rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10500 ticks this GP) idle=7c5c/1/0x4000000000000000 softirq=32087/32090 fqs=5245
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1161802          0            0
rcu: 	cputime:    25129      27360           78   ==> 52500(ms)
rcu: 	(t=10502 jiffies g=20897 q=2541 ncpus=2)
CPU: 0 UID: 0 PID: 10112 Comm: syz.4.1765 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:ffffc900000075a0 EFLAGS: 00000206
RAX: 1bbdc86c82483b00 RBX: 1ffff92000000ebc RCX: 1bbdc86c82483b00
RDX: 0000000000000003 RSI: ffffffff8d998701 RDI: ffffffff8be29f80
RBP: ffffc90000007698 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffffffff8e144400
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001
FS:  00007fca1ca926c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3211fffc CR3: 000000012a07a000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000082
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
 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:debug_lockdep_rcu_enabled+0x18/0x40
Code: cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 31 c0 83 3d 17 5a 33 04 00 74 1e 83 3d 3a 8a 33 04 00 74 15 <65> 48 8b 0c 25 08 10 a0 92 31 c0 83 b9 ec 0a 00 00 00 0f 94 c0 e9
RSP: 0018:ffffc90006f77c18 EFLAGS: 00000202
RAX: 0000000000000000 RBX: ffff88810a409f80 RCX: 0000000000000002
RDX: ffff888107d73980 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90006f77cb0 R08: 0000000000000000 R09: ffffffff823c40c7
R10: dffffc0000000000 R11: fffff52000deef91 R12: 0000000000000001
R13: 0000000000000006 R14: 1ffff92000deef84 R15: dffffc0000000000
 rcu_read_lock_sched_held+0x60/0x100
 fd_install+0x18f/0x540
 __se_sys_perf_event_open+0x1acd/0x1d70
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fca1bb8e9a9
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:00007fca1ca92038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fca1bdb5fa0 RCX: 00007fca1bb8e9a9
RDX: bfffffffffffffff RSI: 0000000000000000 RDI: 0000200000000180
RBP: 00007fca1bc10d69 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fca1bdb5fa0 R15: 00007ffcb3f02028
 </TASK>
sched: DL replenish lagged too much
