rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P10552
rcu: 	(detected by 1, t=10502 jiffies, g=39925, q=1277 ncpus=2)
task:syz.0.1179      state:R  running task     stack:22696 pid:10552 tgid:10548 ppid:5808   task_flags:0x400140 flags:0x00080012
Call Trace:
 <IRQ>
 sched_show_task+0x4aa/0x5f0
 print_other_cpu_stall+0xfcc/0x1380
 rcu_sched_clock_irq+0x939/0x1050
 update_process_times+0x23b/0x2f0
 tick_nohz_handler+0x42b/0x770
 __hrtimer_run_queues+0x4e7/0xcc0
 hrtimer_interrupt+0x45b/0xaa0
 __sysvec_apic_timer_interrupt+0x102/0x460
 sysvec_apic_timer_interrupt+0x52/0xc0
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:memcpy_orig+0x58/0x130
Code: 4f 08 4c 89 57 10 4c 89 5f 18 48 8d 7f 20 73 d4 83 c2 20 eb 44 48 01 d6 48 01 d7 48 83 ea 20 0f 1f 00 48 83 ea 20 4c 8b 46 f8 <4c> 8b 4e f0 4c 8b 56 e8 4c 8b 5e e0 48 8d 76 e0 4c 89 47 f8 4c 89
RSP: 0018:ffffc90000a08950 EFLAGS: 00000206
RAX: ffff8881a6c4e300 RBX: ffff8881a6c4e300 RCX: ffffffff8959dbb7
RDX: 000000000000005c RSI: ffff8881a6c4e01c RDI: ffff8881a6c4e39c
RBP: 000000000000004c R08: 00010002f2500007 R09: 1ffff11034d89c73
R10: dffffc0000000000 R11: ffffed1034d89c74 R12: 000000000000009c
R13: ffff8881a6c4df80 R14: 000000000000009c R15: ffff8881a1a9a6d8
 skb_copy_bits+0xf7/0x8f0
 skb_copy+0x33f/0x800
 mac80211_hwsim_tx_frame_no_nl+0xd00/0x11f0
 mac80211_hwsim_tx_frame+0x1b5/0x200
 mac80211_hwsim_beacon_tx+0x3e8/0x870
 __iterate_interfaces+0x2ab/0x590
 ieee80211_iterate_active_interfaces_atomic+0xdb/0x180
 mac80211_hwsim_beacon+0xbb/0x180
 __hrtimer_run_queues+0x53a/0xcc0
 hrtimer_run_softirq+0x187/0x2b0
 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:finish_task_switch+0x245/0x920
Code: 00 00 48 85 db 0f 85 e8 01 00 00 0f 1f 44 00 00 4c 8b 75 d0 49 83 c4 48 4c 89 e7 e8 85 ca fc 09 e8 20 85 37 00 fb 4c 8b 65 c0 <49> 8d bc 24 30 16 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0
RSP: 0018:ffffc90009007038 EFLAGS: 00000202
RAX: 0000000000162d73 RBX: 0000000000000000 RCX: 0000000080000001
RDX: 0000000000000006 RSI: ffffffff8dcf1fb8 RDI: ffffffff8c076d00
RBP: ffffc90009007090 R08: ffffffff8ff0e0b7 R09: 1ffffffff1fe1c16
R10: dffffc0000000000 R11: fffffbfff1fe1c17 R12: ffff88810e64d700
R13: dffffc0000000000 R14: ffff8881bb159d00 R15: ffff88823c63b918
 __schedule+0x1546/0x5070
 preempt_schedule_common+0x82/0xd0
 preempt_schedule_thunk+0x16/0x30
 _raw_spin_unlock+0x3f/0x50
 copy_pmd_range+0x74ed/0x7e80
 copy_page_range+0xbe8/0x11f0
 dup_mmap+0xf40/0x1d90
 copy_mm+0x13b/0x4b0
 copy_process+0x18b5/0x3cf0
 kernel_clone+0x248/0x8e0
 __x64_sys_clone+0x1b6/0x230
 do_syscall_64+0x14d/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f86d2b9acb9
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:00007f86d3afbfd8 EFLAGS: 00000202 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f86d2e16090 RCX: 00007f86d2b9acb9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000a49a4080
RBP: 00007f86d2c08bf7 R08: ffffffffff600000 R09: ffffffffff600000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
R13: 00007f86d2e16128 R14: 00007f86d2e16090 R15: 00007ffd653677f8
 </TASK>
