rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2628 jiffies s: 701 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 PID: 4801 Comm: kworker/1:3 Not tainted 6.9.0-rc7-syzkaller-00158-g51474ab44abf #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Workqueue: events_power_efficient hub_init_func2
RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x0/0x20 kernel/kcov.c:303
Code: 0c 24 0f b7 d6 0f b7 f7 bf 03 00 00 00 e9 58 fe ff ff 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 48 8b 0c 24 89 f2 89 fe bf 05 00 00 00 e9 2a fe ff ff
RSP: 0018:ffffc900001a8520 EFLAGS: 00000006
RAX: 0000000000000200 RBX: 0000000000000002 RCX: ffff888119121a5c
RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 000000000000d000 R11: 0000000000000006 R12: ffff888118480a00
R13: 0000000000000200 R14: dffffc0000000000 R15: ffff8881093f45d8
FS:  0000000000000000(0000) GS:ffff8881f6500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c001400000 CR3: 00000001168d4000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 dummy_timer+0x45f/0x3900 drivers/usb/gadget/udc/dummy_hcd.c:1854
 __run_hrtimer kernel/time/hrtimer.c:1692 [inline]
 __hrtimer_run_queues+0x20c/0xcc0 kernel/time/hrtimer.c:1756
 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1818
 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:filter_irq_stacks+0x0/0x90 kernel/stacktrace.c:393
Code: e8 75 ff 65 00 48 8b 34 24 e9 51 ff ff ff 66 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 90 <f3> 0f 1e fa 85 f6 74 61 53 31 c0 48 bb 00 00 00 00 00 fc ff df 48
RSP: 0018:ffffc900001a89c0 EFLAGS: 00000292
RAX: 000000000000001b RBX: ffffc900001a8a28 RCX: 0000000000000001
RDX: 0000000000000820 RSI: 000000000000001b RDI: ffffc900001a8a28
RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000008 R12: 0000000000000820
R13: ffffc900001a8a28 R14: ffff8881022d0780 R15: 00000000000000e8
 stack_depot_save_flags+0x28/0x8f0 lib/stackdepot.c:609
 kasan_save_stack+0x42/0x60 mm/kasan/common.c:48
 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:3798 [inline]
 slab_alloc_node mm/slub.c:3845 [inline]
 kmem_cache_alloc_node+0x159/0x310 mm/slub.c:3888
 __alloc_skb+0x2b1/0x380 net/core/skbuff.c:658
 __netdev_alloc_skb+0x72/0x3f0 net/core/skbuff.c:732
 __netdev_alloc_skb_ip_align include/linux/skbuff.h:3321 [inline]
 rx_submit+0xfe/0xc50 drivers/net/usb/usbnet.c:498
 rx_alloc_submit+0xd8/0x150 drivers/net/usb/usbnet.c:1503
 usbnet_bh+0xb97/0xd90 drivers/net/usb/usbnet.c:1571
 tasklet_action_common.constprop.0+0x24c/0x3e0 kernel/softirq.c:785
 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
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:console_flush_all+0xa19/0xd70 kernel/printk/printk.c:2985
Code: e8 8c d1 25 00 9c 5b 81 e3 00 02 00 00 31 ff 48 89 de e8 9a bb 1e 00 48 85 db 0f 85 8b 01 00 00 e8 7c c0 1e 00 fb 48 8b 04 24 <4c> 89 fa 83 e2 07 0f b6 00 38 d0 7f 08 84 c0 0f 85 a9 02 00 00 41
RSP: 0018:ffffc9000add76c8 EFLAGS: 00000293
RAX: fffff520015baf00 RBX: 0000000000000000 RCX: ffffffff81341cc6
RDX: ffff888115779d00 RSI: ffffffff81341cd4 RDI: 0000000000000007
RBP: dffffc0000000000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000007 R12: 0000000000000200
R13: ffffffff889797d8 R14: ffffffff88979780 R15: ffffc9000add7800
 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:4950 [inline]
 dev_printk_emit+0xfb/0x140 drivers/base/core.c:4961
 __dev_printk+0xf5/0x270 drivers/base/core.c:4973
 _dev_err+0xe5/0x120 drivers/base/core.c:5016
 hub_ext_port_status+0x1d5/0x670 drivers/usb/core/hub.c:624
 usb_hub_port_status drivers/usb/core/hub.c:671 [inline]
 hub_activate+0x70b/0x1d70 drivers/usb/core/hub.c:1181
 process_one_work+0x9a9/0x1ac0 kernel/workqueue.c:3267
 process_scheduled_works kernel/workqueue.c:3348 [inline]
 worker_thread+0x6c8/0xf70 kernel/workqueue.c:3429
 kthread+0x2c1/0x3a0 kernel/kthread.c:388
 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>