Debian Jessie on QNAP TS-112P - Reboot instead of shutdown

[Helge Wiemann <helge.wiemann@gmx.com>]

Hello,

I think the issue is known bug in the current Kirkwood kernel, hence I 
don't want to dwell on the subject. I upgraded to Debian Jessie recently 
on my QNP TS-112P and ever since I have been unable to shutdown my 
system, because it restarts rather than turns itself off when I issue 
"shutdown -h now" or "poweroff".

Since I don't want to wait for a kernel update I was wondering if I can 
install this kernel image:

linux-image-4.3.0-0.bpo.1-kirkwood (4.3.5-1~bpo8+1)

I found it here:

https://packages.debian.org/jessie-backports/linux-image-4.3.0-0.bpo.1-kirkwood

Would this fix my problem and will I be able to install it without 
bricking my system? "dkpg -i" tells me this will break flash-kernel, 
therefore I did not go ahead.

I am at a loss here... Thank you.

HW