rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...0: (1 GPs behind) idle=8b1c/1/0x4000000000000000 softirq=32505/32506 fqs=1658
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=25121, q=348071 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 2833 Comm: klogd Not tainted 6.13.0-rc4-syzkaller-00076-gf097a36ef88d #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:416
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 31 29 0c ff eb a0 e8 ba 29 0c
RSP: 0018:ffffc90000007390 EFLAGS: 00000002
RAX: 0000000000000020 RBX: 00000000000003f8 RCX: 0000000000000000
RDX: 00000000000003f8 RSI: ffffffff82a90575 RDI: ffffffff93643920
RBP: ffffffff936438e0 R08: 0000000000000001 R09: 000000000000001f
R10: 0000000000000000 R11: 0000000000000009 R12: 0000000000000000
R13: 0000000000000020 R14: ffffffff82a90510 R15: 0000000000000000
FS:  00007f98df89a380(0000) GS:ffff8881f5800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffde4360d10 CR3: 0000000116606000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 serial_out drivers/tty/serial/8250/8250.h:142 [inline]
 serial8250_console_fifo_write drivers/tty/serial/8250/8250_port.c:3342 [inline]
 serial8250_console_write+0xf9e/0x17c0 drivers/tty/serial/8250/8250_port.c:3413
 console_emit_next_record kernel/printk/printk.c:3122 [inline]
 console_flush_all+0x800/0xc60 kernel/printk/printk.c:3210
 __console_flush_and_unlock kernel/printk/printk.c:3269 [inline]
 console_unlock+0xd9/0x210 kernel/printk/printk.c:3309
 vprintk_emit+0x424/0x6f0 kernel/printk/printk.c:2432
 vprintk+0x7f/0xa0 kernel/printk/printk_safe.c:86
 _printk+0xc8/0x100 kernel/printk/printk.c:2457
 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:7711 [inline]
 sched_show_task+0x3f0/0x5f0 kernel/sched/core.c:7686
 show_state_filter+0xee/0x320 kernel/sched/core.c:7756
 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:2646
 input_pass_values+0x738/0x880 drivers/input/input.c:126
 input_event_dispose drivers/input/input.c:341 [inline]
 input_handle_event+0xf0b/0x14d0 drivers/input/input.c:369
 input_repeat_key+0x251/0x340 drivers/input/input.c:2321
 call_timer_fn+0x1a0/0x610 kernel/time/timer.c:1793
 expire_timers kernel/time/timer.c:1844 [inline]
 __run_timers+0x6e8/0x930 kernel/time/timer.c:2418
 __run_timer_base kernel/time/timer.c:2430 [inline]
 __run_timer_base kernel/time/timer.c:2422 [inline]
 run_timer_base+0x114/0x190 kernel/time/timer.c:2439
 run_timer_softirq+0x1a/0x40 kernel/time/timer.c:2449
 handle_softirqs+0x206/0x8d0 kernel/softirq.c:561
 __do_softirq kernel/softirq.c:595 [inline]
 invoke_softirq kernel/softirq.c:435 [inline]
 __irq_exit_rcu+0xfa/0x160 kernel/softirq.c:662
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:678
 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
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:syscall_enter_from_user_mode_work include/linux/entry-common.h:166 [inline]
RIP: 0010:syscall_enter_from_user_mode include/linux/entry-common.h:199 [inline]
RIP: 0010:do_syscall_64+0x9a/0x250 arch/x86/entry/common.c:79
Code: 00 48 8b 7d 08 e8 f6 44 00 00 0f 1f 44 00 00 0f 1f 44 00 00 90 e8 76 51 72 fa 90 90 e8 ff 52 72 fa fb 65 48 8b 05 66 0e 13 79 <48> 8b 50 08 f6 c2 3f 0f 85 3c 01 00 00 90 90 41 81 fc d2 01 00 00
RSP: 0018:ffffc90004d1ff28 EFLAGS: 00000206
RAX: ffff8881166457c0 RBX: ffffc90004d1ff58 RCX: 1ffffffff14aba71
RDX: 0000000000000000 RSI: ffffffff8727fee0 RDI: ffffffff874735a0
RBP: ffffc90004d1ff48 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8a560c97 R11: 0000000000000000 R12: 000000000000002c
R13: 000000000000002c R14: 0000000000000000 R15: 0000000000000000
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f98df9fc9b5
Code: 8b 44 24 08 48 83 c4 28 48 98 c3 48 98 c3 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 26 45 31 c9 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 7a 48 8b 15 44 c4 0c 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffea060daf8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f98df9fc9b5
RDX: 000000000000008c RSI: 0000565247f8efc0 RDI: 0000000000000003
RBP: 0000565247f882c0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000013
R13: 00007f98dfb8a212 R14: 00007ffea060dbf8 R15: 0000000000000000
 </TASK>
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9594  tgid:9594  ppid:46     flags:0x00000002
Call Trace:
 <TASK>
 </TASK>
task:modprobe        state:R  running task     stack:24752 pid:9601  tgid:9601  ppid:11     flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6848
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9602  tgid:9602  ppid:46     flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9609  tgid:9609  ppid:1169   flags:0x00000002
