rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-...D } 2686 jiffies s: 617 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: 50 Comm: kworker/u8:3 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: ipv6_addrconf addrconf_dad_work
RIP: 0010:taprio_set_budgets+0x116/0x370 net/sched/sch_taprio.c:666
Code: 44 24 10 4c 89 74 24 18 4d 89 f5 45 31 ff 48 89 5c 24 08 bf 10 00 00 00 4c 89 fe e8 74 1a 1c f8 49 83 ff 0f 0f 87 63 01 00 00 <4c> 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74
RSP: 0018:ffffc90000a08c30 EFLAGS: 00000093
RAX: 0000000080010403 RBX: ffff888029a18130 RCX: ffff88801beb5a00
RDX: ffff88801beb5a00 RSI: 0000000000000000 RDI: 0000000000000010
RBP: dffffc0000000000 R08: ffffffff8978debc R09: fffff52000141180
R10: dffffc0000000000 R11: fffff52000141180 R12: 0000000000000000
R13: ffff888029a18400 R14: ffff888029a18400 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff9e97150f0 CR3: 00000000246bc000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 advance_sched+0x98d/0xca0 net/sched/sch_taprio.c:977
 __run_hrtimer kernel/time/hrtimer.c:1692 [inline]
 __hrtimer_run_queues+0x595/0xd00 kernel/time/hrtimer.c:1756
 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1818
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0x107/0x3a0 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 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:deref_stack_reg+0x1e4/0x260 arch/x86/kernel/unwind_orc.c:406
Code: 00 48 8b 2c 24 48 89 ef e8 79 08 00 00 48 89 c3 48 8b 6c 24 18 48 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 <74> 08 48 89 ef e8 92 37 b4 00 48 89 5d 00 b0 01 eb 0e e8 95 35 54
RSP: 0018:ffffc90000ba69a8 EFLAGS: 00000246
RAX: 1ffff92000174d64 RBX: ffffc90000ba7bb0 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffc90000ba7a70
RBP: ffffc90000ba6b20 R08: ffffffff8140bd6b R09: ffffffff8140a8df
R10: 0000000000000003 R11: ffff88801beb5a00 R12: 1ffff92000174d5d
R13: 1ffff92000174d5e R14: 1ffff92000174d5c R15: ffffc90000ba8000
 unwind_next_frame+0x1ab8/0x2a00 arch/x86/kernel/unwind_orc.c:648
 arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 unpoison_slab_object mm/kasan/common.c:312 [inline]
 __kasan_slab_alloc+0x66/0x80 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+0x194/0x380 mm/slub.c:3888
 __alloc_skb+0x1c3/0x440 net/core/skbuff.c:658
 __pskb_copy_fclone+0xb7/0x11d0 net/core/skbuff.c:2168
 __pskb_copy include/linux/skbuff.h:1382 [inline]
 hsr_create_tagged_frame+0x26b/0xd20 net/hsr/hsr_forward.c:299
 hsr_forward_skb+0x135e/0x2400 net/hsr/hsr_forward.c:619
 hsr_dev_xmit+0x149/0x1d0 net/hsr/hsr_device.c:230
 __netdev_start_xmit include/linux/netdevice.h:4903 [inline]
 netdev_start_xmit include/linux/netdevice.h:4917 [inline]
 xmit_one net/core/dev.c:3531 [inline]
 dev_hard_start_xmit+0x26a/0x790 net/core/dev.c:3547
 __dev_queue_xmit+0x19f4/0x3b10 net/core/dev.c:4335
 neigh_output include/net/neighbour.h:542 [inline]
 ip6_finish_output2+0xff8/0x1670 net/ipv6/ip6_output.c:137
 ip6_finish_output+0x41e/0x810 net/ipv6/ip6_output.c:222
 NF_HOOK include/linux/netfilter.h:314 [inline]
 ndisc_send_skb+0xab0/0x1380 net/ipv6/ndisc.c:509
 ndisc_send_ns+0xcc/0x160 net/ipv6/ndisc.c:667
 addrconf_dad_work+0xb45/0x16f0 net/ipv6/addrconf.c:4279
 process_one_work kernel/workqueue.c:3254 [inline]
 process_scheduled_works+0xa00/0x1770 kernel/workqueue.c:3335
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3416
 kthread+0x2f0/0x390 kernel/kthread.c:388
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
 </TASK>
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 4.114 msecs