rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 0-...0: (1 GPs behind) idle=5de4/1/0x4000000000000000 softirq=49026/49027 fqs=5128 rcu: hardirqs softirqs csw/system rcu: number: 0 0 0 rcu: cputime: 0 0 0 ==> 52500(ms) rcu: (detected by 1, t=10502 jiffies, g=35889, q=442707 ncpus=2) Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 2846 Comm: acpid Not tainted 6.12.0-rc6-syzkaller-00143-gaa03bda68af7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:io_serial_out+0x8f/0xb0 drivers/tty/serial/8250/8250_port.c:413 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 c3 cc cc cc cc e8 11 e5 0d ff eb a0 e8 9a e5 0d RSP: 0018:ffffc90000006f58 EFLAGS: 00000002 RAX: 000000000000005b RBX: 00000000000003f8 RCX: 0000000000000000 RDX: 00000000000003f8 RSI: ffffffff82a096d5 RDI: ffffffff936336a0 RBP: ffffffff93633660 R08: 0000000000000001 R09: 000000000000001f R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 000000000000005b R14: ffffffff82a09670 R15: 0000000000000000 FS: 00007f31b31af740(0000) GS:ffff8881f5800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055dbf5bbce28 CR3: 0000000116e40000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: serial_out drivers/tty/serial/8250/8250.h:142 [inline] serial8250_console_fifo_write drivers/tty/serial/8250/8250_port.c:3322 [inline] serial8250_console_write+0xf9e/0x17c0 drivers/tty/serial/8250/8250_port.c:3393 console_emit_next_record kernel/printk/printk.c:3092 [inline] console_flush_all+0x800/0xc60 kernel/printk/printk.c:3180 __console_flush_and_unlock kernel/printk/printk.c:3239 [inline] console_unlock+0xd9/0x210 kernel/printk/printk.c:3279 vprintk_emit+0x424/0x6f0 kernel/printk/printk.c:2407 vprintk+0x7f/0xa0 kernel/printk/printk_safe.c:68 _printk+0xc8/0x100 kernel/printk/printk.c:2432 printk_stack_address arch/x86/kernel/dumpstack.c:72 [inline] show_trace_log_lvl+0x1b7/0x3d0 arch/x86/kernel/dumpstack.c:285 sched_show_task kernel/sched/core.c:7604 [inline] sched_show_task+0x3f0/0x5f0 kernel/sched/core.c:7579 show_state_filter+0xee/0x320 kernel/sched/core.c:7649 k_spec drivers/tty/vt/keyboard.c:667 [inline] k_spec+0xed/0x150 drivers/tty/vt/keyboard.c:656 kbd_keycode drivers/tty/vt/keyboard.c:1522 [inline] kbd_event+0xcbd/0x17a0 drivers/tty/vt/keyboard.c:1541 input_handle_events_default+0x116/0x1b0 drivers/input/input.c:2641 input_pass_values+0x738/0x880 drivers/input/input.c:126 input_event_dispose drivers/input/input.c:352 [inline] input_handle_event+0xb30/0x14d0 drivers/input/input.c:369 input_event drivers/input/input.c:398 [inline] input_event+0x83/0xa0 drivers/input/input.c:390 hidinput_hid_event+0xa12/0x2410 drivers/hid/hid-input.c:1719 hid_process_event+0x4b7/0x5e0 drivers/hid/hid-core.c:1540 hid_input_array_field+0x535/0x710 drivers/hid/hid-core.c:1652 hid_process_report drivers/hid/hid-core.c:1694 [inline] hid_report_raw_event+0xa02/0x11c0 drivers/hid/hid-core.c:2040 __hid_input_report.constprop.0+0x341/0x440 drivers/hid/hid-core.c:2110 hid_irq_in+0x35e/0x870 drivers/hid/usbhid/hid-core.c:285 __usb_hcd_giveback_urb+0x389/0x6e0 drivers/usb/core/hcd.c:1650 usb_hcd_giveback_urb+0x396/0x450 drivers/usb/core/hcd.c:1734 dummy_timer+0x17f0/0x3930 drivers/usb/gadget/udc/dummy_hcd.c:1993 __run_hrtimer kernel/time/hrtimer.c:1691 [inline] __hrtimer_run_queues+0x20a/0xae0 kernel/time/hrtimer.c:1755 hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1772 handle_softirqs+0x206/0x8d0 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu kernel/softirq.c:637 [inline] irq_exit_rcu+0xac/0x110 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:lock_acquire.part.0+0x155/0x380 kernel/locking/lockdep.c:5790 Code: b8 ff ff ff ff 65 0f c1 05 90 1f cf 7e 83 f8 01 0f 85 d0 01 00 00 9c 58 f6 c4 02 0f 85 e5 01 00 00 48 85 ed 0f 85 b6 01 00 00 <48> b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 00 00 00 48 c7 RSP: 0018:ffffc9000182fa68 EFLAGS: 00000206 RAX: 0000000000000046 RBX: 1ffff92000305f4e RCX: 0000000000000001 RDX: 0000000000000001 RSI: ffffffff8727f520 RDI: ffffffff8746ec80 RBP: 0000000000000200 R08: 0000000000000000 R09: fffffbfff1f559b4 R10: ffffffff8faacda7 R11: 0000000000000000 R12: 0000000000000000 R13: ffffffff88ebb140 R14: 0000000000000000 R15: 0000000000000000 rcu_lock_acquire include/linux/rcupdate.h:337 [inline] rcu_read_lock include/linux/rcupdate.h:849 [inline] core_sys_select+0xfe/0xb80 fs/select.c:638 do_pselect.constprop.0+0x1a0/0x1f0 fs/select.c:760 __do_sys_pselect6 fs/select.c:803 [inline] __se_sys_pselect6 fs/select.c:794 [inline] __x64_sys_pselect6+0x183/0x240 fs/select.c:794 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f31b327e591 Code: 89 44 24 20 4c 8d 64 24 20 48 89 54 24 28 64 8b 04 25 18 00 00 00 85 c0 75 2d 45 31 c9 4d 89 e0 4c 89 f2 b8 0e 01 00 00 0f 05 <48> 89 c3 48 3d 00 f0 ff ff 76 69 48 8b 05 65 58 0d 00 f7 db 64 89 RSP: 002b:00007ffe260838c0 EFLAGS: 00000246 ORIG_RAX: 000000000000010e RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f31b327e591 RDX: 0000000000000000 RSI: 00007ffe260839b8 RDI: 000000000000000b RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000555ad8848178 R14: 0000000000000000 R15: 000000000000000a task:kworker/u8:3 state:R running task stack:28784 pid:12505 tgid:12505 ppid:46 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6869 __cond_resched+0x1b/0x30 kernel/sched/core.c:7214 _cond_resched include/linux/sched.h:2031 [inline] stop_one_cpu+0x112/0x190 kernel/stop_machine.c:151 sched_exec+0x1dc/0x270 kernel/sched/core.c:5459 bprm_execve fs/exec.c:1838 [inline] bprm_execve+0x46c/0x1950 fs/exec.c:1821 kernel_execve+0x2ef/0x3b0 fs/exec.c:2012 call_usermodehelper_exec_async+0x255/0x4c0 kernel/umh.c:110 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 task:modprobe state:R running task stack:24720 pid:12512 tgid:12512 ppid:1591 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 trace_ma_write+0x187/0x200 include/trace/events/maple_tree.h:80 task:modprobe state:Z stack:25344 pid:12516 tgid:12516 ppid:0 flags:0x00004002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 do_task_dead+0xd6/0x110 kernel/sched/core.c:6706 do_exit+0x1de7/0x2ce0 kernel/exit.c:990 do_group_exit+0xd3/0x2a0 kernel/exit.c:1088 __do_sys_exit_group kernel/exit.c:1099 [inline] __se_sys_exit_group kernel/exit.c:1097 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1097 x64_sys_call+0x14a9/0x16a0 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f58d49e0a90 RSP: 002b:00007fffba25b378 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f58d4ad1860 RCX: 00007f58d49e0a90 RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001 RBP: 00007f58d4ad1860 R08: 0000000000000001 R09: 7d64efd783c216a8 R10: 00007fffba25b230 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f58d4ad5658 R15: 0000000000000001 task:kworker/u8:0 state:R running task stack:32568 pid:12521 tgid:12521 ppid:11 flags:0x00004000 Call Trace: __switch_to_asm+0x70/0x70 task:modprobe state:R running task stack:25424 pid:12522 tgid:12522 ppid:37 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 do_task_dead+0xd6/0x110 kernel/sched/core.c:6706 do_exit+0x1de7/0x2ce0 kernel/exit.c:990 do_group_exit+0xd3/0x2a0 kernel/exit.c:1088 __do_sys_exit_group kernel/exit.c:1099 [inline] __se_sys_exit_group kernel/exit.c:1097 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1097 x64_sys_call+0x14a9/0x16a0 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f56f4db9a90 RSP: 002b:00007ffc6c8592b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f56f4eaa860 RCX: 00007f56f4db9a90 RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001 RBP: 00007f56f4eaa860 R08: 0000000000000001 R09: ab73a96fd4a73125 R10: 00007ffc6c859170 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f56f4eae658 R15: 0000000000000001 task:kworker/u8:6 state:R running task stack:32568 pid:12526 tgid:12526 ppid:1591 flags:0x00004000 Call Trace: task:kworker/u8:1 state:R running task stack:32568 pid:12528 tgid:12528 ppid:28 flags:0x00004000 Call Trace: __switch_to_asm+0x70/0x70 task:modprobe state:R running task stack:24720 pid:12529 tgid:12529 ppid:46 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 __do_sys_exit_group kernel/exit.c:1099 [inline] __se_sys_exit_group kernel/exit.c:1097 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1097 task:kworker/u8:2 state:R running task stack:28784 pid:12530 tgid:12530 ppid:37 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6869 __cond_resched+0x1b/0x30 kernel/sched/core.c:7214 _cond_resched include/linux/sched.h:2031 [inline] stop_one_cpu+0x112/0x190 kernel/stop_machine.c:151 task:modprobe state:R running task stack:25424 pid:12534 tgid:12534 ppid:11 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 task:kworker/u8:6 state:R running task stack:32568 pid:12535 tgid:12535 ppid:1591 flags:0x00004000 Call Trace: __switch_to_asm+0x70/0x70 task:modprobe state:R running task stack:25424 pid:12539 tgid:12539 ppid:1688 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 task:kworker/u8:2 state:R running task stack:32568 pid:12540 tgid:12540 ppid:37 flags:0x00004000 Call Trace: __switch_to_asm+0x70/0x70 task:modprobe state:R running task stack:25424 pid:12542 tgid:12542 ppid:28 flags:0x00004002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 do_task_dead+0xd6/0x110 kernel/sched/core.c:6706 do_exit+0x1de7/0x2ce0 kernel/exit.c:990 do_group_exit+0xd3/0x2a0 kernel/exit.c:1088 __do_sys_exit_group kernel/exit.c:1099 [inline] __se_sys_exit_group kernel/exit.c:1097 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1097 x64_sys_call+0x14a9/0x16a0 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0ca822ea90 RSP: 002b:00007ffc7ada8468 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f0ca831f860 RCX: 00007f0ca822ea90 RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001 RBP: 00007f0ca831f860 R08: 0000000000000001 R09: bfc89b1ae6762482 R10: 00007ffc7ada8320 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f0ca8323658 R15: 0000000000000001 task:kworker/u8:0 state:R running task stack:32568 pid:12544 tgid:12544 ppid:11 flags:0x00004000 Call Trace: __switch_to_asm+0x70/0x70 task:modprobe state:R running task stack:25424 pid:12548 tgid:12548 ppid:1688 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 task:kworker/u8:6 state:R running task stack:28784 pid:12549 tgid:12549 ppid:1591 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6869 __cond_resched+0x1b/0x30 kernel/sched/core.c:7214 _cond_resched include/linux/sched.h:2031 [inline] stop_one_cpu+0x112/0x190 kernel/stop_machine.c:151 sched_exec+0x1dc/0x270 kernel/sched/core.c:5459 bprm_execve fs/exec.c:1838 [inline] bprm_execve+0x46c/0x1950 fs/exec.c:1821 task:kworker/u8:8 state:R running task stack:32568 pid:12552 tgid:12552 ppid:1688 flags:0x00004000 Call Trace: __switch_to_asm+0x70/0x70 task:modprobe state:R running task stack:25424 pid:12554 tgid:12554 ppid:11 flags:0x00000002 Call Trace: task:kworker/u8:2 state:R running task stack:28784 pid:12555 tgid:12555 ppid:37 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 task:kworker/u8:0 state:R running task stack:32568 pid:12560 tgid:12560 ppid:11 flags:0x00004000 Call Trace: __switch_to_asm+0x70/0x70 task:kworker/u8:8 state:R running task stack:32568 pid:12562 tgid:12562 ppid:1688 flags:0x00004000 Call Trace: __switch_to_asm+0x70/0x70 task:modprobe state:R running task stack:25424 pid:12563 tgid:12563 ppid:28 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 __pfx_down_write+0x10/0x10 task:modprobe state:R running task stack:24000 pid:12566 tgid:12566 ppid:37 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 __do_sys_exit_group kernel/exit.c:1099 [inline] __se_sys_exit_group kernel/exit.c:1097 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1097 task:modprobe state:R running task stack:24720 pid:12567 tgid:12567 ppid:28 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 do_task_dead+0xd6/0x110 kernel/sched/core.c:6706 do_exit+0x1de7/0x2ce0 kernel/exit.c:990 do_group_exit+0xd3/0x2a0 kernel/exit.c:1088 __do_sys_exit_group kernel/exit.c:1099 [inline] __se_sys_exit_group kernel/exit.c:1097 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1097 x64_sys_call+0x14a9/0x16a0 