rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: {
1-...D
} 2661 jiffies s: 101281 root: 0x2/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 2223 Comm: poweroff Not tainted 6.12.0-rc4-syzkaller-00052-gc6d9e43954bf #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 31 f0 0d ff eb a0 e8 ba f0 0d
RSP: 0018:ffffc900001b7f38 EFLAGS: 00000006
RAX: 0000000000000000 RBX: 00000000000003f9 RCX: 0000000000000000
RDX: 00000000000003f9 RSI: ffffffff82a08975 RDI: ffffffff93637660
RBP: ffffffff93637620 R08: 0000000000000001 R09: 000000000000001f
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: ffffffff93637670 R15: 000000000000002f
FS: 00007f3da95f6380(0000) GS:ffff8881f5900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200012b8 CR3: 0000000112b02000 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_clear_IER+0x9b/0xc0 drivers/tty/serial/8250/8250_port.c:699
serial8250_console_write+0x243/0x17c0 drivers/tty/serial/8250/8250_port.c:3358
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_handler_events_default+0x116/0x1b0 drivers/input/input.c:2549
input_pass_values+0x777/0x8e0 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
Code: 1f ff ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 41 57 4d 89 cf 41 56 41 89 f6 41 55 <49> 89 fd 41 54 41 89 d4 48 ba 00 00 00 00 00 fc ff df 55 53 48 81
RSP: 0018:ffffc900034dfa10 EFLAGS: 00000282
RAX: 0000000000000001 RBX: ffff8881150fa5a8 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881150fa618
RBP: 1ffff9200069bf47 R08: 0000000000000001 R09: 0000000000000000
R10: ffffffff8a564d8f R11: 0000000000000000 R12: dffffc0000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
down_read+0x9a/0x330 kernel/locking/rwsem.c:1524
inode_lock_shared include/linux/fs.h:825 [inline]
open_last_lookups fs/namei.c:3693 [inline]
path_openat+0x88a/0x2d60 fs/namei.c:3930
do_filp_open+0x1dc/0x430 fs/namei.c:3960
do_sys_openat2+0x17a/0x1e0 fs/open.c:1415
do_sys_open fs/open.c:1430 [inline]
__do_sys_openat fs/open.c:1446 [inline]
__se_sys_openat fs/open.c:1441 [inline]
__x64_sys_openat+0x175/0x210 fs/open.c:1441
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: 0033:0x7f3da974a9a4
Code: 24 20 48 8d 44 24 30 48 89 44 24 28 64 8b 04 25 18 00 00 00 85 c0 75 2c 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 60 48 8b 15 55 a4 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffc6b1e6250 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 00007f3da974a9a4
RDX: 0000000000000000 RSI: 00007ffc6b1e63b7 RDI: 00000000ffffff9c
RBP: 00007ffc6b1e63b7 R08: 0000000000000001 R09: 00007ffc6b1e5cb8
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc6b1e63b7 R14: 00007ffc6b1e63e8 R15: 00007f3da992da80
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6782
do_wait+0x1dd/0x570 kernel/exit.c:1697
kernel_wait4+0x16c/0x280 kernel/exit.c:1851
__do_sys_wait4+0x15f/0x170 kernel/exit.c:1879
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: 0033:0x7f248ba14213
RSP: 002b:00007ffc8ab89358 EFLAGS: 00000202 ORIG_RAX: 000000000000003d
RAX: ffffffffffffffda RBX: 0000000000000206 RCX: 00007f248ba14213
RDX: 0000000040000000 RSI: 00007ffc8ab8938c RDI: 00000000ffffffff
RBP: 00007ffc8ab8938c R08: 00000000000983e8 R09: 00007f248c714080
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000307f7d R15: 00007ffc8ab893e0
task:syz-executor state:S stack:25424 pid:29149 tgid:29149 ppid:2641 flags:0x00000000
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6690
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6782
do_wait+0x1dd/0x570 kernel/exit.c:1697
kernel_wait4+0x16c/0x280 kernel/exit.c:1851
__do_sys_wait4+0x15f/0x170 kernel/exit.c:1879
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: 0033:0x7fe764474213
RSP: 002b:00007fff72587908 EFLAGS: 00000202
ORIG_RAX: 000000000000003d
RAX: ffffffffffffffda RBX: 00000000000071e2 RCX: 00007fe764474213
RDX: 0000000040000000 RSI: 00007fff7258791c RDI: 00000000ffffffff
RBP: 00007fff7258791c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000000c
R13: 0000000000000003 R14: 0000000000000009 R15: 0000000000000000
task:syz-executor state:D stack:23744 pid:29150 tgid:29150 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6690
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6782
