Public bug reported: SRU Justification
[Impact] At present, if a virt instance is hibernated and restarted in a different environment, the instance will crash. We have seen situations where customers have to enable support cases to recover an instance. The proposed patch is supposed to enable the kernel to detect the change and reboot the instance instead of crashing. In the ACPI specification; there is a 'hardware signature' field in the ACPI tables, and the OS can reboot cleanly if/when that signature changes, instead of attempting the resume and crashing. [Fix] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=74d95555 https://lore.kernel.org/lkml/9099d8903e9b2b16daec712acc9aa533fe84d102.ca...@infradead.org/T/#u [Test Case] Hibernate an AWS instance, resume on a different platform. [Where things could go wrong] Resume currently crashes when a hibernated instance is migrated to a new machine. It can't get much worse, unless the initial hibernate fails. [Other Info] SF: #00330794 ** Affects: linux-aws (Ubuntu) Importance: Medium Assignee: Tim Gardner (timg-tpi) Status: In Progress ** Affects: linux-aws (Ubuntu Focal) Importance: Medium Assignee: Tim Gardner (timg-tpi) Status: In Progress ** Affects: linux-aws (Ubuntu Impish) Importance: Medium Assignee: Tim Gardner (timg-tpi) Status: In Progress ** Affects: linux-aws (Ubuntu Jammy) Importance: Medium Assignee: Tim Gardner (timg-tpi) Status: In Progress ** Also affects: linux-aws (Ubuntu Impish) Importance: Undecided Status: New ** Also affects: linux-aws (Ubuntu Jammy) Importance: Undecided Status: New ** Also affects: linux-aws (Ubuntu Focal) Importance: Undecided Status: New ** Changed in: linux-aws (Ubuntu Focal) Importance: Undecided => Medium ** Changed in: linux-aws (Ubuntu Focal) Status: New => In Progress ** Changed in: linux-aws (Ubuntu Focal) Assignee: (unassigned) => Tim Gardner (timg-tpi) ** Changed in: linux-aws (Ubuntu Impish) Importance: Undecided => Medium ** Changed in: linux-aws (Ubuntu Impish) Status: New => In Progress ** Changed in: linux-aws (Ubuntu Impish) Assignee: (unassigned) => Tim Gardner (timg-tpi) ** Changed in: linux-aws (Ubuntu Jammy) Importance: Undecided => Medium ** Changed in: linux-aws (Ubuntu Jammy) Status: New => In Progress ** Changed in: linux-aws (Ubuntu Jammy) Assignee: (unassigned) => Tim Gardner (timg-tpi) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-aws in Ubuntu. https://bugs.launchpad.net/bugs/1965002 Title: AWS: Hibernate resume crashes when platform changes Status in linux-aws package in Ubuntu: In Progress Status in linux-aws source package in Focal: In Progress Status in linux-aws source package in Impish: In Progress Status in linux-aws source package in Jammy: In Progress Bug description: SRU Justification [Impact] At present, if a virt instance is hibernated and restarted in a different environment, the instance will crash. We have seen situations where customers have to enable support cases to recover an instance. The proposed patch is supposed to enable the kernel to detect the change and reboot the instance instead of crashing. In the ACPI specification; there is a 'hardware signature' field in the ACPI tables, and the OS can reboot cleanly if/when that signature changes, instead of attempting the resume and crashing. [Fix] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=74d95555 https://lore.kernel.org/lkml/9099d8903e9b2b16daec712acc9aa533fe84d102.ca...@infradead.org/T/#u [Test Case] Hibernate an AWS instance, resume on a different platform. [Where things could go wrong] Resume currently crashes when a hibernated instance is migrated to a new machine. It can't get much worse, unless the initial hibernate fails. [Other Info] SF: #00330794 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-aws/+bug/1965002/+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
