rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: {
 1-....
 } 2690 jiffies s: 6517 root: 0x2/.
rcu: blocking rcu_node structures (internal RCU debug):
rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: {
 1-.... } 2727 jiffies s: 6521 root: 0x2/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 0 to CPUs 1:
yealink 1-1:36.0: unexpected response 0
yealink 1-1:36.0: urb_ctl_callback - urb status -71
NMI backtrace for cpu 1
CPU: 1 PID: 26161 Comm: kworker/1:0 Not tainted 6.10.0-rc6-syzkaller-gf7697db8b1b3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Workqueue: events_power_efficient neigh_managed_work
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 b1 93 0b ff eb a0 e8 3a 94 0b
RSP: 0018:ffffc900001b7010 EFLAGS: 00000002
RAX: 0000000000000020 RBX: 00000000000003f8 RCX: 0000000000000000
RDX: 00000000000003f8 RSI: ffffffff829a0ff5 RDI: ffffffff8d717960
RBP: ffffffff8d717920 R08: 0000000000000001 R09: 000000000000001f
R10: 0000000000000000 R11: 0000000000000008 R12: 0000000000000000
R13: 0000000000000020 R14: ffffffff829a0f90 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881f6500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffde128bf80 CR3: 00000001166f4000 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: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:2913 [inline]
 console_flush_all+0x53c/0xd70 kernel/printk/printk.c:2979
 console_unlock+0xae/0x290 kernel/printk/printk.c:3048
 vprintk_emit kernel/printk/printk.c:2348 [inline]
 vprintk_emit+0x11a/0x5a0 kernel/printk/printk.c:2303
 dev_vprintk_emit drivers/base/core.c:4909 [inline]
 dev_printk_emit+0xfb/0x140 drivers/base/core.c:4920
 __dev_printk+0xf5/0x270 drivers/base/core.c:4932
 _dev_err+0xe5/0x120 drivers/base/core.c:4975
 urb_ctl_callback+0x1eb/0x2f0 drivers/input/misc/yealink.c:454
 __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:1689 [inline]
 __hrtimer_run_queues+0x20c/0xcc0 kernel/time/hrtimer.c:1753
 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1815
 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:get_current arch/x86/include/asm/current.h:49 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x60 kernel/kcov.c:206
Code: 00 e8 a0 ff ff ff 31 c0 c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa <65> 48 8b 15 c4 81 b0 7e 65 8b 05 c5 81 b0 7e a9 00 01 ff 00 48 8b
RSP: 0018:ffffc900001b7b18 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: ffffffff81214b65 RCX: ffffffff81153057
RDX: 1ffff92000036f72 RSI: ffffffff81153060 RDI: 0000000000000005
RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: ffffffff81a572f3 R12: ffffc900001b7b90
R13: ffffffff813f1110 R14: ffffc900001b7c08 R15: ffff88811b6f8000
 unwind_get_return_address+0xb0/0xe0 arch/x86/kernel/unwind_orc.c:369
 arch_stack_walk+0xc1/0x170 arch/x86/kernel/stacktrace.c:26
 stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 unpoison_slab_object mm/kasan/common.c:312 [inline]
 __kasan_slab_alloc+0x6e/0x70 mm/kasan/common.c:338
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slub.c:3940 [inline]
 slab_alloc_node mm/slub.c:4002 [inline]
 kmem_cache_alloc_node_noprof+0x13e/0x2e0 mm/slub.c:4045
 kmalloc_reserve+0x18b/0x2c0 net/core/skbuff.c:575
 __alloc_skb+0x164/0x380 net/core/skbuff.c:666
 alloc_skb include/linux/skbuff.h:1308 [inline]
 __tcp_send_ack.part.0+0x64/0x720 net/ipv4/tcp_output.c:4247
 __tcp_send_ack net/ipv4/tcp_output.c:4279 [inline]
 tcp_send_ack+0x82/0xa0 net/ipv4/tcp_output.c:4279
 __tcp_ack_snd_check+0x188/0xc30 net/ipv4/tcp_input.c:5711
 tcp_ack_snd_check net/ipv4/tcp_input.c:5757 [inline]
 tcp_ack_snd_check net/ipv4/tcp_input.c:5751 [inline]
