rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10498 ticks this GP) idle=4fc4/1/0x4000000000000000 softirq=32997/32997 fqs=5123
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1034221          0            0
rcu: 	cputime:    32945      19544          129   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=22445 q=4752 ncpus=2)
CPU: 0 UID: 0 PID: 9829 Comm: syz.8.1135 Not tainted 6.16.0-syzkaller-11113-gf3af62b6cee8 #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:lock_acquire+0x175/0x360
Code: 00 00 00 00 9c 8f 44 24 30 f7 44 24 30 00 02 00 00 0f 85 cd 00 00 00 f7 44 24 08 00 02 00 00 74 01 fb 65 48 8b 05 3b 06 02 11 <48> 3b 44 24 58 0f 85 f2 00 00 00 48 83 c4 60 5b 41 5c 41 5d 41 5e
RSP: 0018:ffffc90000006500 EFLAGS: 00000206
RAX: 091f0d2b3c436d00 RBX: 0000000000000000 RCX: 091f0d2b3c436d00
RDX: 0000000000000000 RSI: ffffffff8dba01e6 RDI: ffffffff8be2fd00
RBP: ffffffff81f2ea31 R08: 0000000000000000 R09: ffffffff81f2ea31
R10: ffffc90000006760 R11: fffff52000000cf3 R12: 0000000000000002
R13: ffffffff8e139e60 R14: 0000000000000000 R15: 0000000000000246
FS:  00007f3c5e98e6c0(0000) GS:ffff8880b862a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000004 CR3: 00000001302e8000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 perf_output_begin_forward+0xcd/0xa80
 perf_event_output_forward+0x2b2/0x430
 __perf_event_overflow+0x7cf/0xe10
 perf_swevent_event+0x2f4/0x5e0
 perf_tp_event+0x4f6/0x1380
 perf_trace_run_bpf_submit+0xee/0x170
 perf_trace_lock+0x2f8/0x3b0
 lock_release+0x3b2/0x3e0
 unwind_next_frame+0x19a9/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x46/0x50
 __kasan_slab_free+0x62/0x70
 kmem_cache_free+0x18f/0x400
 dummy_xmit+0x140/0x1d0
 dev_hard_start_xmit+0x2d7/0x830
 __dev_queue_xmit+0x1b8d/0x3b50
 ip6_finish_output2+0x11fe/0x16a0
 ndisc_send_skb+0xb54/0x1440
 addrconf_rs_timer+0x369/0x670
 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:finish_task_switch+0x26b/0x950
Code: 0f 84 3c 01 00 00 48 85 db 0f 85 63 01 00 00 0f 1f 44 00 00 4c 8b 75 d0 4c 89 e7 e8 6f e1 e8 09 e8 1a 28 36 00 fb 4c 8b 65 c0 <49> 8d bc 24 18 16 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0
RSP: 0018:ffffc90002a3f018 EFLAGS: 00000286
RAX: 091f0d2b3c436d00 RBX: 0000000000000000 RCX: 091f0d2b3c436d00
RDX: 0000000000000000 RSI: ffffffff8d9b1618 RDI: ffffffff8be2fd00
RBP: ffffc90002a3f070 R08: ffffffff8fa32437 R09: 1ffffffff1f46486
R10: dffffc0000000000 R11: fffffbfff1f46487 R12: ffff888107189cc0
R13: dffffc0000000000 R14: ffff88810a3bb980 R15: ffff88804b03ab58
 __schedule+0x17a0/0x4cc0
 preempt_schedule_common+0x83/0xd0
 preempt_schedule+0xae/0xc0
 preempt_schedule_thunk+0x16/0x30
 __virt_addr_valid+0x52d/0x5c0
 kasan_addr_to_slab+0xf/0x90
 kasan_record_aux_stack+0xf/0xd0
 call_rcu+0x157/0x9c0
 evict+0x847/0x9c0
 __dentry_kill+0x209/0x660
 dput+0x19f/0x2b0
 path_put+0x39/0x60
 perf_event_namespaces+0x311/0x920
 perf_event_fork+0x152/0x7d0
 copy_process+0x386a/0x3c00
 kernel_clone+0x21e/0x840
 __x64_sys_clone+0x18b/0x1e0
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3c5db8ebe9
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:00007f3c5e98dfe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f3c5ddb5fa0 RCX: 00007f3c5db8ebe9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000024084200
RBP: 00007f3c5dc11e19 R08: 0000200000001a40 R09: 0000200000001a40
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 00007f3c5ddb6038 R14: 00007f3c5ddb5fa0 R15: 00007ffcbaab8388
 </TASK>
sched: DL replenish lagged too much
