IO slowdown with latest FC4 kernel

[Michael Nischt]

I've got the same problem, the harddisk in my dell notebook (precision
M70) extremly slowed down since the kernel update to 2.6.13-1.1526_FC4 -
it became absolutly impossible to work on this computer:

/dev/hda:
 Timing cached reads:   2784 MB in  2.00 seconds = 1391.91 MB/sec
 Timing buffered disk reads:    6 MB in  3.03 seconds =   1.98 MB/sec

Furthermore, I noticed that the harddrive formerly was /dev/sda1 and now
is /dev/hda1, which is probably the reason but I don't know how to fix
this. I hope there is an easy way, because I'm not that familiar with
linux to go into compiling the kernel.

best regards
-Michael Nischt