Comment # 53 on bug 944978 from Larry Finger

(In reply to Alberto Zacchetti from comment #52)
> (In reply to Takashi Iwai from comment #51)
> > The fix was already backported to openSUSE kernels, so already fixed for
> > openSUSE users.  Upstream kernel will have it in the upcoming 4.4-rc1.
> 
> But my 42.1 system hangs yet...

Based on the similarity of the symptoms, I thought that patch would fix your
problems. Unfortunately, none of your posted logs give any traceback info that
is helpful.

Please boot a rescue system, mount the partition containing / for your 42.1
system on /mnt, and run the command

echo "blacklist rtl8821ae" > /mnt/etc/modprobe.d/50-rtl8821ae.conf

If rtl8821ae is the problem, you should then be able to boot the system
normally as loading of that driver will be blocked. After you have verified
that everything now works OK, then "sudo modprobe -v rtl8821ae", which will
load the wifi driver. If it then fails, generate and post the crash dump.