WTR Pro CPU throttling

well everything I tested failed. Grub updates to force iommu makes passthrough conflict with nvme. Blacklick ahci breaks nvme disk detection, driverctl to set driver override breaks also the nvme access....guess it will finidh in truenas baremetal even if it's too powerful.
What's strange is that everything looks fine regarding IOMMU groups but it doesn't work
 
À new model of aoostar nas is coming…. Aoostar wtr max, is there a way to know if it will have the same pass through issue ?
 
It seems it has something to do with the amd_pstate driver. It seems sensor communication isnt working when forwarding both sata controllers. this might also affect the amd_pstate drive (didn't check the code if it requires temperature sensors)

If you want to get the cpu to boost add the following line to /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="quiet amd_pstate=passive"

after saving the file dont forget to run update-grub and reboot

For an explanation what this does you can check this https://docs.kernel.org/admin-guide/pm/amd-pstate.html

There is a down side, the cpu wont go down to 400 MHz, so power consumtion will go up

Ill do some more tinkering and see If I can get it to go to low idle frequency
 
can confirm the boosting and sensors issues also happen with passing only the first SATA controller on my machine.
Pretty frustrating. the sensors i can get away with some custom fan profile, but having considerable amount of power disabled on the CPU that I pay extra money for is really annoying.
 
Fl1pFl0p said:
It seems it has something to do with the amd_pstate driver. It seems sensor communication isnt working when forwarding both sata controllers. this might also affect the amd_pstate drive (didn't check the code if it requires temperature sensors)

If you want to get the cpu to boost add the following line to /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="quiet amd_pstate=passive"

after saving the file dont forget to run update-grub and reboot

For an explanation what this does you can check this https://docs.kernel.org/admin-guide/pm/amd-pstate.html

There is a down side, the cpu wont go down to 400 MHz, so power consumtion will go up

Ill do some more tinkering and see If I can get it to go to low idle frequency
Click to expand...
On my searches online, your comment is the only one who gets closer to a possible solution.
Were you able to confirm if this indeed solves problem (both SATA controllers passthrough without CPU throttling)?
 
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