From owner-freebsd-stable@FreeBSD.ORG Wed Oct 30 04:52:45 2013 Return-Path: Delivered-To: freebsd-stable@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 9837ED6B for ; Wed, 30 Oct 2013 04:52:45 +0000 (UTC) (envelope-from shawn@wallbridge.net) Received: from mail.wallbridge.net (mail.wallbridge.net [72.55.175.210]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 0F49622E1 for ; Wed, 30 Oct 2013 04:52:44 +0000 (UTC) Received: from [192.168.1.101] (rrcs-24-43-36-195.west.biz.rr.com [24.43.36.195]) by mail.wallbridge.net (OpenSMTPD) with ESMTP id 8ad22b5e (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128) for ; Tue, 29 Oct 2013 23:37:36 -0500 (CDT) From: Shawn Wallbridge Subject: 9.2-RELEASE Kernel panic, mbuf underflow Message-Id: Date: Tue, 29 Oct 2013 21:37:32 -0700 To: freebsd-stable@FreeBSD.org Mime-Version: 1.0 (Mac OS X Mail 7.0 \(1812\)) X-Mailer: Apple Mail (2.1812) Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.14 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 30 Oct 2013 04:52:45 -0000 I have a file server that keeps panic=92ing with a mbuf cluster in the = 17 Quadrillion range (2^64 - 2). I am pretty sure it=92s a buffer = underflow. I have opened a PR, but I haven=92t had any movement on it. This = happened while I was running 9.1-RELEASE as well. Here is the PR.. http://www.freebsd.org/cgi/query-pr.cgi?pr=3D183424 And I have uploaded the crash dumps here.. http://www.wallbridge.net/crash/ If anyone has any ideas, I would be grateful as this is a production box = and it=92s really impacting us.=20 shawn