Re: [Qemu-devel] [PATCH] Flush pending AIO on reboot and shutdown.

[Avi Kivity]

Gleb Natapov wrote:
> but what bother me is that we
> consciously drop user data that we can easily save. Why? Real HW tries
> hard to save every bit of user data and we just decided to drop it. The
> difference between cancel or complete a request may be corrupted or not
> corrupted file system after a crash.
>
>   

If a guest didn't wait for an I/O to complete, it shouldn't expect it to 
be on disk.

Of course, we can have the IDE layer wait instead of cancelling, which 
will get the request onto the disk.

--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.