Call Trace:
 <TASK>
 </TASK>
task:modprobe        state:R  running task     stack:24752 pid:9611  tgid:9611  ppid:1168   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 do_task_dead+0xd6/0x110 kernel/sched/core.c:6772
 do_exit+0x1de2/0x2ce0 kernel/exit.c:989
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
 __do_sys_exit_group kernel/exit.c:1098 [inline]
 __se_sys_exit_group kernel/exit.c:1096 [inline]
 __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1096
 x64_sys_call+0x151f/0x1720 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: 0033:0x7f4f0c737a90
RSP: 002b:00007ffef966c918 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f4f0c828860 RCX: 00007f4f0c737a90
RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001
RBP: 00007f4f0c828860 R08: 0000000000000001 R09: 57052ea7dee3c997
R10: 00007ffef966c7d0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f4f0c82c658 R15: 0000000000000001
 </TASK>
task:modprobe        state:R  running task     stack:24752 pid:9616  tgid:9616  ppid:46     flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9621  tgid:9621  ppid:1169   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 do_task_dead+0xd6/0x110 kernel/sched/core.c:6772
 do_exit+0x1de2/0x2ce0 kernel/exit.c:989
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
 __do_sys_exit_group kernel/exit.c:1098 [inline]
 __se_sys_exit_group kernel/exit.c:1096 [inline]
 __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1096
 x64_sys_call+0x151f/0x1720 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: 0033:0x7f442ff29a90
RSP: 002b:00007fff16b94028 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f443001a860 RCX: 00007f442ff29a90
RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001
RBP: 00007f443001a860 R08: 0000000000000001 R09: 0d50efbb63541a6c
R10: 00007fff16b93ee0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f443001e658 R15: 0000000000000001
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9627  tgid:9627  ppid:1168   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 do_task_dead+0xd6/0x110 kernel/sched/core.c:6772
 do_exit+0x1de2/0x2ce0 kernel/exit.c:989
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
 __do_sys_exit_group kernel/exit.c:1098 [inline]
 __se_sys_exit_group kernel/exit.c:1096 [inline]
 __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1096
 x64_sys_call+0x151f/0x1720 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: 0033:0x7fcb7dad8a90
RSP: 002b:00007ffdc6906338 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007fcb7dbc9860 RCX: 00007fcb7dad8a90
RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001
RBP: 00007fcb7dbc9860 R08: 0000000000000001 R09: 0c0de22157a7617a
R10: 00007ffdc69061f0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fcb7dbcd658 R15: 0000000000000001
 </TASK>
task:modprobe        state:R  running task     stack:24752 pid:9631  tgid:9631  ppid:46     flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 do_task_dead+0xd6/0x110 kernel/sched/core.c:6772
 do_exit+0x1de2/0x2ce0 kernel/exit.c:989
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
 __do_sys_exit_group kernel/exit.c:1098 [inline]
 __se_sys_exit_group kernel/exit.c:1096 [inline]
 __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1096
 x64_sys_call+0x151f/0x1720 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: 0033:0x7f3771015a90
RSP: 002b:00007ffdc8215418 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f3771106860 RCX: 00007f3771015a90
RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001
RBP: 00007f3771106860 R08: 0000000000000001 R09: 49ee88bb5a81cd95
R10: 00007ffdc82152d0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f377110a658 R15: 0000000000000001
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9637  tgid:9637  ppid:1169   flags:0x00000002
Call Trace:
 <TASK>
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9645  tgid:9645  ppid:11     flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9649  tgid:9649  ppid:1169   flags:0x00004002
Call Trace:
 <TASK>
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9657  tgid:9657  ppid:46     flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6935
 __cond_resched+0x1b/0x30 kernel/sched/core.c:7280
 _cond_resched include/linux/sched.h:2056 [inline]
 task_work_run+0x16e/0x250 kernel/task_work.c:241
 do_exit+0x1de2/0x2ce0 kernel/exit.c:989
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
 __do_sys_exit_group kernel/exit.c:1098 [inline]
 __se_sys_exit_group kernel/exit.c:1096 [inline]
 __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1096
 x64_sys_call+0x151f/0x1720 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: 0033:0x7f1da1ea8a90
