rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (1 GPs behind) idle=f934/1/0x4000000000000000 softirq=38883/38884 fqs=5247
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1104683          0            0
rcu: 	cputime:    25734      26745          208   ==> 52490(ms)
rcu: 	(t=10501 jiffies g=31409 q=31977 ncpus=2)
CPU: 1 UID: 0 PID: 10705 Comm: syz.4.1322 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e-dirty #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:_raw_spin_unlock_irqrestore+0xa8/0x110
Code: 74 05 e8 cb 9e 56 f6 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 4f f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 13 cd 1f f6 65 8b 05 bc f9 2e 07 85 c0 74 40 48 c7 04 24 0e 36
RSP: 0018:ffffc900001e0860 EFLAGS: 00000206
RAX: a41b44ce94861100 RBX: 0000000000000a06 RCX: a41b44ce94861100
RDX: 0000000000000002 RSI: ffffffff8d99883e RDI: 0000000000000001
RBP: ffffc900001e08e0 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: dffffc0000000000
R13: ffff888043d69c00 R14: ffffffff99d3c560 R15: 1ffff9200003c10c
FS:  00007f3ebb4256c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000044f56000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000200000000300 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 debug_check_no_obj_freed+0x451/0x470
 kfree+0x112/0x440
 skb_release_data+0x62d/0x7c0
 sk_skb_reason_drop+0x127/0x170
 neigh_invalidate+0x3a2/0x460
 neigh_timer_handler+0x913/0x1030
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0xb7/0x180
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:generic_exec_single+0x481/0x500
Code: 75 11 e8 62 7f 0b 00 48 85 db 75 16 e8 58 7f 0b 00 eb 15 e8 51 7f 0b 00 e8 7c df b9 09 48 85 db 74 ea e8 42 7f 0b 00 fb 31 c0 <48> c7 44 24 20 0e 36 e0 45 4b c7 04 2c 00 00 00 00 66 43 c7 44 2c
RSP: 0018:ffffc9000449f9c0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000200 RCX: 0000000000080000
RDX: ffffc9002bfe2000 RSI: 0000000000000309 RDI: 000000000000030a
RBP: ffffc9000449fa90 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 1ffff92000893f3c
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92000893f5d
 smp_call_function_single+0x351/0x590
 perf_install_in_context+0x593/0x8f0
 __se_sys_perf_event_open+0x193a/0x1d70
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3eba58e9a9
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:00007f3ebb425038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f3eba7b6080 RCX: 00007f3eba58e9a9
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 00002000000003c0
RBP: 00007f3eba610d69 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f3eba7b6080 R15: 00007ffe95cca4a8
 </TASK>
sched: DL replenish lagged too much