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0c303cba90 RSP: 002b:00007ffd972e09a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f0c304bc860 RCX: 00007f0c303cba90 RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001 RBP: 00007f0c304bc860 R08: 0000000000000001 R09: aa35d97bb076bf0e R10: 00007ffd972e0860 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f0c304c0658 R15: 0000000000000001 task:modprobe state:R running task stack:24720 pid:12572 tgid:12572 ppid:11 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 do_task_dead+0xd6/0x110 kernel/sched/core.c:6706 do_exit+0x1de7/0x2ce0 kernel/exit.c:990 do_group_exit+0xd3/0x2a0 kernel/exit.c:1088 __do_sys_exit_group kernel/exit.c:1099 [inline] __se_sys_exit_group kernel/exit.c:1097 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1097 x64_sys_call+0x14a9/0x16a0 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7feb0420ca90 RSP: 002b:00007ffcb743f438 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007feb042fd860 RCX: 00007feb0420ca90 RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001 RBP: 00007feb042fd860 R08: 0000000000000001 R09: 8901b4b83a3c80e4 R10: 00007ffcb743f2f0 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007feb04301658 R15: 0000000000000001 task:modprobe state:R running task stack:26144 pid:12578 tgid:12578 ppid:37 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6869 __cond_resched+0x1b/0x30 kernel/sched/core.c:7214 mark_lock+0xb5/0xc60 kernel/locking/lockdep.c:4703 task:modprobe state:R running task stack:24000 pid:12585 tgid:12585 ppid:11 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 __do_sys_exit_group kernel/exit.c:1099 [inline] __se_sys_exit_group kernel/exit.c:1097 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1097 task:modprobe state:R running task stack:24720 pid:12586 tgid:12586 ppid:37 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 task:modprobe state:R running task stack:24720 pid:12593 tgid:12593 ppid:11 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 do_task_dead+0xd6/0x110 kernel/sched/core.c:6706 do_exit+0x1de7/0x2ce0 kernel/exit.c:990 do_group_exit+0xd3/0x2a0 kernel/exit.c:1088 __do_sys_exit_group kernel/exit.c:1099 [inline] __se_sys_exit_group kernel/exit.c:1097 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1097 x64_sys_call+0x14a9/0x16a0 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff2970b1a90 RSP: 002b:00007ffe02ed4808 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007ff2971a2860 RCX: 00007ff2970b1a90 RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001 RBP: 00007ff2971a2860 R08: 0000000000000001 R09: 8319cb0040b19ada R10: 00007ffe02ed46c0 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007ff2971a6658 R15: 0000000000000001 task:modprobe state:R running task stack:25424 pid:12597 tgid:12597 ppid:11 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 do_task_dead+0xd6/0x110 kernel/sched/core.c:6706 do_exit+0x1de7/0x2ce0 kernel/exit.c:990 do_group_exit+0xd3/0x2a0 kernel/exit.c:1088 __do_sys_exit_group kernel/exit.c:1099 [inline] __se_sys_exit_group kernel/exit.c:1097 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1097 x64_sys_call+0x14a9/0x16a0 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ffbfe20ba90 RSP: 002b:00007ffd9a7e8188 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007ffbfe2fc860 RCX: 00007ffbfe20ba90 RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001 RBP: 00007ffbfe2fc860 R08: 0000000000000001 R09: c653a86a288ffa61 R10: 00007ffd9a7e8040 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007ffbfe300658 R15: 0000000000000001 task:modprobe state:R running task stack:25424 pid:12603 tgid:12603 ppid:1591 flags:0x00000002 Call Trace: task:modprobe state:R running task stack:25424 pid:12605 tgid:12605 ppid:11 flags:0x00000002 Call Trace: task:modprobe state:R running task stack:24720 pid:12609 tgid:12609 ppid:11 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 task:modprobe state:R running task stack:25424 pid:12613 tgid:12613 ppid:11 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 