rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10488 ticks this GP) idle=ad74/1/0x4000000000000000 softirq=15837/15838 fqs=5248
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1093730          0            0
rcu: 	cputime:    25621      26878           84   ==> 52510(ms)
rcu: 	(t=10502 jiffies g=9001 q=2385 ncpus=2)
CPU: 1 UID: 0 PID: 6361 Comm: syz.1.210 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e-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:_raw_spin_unlock_irq+0x29/0x50
Code: 90 f3 0f 1e fa 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 4a 35 2d f6 48 89 df e8 a2 cc 2d f6 e8 0d 9e 56 f6 fb bf 01 00 00 00 <e8> 72 cc 1f f6 65 8b 05 1b f9 2e 07 85 c0 74 07 5b e9 81 4c 00 00
RSP: 0018:ffffc900001e0c90 EFLAGS: 00000286
RAX: 4a575582af4aa700 RBX: ffff888136625940 RCX: 4a575582af4aa700
RDX: 0000000000000000 RSI: ffffffff8d99883e RDI: 0000000000000001
RBP: ffffc900001e0e10 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffff888136625940
R13: 1ffff9200003c1ac R14: ffff888105af1c08 R15: ffffc900001e0d60
FS:  00007f68bd5456c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2534d3 CR3: 0000000120e00000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 __run_timer_base+0x60a/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 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:ffffc90002bafd80 EFLAGS: 00000282
RAX: 4a575582af4aa700 RBX: 0000000000000000 RCX: 4a575582af4aa700
RDX: 0000000000000000 RSI: ffffffff8d99883e RDI: 0000000000000001
RBP: ffffc90002bafe20 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000575fb0
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:x64_sys_call+0xdc8/0x21c0
Code: 00 81 fe 1a 01 00 00 0f 8f 27 0f 00 00 81 fe 19 01 00 00 0f 84 69 4d 16 01 81 fe 1a 01 00 00 0f 84 bd b3 16 01 e9 bf 13 00 00 <83> fe 2d 0f 8e e5 09 00 00 83 fe 2f 0f 8f 15 0f 00 00 83 fe 2e 0f
RSP: 0018:ffffc90002bafee8 EFLAGS: 00000283
RAX: 4a575582af4aa700 RBX: ffffc90002bafef0 RCX: 4a575582af4aa700
RDX: 0000000000000000 RSI: 000000000000002e RDI: ffffc90002baff58
RBP: ffffc90002baff48 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 000000000000002e
R13: 000000000000002e R14: ffffc90002baff58 R15: ffff888109c29cc0
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f68bc78e9a9
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:00007f68bd545038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f68bc9b5fa0 RCX: 00007f68bc78e9a9
RDX: 0000000000000000 RSI: 0000200000000000 RDI: 0000000000000006
RBP: 00007f68bc810d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f68bc9b5fa0 R15: 00007fff06240fa8
 </TASK>
sched: DL replenish lagged too much
