Bug 747292 - booting latest kernel on llano system has wrong resolution and can cause memory corruption
Summary: booting latest kernel on llano system has wrong resolution and can cause memo...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: kernel
Version: 6.2
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Dave Airlie
QA Contact: Desktop QE
URL:
Whiteboard:
Depends On:
Blocks: 750914
TreeView+ depends on / blocked
 
Reported: 2011-10-19 12:00 UTC by Dave Airlie
Modified: 2011-12-06 14:18 UTC (History)
5 users (show)

Fixed In Version: kernel-2.6.32-212.el6
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2011-12-06 14:18:16 UTC
Target Upstream Version:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2011:1530 0 normal SHIPPED_LIVE Moderate: Red Hat Enterprise Linux 6 kernel security, bug fix and enhancement update 2011-12-06 01:45:35 UTC

Description Dave Airlie 2011-10-19 12:00:34 UTC 
Description of problem:

Boot the latest EL6.2 development kernel on a llano system (with VGA unplugged and DVI plugged in), and it misdetects a connected VGA device. While debugging this problem upstream we noticed a memory corruption issue was also being caused by the VGA load detection process.

There are a group of fixes upstream that need to be backported to fix this issue.

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


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Additional info:
Comment 1 Dave Airlie 2011-10-19 12:02:12 UTC 
this may need AMD help in QA, as I don't think QE have this hardware in house.

I have backported the patches and confirmed they fix the bug on my llano system.

There may be affected llano hw in Westford.
Comment 2 RHEL Program Management 2011-10-19 12:11:07 UTC 
This request was evaluated by Red Hat Product Management for inclusion
in a Red Hat Enterprise Linux maintenance release. Product Management has 
requested further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed 
products. This request is not yet committed for inclusion in an Update release.
Comment 5 Aristeu Rozanski 2011-10-25 14:52:06 UTC 
Patch(es) available on kernel-2.6.32-212.el6
Comment 11 errata-xmlrpc 2011-12-06 14:18:16 UTC 
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-2011-1530.html
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