Date: Sun, 09 Mar 2008 11:20:36 +0000 From: Rui Paulo <rpaulo@FreeBSD.org> To: Andriy Gapon <avg@icyb.net.ua> Cc: freebsd-hackers@freebsd.org, freebsd-acpi@freebsd.org Subject: Re: cx_lowest and CPU usage Message-ID: <47D3C804.9090307@FreeBSD.org> In-Reply-To: <47BEF2AA.900@icyb.net.ua> References: <479F0ED4.9030709@icyb.net.ua> <479F62D9.6080703@root.org> <47A33CCB.3090902@icyb.net.ua> <47B0C10F.6000109@icyb.net.ua> <47B4103A.6090902@icyb.net.ua> <uh7bq6jcveu.fsf@P142.sics.se> <47B4A103.7040801@icyb.net.ua> <47B4B31A.4020605@icyb.net.ua> <47B84E61.3060401@icyb.net.ua> <47BB375C.5010208@icyb.net.ua> <47BB4D5C.9000406@icyb.net.ua> <47BC7287.6000301@icyb.net.ua> <47BEF2AA.900@icyb.net.ua>
next in thread | previous in thread | raw e-mail | index | archive | help
Andriy Gapon wrote: > on 20/02/2008 20:33 Andriy Gapon said the following: >> on 19/02/2008 23:42 Andriy Gapon said the following: >>> The last result most probably means that RTC IRQ was not the interrupt >>> to wake CPU from sleeping state. >>> The first possibility that comes to mind is that on this particular >>> hardware RTC interrupt (IRQ8) is not able to wake the system from C2 state. >> So it seems that this was true. >> Here's a shortcut to the relevant info: >> PIIX4E (FW82371EB) specification >> DEVACTB — DEVICE ACTIVITY B (FUNCTION 3) pci register description >> BRLD_EN_IRQ8, bit 5 >> >> $ pciconf -r pci0:0:7:3 0x58 >> 03040c07 > > Attached is a patch that fixes the issue for me (without any > side-effects) and should not cause any harm for others. I committed your patch. Thanks! Regards, -- Rui Paulo
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?47D3C804.9090307>