rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 13621 jiffies s: 1209 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 5959 Comm: syz.2.13 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 21 8f 03 66
RSP: 0018:ffffc90000007718 EFLAGS: 00000046
RAX: 0000000000000080 RBX: ffff88804b023900 RCX: 0000000000000838
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000000000838
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff81ae170e
R10: 0000000000000003 R11: ffffffff81704490 R12: 0000000010001274
R13: dffffc0000000000 R14: 0000000000000080 R15: 0000000000000020
FS:  00007feb5fc306c0(0000) GS:ffff8880b8613000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000001 CR3: 000000010f06a000 CR4: 00000000000006f0
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:__sanitizer_cov_trace_pc+0x28/0x70
Code: 90 90 f3 0f 1e fa 48 8b 04 24 65 48 8b 0c 25 08 d0 a0 92 65 8b 15 18 0f e1 10 81 e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 35 <83> b9 3c 16 00 00 00 74 2c 8b 91 18 16 00 00 83 fa 02 75 21 48 8b
RSP: 0018:ffffc90000007988 EFLAGS: 00000246
RAX: ffffffff8aebc017 RBX: dffffc0000000000 RCX: ffff88802616d640
RDX: 0000000000000100 RSI: ffff88806649f980 RDI: ffff888124110e40
RBP: ffffc90000007c10 R08: ffff88802616d640 R09: 0000000000000003
R10: 0000000000000080 R11: 0000000000000100 R12: ffff888124110e40
R13: ffff88812121f850 R14: ffff88806649f980 R15: 0000000000000000
 ieee80211_scan_rx+0x27/0xa20
 ieee80211_rx_list+0x201c/0x2a90
 ieee80211_rx_napi+0x1a8/0x3d0
 ieee80211_handle_queued_frames+0xe8/0x1f0
 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:trace_sched_exit_tp+0x1/0x110
Code: 8c 55 fe ff ff 48 8b 7d b0 e8 6b 38 92 00 e9 47 fe ff ff 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 <53> 66 90 65 8b 05 59 a0 0f 11 83 f8 08 73 3b 89 c3 c1 e8 06 48 8d
RSP: 0018:ffffc90003f9f3d0 EFLAGS: 00000246
RAX: c8a167c177e1ec00 RBX: ffff88802616d640 RCX: c8a167c177e1ec00
RDX: 0000000000000007 RSI: ffffffff8d9ba4c8 RDI: 0000000000000000
RBP: ffffc90003f9f5f0 R08: ffffffff8fa3ab37 R09: 1ffffffff1f47566
R10: dffffc0000000000 R11: fffffbfff1f47567 R12: dffffc0000000000
R13: 0000000000000000 R14: ffff88802616d640 R15: 1ffff11009607551
 __schedule+0x17ae/0x4cc0
 preempt_schedule_irq+0xb5/0x150
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x31/0x90
Code: 24 65 48 8b 14 25 08 d0 a0 92 65 8b 0d d8 0a e1 10 81 e1 00 01 ff 00 74 11 81 f9 00 01 00 00 75 5b 83 ba 3c 16 00 00 00 74 52 <8b> 8a 18 16 00 00 83 f9 03 75 47 48 8b 8a 20 16 00 00 44 8b 8a 1c
RSP: 0018:ffffc90003f9f778 EFLAGS: 00000246
RAX: ffffffff8b74b557 RBX: ffffc90003f9fa00 RCX: 0000000000000000
RDX: ffff88802616d640 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff888111b70b00 R08: ffff88802616d640 R09: 0000000000000004
R10: 0000000000000003 R11: 0000000000000000 R12: ffff8880277c5c00
R13: ffff8880277c5c50 R14: 0000000000000001 R15: 0000000000000003
 mas_next_node+0x4a7/0xd60
 mas_next_slot+0x407/0xcf0
 mas_find+0xb0e/0xd30
 acct_collect+0x1e1/0x770
 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: 0033:0x7feb5ed8eba9
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:00007feb5fc300e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007feb5efd6098 RCX: 00007feb5ed8eba9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007feb5efd6098
RBP: 00007feb5efd6090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007feb5efd6128 R14: 00007fffbec59df0 R15: 00007fffbec59ed8
 </TASK>
rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (4845 ticks this GP) idle=357c/1/0x4000000000000000 softirq=14283/14283 fqs=4748
