rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10501 ticks this GP) idle=737c/1/0x4000000000000000 softirq=15487/15561 fqs=5250
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1026566          0            0
rcu: 	cputime:    25529      26970           94   ==> 52510(ms)
rcu: 	(t=10502 jiffies g=7709 q=1257 ncpus=2)
CPU: 1 UID: 0 PID: 6497 Comm: syz.1.190 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_irqrestore+0xa8/0x110
Code: 74 05 e8 5b 9e 56 f6 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 4f f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> a3 cc 1f f6 65 8b 05 bc f9 2e 07 85 c0 74 40 48 c7 04 24 0e 36
RSP: 0018:ffffc900001e09e0 EFLAGS: 00000206
RAX: 17cf2a3d778abd00 RBX: 0000000000000a06 RCX: 17cf2a3d778abd00
RDX: 0000000000000002 RSI: ffffffff8d998874 RDI: 0000000000000001
RBP: ffffc900001e0a70 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: dffffc0000000000
R13: ffff888028e5e0a8 R14: ffffffff99ccb538 R15: 1ffff9200003c13c
FS:  00007fcef83f26c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c38240d CR3: 00000000257e8000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 debug_object_assert_init+0x20e/0x380
 __mod_timer+0x4a/0xf30
 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 1b 2d 21 f6 e8 56 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:ffffc9000896fd40 EFLAGS: 00000286
RAX: 17cf2a3d778abd00 RBX: 0000000000000000 RCX: 17cf2a3d778abd00
RDX: 0000000000000000 RSI: ffffffff8d998874 RDI: 0000000000000001
RBP: ffffc9000896fdf0 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff9200112dfa8
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:__se_sys_ioctl+0xd2/0x170
Code: 6e 48 4c 89 e8 48 c1 e8 03 80 3c 28 00 74 08 4c 89 ef e8 01 40 ea ff 4d 8b 6d 00 49 83 c5 50 4c 89 e8 48 c1 e8 03 80 3c 28 00 <74> 08 4c 89 ef e8 e4 3f ea ff 4d 8b 6d 00 4d 85 ed 74 40 e8 06 1c
RSP: 0018:ffffc9000896feb8 EFLAGS: 00000246
RAX: 1ffffffff1838886 RBX: ffff88811b9abc01 RCX: 0000000000000002
RDX: ffff88810b450000 RSI: 00000000fffffdfd RDI: 00000000fffffdfd
RBP: dffffc0000000000 R08: ffff88810b450000 R09: 0000000000000013
R10: 00000000c020660b R11: 0000000000000002 R12: 00000000400454cd
R13: ffffffff8c1c4430 R14: ffff88811b9abc00 R15: 000000000000ffff
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fcef758e9a9
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:00007fcef83f2038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fcef77b5fa0 RCX: 00007fcef758e9a9
RDX: 000000000000ffff RSI: 00000000400454cd RDI: 0000000000000007
RBP: 00007fcef7610d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fcef77b5fa0 R15: 00007fff1d9d90f8
 </TASK>
sched: DL replenish lagged too much
