I have not reproduced this bug as I don't have and environment to do so. Maybe Jan Henke, the original bug reporter, can confirm your question in comment #42?
The Wily and Vivid test kernels I built only have the following commit cherry-picked per comment #34: commit 4e4bd36f97b1492f19b3329ac74ed313da13de34 Author: Vitaly Kuznetsov <vkuzn...@redhat.com> Date: Fri May 29 11:18:02 2015 -0700 Looking at the patches you mentioned in comment #42, are the following two commits in mainline also needed to fix this bug? commit 7ace99170789bc53cbb7e9e352d7a3851208fbcf Author: Mel Gorman <mgor...@suse.de> Date: Thu Aug 6 15:46:13 2015 -0700 mm, meminit: allow early_pfn_to_nid to be used during runtime commit e298ff75f133f2524bb6a9a305b17c5f6ff1a6b2 Author: Mel Gorman <mgor...@techsingularity.net> Date: Thu Aug 6 15:46:51 2015 -0700 mm: initialize hotplugged pages as reserved These last two commits were in mainline as of v4.2-rc6. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1294283 Title: Memory balloning in Hyper-V generation 2 does not work To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1294283/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs