Il 13/04/2012 09:51, Zhi Yong Wu ha scritto: > Sorry, i hadn't check the code. thanks for pointing out this. In the > past, i tested this patch, and found it will assert about > bs->tracked_requests. Do you think that only qemu_aio_wait can make > sure that bs->tracked_requests is empty here?
FWIW, live snapshot during guest boot (block_set_io_throttle ide0-hd0 0 500000 500000 0 500000 500000) died immediately without the patches. With the patch I could do 20 snapshots before I stopped. Paolo
