Public bug reported: Trusty linux (3.13) fails to boot on some NVMe-based cloud instance types.
[Impact] * Ubuntu trusty images can't be used on some NVMe-based cloud instance types. * Mainline commit a522905 "NVMe: Always use MSI/MSI-x interrupts" fixes the issue; application of this to 3.13 requires a set of prerequisite patches, and a minor backport. a522905 NVMe: Always use MSI/MSI-x interrupts e32efbf NVMe: make setup work for devices that don't do INTx be577fa nvme: Use pci_enable_msi_range() and pci_enable_msix_range() 42f6142 NVMe: per-cpu io queues 4f5099a NVMe: IOCTL path RCU protect queue access 5a92e70 NVMe: RCU protected access to io queues [Test Case] * Verify that a trusty-based image can boot on the affected instance type. [Regression Potential] * This change set affects all users of the NVMe driver, so regression potential is moderate to high. Additional soak testing may be warranted before merging this patch set. * The patched NVMe driver has been exercised by Dan Streetman, and given the thumbs-up. ** Affects: linux (Ubuntu) Importance: Undecided Assignee: Kamal Mostafa (kamalmostafa) Status: In Progress ** Affects: linux (Ubuntu Trusty) Importance: Undecided Assignee: Kamal Mostafa (kamalmostafa) Status: In Progress ** Also affects: linux (Ubuntu Trusty) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Trusty) Assignee: (unassigned) => Kamal Mostafa (kamalmostafa) ** Changed in: linux (Ubuntu Trusty) Status: New => In Progress ** Changed in: linux (Ubuntu) Status: New => In Progress -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1720867 Title: Trusty NVMe boot fails on some systems To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1720867/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs