rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-...D } 2655 jiffies s: 773 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: 5171 Comm: syz-executor.0 Not tainted 6.2.0-syzkaller-13008-gdb47fa2e4cbf #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 RIP: 0010:debug_spin_unlock kernel/locking/spinlock_debug.c:105 [inline] RIP: 0010:do_raw_spin_unlock+0x10b/0x230 kernel/locking/spinlock_debug.c:140 Code: 8b 05 e5 f0 9c 7e 39 45 08 0f 85 b4 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 80 3c 02 00 0f 85 f4 00 00 00 <4c> 89 e2 48 c7 45 10 ff ff ff ff 48 b8 00 00 00 00 00 fc ff df 48 RSP: 0018:ffffc900001e0df0 EFLAGS: 00000046 RAX: dffffc0000000000 RBX: 0000000000000046 RCX: ffffffff8166c714 RDX: 1ffff11017325702 RSI: 0000000000000004 RDI: ffff8880b992b800 RBP: ffff8880b992b800 R08: 0000000000000000 R09: ffff8880b992b803 R10: ffffed1017325700 R11: 0000000000000000 R12: ffff8880b992b808 R13: ffff8880b992b810 R14: ffff8880b992b800 R15: ffff888076a48340 FS: 00007f742306a700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2dd20000 CR3: 000000007a4f8000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:150 [inline] _raw_spin_unlock_irqrestore+0x22/0x70 kernel/locking/spinlock.c:194 __run_hrtimer kernel/time/hrtimer.c:1681 [inline] __hrtimer_run_queues+0x578/0x1010 kernel/time/hrtimer.c:1749 hrtimer_interrupt+0x320/0x7b0 kernel/time/hrtimer.c:1811 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1096 [inline] __sysvec_apic_timer_interrupt+0x180/0x660 arch/x86/kernel/apic/apic.c:1113 sysvec_apic_timer_interrupt+0x92/0xc0 arch/x86/kernel/apic/apic.c:1107 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+0x3c/0x70 kernel/locking/spinlock.c:194 Code: 74 24 10 e8 06 71 4a f7 48 89 ef e8 3e e2 4a f7 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00 0f b7 3c f7 65 8b 05 e0 d3 e7 75 85 c0 74 0a 5b 5d c3 e8 dc b1 RSP: 0018:ffffc90004577080 EFLAGS: 00000206 RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff22a54a6 RDX: 0000000000000000 RSI: 0000000000000202 RDI: 0000000000000001 RBP: ffff888076a482e8 R08: 0000000000000001 R09: ffffffff914e1c47 R10: 0000000000000001 R11: 0000000000000002 R12: 174acf0230b444d0 R13: 0000000000000246 R14: ffff888076a480f0 R15: ffff888076a48000 spin_unlock_irqrestore include/linux/spinlock.h:405 [inline] taprio_change+0x30c4/0x47f0 net/sched/sch_taprio.c:1936 taprio_init+0x64d/0x8c0 net/sched/sch_taprio.c:2077 qdisc_create+0x4d1/0x11b0 net/sched/sch_api.c:1295 tc_modify_qdisc+0x488/0x1a40 net/sched/sch_api.c:1680 rtnetlink_rcv_msg+0x43d/0xd50 net/core/rtnetlink.c:6174 netlink_rcv_skb+0x165/0x440 net/netlink/af_netlink.c:2574 netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline] netlink_unicast+0x547/0x7f0 net/netlink/af_netlink.c:1365 netlink_sendmsg+0x925/0xe30 net/netlink/af_netlink.c:1942 sock_sendmsg_nosec net/socket.c:722 [inline] sock_sendmsg+0xde/0x190 net/socket.c:745 ____sys_sendmsg+0x71c/0x900 net/socket.c:2504 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2558 __sys_sendmsg+0xf7/0x1c0 net/socket.c:2587 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x4645a9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f742306a198 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004645a9 RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000004 RBP: 000000000051b720 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000055bf00 R13: 00007f742306a6bc R14: 00000000ffffffff R15: 0000000000000003