On Fri, Sep 28, 2018 at 07:15:50AM +0000, linzhecheng wrote: > Hi, Gerd > I'm still trying to realize local live-migration with usb passthrough devices > for purpose of upgrading qemu. > I've made sure that source and target vms will not access host usb devices at > the same time. > But when I test USB flash disk copying files during live-migration stage, I > encounter a probabilistic problem: copying task may stuck for a while.
Most likely due to the unplug and re-plug emulated by qemu. cheers, Gerd
