000000 0 0 / S vivid_cec-vivid 2398 8398.695015 E 8399.919020 1.400000 0.226323 2 120 0.000000 0.000000 0.000000 0 0 / S vivid_cec-vivid 2414 8407.197488 E 8408.586823 1.400000 0.060034 2 120 0.000000 0.000000 0.000000 0 0 / S cec-vivid-002-v 2429 8421.063249 E 8422.454123 1.400000 0.060025 2 120 0.000000 0.000000 0.000000 0 0 / S cec-vivid-003-v 2444 8550.951642 E 8552.333863 1.400000 0.076768 2 120 0.000000 0.000000 0.000000 0 0 / S vivid_cec-vivid 2446 8551.366700 E 8552.748357 1.400000 0.072287 2 120 0.000000 0.000000 0.000000 0 0 / S cec-vivid-004-v 2461 8557.869780 E 8559.260712 1.400000 0.058492 2 120 0.000000 0.000000 0.000000 0 0 / S cec-vivid-005-v 2476 8686.825690 E 8688.213270 1.400000 0.078630 2 120 0.000000 0.000000 0.000000 0 0 / S vivid_cec-vivid 2478 8687.289876 E 8688.671221 1.400000 0.070591 2 120 0.000000 0.000000 0.000000 0 0 / S cec-vivid-006-v 2493 8694.061381 E 8695.452517 1.400000 0.057133 2 120 0.000000 0.000000 0.000000 0 0 / S cec-vivid-007-v 2508 8823.869673 E 8825.243290 1.400000 0.078181 2 120 0.000000 0.000000 0.000000 0 0 / S vivid_cec-vivid 2510 8824.454300 E 8825.842693 1.400000 0.066404 2 120 0.000000 0.000000 0.000000 0 0 / S cec-vivid-008-v 2525 8831.134697 E 8832.525851 1.400000 0.057360 2 120 0.000000 0.000000 0.000000 0 0 / S cec-vivid-009-v 2540 8960.839998 E 8962.221113 1.400000 0.082307 2 120 0.000000 0.000000 0.000000 0 0 / S vivid_cec-vivid 2542 8961.257897 E 8962.638111 1.400000 0.074308 2 120 0.000000 0.000000 0.000000 0 0 / S cec-vivid-010-v 2557 8967.707078 E 8969.098015 1.400000 0.056403 2 120 0.000000 0.000000 0.000000 0 0 / S cec-vivid-011-v 2572 9100.067616 E 9101.457190 1.400000 0.067701 2 120 0.000000 0.000000 0.000000 0 0 / S vivid_cec-vivid 2574 9100.475023 E 9101.864206 1.400000 0.057601 2 120 0.000000 0.000000 0.000000 0 0 / S cec-vivid-012-v 2589 9107.763047 E 9109.154094 1.400000 0.057702 2 120 0.000000 0.000000 0.000000 0 0 / S cec-vivid-013-v 2604 9238.213947 E 9239.596222 1.400000 0.082413 2 120 0.000000 0.000000 0.000000 0 0 / S vivid_cec-vivid 2606 9238.667085 E 9239.303997 1.400000 0.063088 2 120 0.000000 0.000000 0.000000 0 0 / S cec-vivid-014-v 2620 9369.592351 E 9370.957183 1.400000 0.102758 2 120 0.000000 0.000000 0.000000 0 0 / S cec-vivid-014-v 2621 9369.671427 E 9371.054132 1.400000 0.079076 2 120 0.000000 0.000000 0.000000 0 0 / S vivid_cec-vivid 2622 9369.739800 E 9371.122339 1.400000 0.068373 2 120 0.000000 0.000000 0.000000 0 0 / S cec-vivid-015-v 2636 9376.981571 E 9378.369933 1.400000 0.039362 2 120 0.000000 0.000000 0.000000 0 0 / S vivid_cec-vivid 2638 9377.432131 E 9378.821229 1.400000 0.058051 2 120 0.000000 0.000000 0.000000 0 0 / S cec-vivid-016-v 2653 9385.142440 E 9386.533426 1.400000 0.061353 2 120 0.000000 0.000000 0.000000 0 0 / S cec-vivid-017-v 2668 9516.072728 E 9517.455187 1.400000 0.090841 2 120 0.000000 0.000000 0.000000 0 0 / S vivid_cec-vivid 2670 9516.537326 E 9517.919254 1.400000 0.070127 2 120 0.000000 0.000000 0.000000 0 0 / S cec-vivid-018-v 2685 9523.267984 E 9524.658718 1.400000 0.060753 2 120 0.000000 0.000000 0.000000 0 0 / S cec-vivid-019-v 2700 9652.550752 E 9653.933383 1.400000 0.076002 2 120 0.000000 0.000000 0.000000 0 0 / S vivid_cec-vivid 2702 9652.997639 E 9654.378752 1.400000 0.072145 2 120 0.000000 0.000000 0.000000 0 0 / S cec-vivid-020-v 2717 9659.858937 E 9661.249860 1.400000 0.060456 2 120 0.000000 0.000000 0.000000 0 0 / S cec-vivid-021-v 2732 9789.587923 E 9790.969013 1.400000 0.079855 2 120 0.000000 0.000000 0.000000 0 0 / S vivid_cec-vivid 2734 9790.546704 E 9791.927731 1.400000 0.072902 2 120 0.000000 0.000000 0.000000 0 0 / S cec-vivid-022-v 2748 9912.549251 E 9913.929736 1.400000 0.085484 2 120 0.000000 0.000000 0.000000 0 0 / S vivid_cec-vivid 2750 9912.829762 E 9914.210478 1.400000 0.079939 2 120 0.000000 0.000000 0.000000 0 0 / S cec-vivid-023-v 2764 10014.353002 E 10015.733883 1.400000 0.085634 2 120 0.000000 0.000000 0.000000 0 0 / S vivid_cec-vivid 2766 10014.639809 E 