On Tue, Mar 10, 2020 at 03:58:06PM +0100, Christian Ehrhardt wrote: > On upgrades the old .so files usually are replaced. But on the other > hand since a qemu process represents a guest instance it is usually kept > around. > > That makes late addition of dynamic features e.g. 'hot-attach of a ceph > disk' fail by trying to load a new version of e.f. block-rbd.so into an > old still running qemu binary. > > This adds a fallback to also load modules from a versioned directory in the > temporary /var/run path. That way qemu is providing a way for packaging > to store modules of an upgraded qemu package as needed until the next reboot. > > An example how that can then be used in packaging can be seen in: > https://git.launchpad.net/~paelzer/ubuntu/+source/qemu/log/?h=bug-1847361-miss-old-so-on-upgrade-UBUNTU > > Fixes: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1847361 > Signed-off-by: Christian Ehrhardt <christian.ehrha...@canonical.com> > --- > configure | 15 +++++++++++++++ > util/module.c | 14 ++++++++++++++ > 2 files changed, 29 insertions(+)
Reviewed-by: Daniel P. Berrangé <berra...@redhat.com> Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|
