Re: [Qemu-devel] [PATCH 0/2] ide: convert pio code path to asynchronous I/O

[Chris Webb]

Stefan Hajnoczi <address@hidden> writes:

> Chris and Richard: Please test this to confirm that it fixes the hang you
> reported.

We've been testing this (v1 against qemu-kvm 1.0) today, and it's looking
very good. Thanks!

The lock-ups during boot no longer happen, and if you severely throttle
(1MB/s, 100 req/s) a guest in the middle of a big dd, there are lots of
nasty kernel messages as it falls back to pio mode, but the guest doesn't
lock up and qemu remains responsive.

Best wishes,

Chris.