From owner-cvs-src@FreeBSD.ORG Tue Feb 8 10:39:13 2005 Return-Path: Delivered-To: cvs-src@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 833D816A4CE; Tue, 8 Feb 2005 10:39:13 +0000 (GMT) Received: from cyrus.watson.org (cyrus.watson.org [204.156.12.53]) by mx1.FreeBSD.org (Postfix) with ESMTP id 49A5543D48; Tue, 8 Feb 2005 10:39:13 +0000 (GMT) (envelope-from robert@fledge.watson.org) Received: from fledge.watson.org (fledge.watson.org [204.156.12.50]) by cyrus.watson.org (Postfix) with SMTP id 8178746B2E; Tue, 8 Feb 2005 05:39:12 -0500 (EST) Date: Tue, 8 Feb 2005 10:38:12 +0000 (GMT) From: Robert Watson X-Sender: robert@fledge.watson.org To: Scott Long In-Reply-To: <200502080343.j183h2Nt041950@repoman.freebsd.org> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII cc: cvs-src@FreeBSD.org cc: src-committers@FreeBSD.org cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/dev/twe twe.c twe_freebsd.c X-BeenThere: cvs-src@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: CVS commit messages for the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 08 Feb 2005 10:39:13 -0000 On Tue, 8 Feb 2005, Scott Long wrote: > Fix crashdumps on twe. The twe_immediate_request() path was not only > copying data to a temporary buffer before the I/O, but also copying that > temporary buffer back to the original data location after the I/O. When > you're dumping kernel heap and stack and protected pages, this is very > very bad. > > A belated thanks to Robert Watson for donating hardware for this (and future) > work. > > MFC after: 3 days Wonderful, thanks! I and the rest of the 3ware-consuming world will appreciate this much :-). Robert N M Watson