rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10499 ticks this GP) idle=27dc/1/0x4000000000000000 softirq=14979/15189 fqs=5048
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   942745        680            0
rcu: 	cputime:    36730      15756           62   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=7789 q=2650 ncpus=2)
CPU: 1 UID: 0 PID: 6189 Comm: syz.2.94 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e-dirty #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+0x175/0x360
Code: 00 00 00 00 9c 8f 44 24 30 f7 44 24 30 00 02 00 00 0f 85 cd 00 00 00 f7 44 24 08 00 02 00 00 74 01 fb 65 48 8b 05 9b d3 01 11 <48> 3b 44 24 58 0f 85 f2 00 00 00 48 83 c4 60 5b 41 5c 41 5d 41 5e
RSP: 0018:ffffc900001e02d8 EFLAGS: 00000206
RAX: 538a8b5d8cff9100 RBX: 0000000000000000 RCX: 538a8b5d8cff9100
RDX: 0000000000000000 RSI: ffffffff8db8655b RDI: ffffffff8be29f40
RBP: ffffffff8172aae5 R08: 0000000000000000 R09: ffffffff8172aae5
R10: ffffc900001e0120 R11: ffffffff81ad0050 R12: 0000000000000002
R13: ffffffff8e13f0e0 R14: 0000000000000000 R15: 0000000000000246
FS:  00007f5637a526c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c284f8d CR3: 000000010d956000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 unwind_next_frame+0xc2/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_node_noprof+0x1bb/0x3c0
 kmalloc_reserve+0xbd/0x290
 __alloc_skb+0x142/0x2d0
 skb_copy+0x188/0x800
 mac80211_hwsim_tx_frame_no_nl+0xcd3/0x11c0
 mac80211_hwsim_tx_frame+0x1b5/0x200
 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_irq_work+0xa3/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x1a/0x20
RIP: 0010:raw_spin_rq_unlock_irq+0x13/0x90
Code: cc e8 c1 72 db 09 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 41 57 41 56 53 66 90 e8 14 00 de 09 e8 bf 9f 34 00 fb 5b <41> 5e 41 5f e9 44 4e de 09 cc f3 0f 1e fa 49 be 00 00 00 00 00 fc
RSP: 0018:ffffc90006aa7788 EFLAGS: 00000282
RAX: 538a8b5d8cff9100 RBX: ffff8880244d4100 RCX: 538a8b5d8cff9100
RDX: 0000000000000000 RSI: ffffffff8d99883e RDI: ffffffff8be29f40
RBP: ffffc90006aa79b0 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffff8880244d3980
R13: dffffc0000000000 R14: ffff8880244d3980 R15: ffff888136639fc0
 __schedule+0x1948/0x4d00
 preempt_schedule_irq+0xb5/0x150
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:preempt_schedule_thunk+0x0/0x30
Code: 82 8c 00 48 c7 c0 a0 57 80 8b e9 4b bd 3d 0a 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 <55> 48 89 e5 57 56 52 51 50 41 50 41 51 41 52 41 53 e8 4a 0a 3c 0a
RSP: 0018:ffffc90006aa7b30 EFLAGS: 00000246
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8d99883e RDI: 00000000ffffffff
RBP: 0000000000000000 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffff888136639fc0
R13: 1ffff11026cc75c6 R14: 0000000000000001 R15: ffff88813663ae30
 try_to_wake_up+0x81b/0x1290
 wake_up_q+0xb6/0x110
 futex_wake+0x458/0x500
 do_futex+0x395/0x420
 __se_sys_futex+0x36f/0x400
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5636b8e9a9
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:00007f5637a520e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f5636db6088 RCX: 00007f5636b8e9a9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f5636db608c
RBP: 00007f5636db6080 R08: 7fffffffffffffff R09: 0000000000000000
R10: 000000000000000e R11: 0000000000000246 R12: 00007f5636db608c
R13: 0000000000000000 R14: 00007ffef9258e70 R15: 00007ffef9258f58
 </TASK>
sched: DL replenish lagged too much
