Bug 74175

Summary:	IRQ conflict, by this DMA on drive unavailable
Product:	[Retired] Red Hat Linux	Reporter:	Denis Fedorishenko <nuclearcat>
Component:	kernel	Assignee:	Arjan van de Ven <arjanv>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Brian Brock <bbrock>
Severity:	low	Docs Contact:
Priority:	medium
Version:	7.3
Target Milestone:	---
Target Release:	---
Hardware:	i386
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2003-06-08 02:27:13 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 Denis Fedorishenko 2002-09-17 13:14:32 UTC

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.0.0) Gecko/20020526

Description of problem:
SvrWks CSB5: IDE controller on PCI bus 00 dev 79
PCI: Device 00:0f.1 not available because of resource collisions
SvrWks CSB5: (ide_setup_pci_device:) Could not enable device.
Alan Cox says about some workaround, but i'm not know all details.
after this enabling DMA on hard drive impossible, this problem i see on many
systems. Alan Cox


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


How reproducible:
Always

Steps to Reproduce:
1.Enable PnP OS in BIOS? On most default settings IRQ conflict.
2.
3.
	

Actual Results:  Device XX:XX.X not available because of resource collisions

hdparm -d 1 /dev/hdb

setting using_dma to 1 (on)
 HDIO_SET_DMA failed: Operation not permitted


Additional info:

Comment 1 Colin Tinker 2002-10-13 16:38:18 UTC

I have this problem on 5 systems but it only applies to the cdrom.

Comment 2 Alan Cox 2003-06-08 02:27:35 UTC

The current errata kernels resolve this issue