Li, Aubrey wrote: > Hi Mark, > > I noticed local APIC timer is used by cbe in the current system. > > And I got the following note from "Intel(r) 64 and IA-32 Architectures > Software Developer's Manual Volume 3A: System Programming Guide, Part 1" > > ----note---- > The APIC timer may temporarily stop while the processor is in deep > C-states or during transitions caused by Enhanced Intel SpeedStep(r) > Technology. > ----note end---- > > Did you see the timer stop on any platform? > Did you encounter any problem? > I didn't see any code care about this issue during the speed transition, > ;-)
There isn't any code to handle this because we were unaware of the possibility. Maybe we should check with Len concerning the validity of the statement and/or whether it only applies to certain family/models. No, I've never knowingly encountered a problem. Thanks, Mark
