P4 harddisk UDMA problem

[Anders Lennartsson <anders.lennartsson@foi.se>]

Greetings

I have access to a few Pentium4 machines where I administer Debian. 

They all suffer from the same problem, at boot time the harddisk is not
set to use
UDMA by default and thus get looooow performance.
By hdparm -d 1 one can fix this. 

The kernel is of course compiled with the flag USE_DMA_BY_DEFAULT set,
and it works nicely on
another bunch of Athlon machines I run.

By the way, the P4's all have Intel motherboards, of varying models,
D850MV, D850GB etc.

Any pointers appreciated,
Anders


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