Re: 2.6.27rc1 cannot boot more than 8CPUs

Jeff Chua
2008-08-06T03:52:29Z

On Wed, Aug 6, 2008 at 11:31 AM, Max Krasnyansky <maxk@qualcomm.com> wrote:
> You could try booting CONFIG_NR_CPUS=16 with maxcpus=8 (kernel command line option).
> If it boots you can then try bringing the rest of the cpus online manually

Ok, booted with CONFIG_NR_CPUS=16 with maxcpus=8, but can't find the
rest of the CPUs.

I can only find cpu0 to cpu7 ...

drwxr-xr-x 4 root root 0 Aug 6 19:38 cpu0
drwxr-xr-x 4 root root 0 Aug 6 19:38 cpu1
drwxr-xr-x 4 root root 0 Aug 6 19:38 cpu2
drwxr-xr-x 4 root root 0 Aug 6 19:38 cpu3
drwxr-xr-x 4 root root 0 Aug 6 19:38 cpu4
drwxr-xr-x 4 root root 0 Aug 6 19:38 cpu5
drwxr-xr-x 4 root root 0 Aug 6 19:38 cpu6
drwxr-xr-x 4 root root 0 Aug 6 19:38 cpu7
-r--r--r-- 1 root root 4096 Aug 6 19:41 online
-r--r--r-- 1 root root 4096 Aug 6 19:39 possible
-r--r--r-- 1 root root 4096 Aug 6 19:38 present
-rw-r--r-- 1 root root 4096 Aug 6 19:38 sched_mc_power_savings

# cat online
0-7
# cat possible
0-23
# cat present
0-7

Thanks,
Jeff.