rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10430 ticks this GP) idle=0da4/1/0x4000000000000000 softirq=20645/20646 fqs=4908
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1103394          0            0
rcu: 	cputime:    25875      26613           84   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=13253 q=2212 ncpus=2)
CPU: 1 UID: 0 PID: 7583 Comm: syz.1.751 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: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:ffffc900001e0600 EFLAGS: 00000206
RAX: af10c7e95895b300 RBX: 1ffff9200003c0c8 RCX: af10c7e95895b300
RDX: 0000000000000002 RSI: ffffffff8d99883e RDI: ffffffff8be29f40
RBP: ffffc900001e06f8 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffffffff8e144400
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000002
FS:  00007fadf7e566c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fadf7e55fc8 CR3: 00000001065ea000 CR4: 00000000000006f0
DR0: 0000000000000000 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
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x46/0x50
 __kasan_slab_free+0x62/0x70
 slab_free_after_rcu_debug+0x129/0x2a0
 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:smp_call_function_single+0x370/0x590
Code: 89 7b 0e 48 89 de e8 4f 02 00 00 41 89 c4 45 85 ff 74 44 44 89 24 24 0f 1f 44 00 00 4d 89 f7 48 83 c3 08 49 89 dc 49 c1 ec 03 <43> 0f b6 04 2c 84 c0 0f 85 46 01 00 00 44 8b 33 44 89 f6 83 e6 01
RSP: 0018:ffffc90007047aa0 EFLAGS: 00000a02
RAX: 0000000000000000 RBX: ffffc90007047ae8 RCX: af10c7e95895b300
RDX: ffffc90007fe9000 RSI: 00000000000002e3 RDI: 00000000000002e4
RBP: ffffc90007047b90 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 1ffff92000e08f5d
R13: dffffc0000000000 R14: 1ffff92000e08f58 R15: 1ffff92000e08f58
 perf_install_in_context+0x593/0x8f0
 __se_sys_perf_event_open+0x193a/0x1d70
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fadf6f8e9a9
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:00007fadf7e56038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fadf71b6080 RCX: 00007fadf6f8e9a9
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000180
RBP: 00007fadf7010d69 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fadf71b6080 R15: 00007ffeda72c5b8
 </TASK>
sched: DL replenish lagged too much
