Bug 74807

Summary:	Firewire (IEEE1394) SMP hard locks
Product:	[Retired] Red Hat Linux	Reporter:	Phil Messenger <phil>
Component:	kernel	Assignee:	Arjan van de Ven <arjanv>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Brian Brock <bbrock>
Severity:	high	Docs Contact:
Priority:	medium
Version:	8.0	CC:	herrold, moneta.mace, spacewar
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:	2004-09-30 15:39:57 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 Phil Messenger 2002-10-01 20:38:53 UTC

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.1) Gecko/20020921

Description of problem:
If I hot plug a Firewire device on either of my SMP machines, I get hard locks.
This happens every time. Iterestingly, if I plug the device in whilst the
machine is powered down, it works as expected. 

I experienced this problem in the 2.4.10 days. At that time, the problem was
caused by dodgy locking in sbp2.c. I haven't had time to investigate in any
depth this time round.

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


How reproducible:
Always

Steps to Reproduce:
1. power machine on
2. plug IEE1394 device in
3. paff. Hard lock, no panic, just hard lock.
	

Additional info:

Bog standard TI chipset cards, Via based dual processor P3 system and 760MPX
dual Athlon MP system.

Comment 1 Eric Smith 2002-10-15 07:46:55 UTC

I have the same problem whether the firewire devices are hot-plugged or are
present before power-up.  Asus dual-Athlon motherboard using 760MPX chipset,
with two 1394 controllers, a generic OHCI card and a Creative Labs Audigy.
Three Maxtor drives, two CD-R, and a DVD-R on the generic OHCI card, nothing
plugged into the Audigy.

Comment 2 R P Herrold 2002-10-23 06:27:25 UTC

Looks like # 76303 as to the second comment

Comment 3 Bugzilla owner 2004-09-30 15:39:57 UTC

Thanks for the bug report. However, Red Hat no longer maintains this version of
the product. Please upgrade to the latest version and open a new bug if the problem
persists.

The Fedora Legacy project (http://fedoralegacy.org/) maintains some older releases, 
and if you believe this bug is interesting to them, please report the problem in
the bug tracker at: http://bugzilla.fedora.us/