[ 4949.129115] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P7181 } 4674238 jiffies s: 5437 root: 0x0/T
[ 4949.129249] rcu: blocking rcu_node structures (internal RCU debug):
[ 4958.272110] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 4958.272222] rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-3): P7181/1:b..l
[ 4958.272274] rcu: 	(detected by 0, t=4683382 jiffies, g=35049, q=343 ncpus=4)
[ 4958.272318] task:teamd           state:D stack:11408 pid:7181  tgid:7181  ppid:1      task_flags:0x40014c flags:0x00080001
[ 4958.272389] Call Trace:
[ 4958.272407]  <TASK>
[ 4958.272425]  __schedule+0x3f7/0x1040
[ 4958.272457]  schedule+0x27/0xd0
[ 4958.272484]  synchronize_rcu_expedited+0x1d2/0x380
[ 4958.272515]  ? __mt_destroy+0x7a/0x80
[ 4958.272540]  ? cpuusage_write+0xa0/0xa0
[ 4958.272566]  ? sync_rcu_exp_select_cpus+0x440/0x440
[ 4958.272601]  packet_release+0x271/0x420
[ 4958.272626]  __sock_release+0x4b/0xc0
[ 4958.272650]  sock_close+0x15/0x20
[ 4958.272675]  __fput+0xe8/0x2c0
[ 4958.272704]  task_work_run+0x63/0xa0
[ 4958.272728]  do_exit+0x2bd/0xba0
[ 4958.272758]  make_task_dead+0x89/0x90
[ 4958.272784]  rewind_stack_and_make_dead+0x16/0x20
[ 4958.272816] RIP: 0033:0x7fc759b7a08e
[ 4958.272841] RSP: 002b:00007ffec7212700 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[ 4958.272887] RAX: ffffffffffffffda RBX: 00005588a3488330 RCX: 00007fc759b7a08e
[ 4958.272935] RDX: 0000000000000000 RSI: 00007ffec72127a0 RDI: 0000000000000005
[ 4958.272985] RBP: 00007ffec7212710 R08: 0000000000000000 R09: 0000000000000000
[ 4958.273033] R10: 0000000000000000 R11: 0000000000000202 R12: 00005588a34a90a0
[ 4958.273073] R13: 00007ffec72127a0 R14: 00005588a3488240 R15: 00007ffec72128e0
[ 4958.273117]  </TASK>