The following reply was made to PR kern/15364; it has been noted by GNATS.

From: YAMAMOTO Takashi <yamt@mwd.biglobe.ne.jp>
To: chuq@chuq.com
Cc: gnats-bugs@NetBSD.org
Subject: Re: kern/15364
Date: Thu, 08 Sep 2005 05:24:51 +0900

 > the patch that you sent earlier looks good, I'd just change the
 > "multiple write resid" check into a KASSERT instead of UVMHIST_LOG.
 > same for the "no page" panic.
 
 "multiple write" here is normal if the page is re-dirtied.
 it's the reason why we need a bitmap rather than a byte-count.
 
 YAMAMOTO Takashi