rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10500 ticks this GP) idle=baec/1/0x4000000000000000 softirq=14437/14437 fqs=5247
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1108582          1            0
rcu: 	cputime:    25352      27147           84   ==> 52510(ms)
rcu: 	(t=10502 jiffies g=7429 q=2869 ncpus=2)
CPU: 1 UID: 0 PID: 5948 Comm: syz.0.26 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e #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:ffffc900001e0500 EFLAGS: 00000206
RAX: 72c81cc27b702b00 RBX: 1ffff9200003c0a8 RCX: 72c81cc27b702b00
RDX: 0000000000000002 RSI: ffffffff8d998836 RDI: ffffffff8be29f40
RBP: ffffc900001e05f8 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffffffff8e144400
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000002
FS:  00007f4fc0e6d6c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000114238000 CR4: 00000000000006f0
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
 wg_packet_send_keepalive+0x65/0x2c0
 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: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 8b 2d 21 f6 e8 c6 00 58 f6 fb bf 01 00 00 00 <e8> 1b ab ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0018:ffffc90004cbf900 EFLAGS: 00000286
RAX: 72c81cc27b702b00 RBX: 0000000000000000 RCX: 72c81cc27b702b00
RDX: 0000000000000007 RSI: ffffffff8d998836 RDI: 0000000000000001
RBP: ffffc90004cbf9b0 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000997f20
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:vsnprintf+0x8d8/0xf00
Code: f6 48 8b 0c 24 48 89 c8 48 c1 e8 03 80 3c 18 00 74 0d 48 8b 3c 24 e8 47 9c b8 f6 48 8b 0c 24 4c 8b 21 49 8d 44 24 08 48 89 01 <4c> 89 e0 48 c1 e8 03 80 3c 18 00 74 08 4c 89 e7 e8 23 9c b8 f6 4d
RSP: 0018:ffffc90004cbfa70 EFLAGS: 00000212
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff8880220cb980
RDX: 0000000000000000 RSI: 0000000000000018 RDI: 0000000000000029
RBP: ffffffff8bdc0645 R08: ffff8880220cb980 R09: 0000000000000008
R10: 0000000000000007 R11: 0000000000000000 R12: ffffc90004cbfb28
R13: ffffc90004cbfc42 R14: 0000000000000801 R15: 0000000000000020
 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: 0033:0x7f4fbff8e9a9
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:00007f4fc0e6d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f4fc01b5fa0 RCX: 00007f4fbff8e9a9
RDX: fffffffffffffffd RSI: 0000000000002403 RDI: 0000000000000007
RBP: 00007f4fc0010d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f4fc01b5fa0 R15: 00007ffe23751ea8
 </TASK>
sched: DL replenish lagged too much
