------- Comment From geral...@de.ibm.com 2020-05-26 12:40 EDT------- (In reply to comment #8) > Is there a patch/commit out that disabled these messages/migration-warning?
No, and I do not see why this was mirrored at all. This is no bug, this is absolutely normal behaviour since like forever. These warnings will always show, for example, when trying to set a memory block offline which is not removable, i.e. which contains unmovable pages. I can only assume that those might now show more often with current kernels, as there has been some common code rework by David Hildenbrand, which basically eliminates the previously present "removable yes/no" heuristic, because it was very confusing and also racy and thus unreliable. IIRC, now all memory blocks are reported as removable "yes", because this cannot really be reported reliably at all. So, now tools like chmem might try to set permanently un-removable blocks offline more often, because they check the (unreliable) removable attribute. Before the upstream common code change, such tools could have missed removable blocks, but triggered less warnings. Now they will not miss any, but also try offlining blocks that really are permanently un- removable, thus triggering more warnings. But the warning itself is not new or a bug at all. So, since all works as designed, closing this bugzilla. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1873762 Title: [Ubuntu 20.04] memory hotplug triggers page migration warnings To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1873762/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
