rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-....: (1 GPs behind) idle=0984/1/0x4000000000000000 softirq=21312/21321 fqs=5250
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1290182          0            0
rcu: 	cputime:    16189      36316            0   ==> 52500(ms)
rcu: 	(detected by 0, t=10502 jiffies, g=14633, q=570 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 5871 Comm: kworker/u8:4 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: bat_events batadv_nc_worker
RIP: 0010:debug_lockdep_rcu_enabled+0x0/0x40
Code: 86 86 15 f6 90 0f 0b 90 90 90 eb c4 cc cc cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 31 c0 83 3d 17 5a 33 04 00 74 1e 83 3d 3a 8a 33 04 00
RSP: 0018:ffffc900001e0b18 EFLAGS: 00000092
RAX: 8eb1e0bce0097600 RBX: 0000000000000000 RCX: 8eb1e0bce0097600
RDX: 0000000000000001 RSI: ffffffff8db86553 RDI: ffffffff8be29f40
RBP: ffffc900001e0c18 R08: 0000000000000000 R09: ffffffff81cb5957
R10: ffffe8ffffa2300c R11: fffff91ffff44603 R12: ffffe8ffffa23000
R13: 1ffff9200003c170 R14: ffffffff81cb5957 R15: ffffffff8e1a0360
FS:  0000000000000000(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa25ff95fc8 CR3: 000000000df38000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 trace_call_bpf+0xdd/0x850
 perf_trace_run_bpf_submit+0x78/0x170
 perf_trace_preemptirq_template+0x280/0x340
 trace_irq_enable+0xee/0x110
 trace_hardirqs_on+0x18/0x40
 irqentry_exit+0x74/0x90
 asm_sysvec_irq_work+0x1a/0x20
RIP: 0010:handle_softirqs+0x1b0/0x870
Code: 89 64 24 30 0f b7 db 48 c7 c7 00 ad 89 8b e8 a7 ee e8 09 65 66 c7 05 85 5b 1a 11 00 00 e8 58 00 42 00 fb 49 c7 c7 c0 c0 e0 8d <b8> ff ff ff ff 0f bc c3 41 89 c5 41 ff c5 0f 84 c2 03 00 00 89 5c
RSP: 0018:ffffc900001e0e40 EFLAGS: 00000286
RAX: 8eb1e0bce0097600 RBX: 0000000000000200 RCX: 8eb1e0bce0097600
RDX: 0000000000000002 RSI: ffffffff8d998836 RDI: ffffffff8be29f40
RBP: ffffc900001e0f50 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 000000000000000a
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff8de0c0c0
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_irq_work+0xa3/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x1a/0x20
RIP: 0010:rcu_read_unlock_special+0x87/0x4c0
Code: f1 f1 f1 00 f2 f2 f2 4a 89 04 2b 66 42 c7 44 2b 09 f3 f3 42 c6 44 2b 0b f3 65 44 8b 35 62 2c f8 10 41 f7 c6 00 00 f0 00 74 49 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b
RSP: 0018:ffffc9000388ee80 EFLAGS: 00000206
RAX: 8eb1e0bce0097600 RBX: 1ffff92000711dd8 RCX: 8eb1e0bce0097600
RDX: 0000000000000006 RSI: ffffffff8d998836 RDI: ffffffff8be29f40
RBP: ffffc9000388ef78 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffffffff8e144400
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000002
 __rcu_read_unlock+0x84/0xe0
 unwind_next_frame+0x19ae/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_stack+0x3e/0x60
 kasan_record_aux_stack+0xbd/0xd0
 call_rcu+0x157/0x9c0
 __schedule+0x16fd/0x4d00
 preempt_schedule_irq+0xb5/0x150
 irqentry_exit+0x6f/0x90
 asm_sysvec_call_function_single+0x1a/0x20
RIP: 0010:__local_bh_enable_ip+0x135/0x1c0
Code: 8b e8 8f f2 e8 09 65 66 8b 05 6f 5f 1a 11 66 85 c0 75 5a bf 01 00 00 00 e8 a8 32 0b 00 e8 33 04 42 00 fb 65 8b 05 4b 5f 1a 11 <85> c0 75 05 e8 82 f5 ad ff 48 c7 04 24 0e 36 e0 45 4b c7 04 37 00
RSP: 0018:ffffc9000388f8e0 EFLAGS: 00000282
RAX: 0000000080000000 RBX: 0000000000000201 RCX: 8eb1e0bce0097600
RDX: 0000000000000006 RSI: ffffffff8d998836 RDI: ffffffff8be29f40
RBP: ffffc9000388f978 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffffffff8b3cc1e8
R13: dffffc0000000000 R14: dffffc0000000000 R15: 1ffff92000711f1c
 batadv_nc_purge_paths+0x318/0x3b0
 batadv_nc_worker+0x369/0x610
 process_scheduled_works+0xae1/0x17b0
 worker_thread+0x8a0/0xda0
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