 tcp_rcv_established+0x9d4/0x21a0 net/ipv4/tcp_input.c:6197
 tcp_v4_do_rcv+0x710/0xac0 net/ipv4/tcp_ipv4.c:1909
 tcp_v4_rcv+0x2df8/0x3b10 net/ipv4/tcp_ipv4.c:2345
 ip_protocol_deliver_rcu+0xba/0x4e0 net/ipv4/ip_input.c:205
 ip_local_deliver_finish+0x329/0x580 net/ipv4/ip_input.c:233
 NF_HOOK include/linux/netfilter.h:314 [inline]
 NF_HOOK include/linux/netfilter.h:308 [inline]
 ip_local_deliver+0x1bf/0x560 net/ipv4/ip_input.c:254
 dst_input include/net/dst.h:460 [inline]
 ip_sublist_rcv_finish+0x2c1/0x620 net/ipv4/ip_input.c:580
 ip_list_rcv_finish.constprop.0+0x480/0x630 net/ipv4/ip_input.c:631
 ip_sublist_rcv net/ipv4/ip_input.c:639 [inline]
 ip_list_rcv+0x339/0x450 net/ipv4/ip_input.c:674
 __netif_receive_skb_list_ptype net/core/dev.c:5668 [inline]
 __netif_receive_skb_list_core+0x755/0x950 net/core/dev.c:5716
 __netif_receive_skb_list net/core/dev.c:5768 [inline]
 netif_receive_skb_list_internal+0x753/0xda0 net/core/dev.c:5860
 gro_normal_list include/net/gro.h:515 [inline]
 gro_normal_one include/net/gro.h:528 [inline]
 napi_skb_finish net/core/gro.c:609 [inline]
 napi_gro_receive+0x9c0/0xbf0 net/core/gro.c:639
 receive_buf+0xb73/0x65b0 drivers/net/virtio_net.c:2003
 virtnet_receive drivers/net/virtio_net.c:2277 [inline]
 virtnet_poll+0x7ea/0x1880 drivers/net/virtio_net.c:2380
 __napi_poll.constprop.0+0xb7/0x550 net/core/dev.c:6722
 napi_poll net/core/dev.c:6791 [inline]
 net_rx_action+0x9b6/0xf10 net/core/dev.c:6907
 handle_softirqs+0x209/0x8e0 kernel/softirq.c:554
 do_softirq kernel/softirq.c:455 [inline]
 do_softirq+0xb2/0xf0 kernel/softirq.c:442
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0x100/0x120 kernel/softirq.c:382
 process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3248
 process_scheduled_works kernel/workqueue.c:3329 [inline]
 worker_thread+0x6c8/0xf30 kernel/workqueue.c:3409
 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>
yealink 1-1:36.0: urb_irq_callback - urb status -71
yealink 1-1:36.0: unexpected response 0
yealink 1-1:36.0: urb_ctl_callback - urb status -71
yealink 1-1:36.0: urb_irq_callback - urb status -71
yealink 1-1:36.0: unexpected response 0
yealink 1-1:36.0: urb_ctl_callback - urb status -71
yealink 1-1:36.0: urb_irq_callback - urb status -71
yealink 1-1:36.0: unexpected response 0
yealink 1-1:36.0: urb_ctl_callback - urb status -71
yealink 1-1:36.0: urb_irq_callback - urb status -71
yealink 1-1:36.0: unexpected response 0
yealink 1-1:36.0: urb_ctl_callback - urb status -71
yealink 1-1:36.0: urb_irq_callback - urb status -71
yealink 1-1:36.0: unexpected response 0
yealink 1-1:36.0: urb_ctl_callback - urb status -71
yealink 1-1:36.0: urb_irq_callback - urb status -71
yealink 1-1:36.0: unexpected response 0
yealink 1-1:36.0: urb_ctl_callback - urb status -71
yealink 1-1:36.0: urb_irq_callback - urb status -71
yealink 1-1:36.0: unexpected response 0
yealink 1-1:36.0: urb_ctl_callback - urb status -71
yealink 1-1:36.0: urb_irq_callback - urb status -71
yealink 1-1:36.0: unexpected response 0
yealink 1-1:36.0: urb_ctl_callback - urb status -71
yealink 1-1:36.0: urb_irq_callback - urb status -71
yealink 1-1:36.0: unexpected response 0
yealink 1-1:36.0: urb_ctl_callback - urb status -71
yealink 1-1:36.0: urb_irq_callback - urb status -71
yealink 1-1:36.0: unexpected response 0
yealink 1-1:36.0: urb_ctl_callback - urb status -71
yealink 1-1:36.0: urb_irq_callback - urb status -71
yealink 1-1:36.0: unexpected response 0
yealink 1-1:36.0: urb_ctl_callback - urb status -71
yealink 1-1:36.0: urb_irq_callback - urb status -71
yealink 1-1:36.0: unexpected response 0