> > If I reset/suspend/resume/ the VM during a backup job run I get: > > > > block.c:1221: bdrv_drain_all: Assertion `((&bs->tracked_requests)->lh_first > == ((void *)0))' failed. > > Aborted > > > > I am not 100% sure, but I think a simple qemu_aio_wait() is not enough > > to ensure that a copy-on-write action has finished. > > Are you using timers in any way?
Yes, I call co_sleep_ns(rt_clock, delay) to limit rate to output stream.
