rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 1-....: (10504 ticks this GP) idle=58f/1/0x4000000000000000 softirq=5453/5455 fqs=5250 (t=10502 jiffies g=4305 q=75) NMI backtrace for cpu 1 CPU: 1 PID: 3627 Comm: syz-executor990 Not tainted 5.15.99-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62 trigger_single_cpu_backtrace include/linux/nmi.h:166 [inline] rcu_dump_cpu_stacks+0x223/0x390 kernel/rcu/tree_stall.h:343 print_cpu_stall kernel/rcu/tree_stall.h:627 [inline] check_cpu_stall kernel/rcu/tree_stall.h:711 [inline] rcu_pending kernel/rcu/tree.c:3887 [inline] rcu_sched_clock_irq+0xf26/0x1770 kernel/rcu/tree.c:2605 update_process_times+0x196/0x200 kernel/time/timer.c:1788 tick_sched_handle kernel/time/tick-sched.c:226 [inline] tick_sched_timer+0x22d/0x3c0 kernel/time/tick-sched.c:1420 __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x5d9/0xeb0 kernel/time/hrtimer.c:1749 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1811 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline] __sysvec_apic_timer_interrupt+0x17b/0x570 arch/x86/kernel/apic/apic.c:1103 sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:lock_acquire+0x276/0x570 kernel/locking/lockdep.c:5626 Code: 2b 00 74 08 4c 89 f7 e8 28 3d 67 00 f6 44 24 61 02 0f 85 d1 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25 RSP: 0018:ffffc900021aea40 EFLAGS: 00000206 RAX: 0000000000000001 RBX: 1ffff92000435d54 RCX: ffffffff81637e02 RDX: dffffc0000000000 RSI: ffffffff8a8b0f20 RDI: ffffffff8ad8b8c0 RBP: ffffc900021aeb98 R08: dffffc0000000000 R09: fffffbfff1f7662f R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000435d50 R13: dffffc0000000000 R14: ffffc900021aeaa0 R15: 0000000000000246 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline] _raw_spin_lock_bh+0x31/0x40 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:368 [inline] batadv_tt_local_purge+0x107/0x340 net/batman-adv/translation-table.c:1355 batadv_tt_local_resize_to_mtu+0x88/0x130 net/batman-adv/translation-table.c:3957 batadv_update_min_mtu net/batman-adv/hard-interface.c:635 [inline] batadv_hardif_activate_interface+0x1b1/0x370 net/batman-adv/hard-interface.c:662 batadv_hardif_enable_interface+0x737/0x9e0 net/batman-adv/hard-interface.c:745 batadv_softif_slave_add+0x75/0xf0 net/batman-adv/soft-interface.c:839 do_set_master net/core/rtnetlink.c:2523 [inline] __rtnl_newlink net/core/rtnetlink.c:3479 [inline] rtnl_newlink+0x1b68/0x2060 net/core/rtnetlink.c:3510 rtnetlink_rcv_msg+0x993/0xee0 net/core/rtnetlink.c:5587 netlink_rcv_skb+0x1cf/0x410 net/netlink/af_netlink.c:2533 netlink_unicast_kernel net/netlink/af_netlink.c:1330 [inline] netlink_unicast+0x7b6/0x980 net/netlink/af_netlink.c:1356 netlink_sendmsg+0xa30/0xd60 net/netlink/af_netlink.c:1952 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg net/socket.c:724 [inline] ____sys_sendmsg+0x59e/0x8f0 net/socket.c:2412 ___sys_sendmsg+0x252/0x2e0 net/socket.c:2466 __sys_sendmsg net/socket.c:2495 [inline] __do_sys_sendmsg net/socket.c:2504 [inline] __se_sys_sendmsg+0x19a/0x260 net/socket.c:2502 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f1e0ed0bef9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fff37d5a168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f1e0ed0bef9 RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000005 RBP: 0000000000000000 R08: 000000000000000d R09: 000000000000000d R10: 000000000000000d R11: 0000000000000246 R12: 00007fff37d5a180 R13: 00000000000f4240 R14: 0000000000000000 R15: 0000000000000000