While running kernel 3.16.7-29 on an AMD based machine the clock speed is being changed on the DDR3 modules. This is causing issues with our debugging tools which rely on the clock.
As far as I know this should only be changed following a POWER DOWN or SELF REFRESH sequence. This only seems to happen when Linux is booted and not under the BIOS. I have searched in the kernel code and on the internet and although there is information and patches regarding power saving modes I cannot find any code in the kernel I am using. Can someone please give me any information on the source of this and preferably how it can be stopped? I am not subscribed to the list and would like to be copied personally with any responses.
