Bug 30676

Summary:	[aic7xxx] Kernel panics when booting 'new' aix7xxx module on SMP system
Product:	[Retired] Red Hat Linux	Reporter:	Dana H. Myers <dana>
Component:	kernel	Assignee:	Doug Ledford <dledford>
Status:	CLOSED RAWHIDE	QA Contact:	Brock Organ <borgan>
Severity:	high	Docs Contact:
Priority:	medium
Version:	7.1
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:	2001-03-06 09:23:54 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 Dana H. Myers 2001-03-05 19:22:18 UTC

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Installed Fisher on dual-processor system (MMX-200 in venerable old Intergraph TD-40); upon reboot, system panics reliably when loading 
SCSI module - aic7xxxx (TD-40 contains an AIC-7850 on motherboard for SCSI support).

Booting the UP kernel succeeds; I'm then able to build an SMP kernel with the 'old' aic7xxx driver.
Booting SMP with the old aic7xxx works fine, as far as I can tell.

Reproducible: Always
Steps to Reproduce:
1. Install Fisher on TD-40 with dual CPU
2. Boot Linux in SMP mode
3. Watch it explode.  It blowed up.
	

Actual Results:  Systems reliably panics when loading aic7xxx module during boot

Expected Results:  System should display SCSI probe information and successfully boot up and run.

Comment 1 Dana H. Myers 2001-03-05 20:48:47 UTC

After a normal install, I can not reproduce this problem with Wolverine; I suspect Wolverine is using the 'old' aic7xxx driver.

Comment 2 Arjan van de Ven 2001-03-06 09:22:47 UTC

Yes Wolverine uses the old module.

Comment 3 Doug Ledford 2001-03-07 19:16:16 UTC

I'm closing this bug since it can't be reproduced with the old aic7xxx module
and I suspect it won't happen with the latest new aic7xxx module (version 6.1.4
or later) either.

Comment 4 Dana H. Myers 2001-03-07 20:19:05 UTC

I might not be too familiar with the bugzilla process, but in my kernel development days, we closed bugs as 'resolved' when the reported problem was 
verified as actually fixed, not when we suspected it would be fixed.

In any case, you might want to update the release notes for Fisher (which is still advertised as the 'latest beta' on the RedHat homepage) to include a 
mention that it will certainly blow up after installation on an SMP box with an Adaptec 7xxx-family adapter, and document the workaround (boot UP).

I will look forward to trying the 'new' driver on Wolverine when it is available (perhaps it is already?) and comment this bug with confirmation of resolution.

;-)

Comment 5 Michael K. Johnson 2001-03-12 17:54:06 UTC

Dana, a known bug with this description was fixed between Fisher
and Wolverine.  Doug said "suspect" in case of the remote possibility
that there is a different bug with a similar description.