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

[Chris Webb]

Stefan Hajnoczi <address@hidden> writes:

> Thanks for trying it out.
> 
> Regarding the guest kernel errors, they may be timeouts.  The guest
> may consider the IDE controller buggy/dead due to how long requests
> take to complete under severe throttling.  There's not much that can
> be done about that, I think.  If you think the guest errors are due to
> something else though, please post the error messages.

I'm sure you're right that they're standard timeouts. We see exactly the
same behaviour when a guest is on a very heavily contended disk with slow
access because of that.

Best wishes,

Chris.