exp_funnel_lock+0x344/0x3b0 kernel/rcu/tree_exp.h:320
synchronize_rcu_expedited+0x290/0x450 kernel/rcu/tree_exp.h:976
namespace_unlock+0x1b5/0x490 fs/namespace.c:1703
drop_collected_mounts fs/namespace.c:2225 [inline]
put_mnt_ns fs/namespace.c:5553 [inline]
put_mnt_ns+0xf4/0x130 fs/namespace.c:5549
free_nsproxy+0x47/0x470 kernel/nsproxy.c:193
put_nsproxy include/linux/nsproxy.h:118 [inline]
switch_task_namespaces+0xeb/0x100 kernel/nsproxy.c:251
do_exit+0xad8/0x2ce0 kernel/exit.c:938
do_group_exit+0xd3/0x2a0 kernel/exit.c:1088
get_signal+0x25fb/0x2770 kernel/signal.c:2917
arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [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+0x147/0x260 kernel/entry/common.c:218
do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f63d6b64213
RSP: 002b:00007ffee4ae7d18 EFLAGS: 00000202
ORIG_RAX: 000000000000003d
RAX: fffffffffffffe00 RBX: 00000000000001fb RCX: 00007f63d6b64213
RDX: 0000000040000000 RSI: 00007ffee4ae7d4c RDI: 00000000ffffffff
RBP: 00007ffee4ae7d4c R08: 000000000009832a R09: 00007f63d7860080
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
R13: 0000000000000000 R14: 00000000003073e9 R15: 00007ffee4ae7da0
task:kworker/u8:1 state:I stack:25984 pid:29153 tgid:29153 ppid:2 flags:0x00004000
Workqueue: 0x0 (events_unbound)
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6690
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6782
worker_thread+0x2de/0xf00 kernel/workqueue.c:3406
kthread+0x2c1/0x3a0 kernel/kthread.c:389
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:syz-executor state:S
stack:24064 pid:29154 tgid:29154 ppid:29149 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6690
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6782
do_wait+0x1dd/0x570 kernel/exit.c:1697
kernel_wait4+0x16c/0x280 kernel/exit.c:1851
__do_sys_wait4+0x15f/0x170 kernel/exit.c:1879
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: 0033:0x7fe764474213
RSP: 002b:00007fff72587748 EFLAGS: 00000202 ORIG_RAX: 000000000000003d
RAX: ffffffffffffffda RBX: 00000000000001fe RCX: 00007fe764474213
RBP: 00007fff7258777c R08: 000000000009843c R09: 00007fe7642fa080
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000308121 R15: 00007fff725877d0
task:udevd state:S stack:24064 pid:30947 tgid:30947 ppid:2549 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6690
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6782
schedule_hrtimeout_range_clock+0x369/0x3b0 kernel/time/hrtimer.c:2272
ep_poll fs/eventpoll.c:2062 [inline]
do_epoll_wait+0x139b/0x1a90 fs/eventpoll.c:2459
__do_sys_epoll_wait fs/eventpoll.c:2471 [inline]
__se_sys_epoll_wait fs/eventpoll.c:2466 [inline]
__x64_sys_epoll_wait+0x194/0x290 fs/eventpoll.c:2466
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: 0033:0x7f177c21b457
RSP: 002b:00007fffeb168168 EFLAGS: 00000246
ORIG_RAX: 00000000000000e8
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f177c21b457
RDX: 0000000000000004 RSI: 00007fffeb1681a8 RDI: 0000000000000004
RBP: 000055a3a6ccafa0 R08: 0000000000000007 R09: 5254dcd19c42d5df
R10: 00000000ffffffff R11: 0000000000000246 R12: 000055a3a6cf6590
R13: 00007fffeb1681a8 R14: 00000000ffffffff R15: 000055a3a6c922c0
task:udevd state:S stack:24064 pid:31016 tgid:31016 ppid:2549 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6690
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6782
schedule_hrtimeout_range_clock+0x369/0x3b0 kernel/time/hrtimer.c:2272
ep_poll fs/eventpoll.c:2062 [inline]
do_epoll_wait+0x139b/0x1a90 fs/eventpoll.c:2459
__do_sys_epoll_wait fs/eventpoll.c:2471 [inline]
__se_sys_epoll_wait fs/eventpoll.c:2466 [inline]
__x64_sys_epoll_wait+0x194/0x290 fs/eventpoll.c:2466
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: 0033:0x7f177c21b457
RSP: 002b:00007fffeb168168 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f177c21b457
RDX: 0000000000000004 RSI: 00007fffeb1681a8 RDI: 0000000000000004
RBP: 000055a3a6caf410 R08: 0000000000000007 R09: 5254dcd19c42d5df
R10: 00000000ffffffff R11: 0000000000000246 R12: 000055a3a6cd2f40
R13: 00007fffeb1681a8 R14: 00000000ffffffff R15: 000055a3a6c922c0
task:udevd state:S stack:28176 pid:31017 tgid:31017 ppid:2549 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6690
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6782
