Would have been good to have the qemu iotest before we merged 4afeffc8572f40d8844b946a30c00b10da4442b1 blockjob: do not allow coroutine double entry or entry-after-completion and friends.
On 11/22/2017 [...] > -Image committed. > +qemu-img: /tmp/qemu-test/src/block/block-backend.c:2088: > blk_root_drained_end: Assertion `blk->quiesce_counter' failed. > +./common.rc: line 61: 13620 Aborted (core dumped) ( exec > "$QEMU_IMG_PROG" $QEMU_IMG_OPTIONS "$@" ) > Reading from the backing file [...]
