qemu 1.2.0 was working fine for me on NetBSD 6.0 i386. On upgrading to 1.3.0 following assertion fails: assertion "QLIST_EMPTY(&bs->tracked_requests)" failed: file "block.c", line 1220, function "bdrv_drain_all" I was booting Arch Linux as guest, when this happened. Would appreciate comments. Mayuresh