Date: Sun, 28 Oct 2012 14:50:01 -0500 (CDT) From: Nathan Whitehorn <nwhitehorn@freebsd.org> To: Michael Copeland <michael@kryptos-security.com> Cc: freebsd-ppc@freebsd.org Subject: Re: Quick question about dev.smu dev.smusat on powermac11,2 Message-ID: <alpine.BSF.2.00.1210281448390.41855@banshee.munuc.org> In-Reply-To: <CAKLtBCjb830DE4aYt5J8E=Do_NeahxRif6Rp5RON7E8rY3wdOQ@mail.gmail.com> References: <CAKLtBCjdNpXKktDX0YAdRn2OPEAeXoP3G9XY-aDuRBCLdXKdPA@mail.gmail.com> <alpine.BSF.2.00.1210281249500.41855@banshee.munuc.org> <CAKLtBCjb830DE4aYt5J8E=Do_NeahxRif6Rp5RON7E8rY3wdOQ@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --1464019946-1187362250-1351453801=:41855 Content-Type: TEXT/PLAIN; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE On Sun, 28 Oct 2012, Michael Copeland wrote: >=20 >=20 > On Sun, Oct 28, 2012 at 3:42 PM, Nathan Whitehorn <nwhitehorn@freebsd.org= > wrote: > It should work fine (it does on my desktop, which is a G5 of the sa= me model). Since I wrote that > program, fan control has moved to the kernel. The fans should be fa= irly quickly responsive (the > algorithm is quite basic) but should never go to full or cause a pa= nic. Which release are you > running? There were some improvements to fan control in 9.1. > -Nathan > > On Sun, 28 Oct 2012, Michael Copeland wrote: > > Is the fan control disabled by default on a GP dual core? Only reas= on I ask > is that the fans on spool up under full load, and that usually resu= lts in a > panic. > I did make a rather simple program and associated script to control= the > fans, but this happens to result in the fans constantly going up an= d down > by about 300-400 rpm even while doing something simple like portsna= p > extract. I checked the list after doing that, and found a thread wh= ere > someone else already did the same thing(a common problem of mine, I= usually > try to fix it myself without checking the list). I swapped out the = program > written by Nathan, but my results are the same. It DOES work, but I= was > only wondering if it's normal for the fan speed to vary so often. > > Thanks, > > Michael > _______________________________________________ > freebsd-ppc@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-ppc > To unsubscribe, send any mail to "freebsd-ppc-unsubscribe@freebsd.org" >=20 > Hi Nathan, > It's 9.1-PRE, from.. 3 days ago.=A0 > The fans, without my app running either spin at the lowest rpm, or the fa= stest. Once it's at max rpm, in 5 > minutes it will panic. >=20 > Interesting -- that should not happen, to say the least. Could you report= =20 what the panic is and print out the contents of the dev.smu and dev.smusat= =20 registries? You can also disable automatic fan control by the sysctl=20 machdep.manage_fans (although I'd like to find and fix the actual problem= =20 here) -Nathan --1464019946-1187362250-1351453801=:41855--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?alpine.BSF.2.00.1210281448390.41855>