Bug 734528 – kexec-tools: Add memory usage debugging capability in second kernel

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Bug 734528 - kexec-tools: Add memory usage debugging capability in second kernel

Summary:	kexec-tools: Add memory usage debugging capability in second kernel

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise Linux 6
Classification:	Red Hat
Component:	kexec-tools (Show other bugs)
Sub Component:
Version:	6.2
Hardware:	Unspecified Linux

Priority	medium Severity medium
Target Milestone:	rc
Target Release:	---
Assigned To:	Cong Wang
QA Contact:	Chao Ye
Docs Contact:

URL:
Whiteboard:
Keywords:	FutureFeature

Depends On:
Blocks:	743047
	Show dependency tree / graph

Reported:	2011-08-30 13:17 EDT by Vivek Goyal
Modified:	2013-09-29 22:26 EDT (History)
CC List:	7 users (show)

See Also:
Fixed In Version:	kexec-tools-2_0_0-199_el6
Doc Type:	Enhancement
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2011-12-06 13:19:41 EST
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2011:1532	normal	SHIPPED_LIVE	Moderate: kexec-tools security, bug fix, and enhancement update	2011-12-05 20:01:52 EST

Groups: None (edit)

Description Vivek Goyal 2011-08-30 13:17:02 EDT

Description of problem:

Provide a kdump option so that memory usage can be logged in second kernel at various stages. This can be useful to determine how much memory is needed in second kernel and in debugging to figure out who is consuming most memory.

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


How reproducible:


Steps to Reproduce:
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Actual results:


Expected results:


Additional info:

Comment 1 Vivek Goyal 2011-08-30 13:19:47 EDT

We are now going to ship little modified crashkernel=auto logic in kdump and we are hoping that will work out of the box on 80% of x86 configurations by default. If it does not above debugging aid should be useful to give some idea who is consuming the memory. So 6.2 sounds like the right time to ship it out in kexec-tools.

Comment 4 Américo Wang 2011-08-31 03:17:08 EDT

Hi, Vivek,

POST status is invalid for kexec-tools bugs. What's more, Jan's patch is against Fedora, doesn't apply to RHEL6, so I need to re-generate the patch.

Comment 12 Chao Ye 2011-09-19 03:20:27 EDT

Tested with RHEL6.2-20110907.+kernel-2.6.32-198.el6+kexec-tools-2.0.0-202.el6, all PASS:
===================================
0  PASS
1  PASS
2  PASS
3  PASS

https://beaker.engineering.redhat.com/jobs/133148

Change status to VERIFIED.

Comment 13 errata-xmlrpc 2011-12-06 13:19:41 EST

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHSA-2011-1532.html

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