Description of problem: We have verified on two identical machines built with
ASUS A8N-SLI Premium motherboards and AMD Athlon(tm) 64 X2 Dual Core Processor
4400+ processors that booting 2.6.18-1.2200.fc5 hangs when 'ide=nodma' is used.

Version-Release number of selected component (if applicable):
2.6.18-1.2200.fc5

How reproducible:
Always.

Steps to Reproduce:
1. Install x86_64 FC5 on an Asus A8N-SLI Premium motherboard with AMD Athlon(tm)
64 X2 Dual Core Processor 4400+ using the 'ide=nodma' kernel option. Both test
machines have SATA hard drives.
2. Verify that the older kernels can boot without problems when 'ide=nodma' is
present on the kernel option line in /boot/grub/grub.conf.
3. Yum install the latest 2.6.18-1.2200.fc5 x86_64 kernel and reboot.
  
Actual results:
The boot process hangs with...

Decompressing Linux .... done.
Booting the kernel.

Expected results:
The new kernel should boot normally with the 'ide=nodma' option as does
2.6.17-1.2187_FC5.

Additional info:
On both machines, deleting the 'ide=nodma' option from the kernel option line
for the new kernel in /boot/grub/grub.conf eliminates the hangs in booting on
both of these machines. I would also note that one test machine has the latest
released firmware for this motherboard and the other has the latest beta
firmware for this motherboard.