rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-...D } 2690 jiffies s: 7537 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: 5511 Comm: syz-executor.3 Not tainted 6.10.0-rc1-syzkaller-00296-g89be4025b0db #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:get_current arch/x86/include/asm/current.h:49 [inline] RIP: 0010:lockdep_enabled kernel/locking/lockdep.c:122 [inline] RIP: 0010:lock_release+0x104/0x9f0 kernel/locking/lockdep.c:5767 Code: 03 42 0f b6 04 38 84 c0 0f 85 f7 05 00 00 83 3d ad fb 3a 0e 00 0f 84 32 05 00 00 65 8b 05 74 0e 90 7e 85 c0 0f 85 23 05 00 00 <65> 48 8b 04 25 00 d5 03 00 48 89 44 24 18 48 8d 98 dc 0a 00 00 48 RSP: 0018:ffffc90000007b40 EFLAGS: 00000046 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81727bc0 RDX: 0000000000000000 RSI: ffffffff8c1ff220 RDI: ffffffff8c1ff1e0 RBP: ffffc90000007c70 R08: ffffffff8fad456f R09: 1ffffffff1f5a8ad R10: dffffc0000000000 R11: fffffbfff1f5a8ae R12: 1ffff92000000f74 R13: ffffffff898fe8b4 R14: ffff88805ea35800 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9400000(0063) knlGS:00000000f5ed9b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007fc901d4f5b0 CR3: 000000002ddae000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __raw_spin_unlock include/linux/spinlock_api_smp.h:141 [inline] _raw_spin_unlock+0x16/0x50 kernel/locking/spinlock.c:186 spin_unlock include/linux/spinlock.h:391 [inline] advance_sched+0x9b4/0xca0 net/sched/sch_taprio.c:981 __run_hrtimer kernel/time/hrtimer.c:1687 [inline] __hrtimer_run_queues+0x59b/0xd50 kernel/time/hrtimer.c:1751 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1813 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline] __sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:synchronize_rcu+0x0/0x360 kernel/rcu/tree.c:3976 Code: e1 07 80 c1 03 38 c1 0f 8c 97 fe ff ff 4c 89 f7 e8 b5 5f 7f 00 e9 8a fe ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 RSP: 0018:ffffc900042a6dd8 EFLAGS: 00000206 RAX: dffffc0000000000 RBX: 1ffff92000854dc4 RCX: ffffffff947a0603 RDX: 0000000000000001 RSI: ffffffff8bcac760 RDI: ffffffff8c1ff240 RBP: ffffc900042a6ea8 R08: ffffffff94794b8f R09: 1ffffffff28f2971 R10: dffffc0000000000 R11: fffffbfff28f2972 R12: ffffffff94793c48 R13: 1ffff92000854dc0 R14: 0000000000000a03 R15: ffffc900042a6e20 lockdep_unregister_key+0x4b7/0x540 kernel/locking/lockdep.c:6475 __qdisc_destroy+0x165/0x410 net/sched/sch_generic.c:1077 taprio_attach+0x24e/0x390 net/sched/sch_taprio.c:2149 qdisc_graft+0x128a/0x1580 net/sched/sch_api.c:1176 tc_modify_qdisc+0xf47/0x1e40 net/sched/sch_api.c:1788 rtnetlink_rcv_msg+0x89b/0x10d0 net/core/rtnetlink.c:6595 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2564 netlink_unicast_kernel net/netlink/af_netlink.c:1335 [inline] netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1361 netlink_sendmsg+0x8db/0xcb0 net/netlink/af_netlink.c:1905 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:745 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2585 ___sys_sendmsg net/socket.c:2639 [inline] __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2668 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb4/0x120 arch/x86/entry/common.c:386 do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf7450579 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000f5ed95ac EFLAGS: 00000206 ORIG_RAX: 0000000000000172 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000020000c00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000