Messages in this thread | | | Date | Tue, 14 Nov 2006 22:00:49 +0100 | From | Andreas Mohr <> | Subject | Re: CONFIG_NO_HZ: missed ticks, stall (keyb IRQ required) [2.6.18-rc4-mm1] |
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Hi,
On Tue, Nov 14, 2006 at 09:30:17PM +0100, Andreas Mohr wrote: > There's also some register description about APIC timer, > maybe I'll gather something about my C2 headaches from there.
OK, offset 0x8C Host Bus Power Management Control has (VT8235, but 8237 is same I think): bit 0 Internal Clock Stop During Suspend (default 0) bit 1 Internal Clock Stop During C3 (default 0) [internal PCI clock] bit 2 Internal Clock Stop for PCI Idle (default 0) [stop PCI clock when PCKRUN# high]
This wouldn't have anything whatsoever to do with my ACPI ""C2"" BIOS headaches, I assume??
Probably my BIOS has some of those bits tweaked to 1, need to fiddle with pciutils a bit...
Somehow I'm getting the impression that we should have been rewarding the BIOS with indifference all the time already in Linux, given how *very useful* those chipset registers are... Argh.
Burn ACPI, EFI, Real Mode, ..., let's go back to basics. :-P
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