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Bug 175854

Summary:	[RHEL4-U3] Checking dump partition fails when a swap partition whose size is less than memory size is configured for diskdump.
Product:	Red Hat Enterprise Linux 4	Reporter:	Akira Imamura <aimamura>
Component:	kernel	Assignee:	Akira Imamura <aimamura>
Status:	CLOSED ERRATA	QA Contact:	Brian Brock <bbrock>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	4.3	CC:	anderson, jbaron, ktokunag, lwang, ntachino
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	RHSA-2006-0575	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2006-08-10 21:45:55 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:
Bug Depends On:
Bug Blocks:	181409

Description Akira Imamura 2005-12-15 19:32:19 UTC

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Description of problem:
Checking dump partition fails when a swap partition whose size is
less than memory size is configured for diskdump. A swap partition
as well as a normal dump partition should be configured for diskdump
even if the size of the partition is less than memory size only
when "dump_level" and/or "compress" that are module parameters are
specified as non-zero value. In other words, check_swap_partition()
in diskdump.c should not restrict the size of a swap partition
when partial dump or compressed dump is enabled.


Version-Release number of selected component (if applicable):
kernel-2.6.9-25

How reproducible:
Always

Steps to Reproduce:
1. Create a swap partition whose size is less than memory size.
2. Edit /etc/syscofig/diskdump so as to configure the swap partition as a dump device.
3. Run "service diskdump start" so as to start diskdump service.
4. Run "service diskdump status" so as to check that diskdump is enabled.
5. Panic the system.


Actual Results:  Checking dump partition fails.

Expected Results:  Checking dump partition succeeds. Then diskdump starts dumping memory.

Additional info:

Comment 2 Akira Imamura 2006-04-04 19:47:47 UTC

I've just posted the patch to rhkernel-list.

Thanks,
Akira

Comment 3 Jason Baron 2006-04-07 01:48:01 UTC

committed in stream U4 build 34.14. A test kernel with this patch is available
from http://people.redhat.com/~jbaron/rhel4/

Comment 4 Bob Johnson 2006-04-11 16:30:08 UTC

This issue is on Red Hat Engineering's list of planned work items 
for the upcoming Red Hat Enterprise Linux 4.4 release.  Engineering 
resources have been assigned and barring unforeseen circumstances, Red 
Hat intends to include this item in the 4.4 release.

Comment 6 Akira Imamura 2006-05-24 21:45:00 UTC

We have done testing of this BZ. There are no regressions
and unfixed bugs. So, I change the status to VERIFIED.

Comment 8 Red Hat Bugzilla 2006-08-10 21:45:56 UTC

An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2006-0575.html