89 messages in org.kernel.vger.linux-kernelRe: [PATCH ] VMSPLIT config options ...
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Subject:Re: [PATCH ] VMSPLIT config options (with default config fixed)Actions...
From:Ulrich Mueller (ul@kph.uni-mainz.de)
Date:Feb 2, 2006 3:03:37 am
List:org.kernel.vger.linux-kernel

On Wed, 01 Feb 2006, Herbert Poetzl wrote:

glad to see that the linux kernel is now ready for the 'idea' I submitted a patch[1] for, more than a year ago -- which unfortunately went unnoticed back then ...

[1] http://lkml.org/lkml/2004/10/9/126

Hm, I wonder if we could have a more fine-grained choice of the boundary? There are also systems around with e.g. 1.25G or 1.5G of main memory.

The following patch is against 2.6.16-rc1-mm4 and allows for steps of 256M between 1G and 3G.

Cheers Uli

Signed-off-by: Ulrich Mueller <ul@kph.uni-mainz.de>

diff -Nur linux-2.6.16-rc1-mm4.orig/arch/i386/Kconfig
linux-2.6.16-rc1-mm4/arch/i386/Kconfig --- linux-2.6.16-rc1-mm4.orig/arch/i386/Kconfig 2006-01-31 16:43:11.000000000
+0100 +++ linux-2.6.16-rc1-mm4/arch/i386/Kconfig 2006-01-31 17:16:44.000000000 +0100 @@ -470,18 +470,33 @@

config VMSPLIT_3G bool "3G/1G user/kernel split" - config VMSPLIT_3G_OPT - bool "3G/1G user/kernel split (for full 1G low memory)" + config VMSPLIT_2G75 + bool "2.75G/1.25G user/kernel split (for full 1G low memory)" + config VMSPLIT_2G5 + bool "2.5G/1.5G user/kernel split" + config VMSPLIT_2G25 + bool "2.25G/1.75G user/kernel split" config VMSPLIT_2G bool "2G/2G user/kernel split" + config VMSPLIT_1G75 + bool "1.75G/2.25G user/kernel split (for full 2G low memory)" + config VMSPLIT_1G5 + bool "1.5G/2.5G user/kernel split" + config VMSPLIT_1G25 + bool "1.25G/2/75G user/kernel split" config VMSPLIT_1G bool "1G/3G user/kernel split" endchoice

config PAGE_OFFSET hex - default 0xB0000000 if VMSPLIT_3G_OPT - default 0x78000000 if VMSPLIT_2G + default 0xB0000000 if VMSPLIT_2G75 + default 0xA0000000 if VMSPLIT_2G5 + default 0x90000000 if VMSPLIT_2G25 + default 0x80000000 if VMSPLIT_2G + default 0x70000000 if VMSPLIT_1G75 + default 0x60000000 if VMSPLIT_1G5 + default 0x50000000 if VMSPLIT_1G25 default 0x40000000 if VMSPLIT_1G default 0xC0000000

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