task:modprobe state:R running task stack:25424 pid:12619 tgid:12619 ppid:1591 flags:0x00000002 Call Trace: task:modprobe state:R running task stack:25424 pid:12628 tgid:12628 ppid:37 flags:0x00000002 Call Trace: task:modprobe state:R running task stack:25424 pid:12636 tgid:12636 ppid:37 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 task:modprobe state:R running task stack:24720 pid:12644 tgid:12644 ppid:1591 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 __do_sys_exit_group kernel/exit.c:1099 [inline] __se_sys_exit_group kernel/exit.c:1097 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1097 task:modprobe state:R running task stack:25424 pid:12646 tgid:12646 ppid:37 flags:0x00000002 Call Trace: task:modprobe state:R running task stack:25424 pid:12648 tgid:12648 ppid:11 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 __schedule_loop kernel/sched/core.c:6767 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6782 exit_to_user_mode_loop kernel/entry/common.c:102 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0xec/0x260 kernel/entry/common.c:218 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fec800c6a90 RSP: 002b:00007ffde650ccc8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007fec801b7860 RCX: 00007fec800c6a90 RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001 RBP: 00007fec801b7860 R08: 0000000000000001 R09: a35948e4977f3d61 R10: 00007ffde650cb80 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007fec801bb658 R15: 0000000000000001 task:modprobe state:R running task stack:24000 pid:12651 tgid:12651 ppid:28 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 task:modprobe state:R running task stack:25424 pid:12655 tgid:12655 ppid:28 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 do_task_dead+0xd6/0x110 kernel/sched/core.c:6706 do_exit+0x1de7/0x2ce0 kernel/exit.c:990 do_group_exit+0xd3/0x2a0 kernel/exit.c:1088 __do_sys_exit_group kernel/exit.c:1099 [inline] __se_sys_exit_group kernel/exit.c:1097 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1097 x64_sys_call+0x14a9/0x16a0 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f961fac8a90 RSP: 002b:00007ffcd40c1e48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f961fbb9860 RCX: 00007f961fac8a90 RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001 RBP: 00007f961fbb9860 R08: 0000000000000001 R09: 0b08c0597f57da92 R10: 00007ffcd40c1d00 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f961fbbd658 R15: 0000000000000001 task:modprobe state:R running task stack:24720 pid:12660 tgid:12660 ppid:37 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 task:modprobe state:R running task stack:25424 pid:12662 tgid:12662 ppid:1591 flags:0x00004002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 do_task_dead+0xd6/0x110 kernel/sched/core.c:6706 do_exit+0x1de7/0x2ce0 kernel/exit.c:990 do_group_exit+0xd3/0x2a0 kernel/exit.c:1088 __do_sys_exit_group kernel/exit.c:1099 [inline] __se_sys_exit_group kernel/exit.c:1097 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1097 x64_sys_call+0x14a9/0x16a0 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0d7a36fa90 RSP: 002b:00007ffec1792138 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f0d7a460860 RCX: 00007f0d7a36fa90 RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001 RBP: 00007f0d7a460860 R08: 0000000000000001 R09: 2d361fec6501d6e0 R10: 00007ffec1791ff0 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f0d7a464658 R15: 0000000000000001 task:modprobe state:R running task stack:25136 pid:12667 tgid:12667 ppid:28 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 do_task_dead+0xd6/0x110 kernel/sched/core.c:6706 do_exit+0x1de7/0x2ce0 kernel/exit.c:990 do_group_exit+0xd3/0x2a0 kernel/exit.c:1088 __do_sys_exit_group kernel/exit.c:1099 [inline] __se_sys_exit_group kernel/exit.c:1097 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1097 x64_sys_call+0x14a9/0x16a0 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7efeb876ea90 RSP: 002b:00007ffdc9cbf948 