Bug 467781 – MRG kernel has the e1000e bug

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Bug 467781 - MRG kernel has the e1000e bug

Summary:	MRG kernel has the e1000e bug

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise MRG
Classification:	Red Hat
Component:	realtime-kernel (Show other bugs)
Sub Component:
Version:	1.1
Hardware:	All Linux

Priority	urgent Severity urgent
Target Milestone:	1.1
Target Release:	---
Assigned To:	Steven Rostedt
QA Contact:
Docs Contact:

URL:
Whiteboard:
Keywords:

Depends On:
Blocks:
	Show dependency tree / graph

Reported:	2008-10-20 16:59 EDT by Steven Rostedt
Modified:	2009-01-22 05:43 EST (History)
CC List:	3 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2009-01-22 05:43:58 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)
back port dynamic ftrace fixes to handle e1000e bug (10.54 KB, patch) 2008-10-22 23:15 EDT, Steven Rostedt	no flags	Details \| Diff
back port of recordmcount.pl (8.31 KB, patch) 2008-10-22 23:17 EDT, Steven Rostedt	no flags	Details \| Diff
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2009:0009	normal	SHIPPED_LIVE	Important: kernel security and bug fix update	2009-01-22 05:43:54 EST

Groups: None (edit)

Description Steven Rostedt 2008-10-20 16:59:54 EDT

The cause of the bug that corrupted the e1000e chips in 2.6.27-rc was traced down to the dynamic ftrace tracer. Since MRG has the dynamic ftrace tracer, I looked into it. After reviewing the code, I believe this bug exists in the MRG tracer kernel.

I have a fix for 2.6.28 that I will back port to the MRG kernel.

Comment 1 Steven Rostedt 2008-10-22 23:15:29 EDT

Created attachment 321236 [details]
back port dynamic ftrace fixes to handle e1000e bug

This patch adds protection against the occurrence of the e1000e corruption bug.

It backports several aspects of the mainline kernel. See patch description for details.

Comment 2 Steven Rostedt 2008-10-22 23:17:02 EDT

Created attachment 321237 [details]
back port of recordmcount.pl

This backport of recordmcount.pl limits the processing of mcount to only the .text section. This helps prevent processing of code that might be freed at a later time.

Comment 3 Luis Claudio R. Goncalves 2008-10-23 08:34:19 EDT

Added to -88

Comment 5 David Sommerseth 2008-11-19 13:02:37 EST

Found the attachments in the mrg-rt.git tree as commit 23a888a376a1f8fe3dfff714a1d53bfd3e62be2c  and  3469966152d6203d146f78a6f5ad549afcfb6b2d

Found the commits being implemented in the mrg-rt-2.6.24.7-93 branch.

Comment 7 errata-xmlrpc 2009-01-22 05:43:58 EST

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 therefore 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-2009-0009.html

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