Re: 2.6.27rc1 cannot boot more than 8CPUs

Max Krasnyansky
2008-08-06T04:49:55Z

Jeff Chua wrote:
> On Wed, Aug 6, 2008 at 11:54 AM, Max Krasnyansky <maxk@qualcomm.com> wrote:
>
>> Are you running 32-bit kernel ?
>
> Yes. But, does it matter?

It used to. 64-bit kernel used to handle maxcpus option as documented in the
Documentation/cpu-hotplug.txt and 32-bit one was broken.
I just looked at the latest code and realized that both are now broken. They
ignore cpu id > maxcpus instead of not-booting them.

I'll send a patch that fixes that tomorrow.

Max