rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10499 ticks this GP) idle=a004/1/0x4000000000000000 softirq=119181/119182 fqs=4346
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1041155          0            0
rcu: 	cputime:    23980      28489           81   ==> 52470(ms)
rcu: 	(t=10500 jiffies g=99209 q=2793 ncpus=2)
CPU: 0 UID: 0 PID: 23653 Comm: syz.8.4654 Not tainted 6.16.0-syzkaller-06600-g1dbf1d590d10 #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:__kernel_text_address+0x4/0x40
Code: 7c c1 48 c7 c7 80 39 a0 8f e8 e8 48 96 00 eb b3 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 <53> 48 89 fb e8 43 00 00 00 85 c0 0f 95 c0 48 81 fb 00 60 05 91 0f
RSP: 0018:ffffc900000077c0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffc90000007830 RCX: eb018f5f9efd0f00
RDX: 0000000000000000 RSI: ffffffff8d9792e3 RDI: ffffffff810014ca
RBP: ffffc90000007870 R08: ffffffff8fa07bf7 R09: 1ffffffff1f40f7e
R10: dffffc0000000000 R11: fffffbfff1f40f7f R12: ffff88811bb20000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000000f06
FS:  00007f0ef7f836c0(0000) GS:ffff8880b8680000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c230007 CR3: 0000000128eea000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 unwind_get_return_address+0x4d/0x90
 arch_stack_walk+0xfc/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x46/0x50
 __kasan_slab_free+0x62/0x70
 kmem_cache_free+0x18f/0x400
 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:_raw_spin_unlock_irqrestore+0xa8/0x110
Code: 74 05 e8 6b dd 54 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> 13 b6 1d f6 65 8b 05 0c a0 27 07 85 c0 74 40 48 c7 04 24 0e 36
RSP: 0018:ffffc9000a007aa0 EFLAGS: 00000206
RAX: eb018f5f9efd0f00 RBX: 0000000000000a02 RCX: eb018f5f9efd0f00
RDX: 0000000000000000 RSI: ffffffff8d9792e3 RDI: 0000000000000001
RBP: ffffc9000a007b30 R08: ffffffff8fa07bf7 R09: 1ffffffff1f40f7e
R10: dffffc0000000000 R11: fffffbfff1f40f7f R12: dffffc0000000000
R13: 1ffff110096075b6 R14: ffff88810ad6e050 R15: 1ffff92001400f54
 try_to_wake_up+0x7b6/0x1290
 wake_up_q+0x85/0xd0
 futex_wake+0x4a0/0x560
 do_futex+0x395/0x420
 __se_sys_futex+0x36f/0x400
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0ef718ebe9
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:00007f0ef7f830e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f0ef73b5fa8 RCX: 00007f0ef718ebe9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f0ef73b5fac
RBP: 00007f0ef73b5fa0 R08: 7fffffffffffffff R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0ef73b6038 R14: 00007ffdd2bcb5c0 R15: 00007ffdd2bcb6a8
 </TASK>
