rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10206 ticks this GP) idle=8e3c/1/0x4000000000000000 softirq=23914/23935 fqs=5217
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1168702        704            0
rcu: 	cputime:    29060      23435           47   ==> 52510(ms)
rcu: 	(t=10502 jiffies g=19225 q=3032 ncpus=2)
CPU: 0 UID: 0 PID: 8317 Comm: syz.7.657 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:lock_acquire+0x20b/0x2e0
Code: e9 30 ff ff ff e8 35 59 0c 0a f7 c3 00 02 00 00 0f 84 38 ff ff ff 65 48 8b 05 b1 46 7a 11 48 3b 44 24 30 75 33 fb 48 83 c4 38 <5b> 41 5c 41 5d 41 5e 41 5f 5d e9 16 3f 0f 0a cc 48 8d 3d 3e 55 73
RSP: 0018:ffffc90000007518 EFLAGS: 00000286
RAX: 2fa76f3581dd1400 RBX: 0000000000000246 RCX: 0000000000000101
RDX: 00000000a42637f2 RSI: ffffffff8e1655a0 RDI: ffffffff8c27b400
RBP: 0000000000000000 R08: ffffffff81767de5 R09: ffffffff8e75e3e0
R10: ffffc90000007678 R11: ffffffff81b0bfa0 R12: 0000000000000002
R13: ffffffff8e75e3e0 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f743f6ae6c0(0000) GS:ffff88818de63000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001940 CR3: 000000011bed0000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 unwind_next_frame+0xc2/0x23c0
 arch_stack_walk+0x11b/0x150
 stack_trace_save+0xa9/0x100
 kasan_save_track+0x3e/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_node_noprof+0x384/0x690
 __alloc_skb+0x27d/0x7d0
 __netdev_alloc_skb+0xc1/0x810
 __ieee80211_beacon_get+0xc06/0x1880
 ieee80211_beacon_get_tim+0xbd/0x2c0
 mac80211_hwsim_beacon_tx+0x3c5/0x870
 __iterate_interfaces+0x2ab/0x590
 ieee80211_iterate_active_interfaces_atomic+0xdb/0x180
 mac80211_hwsim_beacon+0xbb/0x180
 __hrtimer_run_queues+0x53a/0xcc0
 hrtimer_run_softirq+0x182/0x5a0
 handle_softirqs+0x22a/0x870
 __irq_exit_rcu+0x5f/0x150
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:preempt_schedule_irq+0x48/0xa0
Code: 49 be 00 00 00 00 00 fc ff df eb 09 48 f7 03 10 00 00 00 74 53 bf 01 00 00 00 e8 63 d5 e4 f5 e8 1e 70 1e f6 fb bf 01 00 00 00 <e8> c3 a6 ff ff 9c 58 fa a9 00 02 00 00 74 05 e8 f4 71 1e f6 bf 01
RSP: 0018:ffffc900037f7800 EFLAGS: 00000206
RAX: 000000000000063f RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8def4b84 RDI: 0000000000000001
RBP: 0000000000000000 R08: ffffffff90118bb7 R09: 1ffffffff2023176
R10: dffffc0000000000 R11: fffffbfff2023177 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
 irqentry_exit+0x599/0x620
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:memset_orig+0x3a/0xb0
Code: 01 48 0f af c1 41 89 f9 41 83 e1 07 75 74 48 89 d1 48 c1 e9 06 74 39 66 0f 1f 84 00 00 00 00 00 48 ff c9 48 89 07 48 89 47 08 <48> 89 47 10 48 89 47 18 48 89 47 20 48 89 47 28 48 89 47 30 48 89
RSP: 0018:ffffc900037f7928 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 0000000000002cc0 RCX: 0000000000000002
RDX: 0000000000000200 RSI: 0000000000000000 RDI: ffffc900037f7a70
RBP: ffffc900037f7b60 R08: dffffc0000000000 R09: 0000000000000000
R10: ffffc900037f7930 R11: ffffffff81b0bfa0 R12: ffff88810924f200
R13: 0000000000002cc0 R14: ffff88810924f2c0 R15: ffffc900037f7930
 kasan_save_track+0x2f/0x80
 __kasan_kmalloc+0x93/0xb0
 __kvmalloc_node_noprof+0x528/0x8a0
 btf_new_fd+0x282/0xd10
 __sys_bpf+0x4e5/0x950
 __x64_sys_bpf+0x7c/0x90
 do_syscall_64+0x14d/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f743e79c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f743f6ae028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f743ea15fa0 RCX: 00007f743e79c799
RDX: 0000000000000028 RSI: 0000200000000300 RDI: 0000000000000012
RBP: 00007f743e832c99 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f743ea16038 R14: 00007f743ea15fa0 R15: 00007ffca3adefd8
 </TASK>
sched: DL replenish lagged too much
