Hi, Since 2.6.8-rc1, DMA does not work for me. I've tried (almost) all kernels since that one: 2.6.8-rc[1234], 2.6.8.1 and 2.6.9-rc2. With all of them I get the same result: A hdparm -d tells me that DMA is off (and in fact, it is off as I can see from the numbers of a hdparm -t). And if I try to activate it with hdparm -d1, it gives me a "operation not supported" error. The last one that I've ben able to make DMA work is 2.6.7. Attached is the output of: * lspci -v * hdparm -I /dev/hda * /proc/cpuinfo * cat /boot/config-2.6.9-rc2 | grep -i ^config * dmesg (right after booting both 2.6.7 and 2.6.9-rc2) Am I doing something wrong? Do I need to provide more information? Many thanks in advance. -- Kiko Private mail is preferred encrypted: http://www.pirispons.net/pgpkey.html