something i just noticed, rbtree.o is built in the kernel directory: CC ../../lib/rbtree.o that's Not Nice (tm) (we should never modify the kernel's objects) and it can also cause problems like this when having a 32-bit tree built already: /usr/bin/ld: i386 architecture of input file `../../lib/rbtree.o' is incompatible with i386:x86-64 output collect2: ld returned 1 exit status Is there a reason why kvm does not do what perf does and build its own rbtree.o? Thanks, Ingo -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html