On 2019.05.03 12:28, Spackman, Chris wrote:
All,
I set up a new AMD computer (moved disk from previous Intel
computer). After some struggles with bios settings, I got it to boot
properly and updated for the new hardware. All seemed fine, but then
it
started "crashing" when left alone. From Googling, it seems that it
has
something to do with the bios powering down drives that aren't in use,
but then not being able to power them back up.
When it "crashes" (goes into a coma?), I have to use the power button
to
turn it off and then back on. As it starts up, the root partition is
clean, but home has to be recovered - which seems to indicate that it
is
indeed an issue with the mobo/bios turning off the root drive.
I found a Linux site that suggested this line in dmesg as a symptom:
> [Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
The solution was to turn of C-states in the bios. I forget the exact
wording right now, but I could not find it in my bios. I tried to
turn off
everything that seemed related to power saving, but several did not
have
an "off" option. So, I am still getting the error.
For now, I set up a cron job to move a file from /root to /tmp every
15
minutes. This seems to work, but it is obviously not a long term
solution.
I checked for a bios update, but there was not one available.
Has anyone else experienced this? Is there maybe a /sys/ or /proc/
file
I can tweak to avoid bios powering things off?
Thanks.
It's only a guess, but I'd suggest looking through the kernel docs to
see if there is any boot command line parameter that might do this.
Jack
