Comment 550 for bug 88746

Perry E. Metzger wrote on 2009-09-14:
> No it isn't. Other operating systems don't have the problem.

Chip has bug, but the workaround there, the patch said.

> /* SB600 and old version of SB700 have a bug in EHCI controller,
> * which causes usb devices lose response in some cases.
> */
  ...
> ehci_info(ehci, "applying AMD SB600/SB700 USB "
> "freeze workaround\n");

Maybe, other OS's drivers implement the same workaround.