Bug 1339281 - Enable CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE
Summary: Enable CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE
Keywords:
Status: CLOSED RAWHIDE
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: rawhide
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Kernel Maintainer List
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2016-05-24 14:34 UTC by Vitaly Kuznetsov
Modified: 2017-07-30 15:54 UTC (History)
7 users (show)

Fixed In Version:
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Environment:
Last Closed: 2016-05-26 19:13:24 UTC
Type: Bug
Embargoed:

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Description Vitaly Kuznetsov 2016-05-24 14:34:31 UTC 
Currently all newly hot-plugged memory remains in 'offline' state and manual actions are required to bring it online. Some other distributions like RHEL carry special udev rule with them:

SUBSYSTEM=="memory", ACTION=="add", ATTR{state}=="offline", ATTR{state}="online"

but this is not ideal and the rule is missing in Fedora.

To make things work automagically CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE option was introduced. I'd like to have it enabled in Fedora.

For additional info please see kernel commits 31bc3858ea3ebcc3157b3f5f0e624c5962f5a7a6, 8604d9e534a3e662600e288bcfd1a5acd2763d28, and 86dd995d63241039e0ad9123f9b424013c611510.
Comment 1 Josh Boyer 2016-05-24 14:49:35 UTC 
I've enabled this in today's rawhide.  It should be available tomorrow.
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