rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10499 ticks this GP) idle=fcdc/1/0x4000000000000000 softirq=21136/21380 fqs=5217
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1184924        732            0
rcu: 	cputime:    34008      18466           44   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=13741 q=1964 ncpus=2)
CPU: 0 UID: 0 PID: 7067 Comm: syz.2.268 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:__rcu_read_unlock+0x33/0xe0
Code: 55 41 54 53 49 bf 00 00 00 00 00 fc ff df 65 48 8b 3c 25 08 d0 a0 92 48 8d 9f 44 04 00 00 49 89 dc 49 c1 ec 03 43 0f b6 04 3c <84> c0 75 4f ff 0b 75 1d 4c 8d b7 48 04 00 00 4c 89 f0 48 c1 e8 03
RSP: 0018:ffffc900000074e8 EFLAGS: 00000a03
RAX: 0000000000000000 RBX: ffff88802251a104 RCX: ccd671d3cfb15900
RDX: 0000000000000004 RSI: ffffffff8dba9858 RDI: ffff888022519cc0
RBP: dffffc0000000000 R08: 0000000000000018 R09: ffffffff8172d195
R10: ffffc90000007638 R11: ffffffff81ac4d00 R12: 1ffff110044a3420
R13: ffffc90004680000 R14: ffffc900000075e8 R15: dffffc0000000000
FS:  00007efe7ffd56c0(0000) GS:ffff8880b8613000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f204468a7c5 CR3: 000000003ab54000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000082
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 unwind_next_frame+0x19ae/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
 __alloc_skb+0x112/0x2d0
 new_skb+0x2f/0x2b0
 aoecmd_cfg+0x28b/0x7c0
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0xb7/0x180
 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:__sanitizer_cov_trace_const_cmp8+0x1e/0x90
Code: 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 65 48 8b 0c 25 08 d0 a0 92 65 8b 15 d8 09 e1 10 81 e2 00 01 ff 00 <74> 11 81 fa 00 01 00 00 75 57 83 b9 3c 16 00 00 00 74 4e 8b 91 18
RSP: 0018:ffffc90004686428 EFLAGS: 00000246
RAX: ffffffff8b7676b6 RBX: 000000007fffffff RCX: ffff888022519cc0
RDX: 0000000000000000 RSI: 000000007fffffff RDI: 000000007fffffff
RBP: ffffc900046865b0 R08: ffffc90004686537 R09: 0000000000000000
R10: ffffc90004686520 R11: fffff520008d0ca7 R12: ffffc90004686520
R13: dffffc0000000000 R14: ffffc9000468670e R15: ffffffff8b8b8160
 vsnprintf+0x46/0xf00
 sprintf+0xd9/0x120
 info_print_prefix+0x1f3/0x310
 record_print_text+0x154/0x420
 printk_get_next_message+0x26d/0x7b0
 console_flush_all+0x4ca/0xc40
 console_unlock+0xc4/0x270
 vprintk_emit+0x5b7/0x7a0
 _printk+0xcf/0x120
 __nla_validate_parse+0x1719/0x2d40
 __nla_parse+0x40/0x60
 rtnl_newlink+0x1dd/0x1c70
 rtnetlink_rcv_msg+0x7cf/0xb70
 netlink_rcv_skb+0x208/0x470
 netlink_unicast+0x82f/0x9e0
 netlink_sendmsg+0x805/0xb30
 __sock_sendmsg+0x21c/0x270
 ____sys_sendmsg+0x505/0x830
 ___sys_sendmsg+0x21f/0x2a0
 __x64_sys_sendmsg+0x19b/0x260
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7efe81d8eba9
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:00007efe7ffd5038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007efe81fd6090 RCX: 00007efe81d8eba9
RDX: 0000000000000000 RSI: 0000200000000600 RDI: 0000000000000006
RBP: 00007efe81e11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007efe81fd6128 R14: 00007efe81fd6090 R15: 00007ffd3947f908
 </TASK>
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 7067 Comm: syz.2.268 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:check_preemption_disabled+0x3/0x120
Code: e3 8b 48 c7 c6 e0 3d e3 8b eb 1c 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 41 57 <41> 56 53 48 83 ec 10 65 48 8b 05 be 5e 26 07 48 89 44 24 08 65 8b
RSP: 0018:ffffc900000072d8 EFLAGS: 00000207
RAX: 0000000000000000 RBX: ffffffff90343b01 RCX: ccd671d3cfb15900
RDX: ffffc90000007401 RSI: ffffffff8be33de0 RDI: ffffffff8be33da0
RBP: dffffc0000000000 R08: ffffc90000007fe0 R09: 0000000000000000
R10: ffffc90000007498 R11: fffff52000000e95 R12: ffffc90000007ff0
R13: ffffffff8172d195 R14: ffffffff8e13a120 R15: ffffffff8172d195
FS:  00007efe7ffd56c0(0000) GS:ffff8880b8613000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f204468a7c5 CR3: 000000003ab54000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000082
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 rcu_is_watching+0x15/0xb0
 lock_release+0x4b/0x3e0
 unwind_next_frame+0x19a9/0x2390
 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_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:nbcon_get_cpu_emergency_nesting+0x0/0x40
Code: 03 38 c1 7c 9e 48 89 df e8 7d 7e a8 f6 eb 94 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 <e8> 9b 00 45 f6 e8 a6 29 25 f6 84 c0 74 1a e8 8d 00 45 f6 65 48 8b
RSP: 0018:ffffc90004686960 EFLAGS: 00000293
