Bug 211651

Summary:	booting 2.6.18-1.2200.fc5 hangs when 'ide=nodma' is used
Product:	[Fedora] Fedora	Reporter:	Need Real Name <howarth>
Component:	kernel	Assignee:	Alan Cox <alan>
Status:	CLOSED INSUFFICIENT_DATA	QA Contact:	Brian Brock <bbrock>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	5	CC:	davej, wtogami
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2007-01-02 15:16:36 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Need Real Name 2006-10-20 16:42:16 UTC

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.

Comment 1 Alan Cox 2006-11-29 16:00:17 UTC

Is anything else useful output if you boot with the "quiet" and "rhgb" also removed