rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: {
0-...D
} 2659 jiffies s: 15925 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
ep_poll fs/eventpoll.c:2062 [inline]
do_epoll_wait+0x13d4/0x1ae0 fs/eventpoll.c:2464
__do_sys_epoll_wait fs/eventpoll.c:2476 [inline]
__se_sys_epoll_wait fs/eventpoll.c:2471 [inline]
__x64_sys_epoll_wait+0x194/0x290 fs/eventpoll.c:2471
NMI backtrace for cpu 0
CPU: 0 PID: 15200 Comm: syz-executor.2 Not tainted 6.10.0-rc4-syzkaller-00053-g819984a0dd36 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
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 d1 90 0b ff eb a0 e8 5a 91 0b
RSP: 0018:ffffc90000006b30 EFLAGS: 00000002
RAX: 000000000000002e RBX: 00000000000003f8 RCX: 0000000000000000
RDX: 00000000000003f8 RSI: ffffffff829a0e85 RDI: ffffffff8d719be0
RBP: ffffffff8d719ba0 R08: 0000000000000001 R09: 000000000000001f
R10: 0000000000000000 R11: 0000000000000008 R12: 0000000000000000
R13: 000000000000002e R14: ffffffff829a0e20 R15: 0000000000000000
FS: 00007eff011d96c0(0000) GS:ffff8881f6400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2dc2c000 CR3: 000000011e050000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
serial_out drivers/tty/serial/8250/8250.h:122 [inline]
serial8250_console_fifo_write drivers/tty/serial/8250/8250_port.c:3322 [inline]
serial8250_console_write+0xce7/0x1090 drivers/tty/serial/8250/8250_port.c:3393
console_emit_next_record kernel/printk/printk.c:2928 [inline]
console_flush_all+0x53c/0xd70 kernel/printk/printk.c:2994
console_unlock+0xae/0x290 kernel/printk/printk.c:3063
vprintk_emit kernel/printk/printk.c:2345 [inline]
vprintk_emit+0x11a/0x5a0 kernel/printk/printk.c:2300
vprintk+0x7f/0xa0 kernel/printk/printk_safe.c:45
_printk+0xc8/0x100 kernel/printk/printk.c:2370
printk_stack_address arch/x86/kernel/dumpstack.c:72 [inline]
show_trace_log_lvl+0x211/0x500 arch/x86/kernel/dumpstack.c:285
sched_show_task kernel/sched/core.c:9191 [inline]
sched_show_task+0x42e/0x650 kernel/sched/core.c:9165
show_state_filter+0xee/0x320 kernel/sched/core.c:9236
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:1524 [inline]
kbd_event+0xcbd/0x17a0 drivers/tty/vt/keyboard.c:1543
input_to_handler+0x38f/0x4d0 drivers/input/input.c:132
input_pass_values+0x5c9/0x840 drivers/input/input.c:161
input_event_dispose+0x508/0x630 drivers/input/input.c:389
input_handle_event+0x11c/0xd80 drivers/input/input.c:406
input_event drivers/input/input.c:435 [inline]
input_event+0x83/0xa0 drivers/input/input.c:427
hidinput_hid_event+0xa12/0x2410 drivers/hid/hid-input.c:1746
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:2015
hid_input_report+0x345/0x440 drivers/hid/hid-core.c:2089
hid_irq_in+0x35e/0x870 drivers/hid/usbhid/hid-core.c:284
__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+0x17f6/0x3900 drivers/usb/gadget/udc/dummy_hcd.c:1987
__run_hrtimer kernel/time/hrtimer.c:1687 [inline]
__hrtimer_run_queues+0x20c/0xcc0 kernel/time/hrtimer.c:1751
hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1813
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
__sysvec_apic_timer_interrupt+0x10f/0x450 arch/x86/kernel/apic/apic.c:1049
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0x3e/0xb0 arch/x86/kernel/apic/apic.c:1043
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:sched_balance_rq+0x135d/0x2eb0 kernel/sched/fair.c:11394
Code: 87 05 00 48 89 df e8 d2 07 fc ff 8b 8c 24 a0 00 00 00 01 4c 24 40 4d 85 e4 0f 85 3e 03 00 00 9c 58 f6 c4 02 0f 85 92 07 00 00 <8b> 9c 24 38 01 00 00 f6 c3 02 74 3e 48 8b 44 24 50 83 e3 fd 89 9c
RSP: 0018:ffffc90000007c20 EFLAGS: 00000246
RAX: 0000000000000012 RBX: ffff8881f643d880 RCX: 1ffffffff137b0e1
RDX: 0000000000000000 RSI: ffffffff86c7d6e0 RDI: ffffffff86e77840
RBP: ffffc90000007df0 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff89bdc097 R11: 00000000000b9c93 R12: 0000000000000200
R13: 0000000000007d92 R14: ffffc90000007d70 R15: dffffc0000000000
sched_balance_domains+0x6fa/0xec0 kernel/sched/fair.c:11798
handle_softirqs+0x209/0x8e0 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:1043 [inline]
sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1043
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x31/0x80 kernel/locking/spinlock.c:194
Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 46 0c 9d fa 48 89 df e8 2e 89 9d fa f7 c5 00 02 00 00 75 23 9c 58 f6 c4 02 75 37 01 00 00 00 e8 65 ff 91 fa 65 8b 05 86 6b 6f 79 85 c0 74 16 5b
RSP: 0018:ffffc90001dcfdf0 EFLAGS: 00000246
RAX: 0000000000000006 RBX: ffff88811cf8e008 RCX: 1ffffffff137b0e1
RDX: 0000000000000000 RSI: ffffffff86c7d6e0 RDI: ffffffff86e77840
RBP: 0000000000000287 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff89bdc097 R11: 0000000000000004 R12: ffff88811cf8e000
R13: ffff88811cf8e144 R14: ffff88811cf8e008 R15: 0000000000000006
spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
raw_ioctl_run drivers/usb/gadget/legacy/raw_gadget.c:610 [inline]
raw_ioctl+0x10e3/0x2b80 drivers/usb/gadget/legacy/raw_gadget.c:1306
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:907 [inline]
__se_sys_ioctl fs/ioctl.c:893 [inline]
__x64_sys_ioctl+0x193/0x220 fs/ioctl.c:893
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: 0033:0x7eff01e7fc8b
Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00
RSP: 002b:00007eff011d6fa0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007eff01e7fc8b
RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000006
RBP: 00007eff011d8070 R08: 0000000000000010 R09: 00322e6364755f79
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007eff011d7040 R14: 0000000020000140 R15: 00007eff020e4c58
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: 0033:0x7f9c56ccb457
RSP: 002b:00007ffe61dca138 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8
RAX: ffffffffffffffda RBX: 00007ffe61dca238 RCX: 00007f9c56ccb457
RDX: 0000000000000008 RSI: 00007ffe61dca238 RDI: 000000000000000b
RBP: 000000000000000b R08: 0000000000000007 R09: cf1db673ca574960
R10: 0000000000000bb8 R11: 0000000000000246 R12: 0000000000000bb8
R13: 0000000200000001 R14: 0000000000000000 R15: 0000000000000000
task:dbus-daemon state:S stack:28640 pid:2421 tgid:2421 ppid:1 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0xca6/0x3170 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6837
schedule_hrtimeout_range_clock+0x3c7/0x430 kernel/time/hrtimer.c:2273
ep_poll fs/eventpoll.c:2062 [inline]
do_epoll_wait+0x13d4/0x1ae0 fs/eventpoll.c:2464
__do_sys_epoll_wait fs/eventpoll.c:2476 [inline]
__se_sys_epoll_wait fs/eventpoll.c:2471 [inline]
__x64_sys_epoll_wait+0x194/0x290 fs/eventpoll.c:2471
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: 0033:0x7f6a3589d457
RSP: 002b:00007ffefc1a0298 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8
RAX: ffffffffffffffda RBX: 00007ffefc1a02a8 RCX: 00007f6a3589d457
RDX: 0000000000000040 RSI: 00007ffefc1a02a8 RDI: 0000000000000003
RBP: 00007ffefc1a0638 R08: 0000000000000e5e R09: 00007f6a35a12080
R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007ffefc1a0638 R15: 00007ffefc1a0948
task:dhcpcd state:S stack:26208 pid:2436 tgid:2436 ppid:1 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0xca6/0x3170 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6837
schedule_hrtimeout_range_clock+0x20f/0x430 kernel/time/hrtimer.c:2289
poll_schedule_timeout.constprop.0+0xba/0x190 fs/select.c:244
do_poll fs/select.c:965 [inline]
do_sys_poll+0xae2/0xde0 fs/select.c:1016
__do_sys_ppoll fs/select.c:1122 [inline]
__se_sys_ppoll fs/select.c:1102 [inline]
__x64_sys_ppoll+0x25a/0x2d0 fs/select.c:1102
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: 0033:0x7f187b584ad5
RSP: 002b:00007ffcf4851820 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 0000561205b32e20 RCX: 00007f187b584ad5
RDX: 00007ffcf4851840 RSI: 0000000000000004 RDI: 0000561205b3cdb0
RBP: 00007ffcf4851b70 R08: 0000000000000008 R09: 00007f187b66d080
R10: 00007ffcf4851b70 R11: 0000000000000246 R12: 00007ffcf4851868
R13: 00005611fe351610 R14: 0000000000000000 R15: 0000000000000000
task:dhcpcd state:S stack:23480 pid:2437 tgid:2437 ppid:2436 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0xca6/0x3170 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6837
schedule_hrtimeout_range_clock+0x3c7/0x430 kernel/time/hrtimer.c:2273
poll_schedule_timeout.constprop.0+0xba/0x190 fs/select.c:244
do_poll fs/select.c:965 [inline]
do_sys_poll+0xae2/0xde0 fs/select.c:1016