Re: Problems with PAE kernel sort of solved.
On Fri, 29 Jul 2011 12:38:39 -0400, Frank McCormick wrote:
> On 29/07/11 12:15 PM, Camaleón wrote:
>>>
>>> I have since discovered a couple of other people who have the same
>>> problem...all on machines using older (circa 2002) Intel boards and
>>> cpu's.
>>
>> (...)
>>
>> Then you better disable HT and use a "non-pae" kernel until someone can
>> provide more data on why/how the error is triggered. What happens with
>> a pae kernel of another distribution? Or with an own-complied kernel?
>> Are you experiencing the same? If "no", this can be a start point to
>> further debug the problem. If "yes"... well, time to upgrade that
>> motherboard or live with a 486 kernel O:-)
>
>
> this is /proc/cpuinfo with hyper-threading disabled..as you can see
> PAE is still exposed and the PAE kernel boots fine.
Well, I was wrong. Is not "pae" but "ht" flag what you are looking here :-)
Also, check that you have ACPI enabled in the BIOS.
(...)
> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
> pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe up pebs bts
> cid xtpr
(...)
> So as long as I disable HT in the BIOS, there is no problem...but that
> slows down this machine by about 10%.
Which is the expected behaviour when you disable HT. But the main problem
here is that you cannot boot your system with HT enabled in the BIOS so
you will have to try with a different set of kernels to find out where
the problem is and how to bypass it.
Greetings,
--
Camaleón
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