rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-...D } 2630 jiffies s: 557 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: 5083 Comm: syz-executor331 Not tainted 6.8.0-rc5-syzkaller-00163-gffd2cb6b718e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 RIP: 0010:__lock_acquire+0x48b/0x1fd0 kernel/locking/lockdep.c:5085 Code: 04 30 84 c0 0f 85 13 13 00 00 44 8b a4 24 e0 00 00 00 48 8b 44 24 10 44 89 38 49 89 c7 4c 8b 74 24 28 4b 8d 5c f0 24 48 89 d8 <48> c1 e8 03 0f b6 04 30 84 c0 0f 85 14 13 00 00 44 89 23 44 89 eb RSP: 0018:ffffc90000007a30 EFLAGS: 00000046 RAX: ffff888074fbc6b4 RBX: ffff888074fbc6b4 RCX: 0000000000040000 RDX: 0000000000080000 RSI: dffffc0000000000 RDI: 00000000000046f8 RBP: 000000000000000a R08: ffff888074fbc640 R09: 0000000000000001 R10: dffffc0000000000 R11: fffffbfff1f0acd6 R12: 0000000000000000 R13: 00000000000006f8 R14: 000000000000000a R15: ffff888074fbc6b0 FS: 0000555555e50380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000600 CR3: 000000002e3d4000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x1e3/0x530 kernel/locking/lockdep.c:5754 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:351 [inline] advance_sched+0xab/0xca0 net/sched/sch_taprio.c:935 __run_hrtimer kernel/time/hrtimer.c:1689 [inline] __hrtimer_run_queues+0x594/0xd00 kernel/time/hrtimer.c:1753 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1815 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1065 [inline] __sysvec_apic_timer_interrupt+0x107/0x3a0 arch/x86/kernel/apic/apic.c:1082 sysvec_apic_timer_interrupt+0x92/0xb0 arch/x86/kernel/apic/apic.c:1076 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649 RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194 Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 0e ec 83 f6 f6 44 24 21 02 75 52 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 13 ad f2 f5 65 8b 05 94 1e 92 74 85 c0 74 43 48 c7 04 24 0e 36 RSP: 0018:ffffc900040f6a60 EFLAGS: 00000206 RAX: edc1f28c14ac2d00 RBX: 1ffff9200081ed50 RCX: ffffffff8171893a RDX: dffffc0000000000 RSI: ffffffff8baab660 RDI: 0000000000000001 RBP: ffffc900040f6af0 R08: ffffffff92c8c4e7 R09: 1ffffffff259189c R10: dffffc0000000000 R11: fffffbfff259189d R12: dffffc0000000000 R13: 1ffff9200081ed4c R14: ffffc900040f6a80 R15: 0000000000000246 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] taprio_change+0x4912/0x57d0 net/sched/sch_taprio.c:1993 taprio_init+0x9da/0xc80 net/sched/sch_taprio.c:2134 qdisc_create+0x9d4/0x1190 net/sched/sch_api.c:1355 tc_modify_qdisc+0xa26/0x1e40 net/sched/sch_api.c:1776 rtnetlink_rcv_msg+0x885/0x1040 net/core/rtnetlink.c:6618 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543 netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline] netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1367 netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:745 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584 ___sys_sendmsg net/socket.c:2638 [inline] __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667 do_syscall_64+0xf9/0x240 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7ff162e81de9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 19 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffdaf496c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ff162e81de9 RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000004 RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000100000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdaf496cc0 R13: 0000000000000001 R14: 00007ffdaf496cc0 R15: 0000000000000003 INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 2.913 msecs