From owner-freebsd-hackers@FreeBSD.ORG Wed Mar 7 23:47:12 2007 Return-Path: X-Original-To: freebsd-hackers@freebsd.org Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id AEC2B16A405 for ; Wed, 7 Mar 2007 23:47:12 +0000 (UTC) (envelope-from edwin@mavetju.org) Received: from mail4out.barnet.com.au (mail4.barnet.com.au [202.83.178.125]) by mx1.freebsd.org (Postfix) with ESMTP id 2A32013C4A6 for ; Wed, 7 Mar 2007 23:47:11 +0000 (UTC) (envelope-from edwin@mavetju.org) Received: by mail4out.barnet.com.au (Postfix, from userid 1001) id 2794237CAA1; Thu, 8 Mar 2007 10:31:21 +1100 (EST) X-Viruscan-Id: <45EF4B48000004BE14289B@BarNet> Received: from mail4auth.barnet.com.au (mail4.barnet.com.au [202.83.178.125]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mail4.barnet.com.au (Postfix) with ESMTP id AEA99422089; Thu, 8 Mar 2007 10:31:20 +1100 (EST) Received: from k7.mavetju (k7.mavetju.org [10.251.1.18]) by mail4auth.barnet.com.au (Postfix) with ESMTP id 6EF5137CA95; Thu, 8 Mar 2007 10:31:20 +1100 (EST) Received: by k7.mavetju (Postfix, from userid 1001) id 34A1A123; Thu, 8 Mar 2007 10:31:20 +1100 (EST) Date: Thu, 8 Mar 2007 10:31:20 +1100 From: Edwin Groothuis To: Ed Maste Message-ID: <20070307233120.GE90167@k7.mavetju> Mail-Followup-To: Edwin Groothuis , Ed Maste , freebsd-hackers@freebsd.org References: <20070307230731.GA71684@sandvine.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070307230731.GA71684@sandvine.com> User-Agent: Mutt/1.4.2.1i Cc: freebsd-hackers@freebsd.org Subject: Re: Hung kernel from sysv semaphore semu_list corruption X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 07 Mar 2007 23:47:12 -0000 On Wed, Mar 07, 2007 at 06:07:31PM -0500, Ed Maste wrote: > Nightly tests on our 6.1-based installation using pgsql have resulted in > a number of kernel hangs, due to a corrupt semu_list (the list ended up > with a loop). Sounds like an issue we have for a long time. Unfortunately it only happens on the active database, not on the replicated ones. Once it is blessed I'm going to try it. Edwin -- Edwin Groothuis | Personal website: http://www.mavetju.org edwin@mavetju.org | Weblog: http://weblog.barnet.com.au/edwin/