bridge0: port 3(batadv1) entered forwarding state
bridge0: topology change detected, propagating
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (1 GPs behind) idle=097c/1/0x4000000000000000 softirq=83724/83725 fqs=2
rcu: 	(detected by 1, t=10505 jiffies, g=86953, q=572 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 18266 Comm: syz.0.4708 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:rcu_is_watching+0x0/0xb0
Code: c7 c7 60 24 96 8e e8 8f 51 44 03 eb cc 66 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 <f3> 0f 1e fa 41 57 41 56 53 65 ff 05 e0 58 8e 11 e8 eb f8 fd 09 89
RSP: 0018:ffffc90000007d08 EFLAGS: 00000002
RAX: ffffffff89b870bb RBX: ffffffff89b8708b RCX: 0000000000010000
RDX: ffff88810c6f8000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000001 R08: ffffffff89b8708b R09: ffffffff8e95cd60
R10: dffffc0000000000 R11: ffffed1003a90056 R12: ffff888112e90000
R13: ffff88801d480000 R14: ffff888112e92c00 R15: 18adb15afe4a7c95
FS:  000055555589f500(0000) GS:ffff88818dc8d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000010e08a000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 advance_sched+0x9d4/0xc20
 __hrtimer_run_queues+0x3c0/0xa20
 hrtimer_interrupt+0x44b/0x950
 __sysvec_apic_timer_interrupt+0x102/0x430
 sysvec_apic_timer_interrupt+0xa1/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:_raw_spin_unlock_irqrestore+0x47/0x80
Code: f7 e8 ad f5 f6 f5 f7 c3 00 02 00 00 74 05 e8 b0 8b 22 f6 9c 58 a9 00 02 00 00 75 27 f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 24 78 e8 f5 65 8b 05 ed d0 8d 07 85 c0 74 18 5b 41 5e e9 51 48
RSP: 0018:ffffc9000427fb20 EFLAGS: 00000206
RAX: 0000000000000006 RBX: 0000000000000206 RCX: 0000000080000002
RDX: 0000000000000000 RSI: ffffffff8dfaa160 RDI: 0000000000000001
RBP: ffff88810c6fbb00 R08: ffffffff9030b6f7 R09: 1ffffffff20616de
R10: dffffc0000000000 R11: fffffbfff20616df R12: dffffc0000000000
R13: 0000000000000001 R14: ffff88810c6fc570 R15: ffff88810c6fbb14
 try_to_wake_up+0x7b4/0x1380
 wake_up_q+0x85/0xd0
 futex_wake+0x49a/0x580
 do_futex+0x395/0x420
 __se_sys_futex+0x3a8/0x450
 do_syscall_64+0x15f/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8aa979cdd9
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:00007fff514898c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8aa979cdd9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f8aa9a15fa8
RBP: 00000000000000f1 R08: 0000000000000009 R09: 0000000000000000
R10: 00007f8aa9a15fa0 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8aa9a15fac R14: 00007f8aa9a15fa8 R15: 00007f8aa9a15fa0
 </TASK>
rcu: rcu_preempt kthread starved for 10495 jiffies! g86953 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:27968 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 __schedule+0x17b4/0x5680
 schedule+0x164/0x360
 schedule_timeout+0x158/0x2c0
 rcu_gp_fqs_loop+0x312/0x11d0
 rcu_gp_kthread+0x9e/0x2b0
 kthread+0x388/0x470
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 UID: 0 PID: 27 Comm: kworker/u10:0 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:smp_call_function_many_cond+0xfcd/0x13d0
Code: c0 75 79 45 8b 2e 44 89 ee 83 e6 01 31 ff e8 da 07 0c 00 41 83 e5 01 49 bd 00 00 00 00 00 fc ff df 75 07 e8 85 03 0c 00 eb 37 <f3> 90 43 0f b6 04 2c 84 c0 75 10 41 f7 06 01 00 00 00 74 1e e8 6a
RSP: 0018:ffffc90000a27700 EFLAGS: 00000293
RAX: ffffffff81b9bc06 RBX: ffff88823c63c148 RCX: ffff888160a9bb00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90000a27840 R08: ffffffff9030b6f7 R09: 1ffffffff20616de
R10: dffffc0000000000 R11: fffffbfff20616df R12: 1ffff11024208589
R13: dffffc0000000000 R14: ffff888121042c48 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8882a928d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8aa9786980 CR3: 000000000e74a000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 on_each_cpu_cond_mask+0x3f/0x80
 smp_text_poke_batch_finish+0x5f5/0x1160
 arch_jump_label_transform_apply+0x1c/0x30
 static_key_enable_cpuslocked+0x128/0x240
 static_key_enable+0x1a/0x20
 toggle_allocation_gate+0xab/0x290
 process_scheduled_works+0xb5d/0x1860
 worker_thread+0xa53/0xfc0
 kthread+0x388/0x470
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
hpet: Lost 19 RTC interrupts
