[PLUG] FOLLOWUP: Portland Linux/Unix Group General Meeting: OpenWrt Clinic, Part 2

Russell Senior russell at pdxlinux.org
Fri Jan 3 17:18:33 UTC 2025



On 1/3/25 08:22, Ted Mittelstaedt wrote:
> Any way to detect the problematical ram chips so the scaling_min_freq is a conditional setting based on the presense or absence of the chip?you

I don't think so. The memory is all initialized by the bootloading 
process before the kernel gets any control, so (i think) the kernel just 
sees a range of addresses. I think the primary clue that a device is 
affected is going to be the early vendor firmware version and the fact 
that it hangs during the sysupgrade process. So, you probably find out 
about it before it goes out the door and can modify it as needed.

-- 
Russell Senior
russell at pdxlinux.org


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