rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2679 jiffies s: 203469 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: 18669 Comm: syz.0.13156 Not tainted 6.1.110-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:check_preemption_disabled+0x42/0x110 lib/smp_processor_id.c:55
Code: 08 65 8b 1d d0 25 5b 75 65 8b 05 71 7b 5b 75 a9 ff ff ff 7f 74 22 65 48 8b 04 25 28 00 00 00 48 3b 44 24 08 0f 85 c7 00 00 00 <89> d8 48 83 c4 10 5b 41 5c 41 5e 41 5f c3 48 c7 04 24 00 00 00 00
RSP: 0000:ffffc900000067e8 EFLAGS: 00000046
RAX: 295fcc07cd215d00 RBX: 0000000000000000 RCX: ffffc90000006803
RDX: 0000000000010100 RSI: ffffffff8b5d6da0 RDI: ffffffff8b5d6d60
RBP: ffffc90000006928 R08: ffffffff8101254c R09: fffffbfff1d33c96
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000000d0c
R13: ffffc900039bff58 R14: ffffc900039bff58 R15: 0000000000000002
FS:  00007f63187646c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000001 CR3: 00000000885a4000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000082
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 put_callchain_entry kernel/events/callchain.c:176 [inline]
 get_perf_callchain+0x5ac/0x810 kernel/events/callchain.c:223
 perf_callchain kernel/events/core.c:7484 [inline]
 perf_prepare_sample+0x390/0x1fb0 kernel/events/core.c:7517
 __perf_event_output kernel/events/core.c:7702 [inline]
 perf_event_output_forward+0x1b7/0x330 kernel/events/core.c:7722
 __perf_event_overflow+0x45e/0x640 kernel/events/core.c:9468
 perf_swevent_hrtimer+0x38e/0x4f0 kernel/events/core.c:10876
 __run_hrtimer kernel/time/hrtimer.c:1689 [inline]
 __hrtimer_run_queues+0x5a7/0xe50 kernel/time/hrtimer.c:1753
 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1815
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
 __sysvec_apic_timer_interrupt+0x156/0x580 arch/x86/kernel/apic/apic.c:1112
 sysvec_apic_timer_interrupt+0x3e/0xb0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:rcu_read_unlock_special+0xba/0x540 kernel/rcu/tree_plugin.h:682
Code: 3a 00 00 00 00 66 42 c7 44 3a 09 00 00 42 c6 44 3a 0b 00 65 48 8b 04 25 28 00 00 00 48 3b 84 24 80 00 00 00 0f 85 81 04 00 00 <48> 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 49 89 fd 4c 8d 74 24
RSP: 0000:ffffc90000007160 EFLAGS: 00000246
RAX: 295fcc07cd215d00 RBX: 1ffff92000000e34 RCX: ffffffff816af0fa
RDX: dffffc0000000000 RSI: ffffffff8b0c0340 RDI: ffffffff8b5d6dc0
RBP: ffffc90000007238 R08: dffffc0000000000 R09: fffffbfff223b868
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff8d32fe00
R13: ffff8880a4cabfd8 R14: ffffc900000071a0 R15: 1ffff92000000e30
 __rcu_read_unlock+0x92/0x100 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:823 [inline]
 batadv_choose_next_candidate net/batman-adv/distributed-arp-table.c:601 [inline]
 batadv_dat_select_candidates net/batman-adv/distributed-arp-table.c:654 [inline]
 batadv_dat_forward_data+0xab5/0x1040 net/batman-adv/distributed-arp-table.c:685
 batadv_interface_tx+0xecf/0x1750 net/batman-adv/soft-interface.c:330
 __netdev_start_xmit include/linux/netdevice.h:4853 [inline]
 netdev_start_xmit include/linux/netdevice.h:4867 [inline]
 xmit_one net/core/dev.c:3627 [inline]
 dev_hard_start_xmit+0x261/0x8c0 net/core/dev.c:3643
 __dev_queue_xmit+0x1bb1/0x3cf0 net/core/dev.c:4293
 NF_HOOK+0x39d/0x450 include/linux/netfilter.h:302
 arp_solicit+0xc4d/0xe60 net/ipv4/arp.c:392
 neigh_probe net/core/neighbour.c:1075 [inline]
 neigh_timer_handler+0xa4b/0x1010 net/core/neighbour.c:1157
 call_timer_fn+0x1ad/0x6b0 kernel/time/timer.c:1504
 expire_timers kernel/time/timer.c:1549 [inline]
 __run_timers+0x67c/0x890 kernel/time/timer.c:1820
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1833
 handle_softirqs+0x2ee/0xa40 kernel/softirq.c:571
 __do_softirq kernel/softirq.c:605 [inline]
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x157/0x240 kernel/softirq.c:654
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:666
 sysvec_irq_work+0x8e/0xb0 arch/x86/kernel/irq_work.c:17
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:679
RIP: 0010:exit_to_user_mode_loop+0x3d/0x100 kernel/entry/common.c:164
Code: 49 89 fe eb 1c e8 23 ae 30 09 65 48 8b 05 bb 29 8c 7e 48 8b 18 f7 c3 0e 30 02 00 0f 84 be 00 00 00 e8 87 2c 1b 00 fb f6 c3 08 <74> 05 e8 5c 37 39 09 f7 c3 00 10 00 00 74 08 4c 89 f7 e8 6c 5f 3f
RSP: 0000:ffffc900039bff10 EFLAGS: 00000202
RAX: 295fcc07cd215d00 RBX: 0000000000000008 RCX: ffffffff97333103
RDX: dffffc0000000000 RSI: ffffffff8b0c0340 RDI: ffffffff8b5d6dc0
RBP: 0000000000000000 R08: ffffffff90141000 R09: ffffffff90141008
R10: ffffffff90141018 R11: ffffffff90141010 R12: 0000000000000000
R13: 0000000000000000 R14: ffffc900039bff58 R15: ffff8880a4cabb80
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
 irqentry_exit_to_user_mode+0x5/0x30 kernel/entry/common.c:316
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0033:0x7f631797def9
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:00007f63187640e8 EFLAGS: 00000246
RAX: 0000000000000001 RBX: 00007f6317b36060 RCX: 00007f631797def9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f6317b36064
RBP: 00007f6317b36058 R08: 0000000000000010 R09: 0000000000000000
R10: 0000000000000004 R11: 0000000000000246 R12: 00007f6317b36064
R13: 0000000000000000 R14: 00007ffe1c03eec0 R15: 00007ffe1c03efa8
 </TASK>