On 04/08/2020 16:59, Bastian Blank wrote:
I'll bump the compiler version to GCC 10 on the master branch soonish, i.e. for 5.8 and later kernel versions. If there are any supported architectures where GCC 10 is known to cause regressions, this can be reverted *temporarily* for those architectures, but needs to be fixed for the Bullseye release.
When I build an arm64 kernel with upstream v5.8 (make bindeb-pkg) on sid, the built kernel can't load any modules -- lsmod output is empty, modprobe-ing any module fails with "Exec format error". I think it might be related to GCC 10, because I had also tried building the Debian package when you just updated it to v5.8 (eebcb7ad) and got a fully working kernel then (but the overall build failed due to udebs which you already fixed).
I also ran into a GCC issue other people already reported [1][2] while building the current version of the master branch (26a6ecc2) for arm64 (I wanted to check if it could load modules correctly, I will send an update if I can manage to test that).
[1] https://lkml.org/lkml/2020/7/27/575 [2] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96377
