Comment 8 for bug 270794

i have the same problem but i have only 1 sata hd (3 ntfs partitions and 1 ext 3)....
the problem happen when i make any thing that deals with the hard disk (either ntfs or ext3 partition)...
i also noticed that when ubuntu starts the hdd is configured for udma/133 and every thing is perfect but after playing a video or using firefox or any thing that performs io operations....it decreases till reaching udma/33 and then ubuntu freezes completely...
i have this problem from ubuntu 8.04 ...please help :(