rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: {
0-....
} 2688 jiffies s: 3277 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
cdc_wdm 1-1:1.0: nonzero urb status received: -71
NMI backtrace for cpu 0
CPU: 0 PID: 2372 Comm: syslogd Not tainted 6.8.0-rc3-syzkaller-00049-g88bae831f381 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:200
Code: 76 65 f2 00 66 0f 1f 44 00 00 f3 0f 1e fa 48 8b be b0 01 00 00 e8 b0 ff ff ff 31 c0 c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 <f3> 0f 1e fa 65 48 8b 14 25 c0 b0 03 00 65 8b 05 a4 d3 b5 7e a9 00
RSP: 0018:ffffc90000006f40 EFLAGS: 00000046
RAX: 0000000000000002 RBX: ffffc9000000732b RCX: ffffffff864f2fd8
RDX: ffff888115765700 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000003 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 000000000024c078 R12: ffffc9000000732b
R13: 0000000000000000 R14: ffffc90080007327 R15: 0000000000000000
FS: 00007f7723e90380(0000) GS:ffff8881f6600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa4af9ceff0 CR3: 000000010f3ee000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<NMI>
</NMI>
<IRQ>
number+0x696/0xb80 lib/vsprintf.c:549
vsnprintf+0x905/0x1870 lib/vsprintf.c:2890
sprintf+0xcd/0x100 lib/vsprintf.c:3028
print_time kernel/printk/printk.c:1324 [inline]
info_print_prefix+0x258/0x350 kernel/printk/printk.c:1350
record_print_text+0x143/0x410 kernel/printk/printk.c:1399
printk_get_next_message+0x2ce/0x7c0 kernel/printk/printk.c:2828
console_emit_next_record kernel/printk/printk.c:2868 [inline]
console_flush_all+0x3b3/0xd60 kernel/printk/printk.c:2967
console_unlock+0x10c/0x260 kernel/printk/printk.c:3036
vprintk_emit+0x17f/0x5f0 kernel/printk/printk.c:2303
dev_vprintk_emit drivers/base/core.c:4850 [inline]
dev_printk_emit+0xfb/0x140 drivers/base/core.c:4861
__dev_printk+0xf5/0x270 drivers/base/core.c:4873
_dev_err+0xe5/0x120 drivers/base/core.c:4916
wdm_int_callback+0x10f/0xaa0 drivers/usb/class/cdc-wdm.c:269
__usb_hcd_giveback_urb+0x359/0x5c0 drivers/usb/core/hcd.c:1648
usb_hcd_giveback_urb+0x389/0x430 drivers/usb/core/hcd.c:1731
dummy_timer+0x1415/0x3600 drivers/usb/gadget/udc/dummy_hcd.c:1987
call_timer_fn+0x193/0x590 kernel/time/timer.c:1700
expire_timers kernel/time/timer.c:1751 [inline]
__run_timers+0x759/0xaa0 kernel/time/timer.c:2038
run_timer_softirq+0x58/0xd0 kernel/time/timer.c:2051
__do_softirq+0x20a/0x8c1 kernel/softirq.c:553
invoke_softirq kernel/softirq.c:427 [inline]
__irq_exit_rcu kernel/softirq.c:632 [inline]
irq_exit_rcu+0xa7/0x110 kernel/softirq.c:644
sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1076
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:file_needs_f_pos_lock fs/file.c:1181 [inline]
RIP: 0010:__fdget_pos+0x12a/0x170 fs/file.c:1189
Code: 44 a3 ff 49 8d bc 24 98 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 43 49 8b ac 24 98 01 00 00 <48> b8 00 00 00 00 00 fc ff df 48 8d 7d 38 48 89 fa 48 c1 ea 03 80
RSP: 0018:ffffc900003efe70 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: ffff8881162d7680 RCX: ffffffff81aa988c
RDX: 1ffff11022c5af03 RSI: ffffffff81aa98c3 RDI: ffff8881162d7818
RBP: ffffffff8691f9e0 R08: 0000000000000007 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000000 R12: ffff8881162d7680
R13: 00005624aef72c50 R14: dffffc0000000000 R15: 0000000000000074
fdget_pos include/linux/file.h:74 [inline]
ksys_write+0x72/0x250 fs/read_write.c:634
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f7723fe4bf2
Code: 89 c7 48 89 44 24 08 e8 7b 34 fa ff 48 8b 44 24 08 48 83 c4 28 c3 c3 64 8b 04 25 18 00 00 00 85 c0 75 20 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 6f 48 8b 15 07 a2 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffcbf487858 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f7723fe4bf2
RDX: 0000000000000074 RSI: 00005624aef72c50 RDI: 0000000000000003
RBP: 00005624aef72c50 R08: 0000000000000001 R09: 0000000000000000
R10: 00007f77241833a3 R11: 0000000000000246 R12: 0000000000000074
R13: 00007f7723e90300 R14: 0000000000000003 R15: 00005624aef72a60
</TASK>
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 1-1:1.0: wdm_int_callback - usb_submit_urb failed with result -1
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
usb 1-1: USB disconnect, device number 98
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
imon 3-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored