Xib and keyed decoding

[forumer]

Hi,

I am still trying to understand how things work during xib decoding and 
I tried to put some breakpoints
inside NSBox initWithCoder but it freezed the virtual machine
Before it crashes I was surprised to see that the debugger was passing 
by the other if ([aDecoder allowsKeyedCoding])
while I thought when loading a xib it would use a keyed coding.
Was it just an hallucination and is there any case when loading a xib 
where we don't enter inside allowsKeyedCoding ?
If I install a linux distribution on a real machine instead of a vm, 
will I avoid the freeze during debugging ?

Thanks