Re: [Qemu-devel] [PATCH] aio-posix: Fix return value of aio_poll()

[Dietmar Maurer]

> > 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.