rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-...D } 2640 jiffies s: 777 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: 3699 Comm: syz-executor.0 Not tainted 6.1.0-rc4-syzkaller-00045-g1767a722a708 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:arch_atomic_read arch/x86/include/asm/atomic.h:29 [inline] RIP: 0010:atomic_read include/linux/atomic/atomic-instrumented.h:28 [inline] RIP: 0010:queued_spin_is_locked include/asm-generic/qspinlock.h:57 [inline] RIP: 0010:debug_spin_unlock kernel/locking/spinlock_debug.c:100 [inline] RIP: 0010:do_raw_spin_unlock+0x65/0x230 kernel/locking/spinlock_debug.c:140 Code: ad de 0f 85 73 01 00 00 be 04 00 00 00 48 89 ef e8 e0 d5 68 00 48 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 14 02 <48> 89 e8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 6a 01 00 00 8b RSP: 0018:ffffc900001e0d88 EFLAGS: 00000802 RAX: dffffc0000000000 RBX: ffff88807b533340 RCX: ffffffff81602d50 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88807b5332e8 RBP: ffff88807b5332e8 R08: 0000000000000000 R09: ffff88807b5332eb R10: ffffed100f6a665d R11: 0000000000000000 R12: ffff88802684c780 R13: 17265a97390e0f00 R14: ffff88802684c7a0 R15: 17265a97390e0f00 FS: 00007fc598369700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000051b730 CR3: 000000006fa7c000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __raw_spin_unlock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_unlock+0x1a/0x40 kernel/locking/spinlock.c:186 spin_unlock include/linux/spinlock.h:390 [inline] advance_sched+0x435/0x9a0 net/sched/sch_taprio.c:749 __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x690/0xfb0 kernel/time/hrtimer.c:1749 hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1096 [inline] __sysvec_apic_timer_interrupt+0x17c/0x640 arch/x86/kernel/apic/apic.c:1113 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1107 asm_sysvec_apic_timer_interrupt+0x16/0x20 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+0x38/0x70 kernel/locking/spinlock.c:194 Code: 74 24 10 e8 8a ab cd f7 48 89 ef e8 d2 17 ce 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 03 ad c0 f7 65 8b 05 ec 59 70 76 85 c0 74 0a 5b 5d c3 e8 80 0e RSP: 0018:ffffc900050171a8 EFLAGS: 00000206 RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff212f59e RDX: 0000000000000000 RSI: 0000000000000202 RDI: 0000000000000001 RBP: ffff88807b5332e8 R08: 0000000000000001 R09: ffffffff909329ff R10: 0000000000000001 R11: 0000000000000001 R12: ffff88807b5332e8 R13: 17265a970708d300 R14: ffff88807b533000 R15: 0000000000000000 spin_unlock_irqrestore include/linux/spinlock.h:405 [inline] taprio_change+0x2ed8/0x4000 net/sched/sch_taprio.c:1677 taprio_init+0x4c5/0x6b0 net/sched/sch_taprio.c:1808 qdisc_create+0x44a/0x1170 net/sched/sch_api.c:1272 tc_modify_qdisc+0x475/0x19a0 net/sched/sch_api.c:1672 rtnetlink_rcv_msg+0x43a/0xca0 net/core/rtnetlink.c:6091 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2540 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x543/0x7f0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x917/0xe10 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:734 ____sys_sendmsg+0x712/0x8c0 net/socket.c:2482 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2536 __sys_sendmsg+0xf3/0x1c0 net/socket.c:2565 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 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:00007fc598369198 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: 00007fc5983696bc R14: 00000000ffffffff R15: 0000000000000003