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User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)

Description of problem:
I have a TYAN BE6 revision 1 motherboard.  This motherboard has a 
HPT366 controller built-in in addition to 2 standard IDE 
controllers.  I have installed a Western Digital WD400BB drive on the 
1st HPT366 controller.  This drive support up to ATA100.  Since the 
drive is on a ATA66 controller I set the max speed of the drive using 
WDC utilities to ATA66.  For some reason the kernel detects that the 
max speed of the drive is UDMA4(ATA100).  This causes large reads to 
become corrupted.  I noticed issues when trying to use this machine 
as a kickstart server.  The remote machine would get MD5 errors on 
various packages during NFS transfers.  I ended up using hdparm -X 
udma2 /dev/hdg1 to resolve the issue temporarily.  I was also seeing 
issues when writing large amounts of data to this drive.

Version-Release number of selected component (if applicable):
kernel-2.4.20-8

How reproducible:
Always

Steps to Reproduce:
1. TYAN BE6 board with HPT366 controller
2. Western Digital UDMA4 Drive
3. Connect drive to 1 of the HPT366 controllers.
4. Set drive with WDC utilities to UDMA2
5. Create a filesystem on this drive.
6. Use this filesystem as your kickstart software repository
7. Share the filesystem using NFS
8. Attempt a kickstart install from a remote client.
    

Actual Results:  MD5 errors occured a different places during the 
kickstart install and it would fail.  Multiple attempts would cause 
different packages to appear corrupted.

Expected Results:  Good kickstart install

Additional info: