Re[2]: [KLUG Members] disable Hard Drive DMA?

[Tim Gray]

Didn't you mention that you were using Mandrake?

Press "I" for interactive startup and track what its doing manually
that way.  Then trace through the scripts at that runlevel to try
to determine your answer(s).  It's a pain, but educational at least...

--  Tim Gray


Friday, October 12, 2001, 1:42:51 PM, you wrote:

>>What does /sbin/hdparm /dev/hda report?
>>You can turn off DMA with /sbin/hdparm -d0 /dev/hda

CH> hdparm reports:
CH> multcount off
CH> I/O support 16 bit
CH> unmaskirq off
CH> using_dma off
CH> keepsettings off
CH> nowerr off
CH> readonly off
CH> readahead = 8 (on)

CH> DMA is already off by the time it's finished booting (it times out and
CH> gives up)  I'm trying to figure out what is being called that causes the
CH> timeout errors (if not hdparm) and where it is called from in the
CH> scripts.

>>You also may be able to disable DMA in the BIOS as well.
CH> I tried, no option

>>However, on anything but a fossil of a box DMA should work normally.
CH> Well, it's p133 laptop, so I'm not expecting the world of it.


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