Date: Sun, 29 Jan 2006 01:30:07 -0500 From: Kris Kennaway <kris@obsecurity.org> To: Nate Lawson <nate@root.org> Cc: cvs-src@FreeBSD.org, Nate Lawson <njl@FreeBSD.org>, src-committers@FreeBSD.org, cvs-all@FreeBSD.org, Kris Kennaway <kris@obsecurity.org> Subject: Re: cvs commit: src/etc/defaults rc.conf Message-ID: <20060129063007.GA47800@xor.obsecurity.org> In-Reply-To: <43DC5E0B.40003@root.org> References: <200601290551.k0T5pwEC028440@repoman.freebsd.org> <20060129060654.GA47495@xor.obsecurity.org> <20060129061300.GA47596@xor.obsecurity.org> <43DC5E0B.40003@root.org>
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[-- Attachment #1 --] On Sat, Jan 28, 2006 at 10:17:47PM -0800, Nate Lawson wrote: > Kris Kennaway wrote: > >On Sun, Jan 29, 2006 at 01:06:54AM -0500, Kris Kennaway wrote: > > > >>On Sun, Jan 29, 2006 at 05:51:58AM +0000, Nate Lawson wrote: > >> > >>>njl 2006-01-29 05:51:58 UTC > >>> > >>> FreeBSD src repository > >>> > >>> Modified files: > >>> etc/defaults rc.conf > >>> Log: > >>> Enable the lowest Cx state by default. This will save power and we have > >>> had enough testing of acpi_cpu to know this is stable now. > >> > >>On my desktop system (running RELENG_6 though), setting > >>hw.acpi.cpu.cx_lowest=C0 causes atrocious performance. Is it broken > >>in 6.x? > > > >C2, sorry. > > Ah, C0 should be disallowed already I thought (try it). > > As for C2, I MFCd a patch to acpi_cpu.c in November that should prevent > this (1.57.2.1). Do you get a printf on console? This might be it: turns out I never rebooted to the newer kernel I built earlier this month, and I am still running a kernel from Nov 6. I'll get back to you. Kris [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQFD3GDvWry0BWjoQKURAqtbAKCcW9ptDqublO+OpBMKk3Pg/M7vIQCgiPvl 2wHnPgJXD6Q7WsXOWljTxRY= =wHmY -----END PGP SIGNATURE-----help
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