Bug 73702

Summary:	Unable to handle kernel NULL pointer dereference at virtual address 00000000
Product:	[Retired] Red Hat Linux	Reporter:	simon.greaves
Component:	kernel	Assignee:	Arjan van de Ven <arjanv>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Brian Brock <bbrock>
Severity:	high	Docs Contact:
Priority:	medium
Version:	7.3
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:	2004-09-30 15:39:55 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 simon.greaves 2002-09-09 01:04:19 UTC

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.1) Gecko/20020827

Description of problem:
The system is a DELL Poweredge 2550 rackmount PIII server, currently very
lightly loaded (not yet in service). The kernel did an 'oops' in the early
morning (04:04 local time, GMT +12). Would respond to pings, but attempts to
connect with ftp, ssh or to login to the console all just hang. I rebooted it
and checked in /var/log/messages where I found the 'oops' message.




Version-Release number of selected component (if applicable):
kernel-2.4.18-10

How reproducible:
Didn't try

Steps to Reproduce:
1.Rebooted the sytem today, wait to see if it happens again.
2.
3.
	

Additional info:

We use the same version of RedHat (7.3, kernel 2.4.18-10 i686) on several
servers here (Not the same hardware though) and have had no problems like this.
The system is being used by two developers who are using MySQL and PHP/apache
and were not using it at the time of the incident. The system is also being used
as an anonymous ftp server for kickstart installs to a small lab and as a
printserver. None of these generate much load.

IPchains config denies access from all but a few local addresses. Kernel is
stock 2.4.18-10 from the binary RPM, verifies ok.

Not much info in the /var/log/messages file, just:

Sep  9 04:04:51 belo kernel: Unable to handle kernel NULL pointer dereference at
 virtual address 00000000
Sep  9 04:04:51 belo kernel:  printing eip:
Sep  9 04:04:51 belo kernel: c014316f
Sep  9 04:04:51 belo kernel: *pde = 00000000
Sep  9 04:04:51 belo kernel: Oops: 0000

Comment 1 Bugzilla owner 2004-09-30 15:39:55 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/