Comment 741 for bug 1690085

(In reply to Jaap Crezee from comment #655)
> Could this be related?
>
> [620533.9804061 RBP: 0000000000000000 R08: 0000000000000001 R09:
> 00007f9014000080 [620533.981792] R10: 00007f9014de0270 R11: 0000000000000206
> R12: 00007f90477fdlfe [620533.983039] R13: 00007f90477fdlff R14:
> 00007f901ffff700 R15: 00007f901fffe540 [620541.767819] watchdog: BUG: soft
> lockup - CPU#4 stuck for 220 Enc4:Eantoor:5552.1 [620541.769193] Modules
> linked in: tun ueth nf_conntrack_netlink nfnetlink xfrm_user xfrn_algo

See also bug report 205017. It is difficult to capture the traces when it first happens. May or may not be the same bug.