On Sat, 22 Mar 2008 13:24:54 -0700 David Brownell <david-b@xxxxxxxxxxx> wrote: > I noticed this with 2.6.25-rc2 (if not before), and the problem > is still there with 2.6.25-rc6-git (as of this AM). > > System is an Athlon64 single CPU laptop, and instead of reading a > few dozen wakeups per second, it says a many tens of thousands... > clearly wrong. In previous kernels it gave more plausible counts; > unfortunately high because of various un-evolved desktop tools in > this Ubuntu system (Feisty). > > Possibly more truthful, it says that the system never enters > C1 or C2, and spends all its time in C0. Though if I look at > /sys/devices/system/cpu/cpu0/cpuidle/state[01]/usage, that > seems to tell a different story ... it's C0 that's never used. > In previous kernels it reported time in both C0 and C2. ISTR > some patch to avoid C2, which would explain part of this. > > Comments or fixes, anyone? This is likely to be an acpi regression, isn't it? A git-bisect would be nice, please. -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
