Weblog entry #10 for sebastian
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#10
Memory Limit on Debian with 2.4 kernel
Posted by sebastian on Mon 30 Jan 2006 at 15:11
I was running low on memory in a server. There was 1 gig in the server with Debian GNU/Linux with a 2.4 kernel.
So i removed the old memory and put 4 new gig back in the system.
After the reboot... there was stil 1 gig memory that i could see in Debian. Is there a memory limit in this kernel?
Details:
Debian GNU/Linux, sarge, 2.4.27-1-386
So i removed the old memory and put 4 new gig back in the system.
After the reboot... there was stil 1 gig memory that i could see in Debian. Is there a memory limit in this kernel?
Details:
Debian GNU/Linux, sarge, 2.4.27-1-386
Comments on this Entry
Posted by Anonymous (163.1.xx.xx) on Mon 30 Jan 2006 at 16:11
You need to compile the kernel with HIMEM support if you have more than (IIRC() 768MB of RAM that you want to use.
[ Parent | Reply to this comment ]
Posted by Anonymous (80.109.xx.xx) on Mon 30 Jan 2006 at 16:13
I don't know for sure about the 2.4 kernel, but the 2.6 kernel has an option:
CONFIG_HIGHMEM=y
If it exists in 2.4, too, it might not be turned on by default in the Debian kernel.
HTH, gregor
CONFIG_HIGHMEM=y
If it exists in 2.4, too, it might not be turned on by default in the Debian kernel.
HTH, gregor
[ Parent | Reply to this comment ]
This is an excerpt from /boot/config-2.4.27-2-386
CONFIG_NOHIGHMEM=y
# CONFIG_HIGHMEM4G is not set
# CONFIG_HIGHMEM64G is not set
# CONFIG_HIGHMEM is not set
HTH!
CONFIG_NOHIGHMEM=y
# CONFIG_HIGHMEM4G is not set
# CONFIG_HIGHMEM64G is not set
# CONFIG_HIGHMEM is not set
HTH!
[ Parent | Reply to this comment ]
Posted by Anonymous (203.91.xx.xx) on Mon 28 Jul 2008 at 08:01
I have tried with setting CONFIG_NOHIGHMEM=n
But it didn't help
But it didn't help
[ Parent | Reply to this comment ]