rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10482 ticks this GP) idle=bb34/1/0x4000000000000000 softirq=34012/34340 fqs=5170
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1246051       1106            0
rcu: 	cputime:    31705      20790           43   ==> 52510(ms)
rcu: 	(t=10502 jiffies g=26389 q=2457 ncpus=2)
CPU: 0 UID: 0 PID: 8553 Comm: syz.2.690 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:unwind_next_frame+0x3ba/0x2390
Code: 0f b6 44 24 01 83 e0 07 0f 84 75 15 00 00 83 f8 01 4c 8b 7c 24 48 48 bd 00 00 00 00 00 fc ff df 4c 8b 64 24 20 4c 8b 6c 24 50 <0f> 84 81 15 00 00 e9 fa 00 00 00 4c 89 e7 e8 83 ee 37 00 48 85 c0
RSP: 0018:ffffc900000075f8 EFLAGS: 00000202
RAX: 0000000000000002 RBX: ffffffff9027a4c0 RCX: ffffffff9027a4c4
RDX: ffffffff90dbb8fa RSI: ffffffff90dbb8fa RDI: ffffffff8be33da0
RBP: dffffc0000000000 R08: 000000000000000f R09: ffffffff8172d195
R10: ffffc90000007718 R11: ffffffff81ac4d00 R12: 1ffff92000000ed9
R13: ffffc90000007718 R14: ffffc900000076c8 R15: ffffffff8172d195
FS:  00007ff01fbeb6c0(0000) GS:ffff8880b8613000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001440 CR3: 00000001100a8000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x46/0x50
 __kasan_slab_free+0x5b/0x80
 kmem_cache_free+0x18f/0x400
 skb_release_data+0x62d/0x7c0
 consume_skb+0x9e/0xf0
 mac80211_hwsim_beacon_tx+0x3f0/0x860
 __iterate_interfaces+0x2ab/0x590
 ieee80211_iterate_active_interfaces_atomic+0xdb/0x180
 mac80211_hwsim_beacon+0xbb/0x1c0
 __hrtimer_run_queues+0x52c/0xc60
 hrtimer_run_softirq+0x187/0x2b0
 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:rcu_read_unlock_special+0x87/0x4b0
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 d2 a2 f9 10 41 f7 c6 00 00 f0 00 74 49 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b
RSP: 0018:ffffc9000256f0e0 EFLAGS: 00000206
RAX: 8c41c6863a883d00 RBX: 1ffff920004ade20 RCX: 8c41c6863a883d00
RDX: 0000000000000000 RSI: ffffffff8d9ba14a RDI: ffffffff8be33e00
RBP: ffffc9000256f1b8 R08: ffffffff8fa3a837 R09: 1ffffffff1f47506
R10: dffffc0000000000 R11: fffffbfff1f47507 R12: ffffffff8e13f400
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001
 __rcu_read_unlock+0x84/0xe0
 unwind_next_frame+0x19ae/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 save_stack+0xf5/0x1f0
 __reset_page_owner+0x71/0x1f0
 __free_frozen_pages+0xbc4/0xd30
 pagetable_dtor_free+0x2d2/0x3b0
 __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
 __kmalloc_cache_noprof+0x2b7/0x3d0
 bpf_prog_alloc_no_stats+0xdb/0x4d0
 bpf_prog_alloc+0x3c/0x1a0
 bpf_prog_load+0x735/0x1930
 __sys_bpf+0x528/0x870
 __x64_sys_bpf+0x7c/0x90
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff01ed8eba9
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:00007ff01fbeb038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007ff01efd6090 RCX: 00007ff01ed8eba9
RDX: 0000000000000094 RSI: 0000200000000840 RDI: 0000000000000005
RBP: 00007ff01ee11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff01efd6128 R14: 00007ff01efd6090 R15: 00007ffc3dc6e938
 </TASK>
sched: DL replenish lagged too much
