rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10380 ticks this GP) idle=b1b4/1/0x4000000000000000 softirq=60878/61236 fqs=4977
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1226470        745            0
rcu: 	cputime:    28660      23826           43   ==> 52500(ms)
rcu: 	(t=10502 jiffies g=51197 q=4736 ncpus=2)
CPU: 0 UID: 0 PID: 12805 Comm: syz.9.1802 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+0x214/0x2390
Code: ef 08 8b 15 1e 5f 4b 0c 8d 42 ff 44 39 f8 0f 86 65 18 00 00 44 89 f8 4c 8d 2c 85 78 5a e0 90 4c 89 e8 48 c1 e8 03 0f b6 04 28 <84> c0 48 89 eb 0f 85 1c 1c 00 00 45 8b 6d 00 44 89 f8 ff c0 48 8d
RSP: 0018:ffffc900000075f8 EFLAGS: 00000a06
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0a96ef006a1f5000
RDX: 00000000000a7e45 RSI: ffffffff8be33e60 RDI: ffffffff8be33e20
RBP: dffffc0000000000 R08: 0000000000000000 R09: ffffffff8172d195
R10: ffffc90000007718 R11: ffffffff81ac4d00 R12: ffffffff895bb02c
R13: ffffffff9101c938 R14: ffffc900000076c8 R15: 0000000000085bb0
FS:  00007ff21158a6c0(0000) GS:ffff8880b8613000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000004 CR3: 0000000100ec6000 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:__schedule+0x0/0x4cc0
Code: a8 f6 45 89 f8 89 d9 48 8b 5c 24 08 e9 ee fe ff ff 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 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48
RSP: 0018:ffffc900041ef6d8 EFLAGS: 00000282
RAX: 0a96ef006a1f5000 RBX: 0000000000000000 RCX: 0a96ef006a1f5000
RDX: 0000000000000007 RSI: ffffffff8d9ba4b2 RDI: 0000000000000001
RBP: ffffc900041ef780 R08: ffffffff8fa3ab37 R09: 1ffffffff1f47566
R10: dffffc0000000000 R11: fffffbfff1f47567 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff9200083dedc
 preempt_schedule_irq+0xb5/0x150
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:lock_is_held_type+0x137/0x190
Code: 01 75 44 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 75 4c 41 f7 c4 00 02 00 00 74 01 fb 65 48 8b 05 f9 53 26 07 <48> 3b 44 24 08 75 43 89 d8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f
RSP: 0018:ffffc900041ef840 EFLAGS: 00000206
RAX: 0a96ef006a1f5000 RBX: 0000000000000001 RCX: 0a96ef006a1f5000
RDX: 0000000000000000 RSI: ffffffff8dba9b84 RDI: ffffffff8be33e80
RBP: 00000000ffffffff R08: ffff888109129cc0 R09: 0000000000000006
R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000246
R13: ffff888109129cc0 R14: ffff88801fb2a220 R15: 0000000000000000
 mas_start+0x1cc/0x560
 mas_find+0x8aa/0xd30
 acct_collect+0x18c/0x770
 do_exit+0x5c3/0x2300
 do_group_exit+0x21c/0x2d0
 get_signal+0x1286/0x1340
 arch_do_signal_or_restart+0x9a/0x750
 exit_to_user_mode_loop+0x75/0x110
 do_syscall_64+0x2bd/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff21078eba9
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:00007ff21158a038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: 0000000000000047 RBX: 00007ff2109d6090 RCX: 00007ff21078eba9
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000180
RBP: 00007ff210811e19 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff2109d6128 R14: 00007ff2109d6090 R15: 00007ffe7b553748
 </TASK>
sched: DL replenish lagged too much
