From owner-freebsd-current@FreeBSD.ORG Tue Apr 5 14:18:21 2005 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 3E4A016A53F for ; Tue, 5 Apr 2005 14:18:21 +0000 (GMT) Received: from mail27.sea5.speakeasy.net (mail27.sea5.speakeasy.net [69.17.117.29]) by mx1.FreeBSD.org (Postfix) with ESMTP id CEFBD43D55 for ; Tue, 5 Apr 2005 14:18:20 +0000 (GMT) (envelope-from jhb@FreeBSD.org) Received: (qmail 11872 invoked from network); 5 Apr 2005 14:18:20 -0000 Received: from server.baldwin.cx ([216.27.160.63]) (envelope-sender )AES256-SHA encrypted SMTP for ; 5 Apr 2005 14:18:20 -0000 Received: from [10.50.41.231] (gw1.twc.weather.com [216.133.140.1]) (authenticated bits=0) by server.baldwin.cx (8.13.1/8.13.1) with ESMTP id j35EI6P0065409; Tue, 5 Apr 2005 10:18:11 -0400 (EDT) (envelope-from jhb@FreeBSD.org) From: John Baldwin To: freebsd-current@FreeBSD.org Date: Tue, 5 Apr 2005 10:11:26 -0400 User-Agent: KMail/1.6.2 References: <20050325081546.GV54204@obiwan.tataz.chchile.org> In-Reply-To: <20050325081546.GV54204@obiwan.tataz.chchile.org> MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: 7bit Message-Id: <200504051011.26409.jhb@FreeBSD.org> X-Spam-Status: No, score=-102.8 required=4.2 tests=ALL_TRUSTED, USER_IN_WHITELIST autolearn=failed version=3.0.2 X-Spam-Checker-Version: SpamAssassin 3.0.2 (2004-11-16) on server.baldwin.cx cc: jeffr@FreeBSD.org cc: Jeremie Le Hen Subject: Re: panic: Duplicate free of item ... [again] 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: Tue, 05 Apr 2005 14:18:21 -0000 On Friday 25 March 2005 03:15 am, Jeremie Le Hen wrote: > Hi again list, > > I've just rebooted, and tried to update my kernel tree using cvs(1). > Same kernel as my previous message, from 2005/03/24 with Soren's patch. > I caught another panic : > > %%% > Slab at 0x1cc1f70, freei 10 = 0. > panic: Duplicate free of item 0x1cc1528 from zone 0xc1045ba0(g_bio) > > KDB: stack backtrace: > kdb_backtrace() > panic() > uma_dbg_free() at uma_dbg_free+0x17b > uma_zfree_arg() at uma_zfree_arg+0x131 > g_destroy_bio() at g_destroy_bio+0x22 > g_vfs_done() at g_vfs_done+0x6c > biodone() at biodone+0x70 > g_io_schedule_up() at g_io_schedule_up+0x6b > g_up_procbody() at g_up_procbody+0x98 > fork_exit() > fork_trampoline() > --- trap 0x1, eip = 0, esp = 0xd102fd7c, ebp = 0 --- > %%% > > I'm afraid I won't be able to get a kernel dump since my disk space > is quite limited and I didn't have time to move the previous one... > Nevertheless I'll inform you if I manage to get it. I just got a similar panic but from the mbuf zone while doing a buildworld loop: Slab at 0xc2269fa8, freei 10 = 0. panic: Duplicate free of item 0xc2269a00 from zone 0xc0c3f840(Mbuf) cpuid = 0 KDB: enter: panic: [thread pid 20904 tid 100157 ] db> tr Tracing pid 20904 tid 100157 td 0xc290ab80 kdb_enter() panic() uma_dbug_free() uma_zfree_arg() soreceive() fifo_read()_f() dofileread() read() syscall() There's a photo of the panic and a dump of the mbuf at http://people.freebsd.org/~jhb/bsdboy_panic_040405.jpg The machine is still in ddb so I can provide more info if needed. -- John Baldwin <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org