On Wed, Dec 27, 2017 at 10:52:00AM +0100, Sven Joachim wrote:

In 4.14.9, CONFIG_UNWINDER_ORC=y has been made the default on x86_64. Unfortunately, this option has turned out to be broken when building the kernel with a 32-bit userland. It has been fixed in 4.15-rc3 by commit 14c47b54b0d9 ("objtool: Fix 64-bit build on 32-bit host"). Could you please pick up that commit in the 4.14 series?

Will do, it's part of a patch series I'm testing right now...

thanks,

greg k-h