Date: Tue, 06 Aug 2002 22:57:21 -0700 From: Terry Lambert <tlambert2@mindspring.com> To: Mario Sergio Fujikawa Ferreira <lioux@FreeBSD.org> Cc: freebsd-hackers@FreeBSD.org, Michael Nottebrock <michaelnottebrock@gmx.net>, Gary Jennejohn <garyj@jennejohn.org>, Aaron Seelyes <aseelye@urx.com> Subject: Re: Cooling idle Athlon/Duron processors? (vcool) Message-ID: <3D50B6C1.C247FF5B@mindspring.com> References: <20020807050725.96740.qmail@exxodus.fedaykin.here>
next in thread | previous in thread | raw e-mail | index | archive | help
Mario Sergio Fujikawa Ferreira wrote: > I know that this surfaces every once in a while. However, > I thought I could try to add more information. I did a little digging > on the issue. Every time this comes up I ask: o Have you got a software method of detecting use of a half frequency multiplier yet? o Have you got a software method of diabling the ACPI C2 and C3 low-power states? o Have you figured out how to make use of C2 and C3 vs. disconnect, so that this can be done at the user option? o Can you *reliably* detect the AMD Athlon Model 4 PLL via software? o Have you been able to get AMD to release the contents of their proprietary REvision documents #23614 and #24478 so that the CLK_CTRL MSR reconnect timining can implement the necessary workaround in software? o Is there a way to detect, in software, the variability of the power supply, since the thing can hang on wakeup with the 35-55W delta increase in power consumnption coming out of the sleep? Then I point out that ACPI is hard enough as it is, without trying t disable only parts of it so that you can do a weird hack on the Northbridge to support disconnect. Then I point them at: http://vcool.occludo.net/vc_freezes.html So that it's obvious that it's the author of "vcool" who has identified these problems, and not just me. Feel free to write a kernel module and/or provide patches for doing "vcool" for FreeBSD. Just as long as it's off by default, until you resolve the bullet pointed questions, above. -- Terry To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?3D50B6C1.C247FF5B>