upgraded the firmware on dradis to P9DSU20190404_IBM_prod_sign.pnor and tested with bionic and disco and the issue does not reproduce. Marking this bug as fix-committed, and if you are able to reproduce this again please re-open this bug.
** Changed in: ubuntu-power-systems Status: Incomplete => Fix Committed ** Changed in: linux (Ubuntu) Status: Confirmed => Fix Committed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1827343 Title: CPU hard lockup when turning CPU back online on Bionic P9 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1827343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs