rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (1 GPs behind) idle=dacc/1/0x4000000000000000 softirq=54843/54844 fqs=4896
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1073280          0            0
rcu: 	cputime:    32704      19774           90   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=47893 q=2893 ncpus=2)
CPU: 0 UID: 0 PID: 13000 Comm: syz.6.1941 Not tainted syzkaller #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:in_gate_area_no_mm+0x4d/0x60
Code: 40 0f 95 c5 48 81 e3 00 f0 ff ff 48 c7 c7 00 00 60 ff 48 89 de e8 b3 04 8c 00 48 81 fb 00 00 60 ff 0f 94 c0 40 20 e8 0f b6 c0 <5b> 5d e9 3c 36 4a 0a cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90
RSP: 0018:ffffc900000075c0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffffffa0000000 RCX: ffff888105483980
RDX: 0000000000000100 RSI: ffffffffa0000000 RDI: ffffffffff600000
RBP: 0000000000000001 R08: 0000000000000018 R09: ffffffff8172d195
R10: dffffc0000000000 R11: fffff91fe28cfff3 R12: ffff888105483980
R13: 1ffff92000000f48 R14: dffffc0000000000 R15: 1ffff92000000ece
FS:  00007fc9163656c0(0000) GS:ffff8880b8611000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33e13ff8 CR3: 0000000037984000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 kernel_text_address+0x2d/0xe0
 __kernel_text_address+0xd/0x40
 unwind_get_return_address+0x4d/0x90
 arch_stack_walk+0xfc/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_stack+0x3e/0x60
 kasan_record_aux_stack+0xbd/0xd0
 call_rcu+0x157/0x9c0
 kmem_cache_free+0x309/0x400
 __sk_destruct+0x4d2/0x660
 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_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:bpf_prog_6c53a1984fc30528+0x9/0x23
Code: cc cc cc cc cc cc cc cc cc 40 00 00 00 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc f3 0f 1e fa 0f 1f 44 00 00 <0f> 1f 00 55 48 89 e5 f3 0f 1e fa 41 56 45 31 f6 31 c0 41 5e c9 e9
RSP: 0018:ffffc900076ef538 EFLAGS: 00000286
RAX: 1ffff92000d9f609 RBX: ffffc90006cfb060 RCX: dffffc0000000000
RDX: ffffc9002247c000 RSI: ffffc90006cfb060 RDI: ffffe8ff1464f0f8
RBP: ffffc900076ef638 R08: ffffc900076ef5cf R09: 0000000000000000
R10: ffffc900076ef5c0 R11: ffffffffa0000858 R12: ffffc90006cfb048
R13: ffff888115f6cb18 R14: ffff888115f6cb28 R15: 0000000000000001
 perf_trace_run_bpf_submit+0x78/0x170
 perf_trace_lock_acquire+0x335/0x410
 lock_acquire+0x311/0x360
 _raw_spin_lock+0x2e/0x40
 pgd_free+0x51/0x1e0
 __mmdrop+0xb5/0x570
 finish_task_switch+0x3ee/0x950
 __schedule+0x17a0/0x4cc0
 preempt_schedule_common+0x83/0xd0
 preempt_schedule+0xae/0xc0
 preempt_schedule_thunk+0x16/0x30
 _raw_spin_unlock_irqrestore+0xfd/0x110
 __se_sys_perf_event_open+0x1942/0x1d70
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc91558ec29
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:00007fc916365038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fc9157d5fa0 RCX: 00007fc91558ec29
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000040
RBP: 00007fc915611e41 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc9157d6038 R14: 00007fc9157d5fa0 R15: 00007fffe22f9438
 </TASK>
sched: DL replenish lagged too much
