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Description of problem:
There is no support for the VIPER 7441 ide chipset found on the Tyan 2468 GN in
the 2.4.9-34 kernel.  I have found that 7.3's 2.4.18-5 kernel has what appears
to be proper support but have not verified it. Booting the system with 2.4.9-34
loads the 'ide-disk' driver for this chipset and it does not properly recognize
DMA nor does it allow setting DMA levels.  The drives are WD800 and I have not
been able to test on different drives.

The system will lockup after repeated runs of Bonnie++.  I can usually run 10
iterations successfully then restart the test and only get to about 7 before the
sytem locks up completely.  After a soft reboot, Bonnie++ will run for around 4
iterations then after another soft reboot, only make 1 or 2 iterations.  It
seems to get progressively worse for some reason.  I have been able to boot a
newer custom kernel 2.4.18 (w/xfs) diskless (over a network before mounting the
local drives) and run the Bonnie++ benchmarks without any lockups.

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


How reproducible:
Always

Steps to Reproduce:
1. Install Tyan s2468 GN
2. Install RedHat 7.2
3. Update to 2.4.9-34
4. Attempt to change DMA mode or do major file writes and rewrites in default
mode (using Bonnie++)

Actual Results:  System will hard lock presumably due to bad UDMA support in the
ide-disk driver.

Expected Results:  system stability

Additional info: I have attempted a backport of the support seen in the 2.4.18-5
kernel, but have been unsuccessful.