This appears to be the regression. Rebuilding the kernel w/ CONFIG_ARM64_ERRATUM_843419=n works around it.
commit bf0cdf4bfb785129798bc42d6ee8e2558f0934da Author: Will Deacon <will.dea...@arm.com> Date: Tue Mar 17 12:15:02 2015 +0000 arm64: errata: add module build workaround for erratum #843419 commit df057cc7b4fa59e9b55f07ffdb6c62bf02e99a00 upstream. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1502946 Title: kernel crash on m400 arm64 server cartridge To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1502946/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs