On 2011-10-18 16:08, Avi Kivity wrote: > On 10/18/2011 04:05 PM, Jan Kiszka wrote: >> On 2011-10-18 16:00, Avi Kivity wrote: >>> On 09/30/2011 01:31 PM, Jan Kiszka wrote: >>>> This is conceptually cleaner and will allow us to drop the nographic >>>> timer. Moreover, it will be mandatory to fully exploit future per-device >>>> coalesced MMIO rings. >>>> >>> >>> Appears to break winxp installation - the guest enters an infinite >>> bitblt loop. Trying to find out why. >> >> Hmm, maybe there are side effects in certain modes that actually >> disallow coalescing. >> > > That's true for sure, but flushing the buffer should never be wrong.
Err, you mean we are not flushing "too often"? I was under the impression winxp is missing our periodic flushes. Do things work again when you do not flush at all? Jan -- Siemens AG, Corporate Technology, CT T DE IT 1 Corporate Competence Center Embedded Linux