From owner-freebsd-stable@FreeBSD.ORG Tue May 31 21:29:05 2005 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id F267716A41C for ; Tue, 31 May 2005 21:29:04 +0000 (GMT) (envelope-from sven@dmv.com) Received: from smtp-gw-cl-d.dmv.com (smtp-gw-cl-d.dmv.com [216.240.97.42]) by mx1.FreeBSD.org (Postfix) with ESMTP id 86D5643D1D for ; Tue, 31 May 2005 21:29:04 +0000 (GMT) (envelope-from sven@dmv.com) Received: from lanshark.dmv.com (lanshark.dmv.com [216.240.97.46]) by smtp-gw-cl-d.dmv.com (8.12.10/8.12.10) with ESMTP id j4VLSvm4006951; Tue, 31 May 2005 17:28:57 -0400 (EDT) (envelope-from sven@dmv.com) From: Sven Willenberger To: Derek =?iso-8859-2?Q?Kuli=F1ski?= In-Reply-To: <8910581751.20050529112956@takeda.tk> References: <8910581751.20050529112956@takeda.tk> Content-Type: text/plain; charset=iso-8859-2 Date: Tue, 31 May 2005 17:29:36 -0400 Message-Id: <1117574977.19736.75.camel@lanshark.dmv.com> Mime-Version: 1.0 X-Mailer: Evolution 2.0.4 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.48 on 216.240.97.42 Cc: freebsd-stable@freebsd.org Subject: Re: stack backtrace X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 31 May 2005 21:29:05 -0000 On Sun, 2005-05-29 at 11:29 -0700, Derek Kuliński wrote: > Hello, > > Today I noticed following message in the log: > > > KDB: stack backtrace: > > kdb_backtrace(c07163b8,2,c661994c,0,22) at kdb_backtrace+0x2e > > getdirtybuf(d109ebac,0,1,c661994c,1) at getdirtybuf+0x2b > > flush_deplist(c282f4cc,1,d109ebd4,d109ebd8,0) at flush_deplist+0x57 > > flush_inodedep_deps(c15ba800,22a8a,c2760a7c,d109ec34,c04f7f87) at flush_inodedep_deps+0x9e > > softdep_sync_metadata(d109eca4,c2760a50,50,c06ea8f0,0) at softdep_sync_metadata+0x9d > > ffs_fsync(d109eca4,0,0,0,0) at ffs_fsync+0x4b2 > > fsync(c17ba000,d109ed14,4,d109ed3c,c0515916) at fsync+0x1a1 > > syscall(c069002f,2f,2f,81522b0,81522b0) at syscall+0x370 > > Xint0x80_syscall() at Xint0x80_syscall+0x1f > > --- syscall (95, FreeBSD ELF32, fsync), eip = 0x28143dcf, esp = 0xbfbfd34c, ebp = 0xbfbfd358 --- > > KDB: stack backtrace: > > kdb_backtrace(c07163b8,2,c6683118,0,22) at kdb_backtrace+0x2e > > getdirtybuf(d1098bac,0,1,c6683118,1) at getdirtybuf+0x2b > > flush_deplist(c282facc,1,d1098bd4,d1098bd8,0) at flush_deplist+0x57 > > flush_inodedep_deps(c15ba800,1e9a4,c24cc974,d1098c34,c04f7f87) at flush_inodedep_deps+0x9e > > softdep_sync_metadata(d1098ca4,c24cc948,50,c06ea8f0,0) at softdep_sync_metadata+0x9d > > ffs_fsync(d1098ca4,0,0,0,0) at ffs_fsync+0x4b2 > > fsync(c17b9c00,d1098d14,4,c17b9c00,7) at fsync+0x1a1 > > syscall(2f,2f,bfbf002f,8111fe0,0) at syscall+0x370 > > Xint0x80_syscall() at Xint0x80_syscall+0x1f > > --- syscall (95, FreeBSD ELF32, fsync), eip = 0x282dfdcf, esp = 0xbfbf9a8c, ebp = 0xbfbfb468 --- > > System didn't seem to crash, what does it mean? > > The OS is FreeBSD 5.4-RELEASE, it was compiled using: > CPUTYPE?=i686 > COPTFLAGS= -O -pipe > Apparently this is still somewhat of a mystery, but you are not the first person to witness this: http://lists.freebsd.org/pipermail/freebsd-stable/2005-April/013679.html http://lists.freebsd.org/pipermail/freebsd-current/2004-July/031576.html I don't know if anyone is actually looking into this (behind the scenes maybe) or whether we just need to accumulate a critical mass of similar notices to raise an eyebrow. If your system does not lock up as a result (the way it used to in the earlier 5.x series) then perhaps it is harmless .. Sven