rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (1 GPs behind) idle=ed74/1/0x4000000000000000 softirq=22188/22189 fqs=4938
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1041877          0            0
rcu: 	cputime:    30832      21656           90   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=18057 q=1793 ncpus=2)
CPU: 0 UID: 0 PID: 7647 Comm: syz.1.512 Not tainted 6.17.0-rc1-syzkaller-00022-g07866544e410 #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:__kmalloc_noprof+0x14d/0x4f0
Code: 00 41 83 ff ff 74 1a 48 8b 03 48 83 f8 ff 0f 84 9f 03 00 00 48 c1 e8 3a 41 39 c7 0f 85 81 01 00 00 41 8b 44 24 28 4a 8b 1c 28 <49> 8d 4e 08 49 8b 34 24 4c 89 e8 4c 89 f2 65 48 0f c7 0e 74 5c eb
RSP: 0018:ffffc90000007620 EFLAGS: 00000246
RAX: 0000000000000200 RBX: ffff88803c0b3000 RCX: ffffffff92a22640
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffffff99b21cb8
RBP: 0000000000000920 R08: ffffffff99b21cbf R09: 1ffffffff3364397
R10: dffffc0000000000 R11: fffffbfff3364398 R12: ffff88801a441dc0
R13: ffff88803c0b7800 R14: 00000000000086b0 R15: 00000000ffffffff
FS:  00007fc12f73d6c0(0000) GS:ffff8880b861c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc12f71cd58 CR3: 0000000110cae000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 ___neigh_create+0x6d5/0x2260
 ip6_finish_output2+0xb4d/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: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 5b 98 15 f6 e8 96 f2 4c f6 fb bf 01 00 00 00 <e8> 5b ab ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0018:ffffc90003e7f900 EFLAGS: 00000286
RAX: 4c8a78cb7881b600 RBX: 0000000000000000 RCX: 4c8a78cb7881b600
RDX: 0000000000000007 RSI: ffffffff8d9b6dc3 RDI: 0000000000000001
RBP: ffffc90003e7f9a0 R08: ffffffff8fa37e37 R09: 1ffffffff1f46fc6
R10: dffffc0000000000 R11: fffffbfff1f46fc7 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920007cff20
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:number+0x5/0xf60
Code: ad f6 e9 31 fb ff ff 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 <48> 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec e0 00 00
RSP: 0018:ffffc90003e7fa60 EFLAGS: 00000246
RAX: 1ffff920007cff65 RBX: dffffc0000000000 RCX: ffffffffffff1000
RDX: 0000000000005452 RSI: ffffc90003e7fc80 RDI: ffffc90003e7fc42
RBP: ffffffff8bdc5045 R08: ffff8880218f5640 R09: 0000000000000008
R10: 0000000000000007 R11: 0000000000000000 R12: ffffc90003e7fb28
R13: ffffc90003e7fc42 R14: 0000000000000801 R15: 0000000000005452
 vsnprintf+0x91b/0xf00
 snprintf+0xda/0x120
 tomoyo_path_number_perm+0x3c6/0x5a0
 security_file_ioctl+0xcb/0x2d0
 __se_sys_ioctl+0x47/0x170
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc12e98ebe9
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:00007fc12f73d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fc12ebb5fa0 RCX: 00007fc12e98ebe9
RDX: 00002000000006c0 RSI: 0000000000005452 RDI: 0000000000000003
RBP: 00007fc12ea11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc12ebb6038 R14: 00007fc12ebb5fa0 R15: 00007ffc5d3b85e8
 </TASK>
sched: DL replenish lagged too much
clocksource: Long readout interval, skipping watchdog check: cs_nsec: 104402516496 wd_nsec: 104402524176
