From owner-freebsd-questions@FreeBSD.ORG Sun May 10 11:53:01 2009 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 23F25106566C for ; Sun, 10 May 2009 11:53:01 +0000 (UTC) (envelope-from onemda@gmail.com) Received: from mail-fx0-f216.google.com (mail-fx0-f216.google.com [209.85.220.216]) by mx1.freebsd.org (Postfix) with ESMTP id A61BF8FC12 for ; Sun, 10 May 2009 11:53:00 +0000 (UTC) (envelope-from onemda@gmail.com) Received: by fxm12 with SMTP id 12so2190016fxm.43 for ; Sun, 10 May 2009 04:52:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=eV+0pYUAxS5dKAU0I15ivPwb1CsXeZzk0OSFbj3fo+Q=; b=cbBUDrtDDLEM+JLU8kG+v0JCVi8T5KN7kbS96MTjcoaG8SpozyawMDRlV5jh2nbtqi 6aUcNJxuG/zkpc+BF2Fi673K8tebs3mt4xO0BJp0KytRiVZZUMquRDs8WCQuhx8gG1Qv gmXjAT7Cen2b5VA1DsTyiQCOAKPTdtmf+x9Nw= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=K3k7ei17dXTC90/ZIG1mbrz3vE+fl25nmoNklPcckckKi07S43vweaNOHU6kRTLsiO b3CbpF0KTJHc0YvLGTLqLVywpKiJzkN6y/al8x9R1KvJ/2RQvZMOm8eHjK4/nksfsG10 qohmr3whO4U0d2e4McylgMii1KYBY77AJ9Z+A= MIME-Version: 1.0 Received: by 10.239.133.67 with SMTP id 3mr343061hbu.63.1241956379501; Sun, 10 May 2009 04:52:59 -0700 (PDT) In-Reply-To: <4a05f963.OI3CMfJ3/j2hbi4D%perryh@pluto.rain.com> References: <4a04702a.ZaIfHAUzw/YexVK2%perryh@pluto.rain.com> <3a142e750905090746g5324d8ffl1ea10645c0e5f45c@mail.gmail.com> <4a05f963.OI3CMfJ3/j2hbi4D%perryh@pluto.rain.com> Date: Sun, 10 May 2009 13:52:59 +0200 Message-ID: <3a142e750905100452s73aa391bjcdc8fea49636ee37@mail.gmail.com> From: "Paul B. Mahol" To: perryh@pluto.rain.com Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: freebsd-questions@freebsd.org Subject: Re: how to fix "interrupt storm" X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 10 May 2009 11:53:01 -0000 On 5/9/09, perryh@pluto.rain.com wrote: > "Paul B. Mahol" wrote: >> On 5/8/09, perryh@pluto.rain.com wrote: >> > What, exactly, is an "interrupt storm", and how do I fix it? > ... >> > interrupt storm detected on "irq9:"; throttling interrupt source >> > interrupt storm detected on "irq9:"; throttling interrupt source >> > interrupt storm detected on "irq9:"; throttling interrupt source >> > interrupt storm detected on "irq9:"; throttling interrupt source >> > interrupt storm detected on "irq9:"; throttling interrupt source >> > ad6: FAILURE - SET_MULTI status=51 error=4 >> > ad6: TIMEOUT - READ_DMA retrying (1 retry left) LBA=136936 >> > >> > etc. etc. until I killed it with ^C. (Just entering "q", to cause >> > more(1) to exit and presumably stop od(1) with a SIGPIPE, did not >> > stop the spew of messages.) >> > >> > What does this indicate? Hardware problems? Bad configuration? >> > Something else? >> >> Output of "vmstat -i"? > > $ vmstat -i > interrupt total rate > irq0: clk 497386851 1004 > irq1: atkbd0 2491 0 > irq3: xl0 2030 0 > irq6: fdc0 11 0 > irq7: ppbus0 ppc0 1 0 > irq8: rtc 63654324 128 > irq9: uhci0+ 166216 0 uhci0 is doing strange things, what usb device are connected? It could be bad configuration, bug or hardware problem. > irq14: ata0 369620 0 > irq15: ata1 691 0 > Total 561582235 1133 > -- Paul