rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-....: (10 ticks this GP) idle=7414/1/0x4000000000000000 softirq=427912/427912 fqs=39594
rcu: 	(detected by 1, t=105002 jiffies, g=379369, q=29579 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 19020 Comm: syz-executor.6 Not tainted 6.5.0-rc2-next-20230721 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:__rcu_read_unlock+0xc8/0x4f0
Code: b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e 76 01 00 00 8b 85 f8 03 00 00 85 c0 75 58 <65> 48 8b 1c 25 00 8b 03 00 48 8d bb f4 03 00 00 48 b8 00 00 00 00
RSP: 0018:ffff88806ce099f8 EFLAGS: 00000202
RAX: 000000000002beda RBX: ffff88806ce3a300 RCX: ffffffff812d4b2f
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8137b9e1
RBP: ffffffff856174c0 R08: 0000000000000001 R09: fffffbfff0efb576
R10: ffffffff877dabb7 R11: 0000000000000001 R12: 0000000000000001
R13: dffffc0000000000 R14: 0000000000000200 R15: ffff888019eedb30
FS:  00007fbba2e27700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8e80d84f64 CR3: 0000000045356000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 __is_insn_slot_addr+0x12f/0x290
 kernel_text_address+0x48/0xc0
 __kernel_text_address+0xd/0x40
 unwind_get_return_address+0x59/0xa0
 arch_stack_walk+0x9d/0xf0
 stack_trace_save+0x90/0xd0
 kasan_save_stack+0x22/0x50
 kasan_set_track+0x25/0x30
 kasan_save_free_info+0x2b/0x50
 __kasan_slab_free+0x10a/0x190
 kmem_cache_free+0x10d/0x4d0
 rcu_core+0x8c8/0x28b0
 __do_softirq+0x1b7/0x7d4
 irq_exit_rcu+0x93/0xc0
 sysvec_apic_timer_interrupt+0x6e/0x90
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:generic_exec_single+0x90/0x540
Code: 56 85 92 04 0f 92 c3 31 ff 89 de e8 5a e5 0a 00 84 db 0f 84 f4 03 00 00 e8 0d ea 0a 00 4c 89 e6 89 ef 45 31 e4 e8 10 fb ff ff <e8> fb e9 0a 00 44 89 e0 5b 5d 41 5c 41 5d 41 5e e9 8b 0f 15 03 e8
RSP: 0018:ffff88804a33fb10 EFLAGS: 00000202
RAX: 00000000000000c7 RBX: 0000000000000200 RCX: ffffffff812d4b2f
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8141c8a7
RBP: 0000000000000001 R08: 0000000000000001 R09: fffffbfff0efb576
R10: ffffffff877dabb7 R11: 0000000000000001 R12: 0000000000000000
R13: ffff88804a33fc38 R14: ffff88804a33fb88 R15: ffff88804b3fb694
 smp_call_function_single+0x327/0x410
 task_function_call+0xe5/0x180
 perf_install_in_context+0x2cb/0x570
 __do_sys_perf_event_open+0x1903/0x2ae0
 do_syscall_64+0x3f/0x90
 entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7fbba58b1b19
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fbba2e27188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fbba59c4f60 RCX: 00007fbba58b1b19
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000580
RBP: 00007fbba590bf6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffefb0be6f R14: 00007fbba2e27300 R15: 0000000000022000
 </TASK>
----------------
Code disassembly (best guess):
   0:	b8 00 00 00 00       	mov    $0x0,%eax
   5:	00 fc                	add    %bh,%ah
   7:	ff                   	(bad)
   8:	df 48 89             	fisttps -0x77(%rax)
   b:	fa                   	cli
   c:	48 c1 ea 03          	shr    $0x3,%rdx
  10:	0f b6 04 02          	movzbl (%rdx,%rax,1),%eax
  14:	84 c0                	test   %al,%al
  16:	74 08                	je     0x20
  18:	3c 03                	cmp    $0x3,%al
  1a:	0f 8e 76 01 00 00    	jle    0x196
  20:	8b 85 f8 03 00 00    	mov    0x3f8(%rbp),%eax
  26:	85 c0                	test   %eax,%eax
  28:	75 58                	jne    0x82
* 2a:	65 48 8b 1c 25 00 8b 	mov    %gs:0x38b00,%rbx <-- trapping instruction
  31:	03 00
  33:	48 8d bb f4 03 00 00 	lea    0x3f4(%rbx),%rdi
  3a:	48                   	rex.W
  3b:	b8 00 00 00 00       	mov    $0x0,%eax