Question about xserve G5

[Michael Tuexen]

> On 29. Oct 2020, at 20:15, Javi Hotmail <volkovdablo at hotmail.com> wrote:
> 
> Also another issue that (despite the fact that I cleaned the CPUs and
> added new thermal paste) they overheat and the system turns off.
> 
> With kern.smp.disabled=1 takes a bit longer, but it also shuts down. Is
> this also a known issue?
No. It only works around a bug which results is the fans getting loud without
this being needed.

Best regards
Michael
> 
> 
> Kind Regards,
> 
> Javi.
> 
> 
> On 29/10/2020 18:07, Javi Hotmail wrote:
>> Here it is.
>> 
>> 
>> Javi.
>> 
>> 
>> On 29/10/2020 14:14, Nathan Whitehorn wrote:
>>> Could you provide your dmesg? It would be nice to do what sensors you
>>> have.
>>> -Nathan
>>> 
>>> On 10/29/20 8:36 AM, Javi Hotmail wrote:
>>>> If I'm not mistake the issue then is how the PPC implementation reads
>>>> the device tree data from open firmware correct?.
>>>> 
>>>> I believe this implementation is within:
>>>> 
>>>> pcr.c        pmcr.c        pmufreq.c
>>>> 
>>>> 
>>>> Thanks in advance,
>>>> 
>>>> Javi.
>>>> 
>>>> 
>>>> On 29/10/2020 12:26, Michael Tuexen wrote:
>>>>>> On 29. Oct 2020, at 10:51, Javi Hotmail <volkovdablo at 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.
>>>>>> 
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>>> 
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