Bug 463603 - [LTC 6.0 FEAT] 201168:Linux Support for Dynamic Memory Detach
[LTC 6.0 FEAT] 201168:Linux Support for Dynamic Memory Detach
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: kernel (Show other bugs)
s390x All
high Severity high
: alpha
: 6.0
Assigned To: Hans-Joachim Picht
Martin Jenner
: FutureFeature
Depends On:
Blocks: 356741 RHEL6Kernel2.6.27 515068
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Reported: 2008-09-23 23:00 EDT by IBM Bug Proxy
Modified: 2010-05-11 10:52 EDT (History)
4 users (show)

See Also:
Fixed In Version:
Doc Type: Enhancement
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2009-09-22 17:09:53 EDT
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description IBM Bug Proxy 2008-09-23 23:00:51 EDT
=Comment: #0=================================================
Emily J. Ratliff <emilyr@us.ibm.com> - 2008-09-16 18:04 EDT
1. Feature Overview:
Feature Id:	[201168]
a. Name of Feature:	Linux Support for Dynamic Memory Detach
b. Feature Description
Provide the System z platform support for dynamic memory detach. Requires optional Highmem
Allocation of Dynamically Attached memory

2. Feature Details:
Sponsor:	zSeries

Arch Specificity: Both
Affects Core Kernel: Yes
Delivery Mechanism: Direct from community
Category:	Kernel
Request Type:	Kernel - Enhancement from IBM
d. Upstream Acceptance:	Accepted
Sponsor Priority	1
f. Severity: High
IBM Confidential:	no
Code Contribution:	IBM code
g. Component Version Target:	2.6.27

3. Business Case
RAS: keep System available despite a configuration change. Increases System Fairness by giving back
unneeded Resources and thus improves Workload Balancing.

4. Primary contact at Red Hat: 
John Jarvis

5. Primary contacts at Partner:
Project Management Contact:
Hans-Georg Markgraf, mgrf@de.ibm.com, Boeblingen 49-7031-16-3978

Technical contact(s):
Gonzalo Muelas Serrano, gmuelas@de.ibm.com

IBM Manager:
Thomas Schwarz, t.schwarz@de.ibm.com
Comment 1 Bill Nottingham 2008-10-02 16:19:05 EDT
Did this make 2.6.27?
Comment 2 Gonzalo Muelas Serrano 2008-10-31 07:07:23 EDT
Correct, this is upstream with kernel 2.6.27
Comment 3 Bill Nottingham 2008-10-31 12:18:15 EDT
Since RHEL 6 will include at least 2.6.27, setting this to MODIFIED.

The feature requested has already been accepted into the upstream code base
planned for the next major release of Red Hat Enterprise Linux.

When the next milestone release of Red Hat Enterprise Linux 6 is available,
please verify that the feature requested is present and functioning as
Comment 4 Hans-Joachim Picht 2009-09-22 17:09:53 EDT
Code is included in the rhel6 kernel via upstream. Marked as
CLOSED/CURRENTRELEASE by Hans-Joachim Picht <hpicht@redhat.com>
Comment 5 IBM Bug Proxy 2010-05-11 10:52:56 EDT
------- Comment From mgrf@de.ibm.com 2010-05-11 10:48 EDT-------
This feature is verified on R6 betas
-> set to verified

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