rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10500 ticks this GP) idle=9ef4/1/0x4000000000000000 softirq=15616/15619 fqs=5011
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   976978          0            0
rcu: 	cputime:    24357      28122           91   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=7493 q=2769 ncpus=2)
CPU: 1 UID: 0 PID: 6041 Comm: syz.2.63 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:ffffc900001e05a0 EFLAGS: 00000206
RAX: 5f2a10af83e77200 RBX: 1ffff9200003c0bc RCX: 5f2a10af83e77200
RDX: 0000000000000003 RSI: ffffffff8d998836 RDI: ffffffff8be29f40
RBP: ffffc900001e0698 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffffffff8e144400
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000002
FS:  00007f1b9bb3e6c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000352be000 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_save_free_info+0x46/0x50
 __kasan_slab_free+0x62/0x70
 kfree+0x18e/0x440
 slab_free_after_rcu_debug+0x60/0x2a0
 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:__schedule+0x196/0x4d00
Code: 24 49 8d 5e 20 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 39 eb b3 f6 48 8b 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 <74> 08 48 89 df e8 20 eb b3 f6 48 81 3b 9d 6e ac 57 0f 85 26 18 00
RSP: 0018:ffffc900043bf280 EFLAGS: 00000246
RAX: 1ffff92000877000 RBX: ffffc900043b8000 RCX: 5f2a10af83e77200
RDX: 0000000000000000 RSI: ffffffff8be29f20 RDI: ffffffff8be29ee0
RBP: ffffc900043bf490 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffff88813663aac8
R13: dffffc0000000000 R14: ffff888106d39cc0 R15: ffff8881a3c1f000
 preempt_schedule_irq+0xb5/0x150
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:rcu_read_unlock_special+0xdf/0x4c0
Code: 00 0f 85 65 03 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d e9 81 7f c9 09 cc 49 89 ff 48 c7 84 24 80 00 00 00 00 00 00 00 <9c> 8f 84 24 80 00 00 00 4c 8b a4 24 80 00 00 00 fa 41 f7 c4 00 02
RSP: 0018:ffffc900043bf600 EFLAGS: 00000246
RAX: f2f2f200f1f1f1f1 RBX: 1ffff92000877ec8 RCX: 5f2a10af83e77200
RDX: 0000000000000001 RSI: ffffffff8db86553 RDI: ffff888106d39cc0
RBP: ffffc900043bf6f8 R08: ffffc900043bf867 R09: 0000000000000000
R10: ffffc900043bf858 R11: fffff52000877f0d R12: 1ffff11020da7420
R13: dffffc0000000000 R14: 0000000080000000 R15: ffff888106d39cc0
 __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
 kfree+0x18e/0x440
 tomoyo_path_number_perm+0x47a/0x5a0
 security_file_ioctl+0xcb/0x2d0
 __se_sys_ioctl+0x47/0x170
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1b9ad8e9a9
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:00007f1b9bb3e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f1b9afb5fa0 RCX: 00007f1b9ad8e9a9
RDX: 0000200000000040 RSI: 00000000000089e0 RDI: 0000000000000008
RBP: 00007f1b9ae10d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1b9afb5fa0 R15: 00007ffc3d2cc6a8
 </TASK>
sched: DL replenish lagged too much
clocksource: Long readout interval, skipping watchdog check: cs_nsec: 104954850683 wd_nsec: 104954853160