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   662785          3            0
rcu: 	cputime:    35432      13007           58   ==> 48450(ms)
rcu: 	(t=10502 jiffies g=7757 q=3733 ncpus=2)
CPU: 0 UID: 0 PID: 5959 Comm: syz.2.13 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+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 7b 5f 03 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:ffffc90000006b40 EFLAGS: 00000206
RAX: c8a167c177e1ec00 RBX: 0000000000000000 RCX: c8a167c177e1ec00
RDX: 0000000000000000 RSI: ffffffff8dba9b9a RDI: ffffffff8be33e80
RBP: ffffffff81aac84d R08: 0000000000000000 R09: ffffffff81aac84d
R10: ffffc90000006cb8 R11: ffffffff81ac4d00 R12: 0000000000000002
R13: ffffffff8e13a120 R14: 0000000000000000 R15: 0000000000000246
FS:  00007feb5fc306c0(0000) GS:ffff8880b8613000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000001 CR3: 000000010f06a000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 00000000000f0602
Call Trace:
 <IRQ>
 is_module_text_address+0x39/0x1e0
 kernel_text_address+0x94/0xe0
 __kernel_text_address+0xd/0x40
 unwind_get_return_address+0x4d/0x90
 arch_stack_walk+0xfc/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_stack+0x3e/0x60
 kasan_record_aux_stack+0xbd/0xd0
 kvfree_call_rcu+0xbb/0x410
 cfg80211_update_known_bss+0x84b/0x13c0
 __cfg80211_bss_update+0x147/0x2120
 cfg80211_inform_single_bss_data+0xba9/0x1ac0
 cfg80211_inform_bss_data+0x1fb/0x3b30
 cfg80211_inform_bss_frame_data+0x3d7/0x730
 ieee80211_bss_info_update+0x746/0x9e0
 ieee80211_scan_rx+0x593/0xa20
 ieee80211_rx_list+0x201c/0x2a90
 ieee80211_rx_napi+0x1a8/0x3d0
 ieee80211_handle_queued_frames+0xe8/0x1f0
 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:trace_sched_exit_tp+0x1/0x110
Code: 8c 55 fe ff ff 48 8b 7d b0 e8 6b 38 92 00 e9 47 fe ff ff 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 <53> 66 90 65 8b 05 59 a0 0f 11 83 f8 08 73 3b 89 c3 c1 e8 06 48 8d
RSP: 0018:ffffc90003f9f3d0 EFLAGS: 00000246
RAX: c8a167c177e1ec00 RBX: ffff88802616d640 RCX: c8a167c177e1ec00
RDX: 0000000000000007 RSI: ffffffff8d9ba4c8 RDI: 0000000000000000
RBP: ffffc90003f9f5f0 R08: ffffffff8fa3ab37 R09: 1ffffffff1f47566
R10: dffffc0000000000 R11: fffffbfff1f47567 R12: dffffc0000000000
R13: 0000000000000000 R14: ffff88802616d640 R15: 1ffff11009607551
 __schedule+0x17ae/0x4cc0
 preempt_schedule_irq+0xb5/0x150
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x31/0x90
Code: 24 65 48 8b 14 25 08 d0 a0 92 65 8b 0d d8 0a e1 10 81 e1 00 01 ff 00 74 11 81 f9 00 01 00 00 75 5b 83 ba 3c 16 00 00 00 74 52 <8b> 8a 18 16 00 00 83 f9 03 75 47 48 8b 8a 20 16 00 00 44 8b 8a 1c
RSP: 0018:ffffc90003f9f778 EFLAGS: 00000246
RAX: ffffffff8b74b557 RBX: ffffc90003f9fa00 RCX: 0000000000000000
RDX: ffff88802616d640 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff888111b70b00 R08: ffff88802616d640 R09: 0000000000000004
R10: 0000000000000003 R11: 0000000000000000 R12: ffff8880277c5c00
R13: ffff8880277c5c50 R14: 0000000000000001 R15: 0000000000000003
 mas_next_node+0x4a7/0xd60
 mas_next_slot+0x407/0xcf0
 mas_find+0xb0e/0xd30
 acct_collect+0x1e1/0x770
 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: 0033:0x7feb5ed8eba9
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:00007feb5fc300e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007feb5efd6098 RCX: 00007feb5ed8eba9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007feb5efd6098
RBP: 00007feb5efd6090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007feb5efd6128 R14: 00007fffbec59df0 R15: 00007fffbec59ed8
 </TASK>
sched: DL replenish lagged too much