schedule_hrtimeout_range_clock+0x369/0x3b0 kernel/time/hrtimer.c:2272
ep_poll fs/eventpoll.c:2062 [inline]
do_epoll_wait+0x139b/0x1a90 fs/eventpoll.c:2459
__do_sys_epoll_wait fs/eventpoll.c:2471 [inline]
__se_sys_epoll_wait fs/eventpoll.c:2466 [inline]
__x64_sys_epoll_wait+0x194/0x290 fs/eventpoll.c:2466
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: 0033:0x7f177c21b457
RSP: 002b:00007fffeb168168 EFLAGS: 00000246
ORIG_RAX: 00000000000000e8
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f177c21b457
RDX: 0000000000000004 RSI: 00007fffeb1681a8 RDI: 0000000000000004
RBP: 000055a3a6cc8410 R08: 0000000000000003 R09: 5254dcd19c42d5df
R10: 00000000ffffffff R11: 0000000000000246 R12: 000055a3a6cf2eb0
R13: 00007fffeb1681a8 R14: 00000000ffffffff R15: 000055a3a6c922c0
task:udevd state:S stack:27488 pid:31033 tgid:31033 ppid:2549 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6690
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6782
schedule_hrtimeout_range_clock+0x369/0x3b0 kernel/time/hrtimer.c:2272
ep_poll fs/eventpoll.c:2062 [inline]
do_epoll_wait+0x139b/0x1a90 fs/eventpoll.c:2459
__do_sys_epoll_wait fs/eventpoll.c:2471 [inline]
__se_sys_epoll_wait fs/eventpoll.c:2466 [inline]
__x64_sys_epoll_wait+0x194/0x290 fs/eventpoll.c:2466
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: 0033:0x7f177c21b457
RSP: 002b:00007fffeb168168 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f177c21b457
RDX: 0000000000000004 RSI: 00007fffeb1681a8 RDI: 0000000000000004
RBP: 000055a3a6cc8410 R08: 0000000000000004 R09: 5254dcd19c42d5df
R10: 00000000ffffffff R11: 0000000000000246 R12: 000055a3a6ce69d0
R13: 00007fffeb1681a8 R14: 00000000ffffffff R15: 000055a3a6c922c0
task:udevd state:S stack:26016 pid:31672 tgid:31672 ppid:2549 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6690
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6782
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
device_lock_interruptible include/linux/device.h:1019 [inline]
manufacturer_show+0x26/0xa0 drivers/usb/core/sysfs.c:142
dev_attr_show+0x53/0xe0 drivers/base/core.c:2431
sysfs_kf_seq_show+0x23e/0x410 fs/sysfs/file.c:59
seq_read_iter+0x4f4/0x12b0 fs/seq_file.c:230
kernfs_fop_read_iter+0x414/0x580 fs/kernfs/file.c:279
new_sync_read fs/read_write.c:488 [inline]
vfs_read+0x86e/0xbd0 fs/read_write.c:569
ksys_read+0x12f/0x260 fs/read_write.c:712
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
RSP: 002b:00007fffeb1611d8 EFLAGS: 00000246
ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 000055a3a6cf33a0 RCX: 00007f177c20eb6a
RDX: 0000000000001000 RSI: 00007fffeb161678 RDI: 0000000000000008
RBP: 000055a38a4a577b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008
R13: 000055a3a6cf3490 R14: 00007fffeb161678 R15: 000055a3a6ce3d60
task:kworker/0:0 state:I stack:29296 pid:32271 tgid:32271 ppid:2 flags:0x00004000
Workqueue: 0x0 (events)
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6690
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6782
worker_thread+0x2de/0xf00 kernel/workqueue.c:3406
kthread+0x2c1/0x3a0 kernel/kthread.c:389
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:syz-executor state:S stack:25424 pid:343 tgid:343 ppid:2641 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6690
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6782
do_wait+0x1dd/0x570 kernel/exit.c:1697
kernel_wait4+0x16c/0x280 kernel/exit.c:1851
__do_sys_wait4+0x15f/0x170 kernel/exit.c:1879
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: 0033:0x7efe605c4213
RSP: 002b:00007ffe791c27c8 EFLAGS: 00000202 ORIG_RAX: 000000000000003d
RAX: ffffffffffffffda RBX: 0000000000000158 RCX: 00007efe605c4213
RDX: 0000000040000000 RSI: 00007ffe791c27dc RDI: 00000000ffffffff
RBP: 00007ffe791c27dc R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000000c
R13: 0000000000000003 R14: 0000000000000009 R15: 0000000000000000
task:syz-executor state:S stack:24064 pid:344 tgid:344 ppid:343 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6690
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6782
do_wait+0x1dd/0x570 kernel/exit.c:1697
kernel_wait4+0x16c/0x280 kernel/exit.c:1851
__do_sys_wait4+0x15f/0x170 kernel/exit.c:1879
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: 0033:0x7efe605c4213
