Created attachment 138344 [details]
dmesg, killing pids, shutting down, unloading amdgpu, xorg log
WHAT HAPPENS
- Amdgpu hangs without any clear clue of what is happening.
- The mouse cursor responds to movements when the system is not frozen, but
also it does nothing as well.
- The keyboard gets num lock frozen and even trying with a ps2 one does not
work.
- The video gets frozen.
- Only ssh works, but only the times that the system is not frozen, of cour=
se.
- The most irritating part : the system can not be shutdown. No matter what=
you
do :
-- If you press the power button from the case, it is the only answer that =
you
can get from the output display : it shows a console indicating that x-serv=
er
is trying to be turned off. But nothing else happens and the system can't be
turned off.
-- If you try anything from ssh : "init 0", "poweroff",=
"shutdown -P 0 -h",
"reboot". It simply does not work. It keeps waiting for something=
that never
happens. Then you have to press ctrl_c to get back to the ssh sessioon. In =
an
attempt it closed the ssh daemon but the shutdown itself never happened... =
even
after 30mins.
-- It is IMPOSSIBLE to force unload amdgpu using "rmmod -f amdgpu"=
;. The task
takes forever and never responds. It only hangs the ssh session.
-- It is IMPOSSIBLE to kill some x-related pids properly. If you try to kil=
l it
either nothing will happen or the process will be in a defunct state. Not e=
ven
a "su -c 'kill -9 <pid>'" will work.
TIPS
- The crashes that allows ssh connection almost always happens when firefox=
is
openned and running a video (netflix, youtube) or whatsapp web.
- The crashes that simply hangs the entire computer may occur at any time.
OBSERVATIONS
- I use a custom kernel (from 4.15). I've tried including the polaris binar=
ies
for my card, that showed an improvement (less freeze states) for a while. B=
ut
now it is the same again.
- I use a nvidia io second pci-e slot for vfio. It is a must and I disable
nouveau as well... It shoud not be a reason for failing. I tried also with
another amd/none-card on second slot. The results were the same as I rememb=
er.
SYSTEM SPECS
- Custom kernel compilation optimized for ryzen
(https://wiki.gentoo.org/wik=
i/Ryzen) and using polaris binaries
(https://wiki.gentoo.org/wi=
ki/AMDGPU)
- Chipset X370 (mobo)
- RX480 in first slot
- GTX 1070 on second slot.
- Tried also with a RX 580 on second slot.
- Tried also with nothing on second slot.
- i3wm loading from startx command