As I mentioned before, also PMagic's kernel had some issues with USB devices, even after the current latest stable release (2013_02_28). That's why I suggested trying (for CPUStress) PMagic's kernel of the latest testing version(s). The sources are also found in the same place.
Can you give me a link to a forum post or web page of the USB problem you're talking about ?
I am not sure if your USB problem has something to do with my
USB problem, here. My problem here is because of the missing drivers. PMagic kernel has made some important drivers (ehci-hcd
, and others) into modules instead of built-in, so CPUstress cannot get those drivers unless I built them back in.
So this is what I've done with this custom kernel (in fixing the problem):
- Make ehci-hcd, uhci-hcd, ohci-hcd built-in. (These are so important that Ubuntu, for example, has make them built-in, too.)
- Allow module loading into kernel.
- Include usbhid, hid-generic, hid-logitech, hid-microsoft and other kernel modules in CPUstress initrd, so it can support special keyboards.
Outside the kernel, the mdev program in initrd has been configured to 'modprobe' the drivers when needed. That's how I get this problem solved.