Re: HELP: Number of CPU cores is not right
- From: Camaleón <noelamac@xxxxxxxxx>
- Date: Sat, 18 Jun 2011 10:21:22 +0000 (UTC)
On Fri, 17 Jun 2011 20:49:41 +0200, Armin Kneip wrote:
The computer OS running has 48-core CPU, but the OS now only can
recognize 32-core of CPU.
The kernel version is 2.6.26-2-amd64.
The current Debian kernel supports only 32 cpu's. Set CONFIG_NR_CPUS to
48 or higher and recompile your kernel.
True! :-o
sm01@stt008:~$ grep -i nr_cpus /boot/config-2.6.26-2-amd64
CONFIG_NR_CPUS=32
Where is that limit coming from? It must be a rationale for doing it so.
(searching...)
Ah, found this thread:
Debian stock kernel config -- CONFIG_NR_CPUS=32?
http://lists.debian.org/debian-user/2010/10/msg01391.html
Oops, no rationale then :-)
Greetings,
--
Camaleón
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