RAX: ffffffff81a10579 RBX: ffffc90004686a80 RCX: ffff888022519cc0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000ffffffff
RBP: ffffc90004686af0 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bfa234 R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000081a07801 R15: 0000000000000000
 nbcon_get_default_prio+0x2e/0x80
 printk_get_console_flush_type+0x22/0x460
 console_flush_all+0x112/0xc40
 console_unlock+0xc4/0x270
 vprintk_emit+0x5b7/0x7a0
 _printk+0xcf/0x120
 __nla_validate_parse+0x1719/0x2d40
 __nla_parse+0x40/0x60
 rtnl_newlink+0x1dd/0x1c70
 rtnetlink_rcv_msg+0x7cf/0xb70
 netlink_rcv_skb+0x208/0x470
 netlink_unicast+0x82f/0x9e0
 netlink_sendmsg+0x805/0xb30
 __sock_sendmsg+0x21c/0x270
 ____sys_sendmsg+0x505/0x830
 ___sys_sendmsg+0x21f/0x2a0
 __x64_sys_sendmsg+0x19b/0x260
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7efe81d8eba9
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:00007efe7ffd5038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007efe81fd6090 RCX: 00007efe81d8eba9
RDX: 0000000000000000 RSI: 0000200000000600 RDI: 0000000000000006
RBP: 00007efe81e11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007efe81fd6128 R14: 00007efe81fd6090 R15: 00007ffd3947f908
 </TASK>
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 7067 Comm: syz.2.268 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:native_apic_msr_write+0x39/0x50
Code: 74 2a 83 ff 30 74 25 eb 10 81 ff d0 00 00 00 74 1b 81 ff e0 00 00 00 74 13 c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 c3 cc cc cc cc cc f3 0f 1e fa 89 f6 31 d2 e9 d2 f8 8e 03 66
RSP: 0018:ffffc90000007a78 EFLAGS: 00000046
RAX: 0000000000000051 RBX: ffff88804b023900 RCX: 0000000000000838
RDX: 0000000000000000 RSI: 0000000000000051 RDI: 0000000000000838
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff81ae170e
R10: 0000000000000003 R11: ffffffff81704490 R12: 0000000010005a98
R13: dffffc0000000000 R14: 0000000000000051 R15: 0000000000000020
FS:  00007efe7ffd56c0(0000) GS:ffff8880b8613000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f204468a7c5 CR3: 000000003ab54000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000082
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 lapic_next_event+0x11/0x20
 clockevents_program_event+0x1cf/0x360
 hrtimer_interrupt+0x620/0xaa0
 __sysvec_apic_timer_interrupt+0x10b/0x410
 sysvec_apic_timer_interrupt+0x52/0xc0
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:skb_dequeue+0x5/0x150
Code: fe ff ff e8 9d f1 62 f8 90 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 <41> 57 41 56 41 55 41 54 53 50 49 89 fc 48 bd 00 00 00 00 00 fc ff
RSP: 0018:ffffc90000007ce0 EFLAGS: 00000246
RAX: ffff88803a2e9628 RBX: ffff88803a2e8e40 RCX: ffff888022519cc0
RDX: 0000000000000100 RSI: ffffffff8be33de0 RDI: ffff88803a2e9628
RBP: dffffc0000000000 R08: ffffffff8fa3a837 R09: 1ffffffff1f47506
R10: dffffc0000000000 R11: ffffffff8ae74850 R12: ffff88803a2e9608
R13: 1ffff1100745d2c3 R14: ffff88804b023d08 R15: ffff88803a2e9600
 ieee80211_handle_queued_frames+0x4a/0x1f0
 tasklet_action_common+0x36c/0x580
 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:desc_read+0x2ff/0x3f0
Code: 89 ef e8 c4 bd 81 00 4c 8b 7d 00 49 be ff ff ff ff ff ff ff 3f 4d 21 fe 48 8b 1c 24 48 89 df 4c 89 f6 e8 14 42 1e 00 4c 89 f8 <48> c1 e8 3e 4c 39 f3 41 bd ff ff ff ff 44 0f 44 e8 4d 85 e4 0f 85
RSP: 0018:ffffc90004686598 EFLAGS: 00000293
RAX: 80000000ffffead6 RBX: 00000000ffffead6 RCX: ffff888022519cc0
RDX: 0000000000000000 RSI: 00000000ffffead6 RDI: 00000000ffffead6
RBP: ffffffff8e026550 R08: ffffffff8e026557 R09: 1ffffffff1c04caa
R10: dffffc0000000000 R11: fffffbfff1c04cab R12: ffffc900046866e0
R13: ffffffff8e08db50 R14: 00000000ffffead6 R15: 80000000ffffead6
 _prb_read_valid+0x26a/0xa90
 prb_read_valid+0x3c/0x60
 printk_get_next_message+0x15c/0x7b0
 console_flush_all+0x4ca/0xc40
 console_unlock+0xc4/0x270
 vprintk_emit+0x5b7/0x7a0
 _printk+0xcf/0x120
 __nla_validate_parse+0x1719/0x2d40
 __nla_parse+0x40/0x60
 rtnl_newlink+0x1dd/0x1c70
 rtnetlink_rcv_msg+0x7cf/0xb70
 netlink_rcv_skb+0x208/0x470
 netlink_unicast+0x82f/0x9e0
 netlink_sendmsg+0x805/0xb30
 __sock_sendmsg+0x21c/0x270
 ____sys_sendmsg+0x505/0x830
 ___sys_sendmsg+0x21f/0x2a0
 __x64_sys_sendmsg+0x19b/0x260
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7efe81d8eba9
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:00007efe7ffd5038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007efe81fd6090 RCX: 00007efe81d8eba9
RDX: 0000000000000000 RSI: 0000200000000600 RDI: 0000000000000006
RBP: 00007efe81e11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007efe81fd6128 R14: 00007efe81fd6090 R15: 00007ffd3947f908
 </TASK>
