rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (2689 ticks this GP) idle=d224/1/0x4000000000000000 softirq=15620/15620 fqs=4959
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   556020          1            0
rcu: 	cputime:    12838      14021           44   ==> 26860(ms)
rcu: 	(t=10500 jiffies g=8649 q=3051 ncpus=2)
CPU: 1 UID: 0 PID: 6211 Comm: syz.2.141 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: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:ffffc900001e01e0 EFLAGS: 00000206
RAX: 034029d6cb170500 RBX: 1ffff9200003c044 RCX: 034029d6cb170500
RDX: 0000000000000002 RSI: ffffffff8d99883e RDI: ffffffff8be29f40
RBP: ffffc900001e02d8 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffffffff8e144400
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000002
FS:  00007fdc7844e6c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3116f2 CR3: 000000010fa6c000 CR4: 00000000000006f0
DR0: 0000200000000300 DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __rcu_read_unlock+0x84/0xe0
 unwind_next_frame+0x19ae/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_node_noprof+0x1bb/0x3c0
 __alloc_skb+0x112/0x2d0
 arp_create+0x189/0x990
 arp_send_dst+0xa7/0x2d0
 arp_solicit+0xc1d/0xe60
 neigh_timer_handler+0xab2/0x1030
 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_irq_work+0xa3/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+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 0f 1a df 09 e8 ba b9 35 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:ffffc90002f07218 EFLAGS: 00000286
RAX: 034029d6cb170500 RBX: 0000000000000000 RCX: 034029d6cb170500
RDX: 0000000000000006 RSI: ffffffff8d99883e RDI: ffffffff8be29f40
RBP: ffffc90002f07270 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffff88810e8db980
R13: dffffc0000000000 R14: ffff888105e8b980 R15: ffff88813663ab98
 __schedule+0x16fd/0x4d00
 preempt_schedule_irq+0xb5/0x150
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:memset_orig+0x58/0xb0
Code: 00 00 48 ff c9 48 89 07 48 89 47 08 48 89 47 10 48 89 47 18 48 89 47 20 48 89 47 28 48 89 47 30 48 89 47 38 48 8d 7f 40 75 d8 <0f> 1f 84 00 00 00 00 00 89 d1 83 e1 38 74 14 c1 e9 03 66 0f 1f 44
RSP: 0018:ffffc90002f07600 EFLAGS: 00000247
RAX: 0000000000000000 RBX: ffffc90002f07668 RCX: 0000000000000000
RDX: 0000000000000060 RSI: 0000000000000000 RDI: ffffc90002f076a8
RBP: ffffc90002f076f0 R08: ffffc90002f076c7 R09: 0000000000000000
R10: ffffc90002f07668 R11: fffff520005e0ed9 R12: 0000000000000000
R13: ffff88810e8db980 R14: dffffc0000000000 R15: 0000000000000000
 __unwind_start+0x36/0x760
 arch_stack_walk+0xe4/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x46/0x50
 __kasan_slab_free+0x62/0x70
 kfree+0x18e/0x440
 ref_tracker_free+0x4dd/0x7d0
 __sk_destruct+0x3c3/0x660
 inet_release+0x144/0x190
 sock_release+0x85/0x150
 smc_clcsock_release+0xc9/0xf0
 __smc_release+0x66b/0x7e0
 smc_release+0x2ce/0x540
 sock_close+0xc3/0x240
 __fput+0x44c/0xa70
 fput_close_sync+0x119/0x200
 __x64_sys_close+0x7f/0x110
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fdc7758e9a9
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:00007fdc7844e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 00007fdc777b6080 RCX: 00007fdc7758e9a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000008
RBP: 00007fdc77610d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fdc777b6080 R15: 00007ffc73682528
 </TASK>
sched: DL replenish lagged too much
