Here is some additional information. I built upstream kernel 4.11-rc5
with
CONFIG_PINCTRL_AMD=m
CONFIG_DEBUG_PINCTRL=y
CONFIG_DEBUG_GPIO=y
and blacklisted pinctrl-amd so as to able to boot that kernel and set up
netconsole. Doing a
modprobe pinctrl-amd
then results in a crash (obviously) and output along the lines of what
you can see in the attached files. Case A seems to be more common than
B. In case B, the system can still be used for a few seconds before
becoming unresponsive.
** Attachment added: "gb_pinctrl_amd.tar.gz"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1671360/+attachment/4856311/+files/gb_pinctrl_amd.tar.gz
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https://bugs.launchpad.net/bugs/1671360
Title:
System doesn't boot properly on AMD Ryzen / Gigabyte GA-AB350-gaming-3
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