Re: [Xenomai-help] Xenomai on Athlon XP (and PIII)

[Jan Kiszka <jan.kiszka@domain.hid>]

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Wolfgang Grandegger wrote:
> Gilles Chanteperdrix wrote:
>> Jan Kiszka wrote:
>>> Wolfgang Grandegger wrote:
>>>
>>>> Hello,
>>>>
>>>> I'm currently setting up a PC for Xenomai-Tests. I'm using my good old
>>>> PC with an Athlon XP (Thunderbird) for this purpose. The kernel
>>>> hangs at
>>>> boot time when I enable APIC via boot argument (lapic). With local APIC
>>>> disabled the kernel boots but I see some Opps messages while running
>>>> the
>>>> latency test and trying a slogin to the system (in the scheduler). Are
>>>> there any known issues with this X86 arch? I remember, that I have seen
>>>> similar problems with my (old) PIII-Notebook (lapic did not work).
>>>
>>>
>>> No known issues, both scenarios *must* work, the P-III at least in PIC
>>> mode when Linux refuses to enabled lapic on boot.
>>
>> Some athlons have a buggy local APIC, so disabling it may be the best
>> option.
> 
> Ah, I found some similar statement on the RTAI mailing list as well.

Still, it must neither oops nor hang in this case - or does plain Linux
so as well?

Jan


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