I see multiple instances of: arch/powerpc/kernel/exceptions-64s.S:839: Error: attempt to move .org backwards in v4.4.y.queue (v4.4.179-143-gc4db218e9451). This is due to commit 9b2d4e06d7f1 ("powerpc/64s: Add support for a store forwarding barrier at kernel entry/exit"), which is part of a large patch series and can not easily be reverted. Guess I'll stop doing ppc:allmodconfig builds in v4.4.y ? Thanks, Guenter