RSP: 002b:00007ffcd4ed8d28 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f1da1f99860 RCX: 00007f1da1ea8a90
RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001
RBP: 00007f1da1f99860 R08: 0000000000000001 R09: fc378b18556cd80b
R10: 00007ffcd4ed8be0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f1da1f9d658 R15: 0000000000000001
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9663  tgid:9663  ppid:46     flags:0x00000002
Call Trace:
 <TASK>
 </TASK>
task:modprobe        state:R  running task     stack:24752 pid:9669  tgid:9669  ppid:1169   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9674  tgid:9674  ppid:1169   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 do_task_dead+0xd6/0x110 kernel/sched/core.c:6772
 do_exit+0x1de2/0x2ce0 kernel/exit.c:989
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
 __do_sys_exit_group kernel/exit.c:1098 [inline]
 __se_sys_exit_group kernel/exit.c:1096 [inline]
 __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1096
 x64_sys_call+0x151f/0x1720 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: 0033:0x7f4b9e695a90
RSP: 002b:00007ffc7961fd78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f4b9e786860 RCX: 00007f4b9e695a90
RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001
RBP: 00007f4b9e786860 R08: 0000000000000001 R09: 99d2eddaba5ca48b
R10: 00007ffc7961fc30 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f4b9e78a658 R15: 0000000000000001
 </TASK>
task:modprobe        state:R  running task     stack:24752 pid:9679  tgid:9679  ppid:46     flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 __pfx_lock_release+0x10/0x10 kernel/locking/lockdep.c:5370
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9682  tgid:9682  ppid:1169   flags:0x00000002
Call Trace:
 <TASK>
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9689  tgid:9689  ppid:11     flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 do_task_dead+0xd6/0x110 kernel/sched/core.c:6772
 do_exit+0x1de2/0x2ce0 kernel/exit.c:989
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
 __do_sys_exit_group kernel/exit.c:1098 [inline]
 __se_sys_exit_group kernel/exit.c:1096 [inline]
 __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1096
 x64_sys_call+0x151f/0x1720 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: 0033:0x7f49ac2f2a90
RSP: 002b:00007ffe99d98b98 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f49ac3e3860 RCX: 00007f49ac2f2a90
RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001
RBP: 00007f49ac3e3860 R08: 0000000000000001 R09: ead97995a4848218
R10: 00007ffe99d98a50 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f49ac3e7658 R15: 0000000000000001
 </TASK>
task:modprobe        state:R  running task     stack:24032 pid:9696  tgid:9696  ppid:46     flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 cr4_clear_bits_irqsoff arch/x86/include/asm/tlbflush.h:37 [inline]
 cr4_update_pce_mm arch/x86/mm/tlb.c:481 [inline]
 cr4_update_pce_mm arch/x86/mm/tlb.c:469 [inline]
 switch_mm_irqs_off+0x691/0xb10 arch/x86/mm/tlb.c:654
 </TASK>
task:modprobe        state:R  running task     stack:24752 pid:9702  tgid:9702  ppid:1168   flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9710  tgid:9710  ppid:1169   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 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>
task:modprobe        state:R  running task     stack:24752 pid:9718  tgid:9718  ppid:1168   flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 </TASK>
task:modprobe        state:R  running task     stack:24752 pid:9722  tgid:9722  ppid:1168   flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9726  tgid:9726  ppid:1168   flags:0x00000002
Call Trace:
 <TASK>
 </TASK>
task:modprobe        state:R  running task     stack:24752 pid:9734  tgid:9734  ppid:1168   flags:0x00000002
Call Trace:
 <TASK>
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9738  tgid:9738  ppid:1168   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6935
 __cond_resched+0x1b/0x30 kernel/sched/core.c:7280
 </TASK>
task:modprobe        state:R  running task     stack:24752 pid:9742  tgid:9742  ppid:11     flags:0x00000002
Call Trace:
 <TASK>
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9750  tgid:9750  ppid:11     flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9758  tgid:9758  ppid:11     flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6935
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9766  tgid:9766  ppid:11     flags:0x00000002
Call Trace:
 <TASK>
