As far as I can see from the upstream discussion this is indeed a kernel issue. Initially it was intended to be fixed by
Author: Mel Gorman <mgor...@suse.de> xen: properly account for _PAGE_NUMA during xen pte translations ... Steven Noonan forwarded a users report where they had a problem starting vsftpd on a Xen paravirtualized guest, with this in dmesg: BUG: Bad page map in process vsftpd pte:8000000493b88165 pmd:e9cc01067 ... However the patch got reverted later (which also made it back into 14.04 via stable because it caused regressions on migration. With v3.15-rc2 there was a new change to address this: commit 29c7787075c92ca8af353acd5301481e6f37082f Author: Mel Gorman <mgor...@suse.de> mm: use paravirt friendly ops for NUMA hinting ptes It looks that change (while tagged for stable) has not yet been picked up for 3.13. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to vsftpd in Ubuntu. https://bugs.launchpad.net/bugs/1313450 Title: Unable to start vsftpd on Ubuntu 14.04 (Amazon/EC2 or Xen) with default configuration To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1313450/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs