Re: HELP: Number of CPU cores is not right

2011-06-19 Thread Stefan Monnier
>> I hardly call "module size blows up" to be no rationale for limiting the >> number of CPUs. > Well, if now is set to 512, the problem was not that big, I mean... > solvable. IIRC the Linux kernel handling of CONFIG_NR_CPUS has changed: it used to allocate potentially large static data of size

Re: HELP: Number of CPU cores is not right

2011-06-19 Thread Camaleón
On Sat, 18 Jun 2011 21:57:28 -0500, Ron Johnson wrote: > On 06/18/2011 05:21 AM, Camaleón wrote: >> 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 :-) >> >> > I hardly call "m

Re: HELP: Number of CPU cores is not right

2011-06-18 Thread Ron Johnson
On 06/18/2011 05:21 AM, Camaleón wrote: 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

Re: HELP: Number of CPU cores is not right

2011-06-18 Thread Camaleón
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

Re: HELP: Number of CPU cores is not right

2011-06-17 Thread Andrew Reid
> Hi all, > > Now I have one more problem is that the OS cannot recognize the right > number of CPU Cores. The OS is Debian_5.0.8_amd64. > > 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. > > I tried to update

Re: HELP: Number of CPU cores is not right

2011-06-17 Thread Lisi
On Friday 17 June 2011 19:22:44 Junjie QIAN wrote: > I tried to update the version of the kernel, but failed. To update it you will need to get the kernel from lenny backports. http://linux.koolsolutions.com/2009/02/20/debian-lenny-backports/ I remain puzzled, and would be grateful if someone c

Re: HELP: Number of CPU cores is not right

2011-06-17 Thread Armin Kneip
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi, > 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.