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9770  tgid:9770  ppid:11     flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9778  tgid:9778  ppid:1169   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6935
 </TASK>
task:modprobe        state:R  running task     stack:24752 pid:9782  tgid:9782  ppid:11     flags:0x00000002
Call Trace:
 <TASK>
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9786  tgid:9786  ppid:11     flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 __do_sys_exit_group kernel/exit.c:1098 [inline]
 __se_sys_exit_group kernel/exit.c:1096 [inline]
 __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1096
 </TASK>
task:modprobe        state:R  running task     stack:24752 pid:9788  tgid:9788  ppid:46     flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6935
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9792  tgid:9792  ppid:46     flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 __do_sys_exit_group kernel/exit.c:1098 [inline]
 __se_sys_exit_group kernel/exit.c:1096 [inline]
 __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1096
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9794  tgid:9794  ppid:1169   flags:0x00000002
Call Trace:
 <TASK>
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9797  tgid:9797  ppid:1168   flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6935
 __cond_resched+0x1b/0x30 kernel/sched/core.c:7280
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9799  tgid:9799  ppid:1169   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 do_task_dead+0xd6/0x110 kernel/sched/core.c:6772
 do_exit+0x1de2/0x2ce0 kernel/exit.c:989
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
 __do_sys_exit_group kernel/exit.c:1098 [inline]
 __se_sys_exit_group kernel/exit.c:1096 [inline]
 __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1096
 x64_sys_call+0x151f/0x1720 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: 0033:0x7f821055ba90
RSP: 002b:00007ffcaa18eb78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f821064c860 RCX: 00007f821055ba90
RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001
RBP: 00007f821064c860 R08: 0000000000000001 R09: 0664e6fc023db4a5
R10: 00007ffcaa18ea30 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f8210650658 R15: 0000000000000001
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9805  tgid:9805  ppid:1168   flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9813  tgid:9813  ppid:1168   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 </TASK>
task:modprobe        state:R  running task     stack:24720 pid:9817  tgid:9817  ppid:46     flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 do_task_dead+0xd6/0x110 kernel/sched/core.c:6772
 do_exit+0x1de2/0x2ce0 kernel/exit.c:989
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
 __do_sys_exit_group kernel/exit.c:1098 [inline]
 __se_sys_exit_group kernel/exit.c:1096 [inline]
 __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1096
 x64_sys_call+0x151f/0x1720 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: 0033:0x7f8e16b4fa90
RSP: 002b:00007fff885fcd88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f8e16c40860 RCX: 00007f8e16b4fa90
RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001
RBP: 00007f8e16c40860 R08: 0000000000000001 R09: 48308b7395380d91
R10: 00007fff885fcc40 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f8e16c44658 R15: 0000000000000001
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9821  tgid:9821  ppid:46     flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 do_task_dead+0xd6/0x110 kernel/sched/core.c:6772
 do_exit+0x1de2/0x2ce0 kernel/exit.c:989
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
 __do_sys_exit_group kernel/exit.c:1098 [inline]
 __se_sys_exit_group kernel/exit.c:1096 [inline]
 __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1096
 x64_sys_call+0x151f/0x1720 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: 0033:0x7f4c6f469a90
RSP: 002b:00007fff8816c898 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f4c6f55a860 RCX: 00007f4c6f469a90
RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001
RBP: 00007f4c6f55a860 R08: 0000000000000001 R09: 41cdc8565d2d5f9e
R10: 00007fff8816c750 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f4c6f55e658 R15: 0000000000000001
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9828  tgid:9828  ppid:1169   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 do_task_dead+0xd6/0x110 kernel/sched/core.c:6772
 do_exit+0x1de2/0x2ce0 kernel/exit.c:989
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
 __do_sys_exit_group kernel/exit.c:1098 [inline]
 __se_sys_exit_group kernel/exit.c:1096 [inline]
 __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1096
 x64_sys_call+0x151f/0x1720 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: 0033:0x7fea7dc2ca90
