rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 1, t=10502 jiffies, g=459877, q=747 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10445 (4295260449-4295250004), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10445 jiffies! g459877 f0x2 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:27368 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 __schedule+0x17d4/0x5630
 schedule+0x164/0x2b0
 schedule_timeout+0x152/0x2c0
 rcu_gp_fqs_loop+0x30c/0x11f0
 rcu_gp_kthread+0x9e/0x2b0
 kthread+0x38b/0x480
 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: 30268 Comm: kworker/R-bond8 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
Workqueue: bond895 bond_3ad_state_machine_handler
RIP: 0010:filter_irq_stacks+0x32/0xa0
Code: 41 55 41 54 53 85 f6 74 70 49 89 fe 41 89 f4 31 db 49 bd 00 00 00 00 00 fc ff df 49 89 ff 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 <74> 08 4c 89 ff e8 04 5c 84 00 49 8b 04 de 48 3d 30 02 00 81 0f 93
RSP: 0018:ffffc90000a07f58 EFLAGS: 00000246
RAX: 1ffff92000141010 RBX: 0000000000000014 RCX: 0000000000000001
RDX: 0000000000000800 RSI: 0000000000000018 RDI: ffffc90000a07fe0
RBP: ffffc90000a08210 R08: 0000000000000015 R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8eb5a1e0 R12: 0000000000000018
R13: dffffc0000000000 R14: ffffc90000a07fe0 R15: ffffc90000a08080
FS:  0000000000000000(0000) GS:ffff8882a8f2d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb2e1fc4ff8 CR3: 000000011cbee000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 stack_depot_save_flags+0x33/0x7f0
 kasan_save_track+0x4f/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_node_noprof+0x359/0x620
 __alloc_skb+0x1db/0x7a0
 fdb_notify+0xa6/0x160
 br_fdb_update+0x4e6/0x6c0
 br_handle_frame_finish+0x618/0x1990
 br_nf_hook_thresh+0x3dd/0x4c0
 br_nf_pre_routing_finish_ipv6+0x90c/0xc40
 br_nf_pre_routing_ipv6+0x382/0x6f0
 br_handle_frame+0x127f/0x1510
 __netif_receive_skb_core+0x989/0x30c0
 process_backlog+0x727/0x18b0
 __napi_poll+0xaa/0x330
 net_rx_action+0x61d/0xf50
 handle_softirqs+0x226/0x860
 do_softirq+0x77/0xd0
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0x100/0x140
 bond_3ad_state_machine_handler+0x5a7c/0x5d60
 process_scheduled_works+0xa88/0x14c0
 rescuer_thread+0x7b6/0x10b0
 kthread+0x38b/0x480
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