10016.020118 1.400000 0.082030 2 120 0.000000 0.000000 0.000000 0 0 / I kworker/R-updat 2792 10072.148729 E 10072.164734 1.400000 0.060922 2 100 0.000000 0.000000 0.000000 0 0 / I kworker/R-bcach 2812 10080.618535 E 10080.634519 1.400000 0.064175 2 100 0.000000 0.000000 0.000000 0 0 / I kworker/R-kmpat 2816 10107.822154 E 10107.838139 1.400000 0.058241 2 100 0.000000 0.000000 0.000000 0 0 / I kworker/R-kvub3 2836 10253.061159 E 10253.077126 1.400000 0.063148 2 100 0.000000 0.000000 0.000000 0 0 / I kworker/R-kvub3 2838 10253.560778 E 10253.576785 1.400000 0.057918 2 100 0.000000 0.000000 0.000000 0 0 / I kworker/R-kmems 2842 10254.736549 E 10254.752517 1.400000 0.053221 2 100 0.000000 0.000000 0.000000 0 0 / I kworker/R-rdma_ 2847 10256.570338 E 10256.586336 1.400000 0.057859 2 100 0.000000 0.000000 0.000000 0 0 / I kworker/R-mlx4_ 2852 10258.336949 E 10258.352936 1.400000 0.059482 2 100 0.000000 0.000000 0.000000 0 0 / I kworker/R-srp_r 2853 10258.620555 E 10258.636358 1.400000 0.051547 2 100 0.000000 0.000000 0.000000 0 0 / I kworker/R-qat_d 2870 10261.961690 E 10261.977681 1.400000 0.060914 2 100 0.000000 0.000000 0.000000 0 0 / I kworker/R-adf_v 2872 10262.426048 E 10262.442040 1.400000 0.066704 2 100 0.000000 0.000000 0.000000 0 0 / I kworker/R-ipv6_ 3184 10564.059932 E 10564.075919 1.400000 0.062975 2 100 0.000000 0.000000 0.000000 0 0 / S krfcommd 3390 10729.051948 E 10729.139726 1.400000 0.809398 2 110 0.000000 0.000000 0.000000 0 0 / I kworker/R-kstrp 3396 10747.079897 E 10747.095890 1.400000 0.065332 2 100 0.000000 0.000000 0.000000 0 0 / I kworker/R-rds_m 3398 10758.439383 E 10758.455363 1.400000 0.067471 2 100 0.000000 0.000000 0.000000 0 0 / I kworker/R-ism_e 3399 10775.260023 E 10775.275997 1.400000 0.075831 2 100 0.000000 0.000000 0.000000 0 0 / I kworker/R-bat_e 3409 10796.637309 E 10796.653293 1.400000 0.065555 2 100 0.000000 0.000000 0.000000 0 0 / I kworker/R-zswap 5142 11902.212196 E 11902.228169 1.400000 0.073829 2 100 0.000000 0.000000 0.000000 0 0 / I kworker/R-kafs_ 5145 12086.724225 E 12086.740126 1.400000 0.077600 2 100 0.000000 0.000000 0.000000 0 0 / I kworker/u9:1 5148 27890.646867 E 27890.663018 1.400000 5.662948 18 100 0.000000 0.000000 0.000000 0 0 / S syslogd 5179 28664.375862 E 28665.712447 1.400000 153.904170 1251 120 0.000000 0.000000 0.000000 0 0 / S acpid 5182 76780.567269 E 76781.043576 1.400000 43.011033 39 120 0.000000 0.000000 0.000000 0 0 / R crond 5570 76787.976909 E 76789.376909 1.400000 37.064482 20 120 0.000000 0.000000 0.000000 0 0 / S dhcpcd 5628 22640.127866 E 22641.207530 1.400000 10.132755 9 120 0.000000 0.000000 0.000000 0 0 / S dhcpcd 5630 22649.735315 E 22650.815408 1.400000 8.507845 8 120 0.000000 0.000000 0.000000 0 0 / S dhcpcd 5632 22639.265788 E 22640.331395 1.400000 7.437987 8 120 0.000000 0.000000 0.000000 0 0 / S dhcpcd 5642 20948.791395 E 20950.043413 1.400000 8.996956 4 120 0.000000 0.000000 0.000000 0 0 / S dhcpcd 5648 20948.216172 E 20949.456013 1.400000 6.891531 4 120 0.000000 0.000000 0.000000 0 0 / S sshd-session 5854 26582.016861 E 26583.416861 1.400000 56.288767 7 120 0.000000 0.000000 0.000000 0 0 / S syz-executor102 5859 27874.314739 E 27875.628941 1.400000 6.425185 2 120 0.000000 0.000000 0.000000 0 0 / S syz-executor102 5866 27876.370179 E 27877.721649 1.400000 3.752987 3 120 0.000000 0.000000 0.000000 0 0 / I kworker/u9:2 5869 27888.971551 E 27888.977688 1.400000 61.642281 20 100 0.000000 0.000000 0.000000 0 0 / R udevd 5873 76807.976909 E 76809.345069 1.400000 54046.873565 23 120 0.000000 0.000000 0.000000 0 0 / I kworker/u9:4 5874 27903.100808 E 27903.116959 1.400000 41.774774 29 100 0.000000 0.000000 0.000000 0 0 / I kworker/u9:6 5878 27891.196379 E 27891.211524 1.400000 42.501527 23 100 0.000000 0.000000 0.000000 0 0 / S udevd 5881 28650.167544 E 28651.019431 1.400000 16.800421 15 120 0.000000 0.000000 0.000000 0 0 / S udevd 5882 28671.686964 E 28672.733229 1.400000 28.493798 12 120 0.000000 0.000000 0.000000 0 0 / S udevd 5883 