From owner-freebsd-current Mon Oct 12 10:10:10 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id KAA24953 for freebsd-current-outgoing; Mon, 12 Oct 1998 10:10:10 -0700 (PDT) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from panzer.plutotech.com (panzer.plutotech.com [206.168.67.125]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id KAA24865 for ; Mon, 12 Oct 1998 10:10:04 -0700 (PDT) (envelope-from ken@panzer.plutotech.com) Received: (from ken@localhost) by panzer.plutotech.com (8.9.1/8.8.5) id LAA25293; Mon, 12 Oct 1998 11:09:48 -0600 (MDT) From: "Kenneth D. Merry" Message-Id: <199810121709.LAA25293@panzer.plutotech.com> Subject: Re: devstat warning In-Reply-To: from "Brian W. Buchanan" at "Oct 12, 98 09:48:39 am" To: brian@CSUA.Berkeley.EDU (Brian W. Buchanan) Date: Mon, 12 Oct 1998 11:09:48 -0600 (MDT) Cc: current@FreeBSD.ORG X-Mailer: ELM [version 2.4ME+ PL28s (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Brian W. Buchanan wrote... > The following appeared in the kernel log (I don't know what was going on > at the time, as I didn't notice it until I read this morning's security > check): > > devstat_end_transaction: HELP!! busy_count is < 0! > > Can someone tell me what this means? It means: - you don't have the latest kernel (which indicates which driver ran into the problem) - The driver has a bug in its devstat implementation. I know for sure that there are problems in the wd driver w.r.t. devstat. Mike hasn't been able to track them down, though. Don't worry, it's not a harmful bug, it just means that your disk statistics will be a little off. I plan on disabling this warning before 3.0, so people don't get confused, upset, distraught, etc. over it. I'll re-enable it after 3.0, though. It has exposed bugs in the devstat implementation of several drivers that might not have been found otherwise. Ken -- Kenneth Merry ken@plutotech.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message