On 6.1.2010 23:30, John Kacur wrote: > On Wed, Jan 6, 2010 at 9:45 PM, Michal Marek <mmarek@xxxxxxx> wrote: > Michal: The length of time that a bug exists in a piece of code is no > argument for > it's correctness! >From your original post I though it fails reliably for you. If it's a race, then you're right, the time it was introduced is irrelevant :-). > I tried to debug this using > make -d V=1 O=/bld/2.6.33-rc3 > and discovered that the bug did not always occur, but did sometimes. > This leads me to think that it is timing sensitive, and indeed the > problem shows up > more easily on a machine with multiple processors. > > Is it possible that the step with mkdir -p can sometimes occur in a > Makefile parallel process > before the cd KBUILD_OUTPUT occurs? That would explain why it doesn't > reliably reproduce. OK, I still don't see how it fails, but adding $(objtree) there is a valid change and if it fixes your problem, let's apply it. Michal -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
