rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2627 jiffies s: 1933 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5273 Comm: syz-executor.5 Not tainted 6.5.0-rc1-syzkaller-00259-g831fe284d827 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023
RIP: 0010:get_interval_end_time net/sched/sch_taprio.c:237 [inline]
RIP: 0010:find_entry_to_transmit+0x37e/0x9f0 net/sched/sch_taprio.c:350
Code: b6 14 30 48 89 c8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 2b 05 00 00 49 8d 0c 1c 4c 89 e0 4c 63 c3 4c 29 e8 48 99 49 f7 f8 <8b> 85 68 01 00 00 48 29 d1 48 89 cb 4e 8d 3c 20 48 8b 44 24 28 80
RSP: 0018:ffffc900000071f0 EFLAGS: 00000202
RAX: ffffffffca32a641 RBX: 0000000080000040 RCX: 1ae6acd28ca99080
RDX: 0000000000000000 RSI: ffffffff8859781f RDI: ffff888026944d38
RBP: ffff888026946800 R08: ffffffff80000040 R09: 0000000080000040
R10: ffff8880418382e7 R11: 0000000000000002 R12: 1ae6acd20ca99040
R13: 0000000000000000 R14: dffffc0000000000 R15: ffff888026944c00
FS:  00007fdd50f356c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020178030 CR3: 0000000040fdb000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 get_packet_txtime net/sched/sch_taprio.c:508 [inline]
 taprio_enqueue_one+0x881/0x1640 net/sched/sch_taprio.c:577
 taprio_enqueue+0x239/0x7e0 net/sched/sch_taprio.c:658
 dev_qdisc_enqueue+0x3f/0x230 net/core/dev.c:3732
 __dev_xmit_skb net/core/dev.c:3821 [inline]
 __dev_queue_xmit+0x2202/0x3f20 net/core/dev.c:4169
 dev_queue_xmit include/linux/netdevice.h:3088 [inline]
 neigh_hh_output include/net/neighbour.h:528 [inline]
 neigh_output include/net/neighbour.h:542 [inline]
 ip6_finish_output2+0x1083/0x1b20 net/ipv6/ip6_output.c:135
 __ip6_finish_output net/ipv6/ip6_output.c:196 [inline]
 ip6_finish_output+0x485/0x11d0 net/ipv6/ip6_output.c:207
 NF_HOOK_COND include/linux/netfilter.h:292 [inline]
 ip6_output+0x243/0x890 net/ipv6/ip6_output.c:228
 dst_output include/net/dst.h:458 [inline]
 NF_HOOK.constprop.0+0xfd/0x540 include/linux/netfilter.h:303
 ndisc_send_skb+0x9e8/0x1430 net/ipv6/ndisc.c:508
 ndisc_send_rs+0x133/0x690 net/ipv6/ndisc.c:718
 addrconf_rs_timer+0x412/0x840 net/ipv6/addrconf.c:3935
 call_timer_fn+0x1a0/0x580 kernel/time/timer.c:1700
 expire_timers kernel/time/timer.c:1751 [inline]
 __run_timers+0x764/0xb10 kernel/time/timer.c:2022
 run_timer_softirq+0x58/0xd0 kernel/time/timer.c:2035
 __do_softirq+0x218/0x965 kernel/softirq.c:553
 invoke_softirq kernel/softirq.c:427 [inline]
 __irq_exit_rcu kernel/softirq.c:632 [inline]
 irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644
 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1109
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x31/0x70 kernel/locking/spinlock.c:194
Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 66 f9 31 f7 48 89 df e8 1e 72 32 f7 f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f <bf> 01 00 00 00 e8 95 1d 24 f7 65 8b 05 b6 3b ce 75 85 c0 74 12 5b
RSP: 0018:ffffc9000549f738 EFLAGS: 00000246
RAX: 0000000000000002 RBX: ffff888022eec1d0 RCX: 1ffffffff2311cfa
RDX: 0000000000000000 RSI: ffffffff8a6c7720 RDI: ffffffff8ac805a0
RBP: 0000000000000293 R08: 0000000000000001 R09: fffffbfff23093e5
R10: ffffffff91849f2f R11: 0000000000000000 R12: ffff888022eec1b8
R13: ffff88801f0448c0 R14: 0000000000000293 R15: ffffc9000549f8d8
 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
 __skb_try_recv_datagram+0x16f/0x4f0 net/core/datagram.c:265
 __unix_dgram_recvmsg+0x1d5/0xe50 net/unix/af_unix.c:2353
 unix_dgram_recvmsg+0xc3/0xf0 net/unix/af_unix.c:2450
 sock_recvmsg_nosec net/socket.c:1020 [inline]
 ____sys_recvmsg+0x4ab/0x5c0 net/socket.c:2711
 ___sys_recvmsg+0x115/0x1a0 net/socket.c:2755
 do_recvmmsg+0x2af/0x740 net/socket.c:2849
 __sys_recvmmsg net/socket.c:2928 [inline]
 __do_sys_recvmmsg net/socket.c:2951 [inline]
 __se_sys_recvmmsg net/socket.c:2944 [inline]
 __x64_sys_recvmmsg+0x235/0x290 net/socket.c:2944
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fdd5027cb29
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fdd50f350c8 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007fdd5039c050 RCX: 00007fdd5027cb29
RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000004
RBP: 00007fdd502c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fdd5039c050 R15: 00007fdd504bfa48
 </TASK>