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007efeb885f860 RCX: 00007efeb876ea90 RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001 RBP: 00007efeb885f860 R08: 0000000000000001 R09: 8c058807c2dcafe1 R10: 00007ffdc9cbf800 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007efeb8863658 R15: 0000000000000001 task:modprobe state:R running task stack:24720 pid:12672 tgid:12672 ppid:11 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 __pfx_lock_release+0x10/0x10 kernel/locking/lockdep.c:5346 task:modprobe state:R running task stack:25424 pid:12675 tgid:12675 ppid:28 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 task:modprobe state:R running task stack:25424 pid:12679 tgid:12679 ppid:28 flags:0x00000002 Call Trace: task:modprobe state:R running task stack:25424 pid:12682 tgid:12682 ppid:1591 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6869 __cond_resched+0x1b/0x30 kernel/sched/core.c:7214 task:modprobe state:R running task stack:25136 pid:12686 tgid:12686 ppid:1591 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 task:modprobe state:R running task stack:24720 pid:12690 tgid:12690 ppid:1591 flags:0x00000002 Call Trace: task:modprobe state:R running task stack:24720 pid:12693 tgid:12693 ppid:11 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 __pfx_lock_release+0x10/0x10 kernel/locking/lockdep.c:5346 task:modprobe state:R running task stack:24720 pid:12695 tgid:12695 ppid:28 flags:0x00000002 Call Trace: task:modprobe state:R running task stack:25424 pid:12699 tgid:12699 ppid:37 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 do_task_dead+0xd6/0x110 kernel/sched/core.c:6706 do_exit+0x1de7/0x2ce0 kernel/exit.c:990 do_group_exit+0xd3/0x2a0 kernel/exit.c:1088 __do_sys_exit_group kernel/exit.c:1099 [inline] __se_sys_exit_group kernel/exit.c:1097 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1097 x64_sys_call+0x14a9/0x16a0 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff7abe0da90 RSP: 002b:00007ffd84640b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007ff7abefe860 RCX: 00007ff7abe0da90 RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001 RBP: 00007ff7abefe860 R08: 0000000000000001 R09: d20e6b049a03eaee R10: 00007ffd84640a20 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007ff7abf02658 R15: 0000000000000001 task:kworker/u8:1 state:R running task stack:32568 pid:12700 tgid:12700 ppid:28 flags:0x00004000 Call Trace: __switch_to_asm+0x70/0x70 task:modprobe state:R running task stack:25424 pid:12704 tgid:12704 ppid:11 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 do_task_dead+0xd6/0x110 kernel/sched/core.c:6706 do_exit+0x1de7/0x2ce0 kernel/exit.c:990 do_group_exit+0xd3/0x2a0 kernel/exit.c:1088 __do_sys_exit_group kernel/exit.c:1099 [inline] __se_sys_exit_group kernel/exit.c:1097 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1097 x64_sys_call+0x14a9/0x16a0 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe1eb4a2a90 RSP: 002b:00007ffe347006b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007fe1eb593860 RCX: 00007fe1eb4a2a90 RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001 RBP: 00007fe1eb593860 R08: 0000000000000001 R09: 5e068f2ab54c702e R10: 00007ffe34700570 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007fe1eb597658 R15: 0000000000000001 task:modprobe state:R running task stack:25424 pid:12708 tgid:12708 ppid:1591 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 do_task_dead+0xd6/0x110 kernel/sched/core.c:6706 do_exit+0x1de7/0x2ce0 kernel/exit.c:990 do_group_exit+0xd3/0x2a0 kernel/exit.c:1088 __do_sys_exit_group kernel/exit.c:1099 [inline] __se_sys_exit_group kernel/exit.c:1097 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1097 x64_sys_call+0x14a9/0x16a0 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd7e6a61a90 RSP: 002b:00007ffde46d7948 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007fd7e6b52860 RCX: 00007fd7e6a61a90 RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001 RBP: 00007fd7e6b52860 R08: 0000000000000001 R09: b7e2d21cf8727b80 R10: 00007ffde46d7800 