From owner-freebsd-questions@FreeBSD.ORG Sat Oct 11 15:23:12 2008 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 556BD1065691 for ; Sat, 11 Oct 2008 15:23:12 +0000 (UTC) (envelope-from ml@t-b-o-h.net) Received: from vjofn.tucs-beachin-obx-house.com (vjofn-pt.tunnel.tserv1.fmt.ipv6.he.net [IPv6:2001:470:1f00:ffff::5e5]) by mx1.freebsd.org (Postfix) with ESMTP id 26A448FC0A for ; Sat, 11 Oct 2008 15:23:11 +0000 (UTC) (envelope-from ml@t-b-o-h.net) Received: from setup.house.tucs-beachin-obx-house.com (cpe-24-161-50-5.hvc.res.rr.com [24.161.50.5]) (authenticated bits=0) by vjofn.tucs-beachin-obx-house.com (8.14.2/8.14.2) with ESMTP id m9BFN0Is021582 for ; Sat, 11 Oct 2008 11:23:11 -0400 (EDT) Received: from setup.house.tucs-beachin-obx-house.com (localhost [127.0.0.1]) by setup.house.tucs-beachin-obx-house.com (8.14.3/8.14.3) with ESMTP id m9BFMMrL097963 for ; Sat, 11 Oct 2008 11:22:22 -0400 (EDT) (envelope-from tbohml@setup.house.tucs-beachin-obx-house.com) Received: (from tbohml@localhost) by setup.house.tucs-beachin-obx-house.com (8.14.3/8.14.2/Submit) id m9BFMM03097961 for freebsd-questions@freebsd.org; Sat, 11 Oct 2008 11:22:22 -0400 (EDT) (envelope-from tbohml) From: Tuc Message-Id: <200810111522.m9BFMM03097961@setup.house.tucs-beachin-obx-house.com> To: freebsd-questions@freebsd.org Date: Sat, 11 Oct 2008 11:22:21 -0400 (EDT) X-Mailer: ELM [version 2.5 PL8] MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.64 on 192.168.3.118 Subject: Worth persuing a KDB: stack backtrace: ? 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: Sat, 11 Oct 2008 15:23:12 -0000 Hi, I have a 5.5-STABLE laptop thats been having issues lately, mostly related to memory. I bought new chips, and I think I narrowed it down to one of the Dimm slots being bad. I did a memtest for 25 hours and it seemed stable. I started up and started downloading a backup of over 5K emails. (All have to go through mimedefang, procmail and sendmail... So the system was a bit sluggish. I started to get things like : Oct 10 22:06:29 himinbjorg kernel: KDB: stack backtrace: Oct 10 22:06:29 himinbjorg kernel: kdb_backtrace(c3053200,1,dbb54c04,dbb54bf0,c0 73ba78) at kdb_backtrace+0x29 Oct 10 22:06:29 himinbjorg kernel: getdirtybuf(dbb54be0,0,1,cc1c81e8,1) at getdi rtybuf+0x27 Oct 10 22:06:29 himinbjorg kernel: flush_deplist(c305354c,1,dbb54c04) at flush_d eplist+0x34 Oct 10 22:06:29 himinbjorg kernel: flush_inodedep_deps(c216d000,715e,c089bcf8,c0 808b16,ef) at flush_inodedep_deps+0x7d Oct 10 22:06:29 himinbjorg kernel: softdep_sync_metadata(dbb54ca0) at softdep_sy nc_metadata+0x8c Oct 10 22:06:29 himinbjorg kernel: ffs_fsync(dbb54ca0) at ffs_fsync+0x33e Oct 10 22:06:29 himinbjorg kernel: fsync(c3549600,dbb54d04,1,1,286) at fsync+0x1 03 Oct 10 22:06:29 himinbjorg kernel: syscall(2f,2f,bfbf002f,80fef20,0) at syscall+ 0x227 Oct 10 22:06:29 himinbjorg kernel: Xint0x80_syscall() at Xint0x80_syscall+0x1f Oct 10 22:06:29 himinbjorg kernel: --- syscall (95, FreeBSD ELF32, fsync), eip = 0x28181ca7, esp = 0xbfbf6d1c, ebp = 0xbfbf86e8 --- and Oct 10 22:08:21 himinbjorg kernel: KDB: stack backtrace: Oct 10 22:08:21 himinbjorg kernel: kdb_backtrace(c345fe80,1,daf32c04,daf32bf0,c0 73ba78) at kdb_backtrace+0x29 Oct 10 22:08:21 himinbjorg kernel: getdirtybuf(daf32be0,0,1,cc22e334,1) at getdi rtybuf+0x27 Oct 10 22:08:21 himinbjorg kernel: flush_deplist(c295a34c,1,daf32c04) at flush_d eplist+0x34 Oct 10 22:08:21 himinbjorg kernel: flush_inodedep_deps(c216d000,72b7,c089bcf8,c0 808b16,ef) at flush_inodedep_deps+0x7d Oct 10 22:08:21 himinbjorg kernel: softdep_sync_metadata(daf32ca0) at softdep_sy nc_metadata+0x8c Oct 10 22:08:21 himinbjorg kernel: ffs_fsync(daf32ca0) at ffs_fsync+0x33e Oct 10 22:08:21 himinbjorg kernel: fsync(c2bc0600,daf32d04,1,1,286) at fsync+0x1 03 Oct 10 22:08:21 himinbjorg kernel: syscall(bfbf002f,bfbf002f,bfbf002f,80fef20,0) at syscall+0x227 Oct 10 22:08:21 himinbjorg kernel: Xint0x80_syscall() at Xint0x80_syscall+0x1f Oct 10 22:08:21 himinbjorg kernel: --- syscall (95, FreeBSD ELF32, fsync), eip = 0x28181ca7, esp = 0xbfbf6d1c, ebp = 0xbfbf86e8 --- infact..................... himinbjorg% grep "KDB: stack" spool Oct 10 22:06:29 himinbjorg kernel: KDB: stack backtrace: Oct 10 22:06:29 himinbjorg kernel: KDB: stack backtrace: Oct 10 22:06:29 himinbjorg kernel: KDB: stack backtrace: Oct 10 22:08:21 himinbjorg kernel: KDB: stack backtrace: Oct 10 22:09:23 himinbjorg kernel: KDB: stack backtrace: Oct 10 22:09:57 himinbjorg kernel: KDB: stack backtrace: Oct 10 22:10:08 himinbjorg kernel: KDB: stack backtrace: Oct 10 22:10:43 himinbjorg kernel: KDB: stack backtrace: Since its 5.5, and the system seems to potentially not be "with it" hardware wise, think its worth persuing what happened here? Thanks, Tuc