From owner-freebsd-current@FreeBSD.ORG Thu Nov 27 03:05:01 2003 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 22A1C16A4CE for ; Thu, 27 Nov 2003 03:05:01 -0800 (PST) Received: from ptcnat.era.pl (ptcnat.era.pl [213.158.197.100]) by mx1.FreeBSD.org (Postfix) with ESMTP id AFDB643FEA for ; Thu, 27 Nov 2003 03:04:53 -0800 (PST) (envelope-from zaks@era.pl) Received: by localhost (Postfix, from userid 1001) id 3A1D81141A; Thu, 27 Nov 2003 12:04:51 +0100 (CET) To: =?iso-8859-2?q?S=B3awek_=AFak?= From: =?iso-8859-2?q?S=B3awek_=AFak?= References: <867k1n16zd.fsf@thirst.unx.era.pl> Date: Thu, 27 Nov 2003 12:04:51 +0100 In-Reply-To: <867k1n16zd.fsf@thirst.unx.era.pl> =?iso-8859-2?q?=28S=B3awek's?= message of "Wed, 26 Nov 2003 16:31:50 +0100") Message-ID: <86isl6xeb0.fsf@thirst.unx.era.pl> User-Agent: Gnus/5.1003 (Gnus v5.10.3) XEmacs/21.4 (Reasonable Discussion, berkeley-unix) MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="=-=-=" X-Content-Filtered-By: Mailman/MimeDel 2.1.1 cc: freebsd-current@freebsd.org Subject: Re: UFS lockups X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 27 Nov 2003 11:05:01 -0000 --=-=-= Content-Type: text/plain; charset=iso-8859-2 Content-Transfer-Encoding: 8bit Sławek Żak writes: > I observe UFS lockups under heavy I/O. To reproduce the problem run around > 10 copies of cp -Rp /usr/some-random-dir. All cp's after some time are hanging > on getblk. du's running concurrently are hanging in ufs state. The filesystems > are UFS2. The Server is running 5.2-BETA on SMP Dell 2650. Filesystems are laid > on Adaptec RAID controller (aac). Any ideas how to trace the problem? I managed to obtain trace of one of the processes hung in the ufs state. Sorry for the form, I can't make a text dump of the messages. /S --=-=-=--