rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (1 GPs behind) idle=1c6c/1/0x4000000000000000 softirq=20781/20782 fqs=4648
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1041017          0            0
rcu: 	cputime:    24021      28458           83   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=11397 q=2102 ncpus=2)
CPU: 0 UID: 0 PID: 7302 Comm: syz.1.651 Not tainted 6.16.0-rc6-syzkaller-00434-gcd7c97f4584a-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 92 37 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:ffffc900000075c0 EFLAGS: 00000206
RAX: ef16448495f76d00 RBX: 1ffff92000000ec0 RCX: ef16448495f76d00
RDX: 0000000000000000 RSI: ffffffff8d99873a RDI: ffffffff8be29f80
RBP: ffffc900000076b8 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffffffff8e144400
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001
FS:  00007f8420a3f6c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30414ff8 CR3: 000000002940e000 CR4: 00000000000006f0
DR0: 00000000000000fd 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
 save_stack+0xf5/0x1f0
 __reset_page_owner+0x71/0x1f0
 __free_frozen_pages+0xc71/0xe70
 __tlb_remove_table+0x2d2/0x3b0
 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:__x64_sys_ioctl+0x2d/0x80
Code: fa 41 57 41 56 41 54 53 48 89 fb 49 bc 00 00 00 00 00 fc ff df e8 93 1d 87 ff 48 8d 7b 70 48 89 f8 48 c1 e8 03 42 80 3c 20 00 <74> 05 e8 1c 41 ea ff 4c 8b 73 70 48 8d 7b 68 48 89 f8 48 c1 e8 03
RSP: 0018:ffffc9000304fec8 EFLAGS: 00000246
RAX: 1ffff92000609ff9 RBX: ffffc9000304ff58 RCX: 0000000000080000
RDX: ffffc90008b24000 RSI: 0000000000000010 RDI: ffffc9000304ffc8
RBP: ffffc9000304ff48 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: dffffc0000000000
R13: 0000000000000010 R14: ffffc9000304ff58 R15: ffff8880249f5640
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f841fb8e9a9
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:00007f8420a3f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f841fdb5fa0 RCX: 00007f841fb8e9a9
RDX: 0000200000000080 RSI: 0000000000008b06 RDI: 0000000000000009
RBP: 00007f841fc10d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f841fdb5fa0 R15: 00007ffcd79be8c8
 </TASK>
sched: DL replenish lagged too much