RSP: 002b:00007ffc328d9758 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007fea7dd1d860 RCX: 00007fea7dc2ca90
RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001
RBP: 00007fea7dd1d860 R08: 0000000000000001 R09: e006f3afa38e7db4
R10: 00007ffc328d9610 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fea7dd21658 R15: 0000000000000001
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9833  tgid:9833  ppid:11     flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 __do_sys_exit_group kernel/exit.c:1098 [inline]
 __se_sys_exit_group kernel/exit.c:1096 [inline]
 __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1096
 </TASK>
task:modprobe        state:R  running task     stack:24720 pid:9835  tgid:9835  ppid:46     flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 do_task_dead+0xd6/0x110 kernel/sched/core.c:6772
 do_exit+0x1de2/0x2ce0 kernel/exit.c:989
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
 __do_sys_exit_group kernel/exit.c:1098 [inline]
 __se_sys_exit_group kernel/exit.c:1096 [inline]
 __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1096
 x64_sys_call+0x151f/0x1720 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: 0033:0x7f81c2453a90
RSP: 002b:00007fffd912f118 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f81c2544860 RCX: 00007f81c2453a90
RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001
RBP: 00007f81c2544860 R08: 0000000000000001 R09: 4ac22731349346ac
R10: 00007fffd912efd0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f81c2548658 R15: 0000000000000001
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9840  tgid:9840  ppid:1169   flags:0x00000002
Call Trace:
 <TASK>
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9848  tgid:9848  ppid:1169   flags:0x00000002
Call Trace:
 <TASK>
 </TASK>
task:modprobe        state:R  running task     stack:24752 pid:9849  tgid:9849  ppid:11     flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9856  tgid:9856  ppid:1169   flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9860  tgid:9860  ppid:1169   flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 __debug_check_no_obj_freed lib/debugobjects.c:1088 [inline]
 debug_check_no_obj_freed+0x1cf/0x600 lib/debugobjects.c:1129
 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
 lookup_chain_cache_add kernel/locking/lockdep.c:3816 [inline]
 validate_chain kernel/locking/lockdep.c:3872 [inline]
 __lock_acquire+0x15a9/0x3c40 kernel/locking/lockdep.c:5226
 </TASK>
task:modprobe        state:R  running task     stack:24032 pid:9864  tgid:9864  ppid:11     flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 do_task_dead+0xd6/0x110 kernel/sched/core.c:6772
 do_exit+0x1de2/0x2ce0 kernel/exit.c:989
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
 __do_sys_exit_group kernel/exit.c:1098 [inline]
 __se_sys_exit_group kernel/exit.c:1096 [inline]
 __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1096
 x64_sys_call+0x151f/0x1720 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: 0033:0x7f914d5a5a90
RSP: 002b:00007ffd9271b828 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f914d696860 RCX: 00007f914d5a5a90
RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001
RBP: 00007f914d696860 R08: 0000000000000001 R09: cb0f9e574757e714
R10: 00007ffd9271b6e0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f914d69a658 R15: 0000000000000001
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9871  tgid:9871  ppid:1168   flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x102c/0x34b0 kernel/sched/core.c:6756
 do_task_dead+0xd6/0x110 kernel/sched/core.c:6772
 do_exit+0x1de2/0x2ce0 kernel/exit.c:989
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
 __do_sys_exit_group kernel/exit.c:1098 [inline]
 __se_sys_exit_group kernel/exit.c:1096 [inline]
 __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1096
 x64_sys_call+0x151f/0x1720 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: 0033:0x7f3402f00a90
RSP: 002b:00007ffe0b0e4158 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f3402ff1860 RCX: 00007f3402f00a90
RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001
RBP: 00007f3402ff1860 R08: 0000000000000001 R09: bdbb5006adb7772a
R10: 00007ffe0b0e4010 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f3402ff5658 R15: 0000000000000001
 </TASK>
task:modprobe        state:R  running task     stack:24752 pid:9876  tgid:9876  ppid:11     flags:0x00000002
Call Trace:
 <TASK>
 </TASK>
task:modprobe        state:R  running task     stack:25360 pid:9877  tgid:9877  ppid:46     flags:0x00000002
Call Trace: