On 2018-10-28 4:05 AM, "Paul Eggert" <eggert@cs.ucla.edu> wrote:
>
> I built and ran Emacs master on two CentOS 7 ppc64le platforms with no trouble. So the problem is not GNU/Linux ppc64le per se; it's something more specific to your platform.

OK, thanks for checking. I'm running the Linux-libre 4.18 kernel built from source with powernv_defconfig -- I should have mentioned that in the initial report, sorry.  I'll try the debugging steps you've suggested when I get back to my system, and narrow down what the relevant options are. Everything else on my system is stock Debian stretch packages.

Thomas