https://lists.ubuntu.com/archives/kernel-team/2022-March/128784.html
** Changed in: linux-aws (Ubuntu Jammy)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1965002
Title:
AWS: Hibernate resume crashes when platform changes
Status in linux-aws package in Ubuntu:
Fix Committed
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:
Fix Committed
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. Positive
test results from Amazon engineers.
[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
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