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本帖最后由 phanx 于 2015-03-16 23:23 编辑
在RHEL 6中,ZRAM没有在内核主线中,而是以独立模块存在的。
[root@localhost Desktop]# lsb_release -a
LSB Version: :base-4.0-amd64:base-4.0-noarch:core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch
Distributor ID: RedHatEnterpriseServer
Description: Red Hat Enterprise Linux Server release 6.4 (Santiago)
Release: 6.4
Codename: Santiago
[root@localhost Desktop]# modinfo zram
filename: /lib/modules/2.6.32-358.el6.x86_64/kernel/drivers/staging/zram/zram.ko
description: Compressed RAM Block Device
author: Nitin Gupta <ngupta@vflare.org>
license: Dual BSD/GPL
srcversion: AD0B60E37ED8152B15E6FBA
depends: lzo_compress,lzo_decompress
staging: Y
vermagic: 2.6.32-358.el6.x86_64 SMP mod_unload modversions
parm: num_devices:Number of zram devices (uint)
[root@localhost Desktop]#
https://access.redhat.com/solutions/443893
The zram driver: Supportability in Red Hat Enterprise Linux
问题
· Is the zram driver fully supported in Red Hat Enterprise Linux 6 ?
· Is the zram driver recommended to use in production environment ?
· Why zram module is present inside "staging" directory ?
环境
· Red Hat Enterprise Linux 7
· Red Hat Enterprise Linux 6.2
· zram
决议
· The zram driver is present inside "staging" directory but it is fully supported in Red Hat Enterprise Linux 6 and Red Hat Enterprise Linux 7 by Red Hat Global Support Service and can be used in the production environment.
·As per Greg Kroah-Hartman, the Linux "staging" tree is used to hold stand-alone drivers and filesystems that are not ready to be merged into the main portion of the Linux kernel tree at this point in time for various technical reasons. It is contained within the main Linux kernel tree so that users can get access to the drivers much easier than before, and to provide a common place for the development to happen. |
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