Bug 8102

Summary:	kudzu doesn't appear to like shared IRQs
Product:	[Retired] Red Hat Linux	Reporter:	Gregory Leblanc <gleblanc>
Component:	kudzu	Assignee:	Bill Nottingham <notting>
Status:	CLOSED DEFERRED	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	6.1	CC:	gleblanc, rvokal
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:	2000-02-14 23:26:05 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 Gregory Leblanc 2000-01-02 03:56:01 UTC

I recently installed RH6.1 on a home PC that's chock full of cards.  I had
my Intel 82557 based NIC configured to share an IRQ with my AHA-3940UW.  It
seems that kudzu couldn't handle this, as it never found my NIC.  When I
moved things around to put that card on it's own IRQ, it seemed to be
detected and work properly.  I shuffeled things around again, and with
Donal Beckers help, got my NIC working with a shared IRQ, and kept my other
devices running.  I can probably reproduce this problem by installing RH6.1
on another partition, and I can provide a full hardware list upon request.

Comment 1 Bill Nottingham 2000-01-03 16:09:59 UTC

When they're set to share an IRQ, what does 'lspci' say?

Comment 2 Gregory Leblanc 2000-01-04 02:50:59 UTC

[gleblanc@peecee gleblanc]# lspci
00:00.0 Host bridge: Acer Laboratories Inc. M1541 (rev 04)
00:01.0 PCI bridge: Acer Laboratories Inc. M5243 (rev 04)
00:02.0 USB Controller: Acer Laboratories Inc. M5237 (rev 03)
00:07.0 ISA bridge: Acer Laboratories Inc. M1533 (rev b4)
00:0e.0 Ethernet controller: Intel Corporation 82557 (rev 01)
00:0f.0 IDE interface: Acer Laboratories Inc. M5229 (rev 20)
00:12.0 PCI bridge: Digital Equipment Corporation DECchip 21050 (rev 02)
01:00.0 VGA compatible controller: ATI Technologies Inc 215GB [Mach64 GB] (rev
5c)
02:04.0 SCSI storage controller: Adaptec AIC-7882U
02:05.0 SCSI storage controller: Adaptec AIC-7882U
[gleblanc@peecee gleblanc]#

Don't understand it all, but there it is.

Comment 3 Bill Nottingham 2000-01-18 16:57:59 UTC

Odd, it appears there in the PCI scan, so it should show up
in the probe. I take it this is completely repeatable?

Did the installer detect the nic?

Comment 4 Gregory Leblanc 2000-01-18 17:04:59 UTC

I repeated it with two or three attempts at installing RH6.1.  The installer did
not detect the NIC, but I was able to install it using both LinuxConf (ugly tool
that it is) and by editing the network startup scripts
(/etc/sysconf/network-scripts/).

Comment 5 Bill Nottingham 2000-02-08 22:51:59 UTC

Is the only difference in /etc/sysconfig/hwconf between the
case where they do and don't share IRQs the fact that the
network card is missing, or are other entries missing as
well?

Comment 6 Bill Nottingham 2000-02-14 23:25:59 UTC

There was a bug in the eepro driver in that it didn't like shared
IRQs; I believe this was fixed in the 2.2.14 kernel.

Comment 7 Bill Nottingham 2000-02-14 23:26:59 UTC

Repoen if this persists.