Bug#856843: Problem also exists on Ubuntu 16.04 with 4.4.0 kernel

[Nils <internationils@gmx.net>]

I also see it on Ubuntu 16.04 on another system:
Linux blackbox 4.4.0-75-generic #96-Ubuntu SMP Thu Apr 20 09:56:33 UTC
2017 x86_64 x86_64 x86_64 GNU/Linux
ii  linux-image-4.4.0-75-generic                               
4.4.0-75.96                                amd64        Linux kernel
image for version 4.4.0 on 64 bit x86 SMP

I'll try with 4.8.0 on Ubuntu as well, but am expecting the same
behavior. For me this is with a FreeNAS server.

Should I file this bug with Ubuntu as well? Does it make sense to file
it upstream with the kernel directly?