rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10482 ticks this GP) idle=8e24/1/0x4000000000000000 softirq=19575/19576 fqs=5247
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1182361          0            0
rcu: 	cputime:    24881      27608           79   ==> 52490(ms)
rcu: 	(t=10501 jiffies g=10509 q=4895 ncpus=2)
CPU: 0 UID: 0 PID: 6581 Comm: syz.4.233 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:arch_stack_walk+0xf4/0x150
Code: 78 ff ff ff 00 00 00 00 48 8d bd 78 ff ff ff 4c 89 e6 4c 89 fa e8 8c 56 09 00 83 bd 78 ff ff ff 00 74 38 4c 8d bd 78 ff ff ff <4c> 89 ff e8 d4 2c 09 00 48 85 c0 74 24 48 89 df 48 89 c6 4d 89 f3
RSP: 0018:ffffc90000007808 EFLAGS: 00000202
RAX: 0000000000007801 RBX: ffffc900000078c0 RCX: 6caff14f54abaf00
RDX: 0000000000000002 RSI: ffffffff8d9792e3 RDI: ffffffff8be30a00
RBP: ffffc90000007890 R08: ffffffff8fa07bf7 R09: 1ffffffff1f40f7e
R10: dffffc0000000000 R11: fffffbfff1f40f7f R12: ffff888109d80000
R13: ffffffff81a7f5d4 R14: ffffffff81ac3450 R15: ffffc90000007808
FS:  00007f5f851b26c0(0000) GS:ffff8880b8680000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe02d7f5690 CR3: 0000000026642000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 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:in_lock_functions+0x0/0x30
Code: c7 d8 c7 a1 95 e8 d0 d3 84 00 e9 61 ff ff ff cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 48 81 ff 40 5b 72 8b 0f 93 c0 48 81 ff d4 a0 72 8b 0f
RSP: 0018:ffffc90002b3f998 EFLAGS: 00000246
RAX: 0000000000000001 RBX: ffffffff8b70f1ce RCX: ffff888109d80000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8b70f1ce
RBP: ffffc90002b3fa38 R08: ffffffff8fa07bf7 R09: 1ffffffff1f40f7e
R10: dffffc0000000000 R11: fffffbfff1f40f7f R12: 0000000000000000
R13: dffffc0000000000 R14: dffffc0000000000 R15: dffffc0000000000
 preempt_schedule_common+0x43/0xd0
 preempt_schedule+0xae/0xc0
 preempt_schedule_thunk+0x16/0x30
 smp_call_function_single+0x470/0x590
 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: 0033:0x7f5f8438eb69
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:00007f5f851b2038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f5f845b5fa0 RCX: 00007f5f8438eb69
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 00002000000003c0
RBP: 00007f5f84411df1 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f5f845b5fa0 R15: 00007ffc1ae11ed8
 </TASK>
clocksource: Long readout interval, skipping watchdog check: cs_nsec: 105305305206 wd_nsec: 105305297808
