On Thu, 13 Sep 2018 at 13:32, Ben Hutchings <ben@xxxxxxxxxxxxxxx> wrote: > > On Tue, 2018-09-11 at 15:58 +0100, Rui Salvaterra wrote: > > Greetings! I'm having trouble building the kernel on my ppc64 machine > > (Power Mac G5) running Debian Sid. The make bindeb-pkg target is failing > > ever since 4.19-rc1. Is this a known issue? If not, let me know if you need > > anything else in order to help debug this. Thanks in advance! > > It sounds like you don't actually have a ppc64 installation, but a > powerpc installation with a 64-bit kernel. In that case you will now > need to add ppc64 as a secondary architecture by running: > > dpkg --add-architecture ppc64 > > If that doesn't help, please send the error messages you're getting. > > Ben. > > -- > Ben Hutchings > Computers are not intelligent. They only think they are. > Hi, Ben! Thanks for the hint, I had added the ppc64 architecture already, but no luck. I spent yesterday bisecting between v4.18 and v4.19-rc1, but the result pointed to an obviously wrong commit. Serendipitously (by building a v4.19-rc3 allnoconfig), I discovered 32-bit builds fine, but 64-bit big endian doesn't. I started digging in the git history for some clues. I tried reverting this commit[1], which seemed suspicious, but the build still fails (the initial dpkg-buildpackage warnings are gone, though). Let me know what else can I do to help. Thanks, Rui [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=50d511ba6246c46654857b8ef64aefe76a87e455
