syzbot

rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2675 jiffies s: 6725 root: 0x2/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 0 to CPUs 1:
CPU: 1 PID: 4767 Comm: kworker/1:3 Not tainted 6.10.0-rc6-syzkaller-00108-g179264157bba #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Workqueue: usb_hub_wq hub_event
RIP: 0010:lookup_chain_cache kernel/locking/lockdep.c:3763 [inline]
RIP: 0010:lookup_chain_cache_add kernel/locking/lockdep.c:3782 [inline]
RIP: 0010:validate_chain kernel/locking/lockdep.c:3837 [inline]
RIP: 0010:__lock_acquire+0x1572/0x3b30 kernel/locking/lockdep.c:5137
RSP: 0018:ffffc900001b8ac0 EFLAGS: 00000046
RAX: 1ffffffff176fa6b RBX: ffffffff8bb7d340 RCX: ffffffff813082be
RDX: 1ffffffff1976be4 RSI: 0000000000000008 RDI: ffffffff8bb7d358
RBP: dffffc0000000000 R08: 0000000000000000 R09: fffffbfff199799c
R10: ffffffff8ccbcce7 R11: 0000000000000005 R12: 000000000000225c
R13: 22218ea5a99c19a3 R14: ffff8881157ca860 R15: 0000000000000002
FS:  0000000000000000(0000) GS:ffff8881f6500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8bcc925108 CR3: 000000000849e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 lock_acquire kernel/locking/lockdep.c:5754 [inline]
 lock_acquire+0x1b1/0x560 kernel/locking/lockdep.c:5719
 _raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378
 raw_spin_rq_lock_nested kernel/sched/core.c:559 [inline]
 raw_spin_rq_lock kernel/sched/sched.h:1406 [inline]
 rq_lock kernel/sched/sched.h:1702 [inline]
 sched_tick+0xa8/0x430 kernel/sched/core.c:5678
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0x8b/0xb0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
RIP: 0010:console_flush_all+0xa19/0xd70 kernel/printk/printk.c:2985
RSP: 0018:ffffc900022ff278 EFLAGS: 00000246
RAX: fffff5200045fe76 RBX: 0000000000000000 RCX: ffffc9000a833000
RDX: 0000000000040000 RSI: ffffffff813452d4 RDI: 0000000000000007
RBP: dffffc0000000000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000006 R12: 0000000000000200
R13: ffffffff88b7fbb8 R14: ffffffff88b7fb60 R15: ffffc900022ff3b0
 vprintk_emit kernel/printk/printk.c:2348 [inline]
 vprintk_emit+0x11a/0x5a0 kernel/printk/printk.c:2303
 usb_parse_configuration drivers/usb/core/config.c:691 [inline]
 usb_get_configuration+0xd50/0x5c00 drivers/usb/core/config.c:944
 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
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yealink 4-1:36.0: urb_ctl_callback - urb status -71
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yealink 4-1:36.0: urb_ctl_callback - urb status -71
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yealink 4-1:36.0: urb_ctl_callback - urb status -71
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yealink 4-1:36.0: urb_ctl_callback - urb status -71
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yealink 4-1:36.0: urb_ctl_callback - urb status -71
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yealink 4-1:36.0: urb_ctl_callback - urb status -71
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yealink 4-1:36.0: urb_ctl_callback - urb status -71
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yealink 4-1:36.0: urb_ctl_callback - urb status -71
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yealink 4-1:36.0: urb_ctl_callback - urb status -71
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yealink 4-1:36.0: urb_ctl_callback - urb status -71
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yealink 4-1:36.0: urb_ctl_callback - urb status -71
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yealink 4-1:36.0: urb_ctl_callback - urb status -71
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yealink 4-1:36.0: urb_ctl_callback - urb status -71
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yealink 4-1:36.0: urb_ctl_callback - urb status -71
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yealink 4-1:36.0: urb_ctl_callback - urb status -71
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yealink 4-1:36.0: urb_ctl_callback - urb status -71
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yealink 4-1:36.0: urb_ctl_callback - urb status -71
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yealink 4-1:36.0: urb_ctl_callback - urb status -71
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yealink 4-1:36.0: urb_ctl_callback - urb status -71