I upgraded my debian from Wheezy to Stretch/SID and had the same problem
with poweroff. I talked to ukleinek on IRC-debian and had a few findings:
- problems seems to start with 4.x.x kernels
- testet 4.4.6, 4.4.7, 4.4.8 and actually 4.5.0-1-marvell
- problems has something to do with the build in real-time-clock of
the QNAP or maybe with the i2c-bus it is connected to.
- another idea is that the problem has something to do with qcontrol
- if you check your kernel-log (dmesg | grep rtc)
you will should see a wrong set alarm-time, this seems to be the
fault:
[ 2.257418] rtc rtc0: invalid alarm value: 1900-1-29 1193031:57:16
- we unloaded the rtc (i2c)-driver and checked it with i2c tools
echo 0-0030 > /sys/bus/i2c/devices/0-0030/driver/unbind
i2c-detect -l
i2c-detect 0
i2cget 0 0x30 1
[ 8555.228376] i2c i2c-0: mv64xxx_i2c_fsm: Ctlr Error
-- state: 0x7, status: 0x38, addr: 0x30, flags: 0x1
- after rebooting the error was magically gone
(I think the rtc is still not working / but alarm is unset)
Manuel
