Re: [Xen-devel] 2.6.27 - SMP enabled, but only 1 CPU

["Christopher S. Aker" <caker@xxxxxxxxxxxx>]

Christopher S. Aker wrote:
> I just compiled 2.6.27 (pae) using my .config from 2.6.26.  It boots 
> fine, but only one CPU shows up, despite "vcpus = 4" and all of the SMP 
> goodness enabled.  This happens on both Xen 3.2.x and 3.3.x (64 bit 
> hypervisor).
> beefcake:2.6.27-linode14# grep SMP .config
> CONFIG_X86_SMP=y
> CONFIG_X86_32_SMP=y
> CONFIG_USE_GENERIC_SMP_HELPERS=y
> CONFIG_SMP=y
> CONFIG_X86_FIND_SMP_CONFIG=y
> # CONFIG_X86_VSMP is not set
> CONFIG_PM_SLEEP_SMP=y
>
> root@ubuntu:~# uname -a
> Linux ubuntu 2.6.27-linode14 #1 SMP Sun Oct 12 20:34:47 EDT 2008 i686 
> GNU/Linux
> root@ubuntu:~# cat /proc/cpuinfo
> processor    : 0
> ...
> (and that's it -- just one CPU)
>
> I must be missing something obvious, so I'd appreciate another set of 
> eyes on this.  My .config, boot log, and xen.conf are located here:
> http://www.theshore.net/~caker/xen/2.6.27-linode14/config.txt
> http://www.theshore.net/~caker/xen/2.6.27-linode14/bootlog.txt
> http://www.theshore.net/~caker/xen/2.6.27-linode14/xen.conf
Same with 2.6.27.4 and a defconfig + the paravirt stuff enabled.  So, 
what's the trick for getting SMP working with 2.6.27.* domUs?  Has 
anyone achieved this?
Thanks,
-Chris


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