lkml.org 
[lkml]   [2004]   [Jul]   [12]   [last100]   RSS Feed
Views: [more markup]  [less markup]  [headers]  [forward] 
 
Messages in this thread
/
DateMon, 12 Jul 2004 10:19:36 +0100
FromSid Boyce <>
SubjectRe: 2.6.x Scheduler, preemption and responsiveness - puzzlement
Con Kolivas wrote:

> Sid Boyce writes:>>> Nuno Monteiro wrote:>>>>>>>> On 2004.07.11 23:55, Sid Boyce wrote:>>>>>>> I've been wondering why this is, I can't remember what the BIOS 
>>>> says  about the hard drives, from memory it looked OK, I think it 
>>>> was set to>>>>>>>>>>>> <snip snip>>>>>>>> PCI           IDE              nVidia Corporation nForce2 IDE (rev a2)>>>>>>>>>>>> <snip snip>>>>>>>> # CONFIG_BLK_DEV_AMD74XX is not set>>>>>>>>>>>> You don't have the driver for your IDE chipset compiled in. In the 
>>> "ATA/ ATAPI/MFM/RLL support" under "Device Drivers" menu select "AMD 
>>> and nVidia  IDE support". Also, you can disable the "Generic PCI IDE 
>>> Chipset Support"  and the "VIA82CXXX chipset support" you seem to 
>>> have enabled.
>>>
>>> Then you should be able to do DMA, and things will go a lot faster.
>>>
>>>
>>> Hope this helps.
>>>
>>>
>>>
>>>         Nuno>>>>>> Oops!, thanks. The previous motherboard used the VIA chipset, so that 
>> got missed when I changed over.>> Regards>> Sid.>>> DMA disabled is perhaps the most common reason for poor performance 
> under I/O loads. I think some cut down configurations that people have 
> used from their 2.4 installations have missed the appropriate IDE driver.
>> Cheers,> Con

That fixed the problem. When I checked my P-II 333 box and AMD64 laptop 
(VIA chipset), they were OK. Working on 4 boxes at the same time, I 
guess I got stuck in a VIA mental groove.
Regards
Sid.

-- 
Sid Boyce .... Hamradio G3VBV and keen Flyer
===== LINUX ONLY USED HERE =====
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 14:04    [from the cache]
©2003-2008