Bug 75348

Summary:	Machine crashes when accessing /proc/scsi/aic7xxx/0
Product:	[Retired] Red Hat Linux	Reporter:	Karl E. Kelley <kekelley>
Component:	kernel	Assignee:	Arjan van de Ven <arjanv>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Brian Brock <bbrock>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	7.3	CC:	gibbs
Target Milestone:	---
Target Release:	---
Hardware:	i686
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2003-01-13 17:58:11 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 Karl E. Kelley 2002-10-07 15:17:26 UTC

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Description of problem:
When /proc/scsi/aic7xxx/0 is accessed, the machine resets and reboots, with a message about NMI or memory error from the prom just before the grub menu.  This happens only on kernels 2.4.18-10 and 2.4.18-5.  Kernel 2.4.18-4 doesn't exhibit the problem.  The version of the aic7xxx driver is 6.2.6 in both the failing kernels.

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


How reproducible:
Always

Steps to Reproduce:
1.cat /proc/scsi/aic7xxx/0
2.
3.
 

Actual Results:  Machine resets and starts booting again.

Expected Results:  should see contents of /proc/scsi/aic7xxx/0 on screen.  This would be scsi controller configuration/statistics.

Additional info:

The machine in question is a Dell PowerEdge 1300 600Mhz, the SCSI controller in question is an AHA-2940-U2/U2W /7890/7891 (rev 1)
from /proc/pci.  All disks are on that controller.

Comment 1 Justin T. Gibbs 2003-01-11 00:29:02 UTC

This is most likely the "proc reads serial eeprom" bug.  What version of
the aic7xxx driver are you using?  This was corrected in 6.2.8.

Comment 2 Karl E. Kelley 2003-01-13 15:41:59 UTC

The version of the aic7xxx driver was 6.2.6 in the original report, and I have 
since updated to kernel 2.4.18-17.7.x which has aic7xxx version 6.2.8, and  
I no longer have the problem, for that kernel or the kernel 2.4.18-19.7.x, 
which I am now running. 
 
Kernel 2.4.18-17.7.x came out very shortly after this bug was reported, and I 
should have updated this entry then, but I lost track of it.  Sorry.

Comment 3 Justin T. Gibbs 2003-01-13 17:58:11 UTC

Resolved in aic7xxx driver version 6.2.8.  Resolution confirmed by
originator.