rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10500 ticks this GP) idle=8b94/1/0x4000000000000000 softirq=35273/35273 fqs=5249
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   983655          0            0
rcu: 	cputime:    25380      27109           95   ==> 52500(ms)
rcu: 	(t=10501 jiffies g=27845 q=1671 ncpus=2)
CPU: 1 UID: 0 PID: 10002 Comm: syz.0.1079 Not tainted 6.16.0-syzkaller-06600-g1dbf1d590d10 #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 b2 e8 f2 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:ffffc900001e04e0 EFLAGS: 00000206
RAX: cad6d4b9b1992700 RBX: 1ffff9200003c0a4 RCX: cad6d4b9b1992700
RDX: 0000000000000002 RSI: ffffffff8d9792e3 RDI: ffffffff8be30a00
RBP: ffffc900001e05d8 R08: ffffffff8fa07bf7 R09: 1ffffffff1f40f7e
R10: dffffc0000000000 R11: fffffbfff1f40f7f R12: ffffffff8e141800
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000002
FS:  00007f92e107c6c0(0000) GS:ffff8881a3c80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000000 CR3: 00000000221fa000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 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_save_free_info+0x46/0x50
 __kasan_slab_free+0x62/0x70
 kmem_cache_free+0x18f/0x400
 __tlb_remove_table+0x81/0x3b0
 tlb_remove_table_rcu+0x85/0x100
 rcu_core+0xca8/0x1710
 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:preempt_schedule_irq+0xb0/0x150
Code: 24 20 f6 44 24 21 02 74 0c 90 0f 0b 48 f7 03 08 00 00 00 74 64 bf 01 00 00 00 e8 eb 1f 1f f6 e8 c6 48 56 f6 fb bf 01 00 00 00 <e8> eb aa ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0018:ffffc90008a371a0 EFLAGS: 00000286
RAX: cad6d4b9b1992700 RBX: 0000000000000000 RCX: cad6d4b9b1992700
RDX: 0000000000000006 RSI: ffffffff8d9792e3 RDI: 0000000000000001
RBP: ffffc90008a37250 R08: ffffffff8fa07bf7 R09: 1ffffffff1f40f7e
R10: dffffc0000000000 R11: fffffbfff1f40f7f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92001146e34
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:__ipv6_addr_type+0x2a/0x2f0
Code: f3 0f 1e fa 55 41 57 41 56 41 54 53 48 89 fb 49 bf 00 00 00 00 00 fc ff df e8 62 15 7f f7 48 89 d8 48 c1 e8 03 42 0f b6 04 38 <84> c0 0f 85 2b 02 00 00 44 8b 23 45 89 e6 41 81 e6 e0 00 00 00 4c
RSP: 0018:ffffc90008a37310 EFLAGS: 00000a07
RAX: 0000000000000000 RBX: ffffc90008a37504 RCX: ffff8881079fd640
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc90008a37504
RBP: ffffc90008a37418 R08: ffff88803afea5ab R09: 1ffff110075fd4b5
R10: dffffc0000000000 R11: ffffed10075fd4b6 R12: ffffc90008a374e0
R13: ffff88810f83a0c8 R14: 0000000000000cc0 R15: dffffc0000000000
 ip6_route_info_create_nh+0x26f/0xab0
 ip6_route_add+0x6e/0x1b0
 add_v4_addrs+0x8b3/0xbd0
 addrconf_init_auto_addrs+0x2c4/0xa30
 addrconf_notify+0xacc/0x1010
 notifier_call_chain+0x1b6/0x3e0
 netif_open+0xfd/0x170
 dev_open+0x125/0x260
 addrconf_set_dstaddr+0x28a/0x2d0
 inet6_ioctl+0x152/0x280
 sock_do_ioctl+0xdc/0x300
 sock_ioctl+0x576/0x790
 __se_sys_ioctl+0xfc/0x170
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f92e018ebe9
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:00007f92e107c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f92e03b5fa0 RCX: 00007f92e018ebe9
RDX: 0000200000000000 RSI: 0000000000008918 RDI: 0000000000000000
RBP: 00007f92e0211e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f92e03b6038 R14: 00007f92e03b5fa0 R15: 00007ffd9f753698
 </TASK>
sched: DL replenish lagged too much
