Skip site navigation (1)Skip section navigation (2)
Date:      Thu, 29 Oct 2020 13:26:55 +0100
From:      Michael Tuexen <Michael.Tuexen@macmic.franken.de>
To:        Javi Hotmail <volkovdablo@hotmail.com>
Cc:        freebsd-ppc@freebsd.org
Subject:   Re: Question about xserve G5
Message-ID:  <B20755EC-8EA1-4326-B4D8-EF657ACF73ED@macmic.franken.de>
In-Reply-To: <DB8PR04MB68602F9341DEED4BA6808046AC140@DB8PR04MB6860.eurprd04.prod.outlook.com>
References:  <DB8PR04MB68602F9341DEED4BA6808046AC140@DB8PR04MB6860.eurprd04.prod.outlook.com>

next in thread | previous in thread | raw e-mail | index | archive | help


> On 29. Oct 2020, at 10:51, Javi Hotmail <volkovdablo@hotmail.com> wrote:
> 
> Hello all,
> 
> I'm new in this mailing list, although I've been going back and forth
> with PPC (G4/G5) and FreeBSD since 9.0.
> 
> I have a question that perhaps some of you already stumbled across, but
> I wanted to know if there is a way to get it to work before I jump in
> the code.
> 
> I have a xserve G5 dual 2.3Ghz, and I installed FreeBSD 12.1. Works
> quite well, but I cannot get cpufreq + powerd/powerdxx to work at all.
> 
> I get this:
> 
> # powerdxx
> powerd++: (ENOFREQ) cannot access dev.cpu.0.freq, at least the first CPU
> core must support frequency updates
> 
> 
> This is the relevant part of sysctl:
> # sysctl dev.cpu
> dev.cpu.1.%parent: cpulist0
> dev.cpu.1.%pnpinfo: name=PowerPC,G5
> dev.cpu.1.%location:
> dev.cpu.1.%driver: cpu
> dev.cpu.1.%desc: Open Firmware CPU
> dev.cpu.0.%parent: cpulist0
> dev.cpu.0.%pnpinfo: name=PowerPC,G5
> dev.cpu.0.%location:
> dev.cpu.0.%driver: cpu
> dev.cpu.0.%desc: Open Firmware CPU
> dev.cpu.%parent:
> 
> The issue is that after few minutes the fans ramp up to insane levels,
> and my goal with this is to use powerd or powerdxx to manage the situation.
The fans ramping up is a known issue. One way to work around it is to
disable SMP.

To disable SMP, put in /boot/loader.conf
kern.smp.disabled=1

Best regards
Michael
> 
> 
> Thanks in advance,
> 
> Javi.
> 
> _______________________________________________
> freebsd-ppc@freebsd.org mailing list
> https://lists.freebsd.org/mailman/listinfo/freebsd-ppc
> To unsubscribe, send any mail to "freebsd-ppc-unsubscribe@freebsd.org"




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?B20755EC-8EA1-4326-B4D8-EF657ACF73ED>