From owner-freebsd-hackers@FreeBSD.ORG Tue Mar 25 03:01:03 2008 Return-Path: Delivered-To: hackers@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 808AB1065672 for ; Tue, 25 Mar 2008 03:01:03 +0000 (UTC) (envelope-from wxs@atarininja.org) Received: from syn.atarininja.org (syn.csh.rit.edu [129.21.60.158]) by mx1.freebsd.org (Postfix) with ESMTP id 4AB9E8FC1F for ; Tue, 25 Mar 2008 03:01:03 +0000 (UTC) (envelope-from wxs@atarininja.org) Received: by syn.atarininja.org (Postfix, from userid 1001) id CA7FE5C17; Mon, 24 Mar 2008 22:46:31 -0400 (EDT) Date: Mon, 24 Mar 2008 22:46:31 -0400 From: Wesley Shields To: Bert JW Regeer Message-ID: <20080325024631.GF7923@atarininja.org> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) Cc: hackers@FreeBSD.org Subject: Re: zpool scrub tank && high file system activity caused crash 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: Tue, 25 Mar 2008 03:01:03 -0000 On Mon, Mar 24, 2008 at 04:23:19PM -0700, Bert JW Regeer wrote: > Hey guys, > > I am running FreeBSD 7.0-RELEASE with GENERIC on a AMD XP Athlon 3500+ with > 1267 MB of ram, and a GigBit NIC. I am testing out ZFS just for the hell of > it, I know, 32 bit is not suggested and runs badly, but it does what it > needs to do. > > I was copying large amounts of data for backup purposes from my MacBook Pro > to the machine over FTP. At the time I was looking around the man page for > zpool, and figured I'd run a zpool scrub just to see how badly it affects > performance. It affects it in that it takes down the machine with a dump. > > keyhole# kgdb kernel.debug /var/crash/vmcore.0 > [GDB will not be able to debug user-mode threads: /usr/lib/libthread_db.so: > Undefined symbol "ps_pglobal_lookup"] > GNU gdb 6.1.1 [FreeBSD] > Copyright 2004 Free Software Foundation, Inc. > GDB is free software, covered by the GNU General Public License, and you > are > welcome to change it and/or distribute copies of it under certain > conditions. > Type "show copying" to see the conditions. > There is absolutely no warranty for GDB. Type "show warranty" for details. > This GDB was configured as "i386-marcel-freebsd". > > Unread portion of the kernel message buffer: > panic: vm_page_insert: offset already allocated > cpuid = 0 > Uptime: 10h58m58s > Physical memory: 1267 MB > Dumping 335 MB: 320 304 288 272 256 240 224 208 192 176 160 144 128 112 96 > 80 64 48 32 16 Out of curiosity, have you done any tuning on this machine? Specifically some of the stuff mentioned on the wiki? -- WXS