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007fd7e6b56658 R15: 0000000000000001 task:modprobe state:R running task stack:25424 pid:12713 tgid:12713 ppid:1688 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 task:modprobe state:R running task stack:24000 pid:12718 tgid:12718 ppid:37 flags:0x00000002 Call Trace: task:modprobe state:R running task stack:24720 pid:12723 tgid:12723 ppid:11 flags:0x00004002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 do_task_dead+0xd6/0x110 kernel/sched/core.c:6706 do_exit+0x1de7/0x2ce0 kernel/exit.c:990 do_group_exit+0xd3/0x2a0 kernel/exit.c:1088 __do_sys_exit_group kernel/exit.c:1099 [inline] __se_sys_exit_group kernel/exit.c:1097 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1097 x64_sys_call+0x14a9/0x16a0 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fcc8b8c7a90 RSP: 002b:00007ffc2e8a7048 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007fcc8b9b8860 RCX: 00007fcc8b8c7a90 RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001 RBP: 00007fcc8b9b8860 R08: 0000000000000001 R09: 7b049266c0518a29 R10: 00007ffc2e8a6f00 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007fcc8b9bc658 R15: 0000000000000001 task:modprobe state:R running task stack:25424 pid:12728 tgid:12728 ppid:1591 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 do_task_dead+0xd6/0x110 kernel/sched/core.c:6706 do_exit+0x1de7/0x2ce0 kernel/exit.c:990 do_group_exit+0xd3/0x2a0 kernel/exit.c:1088 __do_sys_exit_group kernel/exit.c:1099 [inline] __se_sys_exit_group kernel/exit.c:1097 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1097 x64_sys_call+0x14a9/0x16a0 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe28084ba90 RSP: 002b:00007ffc26e139a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007fe28093c860 RCX: 00007fe28084ba90 RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001 RBP: 00007fe28093c860 R08: 0000000000000001 R09: b7fd9dde7322a203 R10: 00007ffc26e13860 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007fe280940658 R15: 0000000000000001 task:kworker/u8:2 state:R running task stack:32568 pid:12730 tgid:12730 ppid:37 flags:0x00004000 Call Trace: __switch_to_asm+0x70/0x70 task:modprobe state:R running task stack:25424 pid:12734 tgid:12734 ppid:28 flags:0x00000002 Call Trace: task:modprobe state:R running task stack:25424 pid:12736 tgid:12736 ppid:1591 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 instrument_atomic_read include/linux/instrumented.h:68 [inline] _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline] hlock_class+0x4e/0x130 kernel/locking/lockdep.c:228 task:modprobe state:R running task stack:24720 pid:12744 tgid:12744 ppid:1591 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 do_task_dead+0xd6/0x110 kernel/sched/core.c:6706 do_exit+0x1de7/0x2ce0 kernel/exit.c:990 do_group_exit+0xd3/0x2a0 kernel/exit.c:1088 __do_sys_exit_group kernel/exit.c:1099 [inline] __se_sys_exit_group kernel/exit.c:1097 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1097 x64_sys_call+0x14a9/0x16a0 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f08cbfa6a90 RSP: 002b:00007ffef7b36cb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f08cc097860 RCX: 00007f08cbfa6a90 RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001 RBP: 00007f08cc097860 R08: 0000000000000001 R09: 2cd6599af4c95b76 R10: 00007ffef7b36b70 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f08cc09b658 R15: 0000000000000001 task:modprobe state:R running task stack:24000 pid:12750 tgid:12750 ppid:28 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 task:modprobe state:R running task stack:25136 pid:12754 tgid:12754 ppid:28 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 task:modprobe state:R running task stack:24000 pid:12760 tgid:12760 ppid:1688 flags:0x00000002 Call Trace: task:modprobe state:R running task stack:24720 pid:12763 tgid:12763 ppid:28 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5328 [inline] __schedule+0x1042/0x34b0 kernel/sched/core.c:6690 preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6869