rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-...D } 2678 jiffies s: 44153 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 UID: 0 PID: 11379 Comm: syz.3.1478 Not tainted 6.12.0-rc3-syzkaller-00007-g6485cf5ea253 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:advance_sched+0x992/0xca0 net/sched/sch_taprio.c:980 Code: 00 74 0b 48 89 fd e8 6d 52 33 f8 48 89 ef 48 8b 44 24 10 48 89 07 48 89 df 48 8b 34 24 4c 89 f2 e8 23 03 00 00 48 8b 44 24 78 <42> 80 3c 20 00 74 0a 48 8b 7c 24 70 e8 3d 52 33 f8 4d 89 77 e8 48 RSP: 0018:ffffc90000007c90 EFLAGS: 00000082 RAX: 1ffff11005d12e65 RBX: ffff88802e8972c0 RCX: ffff88807b463c00 RDX: 0000000000010000 RSI: 0000000000000004 RDI: ffff88807e182484 RBP: ffff88807e1824c8 R08: ffff88807e182487 R09: 1ffff1100fc30490 R10: dffffc0000000000 R11: ffffed100fc30491 R12: dffffc0000000000 R13: ffff88807e182408 R14: ffff88807e182400 R15: ffff88802e897340 FS: 00007f0b7090e6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0765fe1378 CR3: 000000002139a000 CR4: 0000000000350ef0 Call Trace: __run_hrtimer kernel/time/hrtimer.c:1691 [inline] __hrtimer_run_queues+0x59d/0xd50 kernel/time/hrtimer.c:1755 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1817 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1026 [inline] __sysvec_apic_timer_interrupt+0x112/0x3f0 arch/x86/kernel/apic/apic.c:1043 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1037 [inline] sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1037 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:check_preemption_disabled+0x6/0x120 lib/smp_processor_id.c:13 Code: c7 c6 80 fc 60 8c eb 1c 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 41 57 41 56 41 54 <53> 48 83 ec 10 65 48 8b 04 25 28 00 00 00 48 89 44 24 08 65 8b 1d RSP: 0018:ffffc900035aece0 EFLAGS: 00000283 RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff81707dc0 RDX: 0000000000000000 RSI: ffffffff8c60fc80 RDI: ffffffff8c60fc40 RBP: ffffc900035aee58 R08: ffffffff901cf6ef R09: 1ffffffff2039edd R10: dffffc0000000000 R11: fffffbfff2039ede R12: 1ffff920006b5db0 R13: ffffffff89cacd0a R14: ffffffff89cacd0a R15: dffffc0000000000 rcu_is_watching_curr_cpu include/linux/context_tracking.h:128 [inline] rcu_is_watching+0x15/0xb0 kernel/rcu/tree.c:737 trace_lock_release include/trace/events/lock.h:69 [inline] lock_release+0xbf/0xa30 kernel/locking/lockdep.c:5836 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:165 [inline] _raw_spin_unlock_bh+0x1b/0x40 kernel/locking/spinlock.c:210 spin_unlock_bh include/linux/spinlock.h:396 [inline] taprio_change+0x362a/0x44c0 net/sched/sch_taprio.c:1986 taprio_init+0x9da/0xc80 net/sched/sch_taprio.c:2113 qdisc_create+0x9d6/0x11a0 net/sched/sch_api.c:1360 tc_modify_qdisc+0xa26/0x1e40 net/sched/sch_api.c:1782 rtnetlink_rcv_msg+0x741/0xcf0 net/core/rtnetlink.c:6675 netlink_rcv_skb+0x1e5/0x430 net/netlink/af_netlink.c:2551 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0x7f8/0x990 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:729 [inline] __sock_sendmsg+0x223/0x270 net/socket.c:744 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2607 ___sys_sendmsg net/socket.c:2661 [inline] __sys_sendmsg+0x292/0x380 net/socket.c:2690 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0b6fb7dff9 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f0b7090e038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f0b6fd35f80 RCX: 00007f0b6fb7dff9 RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000004 RBP: 00007f0b6fbf0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f0b6fd35f80 R15: 00007ffcd7d41678