HDD dma probléma (ha bkapcs. nem megy)

Hali!

Ha hdparm-al bekapcsolom a dma-t, akkor nem tudom bemauntolni a hda1-et.
System: Compaq ML350 Debian Sarge 2.6.8 sajat kernel.
hda 120 GB HDD (maxtor,segate)
hdb dvd-rom
Amiket probaltam, 2.4 -es kernl image is csinalja, 2.6.15 kernel is ugyanez a hibajelenseg (ezek live cd disztrok). A 2.6.15 kernnellel egy desktop gepen, a HDD rendesen muxik dma-val.
A dvd-rom viszont remekul kezeli a dma-t.
Cserelgetuk a diszkeket, masik marka, slave,master egyedul, parban, a vegeredmeny ugyanez.

Kimenetek:
mount /mnt/hda1/
mount: wrong fs type, bad option, bad superblock on /dev/hda1,
missing codepage or other error
In some cases useful info is found in syslog - try
dmesg | tail or so

dmesg | grep hda
ide0: BM-DMA at 0x2000-0x2007, BIOS settings: hda:pio, hdb:DMA
hda: ST3120213A, ATA DISK drive
hda: max request size: 1024KiB
hda: 234441648 sectors (120034 MB) w/2048KiB Cache, CHS=16383/255/63
hda: hda1
EXT3 FS on hda1, internal journal
VFS: Can't find ext3 filesystem on dev hda1.
hda: DMA disabled
lspci | grep IDE
0000:00:0f.1 IDE interface: ServerWorks CSB5 IDE Controller (rev 93)