I've added Haw Loeung to the bug - it looks like the entire Canonical ARM build farm will be affected by this bug as soon as they get upgraded to either Bionic, or Xenial w/ a HWE.
Kernel version: Linux bos01-arm64-050 4.4.0-101-generic #124-Ubuntu SMP Fri Nov 10 18:30:44 UTC 2017 aarch64 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1545542 Title: Enable arm64 emulation of removed ARMv7 instructions Status in linux package in Ubuntu: Confirmed Status in linux source package in Wily: Fix Released Status in linux source package in Xenial: Fix Released Bug description: Linux now supports emulation of three deprecated ARMv7 features that were removed from ARMv8: SWP(B), CP15ISB/DSB/DMB, and SETEND. At least CP15DMB is used by some armhf archive binaries (notably pandoc), so we need emulation enabled on the kernels that scalingstack uses. I haven't checked which version added which, but they appeared some time between 3.13 and 4.2, and I only care about 4.2 onwards. So please enable ARMV8_DEPRECATED, SWP_EMULATION, CP15_BARRIER_EMULATION and SETEND_EMULATION in arm64 kernels for wily onwards. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1545542/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
