I tried this again yesterday evening, with an up-to-date xenial arm64 image, and lo and behold: Both setting it up and running two parallel loops with calling adt-run over night, and they went through ~ 500 iterations without a hitch.
So I suppose this was fixed by some newer kernel, the new glibc, some changed Scalingstack configuration, or the tooth fairy :-) Whatever it was, I close this now as this has become a bit unwieldy. I'll report a new bug if this happens again. ** Changed in: linux (Ubuntu) Status: Confirmed => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1531768 Title: [arm64] locks up a few minutes after booting To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1531768/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs