Dan, I have run into this issue 4 times over the past few months, on two separate servers running 3.13. I captured the kernel trace output of each occurrence and can post them here if it would help. I have attached the latest one, but there are 3 others I can provide as well.
Environment: AWS EC2 Virtual Instance: r3.large Ubuntu lts-trusty 3.13.0-53-generic (and) 3.13.0-45-generic. ** Attachment added: "ServerB-ubuntu-lts-trusty-3.13.0-53.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1497428/+attachment/4488905/+files/ServerB-ubuntu-lts-trusty-3.13.0-53.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1497428 Title: kernel BUG at /build/buildd/linux-3.13.0/mm/page_alloc.c:968 Status in linux package in Ubuntu: In Progress Status in linux source package in Trusty: In Progress Bug description: The kernel triggers a BUG when it finds it is in move_freepages() but the start and end pfns for the move are in different zones. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1497428/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp