Bug 115656

Summary:	Misdetection of PS/2 hangs entire system
Product:	[Fedora] Fedora	Reporter:	Alan Cox <alan>
Component:	kernel	Assignee:	Arjan van de Ven <arjanv>
Status:	CLOSED RAWHIDE	QA Contact:	Brian Brock <bbrock>
Severity:	high	Docs Contact:
Priority:	medium
Version:	rawhide
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
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Clone Of:		Environment:
Last Closed:	2004-04-21 17:11:44 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:
Bug Depends On:
Bug Blocks:	114961

Description Alan Cox 2004-02-14 14:22:50 UTC

Description of problem:

ASUS dual athlon SMP box. No PS/2 mouse. The kernel detects a PS/2
mouse and attempts to enable it. This jams IRQ 12 which the box then
disables. Unfortunately IRQ12 is actually assigned to the scsi
controller so the machine then drops dead.

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

FC2 test1

How reproducible:
100%


Steps to Reproduce:
1. Install on ASUS A7M 266D
2. Reboot
3. Observe
  
Actual results:

Hang (both SMP and non SMP)

Expected results:

Working system as with all previous releases.

Additional info:
The boot kernel works for some reason, although it too sees phantom
PS/2 mice. The phantom ports seem to be a 2.6 kernel bug as 2.4 gets
the detection right.

acpi=off does not help (it simply produces irq routing table errors
then hangs)
apm=off acpi=off pci=noacpi also doesnt help

Comment 1 Alan Cox 2004-04-21 17:11:44 UTC

The ps/2 specific issue seems to be ok now