Bug 177490

Summary:	x86_64 boot stops at "io scheduler cfq registered" with ati chipset
Product:	[Fedora] Fedora	Reporter:	Jens Petersen <petersen>
Component:	kernel	Assignee:	Dave Jones <davej>
Status:	CLOSED RAWHIDE	QA Contact:	Brian Brock <bbrock>
Severity:	high	Docs Contact:
Priority:	medium
Version:	rawhide	CC:	pfrields, 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:	2006-01-13 05:00:40 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 Jens Petersen 2006-01-11 07:18:46 UTC

Description of problem:
I can get recent rawhide (fc devel) x86_64 kernels to boot on my AMD64 box.

Version-Release number of selected component (if applicable):
kernel-2.6.15-1.1826.2.9_FC5.x86_64
kernel-2.6.15-1.1826.2.5_FC5.x86_64
kernel-2.6.15-1.1826.2.4_FC5.x86_64

How reproducible:
everytime

Steps to Reproduce:
1. Try to boot boot.iso
2. Or install above kernels in say rawhide-20060103 and reboot
  
Actual results:
Boot stops at "io scheduler cfq registered" message and nothing happens.
Need to powercycle to reboot.

Expected results:
Boot normally.

Additional info:
Kernels up to at least 2.6.14-1.1808_FC5 are ok (I don't have any builds
after rawhide-20060103 and before rawhide-20060107 to test) so this started
happening recently, ie this year.

Comment 1 Jens Petersen 2006-01-11 07:21:05 UTC

Fwiw NumLock is still one when it hangs just as a point of reference.

Comment 2 Sammy 2006-01-11 15:08:19 UTC

Can't reproduce this on my x86_64 system. Do you have ACPI on? The new
kernels need acpi to be on. The next line after the cfq line is ACPI: PCI ...
so if you have noacpi on your kernel line, remove and try again.

Comment 3 Dave Jones 2006-01-12 04:30:14 UTC

if you boot with initcall_debug whats the last thing it says ?
Does this have an ATI chipset by any chance ? (If so 2.6.15-1826.2.10 should fix it)

Comment 4 Jens Petersen 2006-01-12 04:40:18 UTC

Yes it does: ATI Radeon Xpress 200.

Comment 5 Dave Jones 2006-01-12 04:42:12 UTC

ok. magic 8-ball says... "Fixed for tomorrows build".

Comment 6 Jens Petersen 2006-01-13 05:00:40 UTC

Confirmed fixed.  Thanks.