Il 13/04/2012 11:52, Zhi Yong Wu ha scritto: >> > 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. > Why do you not use qemu_aio_flush before loop start? it can fix the > issue said by me.
I won't modify a patch without understanding what's going on. From my understanding (which may well be wrong), replacing qemu_aio_wait() with qemu_aio_flush() should have no effect in this patch. In other words, you didn't provide enough justification to make me understand why there is a problem and why the change fixes it. Did you see a problem with all the patches, or with this one in isolation (which actually would not compile alone, and this should be a red flag alone)? How did you reproduce it? Paolo
