Public bug reported: As is the case for bionic, linux-kvm requires UNWINDER_FRAME_POINTER vs UNWINDER_ORC:
commit 028eb9123f783b3a38936b1a02a235c4680f873d Author: Seth Forshee <[email protected]> Date: Sat Dec 9 22:08:25 2017 -0600 UBUNTU: [Config] CONFIG_UNWINDER_FRAME_POINTER=y for amd64 During the rebase to 4.15 UNWINDER_ORC was chosen as the stack unwinder as it promises a 5-10% performance improvement over using UNWINDER_FRAME_POINTER. However it turns out to have a couple of downsides. It adds a new requierment for building dkms modules, and it does not produce the reliable stack traces required for livepatch. Switch back to UNWINDER_FRAME_POINTER. Signed-off-by: Seth Forshee <[email protected]> ** Affects: linux-kvm (Ubuntu) Importance: Undecided Assignee: Kamal Mostafa (kamalmostafa) Status: In Progress ** Affects: linux-kvm (Ubuntu Bionic) Importance: Undecided Assignee: Kamal Mostafa (kamalmostafa) Status: In Progress ** Also affects: linux-kvm (Ubuntu Bionic) Importance: Undecided Assignee: Kamal Mostafa (kamalmostafa) Status: In Progress -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1763107 Title: linux-kvm 4.15 needs UNWINDER_FRAME_POINTER To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-kvm/+bug/1763107/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
