Public bug reported:
Upgrading qemu binaries causes the on-disk versions to change, but the
in-memory running instances still attempt to dynamically load a library
which matches its same version. This can cause running instances to fail
actions like hotplugging devices. This can be alleviated by migrating
the instance to a new host or restarting the instance, however in cloud
type environments there may be instances that cannot be migrated (sriov,
etc) or the cloud operator does not have permission to reboot.
This may be resolvable for many situations by changing the packaging to
keep older versions of qemu libraries around on disk (similar to how the
kernel package keeps older kernel versions around).
** Affects: qemu (Ubuntu)
Importance: Undecided
Status: New
** Tags: bootstack sts
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https://bugs.launchpad.net/bugs/1847361
Title:
Upgrade of qemu binaries causes running instances not able to
dynamically load modules
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