Originally Posted by ~sHyLoCk~
Fixed after patching.
Apparently they renamed CONFIG_PERF_COUNTERS to CONFIG_PERF_EVENTS in 2.6.32. Hence vbox couldn't detect it.
They didn't actually rename it ... there are two options:
mingdao@silas64:~$ zgrep 'CONFIG_PERF' /proc/config.gz
And you see that apparently I didn't hit the bug in VirutalBox
because I have them both built in. As it says in the kernel:
Kernel performance counters (old config option) (PERF_COUNTERS)
This config has been obsoleted by the PERF_EVENTS
config option - please see that one for details.
It has no effect on the kernel whether you enable
it or not, it is a compatibility placeholder.
This is why I read the HELP on every NEW option when I build using
new kernel source ... because people coding apps such as VirtualBox
don't always check new kernel options and give us bugs.