76805.563438 E 76806.963438 1.400000 73.998062 60 120 0.000000 0.000000 0.000000 0 0 / S krxrpcio/7001 5886 28127.642906 E 28127.658600 1.400000 0.092020 2 100 0.000000 0.000000 0.000000 0 0 / S krxrpcio/7001 5887 28140.795188 E 28140.802710 1.400000 0.048007 2 100 0.000000 0.000000 0.000000 0 0 / S kworker/1:3 5892 28660.912030 E 28662.095725 1.400000 101.577790 76 120 0.000000 0.000000 0.000000 0 0 / >R syz-executor102 5893 129377.878069 N 129379.278069 1.400000 52600.863921 21 120 0.000000 0.000000 0.000000 0 0 / Showing all locks held in the system: 5 locks held by kworker/u8:2/36: 11 locks held by kworker/1:2/980: #0: ffff88802028f148 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3238 [inline] #0: ffff88802028f148 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0 kernel/workqueue.c:3346 #1: ffffc90003b77ba0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3239 [inline] #1: ffffc90003b77ba0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0 kernel/workqueue.c:3346 #2: ffff888144f69198 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:914 [inline] #2: ffff888144f69198 (&dev->mutex){....}-{4:4}, at: hub_event+0x184/0x4a20 drivers/usb/core/hub.c:5898 #3: ffff88801d7fa198 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:914 [inline] #3: ffff88801d7fa198 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x400 drivers/base/dd.c:1006 #4: ffff888032e7b160 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:914 [inline] #4: ffff888032e7b160 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x400 drivers/base/dd.c:1006 #5: ffff888079d79a20 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:914 [inline] #5: ffff888079d79a20 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x400 drivers/base/dd.c:1006 #6: ffffffff8ed58e68 (input_mutex){+.+.}-{4:4}, at: class_mutex_intr_constructor include/linux/mutex.h:230 [inline] #6: ffffffff8ed58e68 (input_mutex){+.+.}-{4:4}, at: input_register_device+0xa76/0x1140 drivers/input/input.c:2374 #7: ffff888071cca300 (&led_cdev->led_access){+.+.}-{4:4}, at: led_classdev_register_ext+0x43d/0x930 drivers/leds/led-class.c:536 #8: ffffffff8e696690 (triggers_list_lock){++++}-{4:4}, at: led_trigger_set_default+0x77/0x2a0 drivers/leds/led-triggers.c:297 #9: ffff888071cca218 (&led_cdev->trigger_lock){+.+.}-{4:4}, at: led_trigger_set_default+0x87/0x2a0 drivers/leds/led-triggers.c:298 #10: ffffffff8df42d78 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:311 [inline] #10: ffffffff8df42d78 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x2f6/0x730 kernel/rcu/tree_exp.h:957 7 locks held by kworker/0:2/983: #0: ffff88802028f148 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3238 [inline] #0: ffff88802028f148 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0 kernel/workqueue.c:3346 #1: ffffc90003b67ba0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3239 [inline] #1: ffffc90003b67ba0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0 kernel/workqueue.c:3346 #2: ffff888028499198 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:914 [inline] #2: ffff888028499198 (&dev->mutex){....}-{4:4}, at: hub_event+0x184/0x4a20 drivers/usb/core/hub.c:5898 #3: ffff888033021198 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:914 [inline] #3: ffff888033021198 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x400 drivers/base/dd.c:1006 #4: ffff88807a888160 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:914 [inline] #4: ffff88807a888160 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x400 drivers/base/dd.c:1006 #5: ffff888078f49a20 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:914 [inline] #5: ffff888078f49a20 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x400 drivers/base/dd.c:1006 #6: ffffffff8ed58e68 (input_mutex){+.+.}-{4:4}, at: class_mutex_intr_constructor include/linux/mutex.h:230 [inline] #6: ffffffff8ed58e68 (input_mutex){+.+.