This is caused by stress-ng holding those CPUs. Should kdump work in this case, we need IBM's help in fixing it.
Meanwhile, can you try bionic, and see if the 4.15 kernel from bionic fixes it? Cascardo. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1680349 Title: Kdump fails to capture dump on Firestone NV when machine crashes while running stress-ng. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1680349/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs