Public bug reported:

Description:    Ubuntu 16.04 LTS
Release:        16.04

Hotplugging Dell's WD15 Thunderbolt cause a system panic with regular
kernel 4.4.0-28. Using http://kernel.ubuntu.com/~kernel-
ppa/mainline/v4.6.3-yakkety/ kernel. WD15 works if it is connected to
laptop during boot time. Hotplug  causes system hang

What you expected to happen:
Hotplug WD15 thuderbolt 
(http://www.dell.com/support/article/us/en/04/SLN301105) all features should 
work (USB, soundcards, port replication)
What happened instead:
Display port on WD15 works, USB replication don't work soundcard dont't work 
and eventualy system hangs.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

** Attachment added: "lspci-vnvn.log"
   
https://bugs.launchpad.net/bugs/1599476/+attachment/4696375/+files/lspci-vnvn.log

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https://bugs.launchpad.net/bugs/1599476

Title:
  Thunderbolt hotplug causes system hang

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