Re: Realtime Preemption, 2.6.12, Beginners Guide?

["K.R. Foley" <kr@cybsft.com>]

K.R. Foley wrote:
> K.R. Foley wrote:
> 
>> Karsten Wiese wrote:
>>
>>> Am Mittwoch, 13. Juli 2005 16:01 schrieb K.R. Foley:
>>>
>>>> Ingo Molnar wrote:
>>>>
>>>>> * Chuck Harding <charding@llnl.gov> wrote:
>>>>>
>>>>>
>>>>>
>>>>>>> CC [M]  sound/oss/emu10k1/midi.o
>>>>>>> sound/oss/emu10k1/midi.c:48: error: syntax error before 
>>>>>>> '__attribute__'
>>>>>>> sound/oss/emu10k1/midi.c:48: error: syntax error before ')' token
>>>>>>>
>>>>>>> Here's the offending line:
>>>>>>>
>>>>>>> 48 static DEFINE_SPINLOCK(midi_spinlock __attribute((unused)));
>>>>>>>
>>>>>>> Lee
>>>>>>>
>>>>>>
>>>>>> I got it to compile but it won't boot - it hangs right after the
>>>>>> 'Uncompressing Linux... OK, booting the kernel' - I'm using .config
>>>>>
>>>>>
>>>>>
>>>>>> from 51-27 (attached)
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> and -51-27 worked just fine? I've uploaded -29 with the -28 io-apic 
>>>>> changes undone (will re-apply them once Karsten has figured out 
>>>>> what's wrong).
>>>>>
>>>>>     Ingo
>>>>
>>>>
>>>>
>>>> I too had the same problem booting -51-28 on my older SMP system at 
>>>> home. -51-29 just booted fine.
>>>>
>>>
>>> Have I corrected the other path of ioapic early initialization, which 
>>> had lacked
>>> virtual-address setup before ioapic_data[ioapic] was to be filled in 
>>> -51-28?
>>> Please test attached patch on top of -51-29 or later.
>>> Also on Systems that liked -51-28.
>>>
>>>     thanks, Karsten
>>>
>>>
>> Karsten,
>>
>> Just booted on my 2.6 dual Xeon w/HT and thus far all is well. I am 
>> still building on the older SMP system that didn't like -51-28. Will 
>> report after I try booting that one.
>>
>> <snip>
>>
> 
> Just booted on my older SMP box that barfed on -51-28. It would appear 
> that the init problem is resolved.
> 

DOH! All of the above is on -51-30 with Karsten's patch applied.

-- 
    kr