I did, there are similar messages, only in this case along with call traces. Attaching a screenshot.
** Attachment added: "Console_screenshot_vivid_amd64" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1437386/+attachment/4368598/+files/IMG_20150407_175348.jpg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1437386 Title: Unable to boot LenovoThinkpad W541 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1437386/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs