From owner-freebsd-stable@FreeBSD.ORG Mon Feb 13 23:15:20 2006 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 02F8616A420 for ; Mon, 13 Feb 2006 23:15:20 +0000 (GMT) (envelope-from buckaroo@bitparts.org) Received: from mail.bitparts.org (63-253-101-190.ip.mcleodusa.net [63.253.101.190]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5C09543D76 for ; Mon, 13 Feb 2006 23:15:11 +0000 (GMT) (envelope-from buckaroo@bitparts.org) Received: from [127.0.0.1] (71-11-157-24.dhcp.stls.mo.charter.com [71.11.157.24]) (authenticated bits=0) by mail.bitparts.org (8.13.5/8.13.5) with ESMTP id k1DNF6pL077292 for ; Mon, 13 Feb 2006 17:15:08 -0600 (CST) (envelope-from buckaroo@bitparts.org) Message-ID: <43F112FC.3040000@bitparts.org> Date: Mon, 13 Feb 2006 17:15:08 -0600 From: "J. Buck Caldwell" User-Agent: Thunderbird 1.5 (Windows/20051201) MIME-Version: 1.0 To: freebsd-stable@freebsd.org References: <20060213230934.GA1549@scott.blazing.de> In-Reply-To: <20060213230934.GA1549@scott.blazing.de> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Received-SPF: pass (mail.bitparts.org: authenticated connection) receiver=mail.bitparts.org; client-ip=71.11.157.24; helo=[127.0.0.1]; envelope-from=buckaroo@bitparts.org; x-software=spfmilter 0.93 http://www.acme.com/software/spfmilter/; Subject: Re: calcru: negative time (Interrupt Storm on cpu0: timer) X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 13 Feb 2006 23:15:20 -0000 Only time I've ever seen this problem is running on a VMWARE virtual server. Is that the case here? If so, try: sysctl kern.timecounter.hardware=TSC That did the trick for me. Frank Steinborn wrote: > Hello, > > After reboot yesterday, my system suddenly started to flood syslog with > following message: > > calcru: runtime went backwards from 1966191374 usec to 1966189453 usec > for pid 29988 (screen) > > It's not only screen, i saw sh and su also, but in the last hour only > screen. A vmstat -i and the same 5 seconds later: > > interrupt total rate > irq1: atkbd0 1 0 > irq13: npx0 1 0 > irq14: ata0 410366 5 > irq17: em0 20882069 263 > cpu0: timer 158483081 2000 > Total 179775518 2268 > > interrupt total rate > irq1: atkbd0 1 0 > irq13: npx0 1 0 > irq14: ata0 410430 5 > irq17: em0 20885602 263 > cpu0: timer 158505514 2000 > Total 179801548 2268 > > Is this an interrupt storm? I know that there is a FAQ entry about the > negative time issue, but it seems this is more a bad workaround I > guess. The system was running without problems for 3 months or so and > as I said the problem suddenly appeared yesterday. > > Any hints on whats wrong here? > > Thanks in advance, > Frank > > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" > > >