Subject: Re: need help with DMA and UBC synchronization
To: Matthias Drochner <>
From: Chuck Silvers <>
List: tech-kern
Date: 05/25/2005 07:06:21
On Wed, May 25, 2005 at 02:03:54PM +0200, Matthias Drochner wrote:
> What is the right way to deal with this? I would assume
> that the uvm_vslock(PROT_WRITE) marks the pages as dirty,
> but this appearently doesn't happen.

er, nevermind my previous mail, I obviously shouldn't be
trying to think first thing in the morning.

uvm_vslock(PROT_WRITE) is supposed to mark the pages dirty,
is it consistently failing to do so for you or only occasionally?