RSP: 002b:00007ffe791c2608 EFLAGS: 00000202
ORIG_RAX: 000000000000003d
RAX: ffffffffffffffda RBX: 00000000000000ce RCX: 00007efe605c4213
RDX: 0000000040000000 RSI: 00007ffe791c263c RDI: 00000000ffffffff
RBP: 00007ffe791c263c R08: 00000000000984ae R09: 00007efe6044a080
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000308356 R15: 00007ffe791c2690
task:kworker/1:9 state:I
stack:22144 pid:1044 tgid:1044 ppid:2 flags:0x00004000
Workqueue: 0x0 (events)
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6690
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6782
worker_thread+0x2de/0xf00 kernel/workqueue.c:3406
kthread+0x2c1/0x3a0 kernel/kthread.c:389
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:kworker/1:11 state:D stack:23088 pid:1073 tgid:1073 ppid:2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6690
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6782
schedule_timeout+0x136/0x2a0 kernel/time/timer.c:2615
schedule_timeout_uninterruptible kernel/time/timer.c:2649 [inline]
msleep+0x9b/0xd0 kernel/time/timer.c:2770
hub_port_reset+0x497/0x1e60 drivers/usb/core/hub.c:3119
hub_port_init+0x73e/0x3ab0 drivers/usb/core/hub.c:5010
hub_port_connect drivers/usb/core/hub.c:5450 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
port_event drivers/usb/core/hub.c:5821 [inline]
hub_event+0x2c16/0x4f40 drivers/usb/core/hub.c:5903
process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
task:kworker/1:12 state:I stack:22496 pid:1074 tgid:1074 ppid:2 flags:0x00004000
Workqueue: 0x0 (events)
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6690
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6782
kthread+0x2c1/0x3a0 kernel/kthread.c:389
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:kworker/u8:3 state:I stack:25520 pid:1161 tgid:1161 ppid:2 flags:0x00004000
Workqueue: 0x0 (events_unbound)
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6690
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6782
worker_thread+0x2de/0xf00 kernel/workqueue.c:3406
kthread+0x2c1/0x3a0 kernel/kthread.c:389
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:kworker/0:10 state:I
stack:21888 pid:1210 tgid:1210 ppid:2 flags:0x00004000
Workqueue: 0x0 (usb_hub_wq)
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6690
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6782
worker_thread+0x2de/0xf00 kernel/workqueue.c:3406
kthread+0x2c1/0x3a0 kernel/kthread.c:389
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:udevd state:S stack:28176 pid:1314 tgid:1314 ppid:2549 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6690
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6782
schedule_hrtimeout_range_clock+0x369/0x3b0 kernel/time/hrtimer.c:2272
ep_poll fs/eventpoll.c:2062 [inline]
do_epoll_wait+0x139b/0x1a90 fs/eventpoll.c:2459
__do_sys_epoll_wait fs/eventpoll.c:2471 [inline]
__se_sys_epoll_wait fs/eventpoll.c:2466 [inline]
__x64_sys_epoll_wait+0x194/0x290 fs/eventpoll.c:2466
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: 0033:0x7f177c21b457
RSP: 002b:00007fffeb168168 EFLAGS: 00000246
ORIG_RAX: 00000000000000e8
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f177c21b457
RDX: 0000000000000004 RSI: 00007fffeb1681a8 RDI: 0000000000000004
RBP: 000055a3a6cc8410 R08: 0000000000000007 R09: 5254dcd19c42d5df
R10: 00000000ffffffff R11: 0000000000000246 R12: 000055a3a6cea0c0
R13: 00007fffeb1681a8 R14: 00000000ffffffff R15: 000055a3a6c922c0
task:udevd state:S stack:26944 pid:1462 tgid:1462 ppid:2549 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x105f/0x34b0 kernel/sched/core.c:6690
__schedule_loop kernel/sched/core.c:6767 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6782
schedule_hrtimeout_range_clock+0x369/0x3b0 kernel/time/hrtimer.c:2272
ep_poll fs/eventpoll.c:2062 [inline]
do_epoll_wait+0x139b/0x1a90 fs/eventpoll.c:2459
__do_sys_epoll_wait fs/eventpoll.c:2471 [inline]
__se_sys_epoll_wait fs/eventpoll.c:2466 [inline]
__x64_sys_epoll_wait+0x194/0x290 fs/eventpoll.c:2466
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: 0033:0x7f177c21b457
RSP: 002b:00007fffeb168168 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f177c21b457
RDX: 0000000000000004 RSI: 00007fffeb1681a8 RDI: 0000000000000004
RBP: 000055a3a6cc8410