}-{4:4}, at: input_register_device+0xa76/0x1140 drivers/input/input.c:2374 2 locks held by getty/5588: #0: ffff88814d1840a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc9000332b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400 drivers/tty/n_tty.c:2222 2 locks held by udevd/5873: 2 locks held by udevd/5875: 10 locks held by kworker/0:3/5890: #0: ffff88802028f148 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3238 [inline] #0: ffff88802028f148 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0 kernel/workqueue.c:3346 #1: ffffc900042b7ba0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3239 [inline] #1: ffffc900042b7ba0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0 kernel/workqueue.c:3346 #2: ffff888144fda198 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:914 [inline] #2: ffff888144fda198 (&dev->mutex){....}-{4:4}, at: hub_event+0x184/0x4a20 drivers/usb/core/hub.c:5898 #3: ffff888033022198 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:914 [inline] #3: ffff888033022198 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x400 drivers/base/dd.c:1006 #4: ffff88807a88a160 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:914 [inline] #4: ffff88807a88a160 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x400 drivers/base/dd.c:1006 #5: ffff888076821a20 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:914 [inline] #5: ffff888076821a20 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x400 drivers/base/dd.c:1006 #6: ffff88807a88f230 (&dev->event_lock#2){..-.}-{3:3}, at: class_spinlock_irqsave_constructor include/linux/spinlock.h:585 [inline] #6: ffff88807a88f230 (&dev->event_lock#2){..-.}-{3:3}, at: input_event+0x76/0xe0 drivers/input/input.c:395 #7: ffffffff8df3d2e0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline] #7: ffffffff8df3d2e0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:867 [inline] #7: ffffffff8df3d2e0 (rcu_read_lock){....}-{1:3}, at: class_rcu_constructor include/linux/rcupdate.h:1195 [inline] #7: ffffffff8df3d2e0 (rcu_read_lock){....}-{1:3}, at: input_pass_values+0x8d/0x890 drivers/input/input.c:119 #8: ffffffff8e759298 (kbd_event_lock){..-.}-{3:3}, at: spin_lock include/linux/spinlock.h:351 [inline] #8: ffffffff8e759298 (kbd_event_lock){..-.}-{3:3}, at: kbd_event+0xd2/0x3f70 drivers/tty/vt/keyboard.c:1528 #9: ffffffff8df3d2e0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline] #9: ffffffff8df3d2e0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:867 [inline] #9: ffffffff8df3d2e0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6775 2 locks held by syz-executor102/5891: 7 locks held by kworker/1:3/5892: #0: ffff88802028f148 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3238 [inline] #0: ffff88802028f148 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0 kernel/workqueue.c:3346 #1: ffffc900042d7ba0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3239 [inline] #1: ffffc900042d7ba0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0 kernel/workqueue.c:3346 #2: ffff888144f79198 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:914 [inline] #2: ffff888144f79198 (&dev->mutex){....}-{4:4}, at: hub_event+0x184/0x4a20 drivers/usb/core/hub.c:5898 #3: ffff888033425198 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:914 [inline] #3: ffff888033425198 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x400 drivers/base/dd.c:1006 #4: ffff888024471160 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:914 [inline] #4: ffff888024471160 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x400 drivers/base/dd.c:1006 #5: ffff888031619a20 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:914 [inline] #5: ffff888031619a20 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x400 drivers/base/dd.c:1006 #6: ffffffff8ed58e68 (input_mutex){+.+.}-{4:4}, at: class_mutex_intr_constructor include/linux/mutex.h:230 [inline] #6: ffffffff8ed58e68 (input_mutex){+.+.}-{4:4}, at: input_register_device+0xa76/0x1140 drivers/input/input.c:2374 1 lock held by syz-executor102/5893: ============================================= task:init state:S stack:18696 pid:1 tgid:1 ppid:0 task_flags:0x400100 flags:0x00080001 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 do_nanosleep+0x1c5/0x610 kernel/time/hrtimer.c:2116 hrtimer_nanosleep+0x169/0x360 kernel/time/hrtimer.c:2163 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1398 [inline] __se_sys_clock_nanosleep+0x339/0x390 kernel/time/posix-timers.c:1375 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc4040d6407 RSP: 002b:00007ffe706b4460 EFLAGS: 00000202 ORIG_RAX: 00000000000000e6 RAX: ffffffffffffffda RBX: 00007fc403f86c80 RCX: 00007fc4040d6407 RDX: 00007ffe706b44a0 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000016 R08: 0000000000000000 R09: 0000000000000000 R10: 00007ffe706b44a0 R11: 0000000000000202 R12: 00007fc4042f0490 R13: 00007ffe706b44dc R14: 00007fc404330000 R15: 000055e628cb4d98 task:kthreadd state:S stack:25912 pid:2 tgid:2 ppid:0 task_flags:0x208040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 kthreadd+0x3e3/0x770 kernel/kthread.c:834 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:pool_workqueue_ state:S stack:28712 pid:3 tgid:3 ppid:2 task_flags:0x208040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 kthread_worker_fn+0x4c2/0xb60 kernel/kthread.c:1017 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-rcu_g state:I stack:30088 pid:4 tgid:4 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 rescuer_thread+0xc69/0xdd0 kernel/workqueue.c:3577 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-sync_ state:I stack:30344 pid:5 tgid:5 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 rescuer_thread+0xc69/0xdd0 kernel/workqueue.c:3577 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-kvfre state:I stack:30344 pid:6 tgid:6 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 rescuer_thread+0xc69/0xdd0 kernel/workqueue.c:3577 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-slub_ state:I stack:30344 pid:7 tgid:7 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 rescuer_thread+0xc69/0xdd0 kernel/workqueue.c:3577 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 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:30344 pid:8 tgid:8 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 rescuer_thread+0xc69/0xdd0 kernel/workqueue.c:3577 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 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:24872 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+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 worker_thread+0xa82/0xda0 kernel/workqueue.c:3442 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/0:1 state:I stack:20424 pid:10 tgid:10 ppid:2 task_flags:0x4208060 flags:0x00080000 Workqueue: 0x0 (events) Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 worker_thread+0xa82/0xda0 kernel/workqueue.c:3442 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 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:28648 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+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 worker_thread+0xa82/0xda0 kernel/workqueue.c:3442 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 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:24552 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+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 worker_thread+0xa82/0xda0 kernel/workqueue.c:3442 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/u8:1 state:I stack:24168 pid:13 tgid:13 ppid:2 task_flags:0x4208060 flags:0x00080000 Workqueue: 0x0 (events_unbound) Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 worker_thread+0xa82/0xda0 kernel/workqueue.c:3442 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 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:R running task stack:30488 pid:14 tgid:14 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 rescuer_thread+0xc69/0xdd0 kernel/workqueue.c:3577 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:ksoftirqd/0 state:S stack:24136 pid:15 tgid:15 ppid:2 task_flags:0x4208040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 smpboot_thread_fn+0x5bd/0xa60 kernel/smpboot.c:156 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:rcu_preempt state:I stack:27224 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 schedule_timeout+0x12b/0x270 kernel/time/sleep_timeout.c:99 rcu_gp_fqs_loop+0x301/0x1540 kernel/rcu/tree.c:2083 rcu_gp_kthread+0x99/0x390 kernel/rcu/tree.c:2285 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 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:30408 pid:17 tgid:17 ppid:2 task_flags:0x208040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 kthread_worker_fn+0x4c2/0xb60 kernel/kthread.c:1017 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 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:D stack:28040 pid:18 tgid:18 ppid:2 task_flags:0x208040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 schedule_timeout+0x12b/0x270 kernel/time/sleep_timeout.c:99 synchronize_rcu_expedited_wait_once kernel/rcu/tree_exp.h:545 [inline] synchronize_rcu_expedited_wait kernel/rcu/tree_exp.h:658 [inline] rcu_exp_wait_wake kernel/rcu/tree_exp.h:687 [inline] rcu_exp_sel_wait_wake+0x708/0xe20 kernel/rcu/tree_exp.h:721 kthread_worker_fn+0x507/0xb60 kernel/kthread.c:1010 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:migration/0 state:S stack:28696 pid:19 tgid:19 ppid:2 task_flags:0x4208040 flags:0x00080000 Stopper: 0x0 <- 0x0 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 smpboot_thread_fn+0x5bd/0xa60 kernel/smpboot.c:156 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 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:25592 pid:20 tgid:20 ppid:2 task_flags:0x4208040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 smpboot_thread_fn+0x5bd/0xa60 kernel/smpboot.c:156 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 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:26904 pid:21 tgid:21 ppid:2 task_flags:0x4208040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 smpboot_thread_fn+0x5bd/0xa60 kernel/smpboot.c:156 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:migration/1 state:S stack:28808 pid:22 tgid:22 ppid:2 task_flags:0x4208040 flags:0x00080000 Stopper: 0x0 <- 0x0 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 smpboot_thread_fn+0x5bd/0xa60 kernel/smpboot.c:156 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 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:22216 pid:23 tgid:23 ppid:2 task_flags:0x4208040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 smpboot_thread_fn+0x5bd/0xa60 kernel/smpboot.c:156 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/1:0 state:D stack:24168 pid:24 tgid:24 ppid:2 task_flags:0x4208060 flags:0x00080000 Workqueue: 0x0 (events) Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 schedule_timeout+0x9a/0x270 kernel/time/sleep_timeout.c:75 do_wait_for_common kernel/sched/completion.c:100 [inline] __wait_for_common+0x3da/0x710 kernel/sched/completion.c:121 wait_for_common kernel/sched/completion.c:132 [inline] wait_for_completion_killable+0x1f/0x40 kernel/sched/completion.c:259 __kthread_create_on_node+0x2f9/0x3e0 kernel/kthread.c:535 kthread_create_on_node+0xdd/0x130 kernel/kthread.c:587 create_worker+0x299/0x720 kernel/workqueue.c:2802 maybe_create_worker kernel/workqueue.c:3063 [inline] manage_workers kernel/workqueue.c:3140 [inline] worker_thread+0x33e/0xda0 kernel/workqueue.c:3402 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/1:0H state:I stack:27880 pid:25 tgid:25 ppid:2 task_flags:0x4208060 flags:0x00080000 Workqueue: 0x0 (events_highpri) Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 worker_thread+0xa82/0xda0 kernel/workqueue.c:3442 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kdevtmpfs state:S stack:24712 pid:26 tgid:26 ppid:2 task_flags:0x208140 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 devtmpfs_work_loop+0xca7/0xce0 drivers/base/devtmpfs.c:409 devtmpfsd+0x4d/0x50 drivers/base/devtmpfs.c:442 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 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:30440 pid:27 tgid:27 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 rescuer_thread+0xc69/0xdd0 kernel/workqueue.c:3577 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 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:28552 pid:28 tgid:28 ppid:2 task_flags:0x208040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 rcu_tasks_one_gp+0x877/0xdf0 kernel/rcu/tasks.h:611 rcu_tasks_kthread+0x195/0x1c0 kernel/rcu/tasks.h:658 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 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:27448 pid:29 tgid:29 ppid:2 task_flags:0x208040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 rcu_tasks_one_gp+0x877/0xdf0 kernel/rcu/tasks.h:611 rcu_tasks_kthread+0x195/0x1c0 kernel/rcu/tasks.h:658 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kauditd state:S stack:28744 pid:30 tgid:30 ppid:2 task_flags:0x200040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 kauditd_thread+0x894/0x9a0 kernel/audit.c:948 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:khungtaskd state:R running task stack:29304 pid:31 tgid:31 ppid:2 task_flags:0x208040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 schedule_timeout+0x12b/0x270 kernel/time/sleep_timeout.c:99 watchdog+0x90/0xfa0 kernel/hung_task.c:499 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 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:30248 pid:32 tgid:32 ppid:2 task_flags:0x200040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 oom_reaper+0x112/0xab0 mm/oom_kill.c:656 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/R-write state:I stack:30488 pid:33 tgid:33 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 rescuer_thread+0xc69/0xdd0 kernel/workqueue.c:3577 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kcompactd0 state:R running task stack:27912 pid:34 tgid:34 ppid:2 task_flags:0x210040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 schedule_timeout+0x12b/0x270 kernel/time/sleep_timeout.c:99 kcompactd+0x406/0x1290 mm/compaction.c:3187 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kcompactd1 state:R running task stack:27784 pid:35 tgid:35 ppid:2 task_flags:0x210040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 schedule_timeout+0x12b/0x270 kernel/time/sleep_timeout.c:99 kcompactd+0x406/0x1290 mm/compaction.c:3187 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:kworker/u8:2 state:D stack:20712 pid:36 tgid:36 ppid:2 task_flags:0x4208160 flags:0x00080000 Workqueue: events_unbound idle_cull_fn Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 schedule_timeout+0x9a/0x270 kernel/time/sleep_timeout.c:75 do_wait_for_common kernel/sched/completion.c:100 [inline] __wait_for_common kernel/sched/completion.c:121 [inline] wait_for_common kernel/sched/completion.c:132 [inline] wait_for_completion+0x2bf/0x5d0 kernel/sched/completion.c:153 kthread_stop+0x193/0x5c0 kernel/kthread.c:790 kthread_stop_put+0x1a/0xa0 kernel/kthread.c:811 reap_dying_workers kernel/workqueue.c:2860 [inline] idle_cull_fn+0x662/0x730 kernel/workqueue.c:2982 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:ksmd state:S stack:29736 pid:37 tgid:37 ppid:2 task_flags:0x200040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 ksm_scan_thread+0x38e/0x4b0 mm/ksm.c:2693 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 task:khugepaged state:S stack:29288 pid:38 tgid:38 ppid:2 task_flags:0x200040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929 __schedule_loop kernel/sched/core.c:7011 [inline] schedule+0x165/0x360 kernel/sched/core.c:7026 khugepaged_wait_work mm/khugepaged.c:2598 [inline] khugepaged+0x13bb/0x16a0 mm/khugepaged.c:2610 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 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:30344 pid:39 tgid:39 ppid:2 task_flags:0x4208060 flags:0x00080000 Call Trace: