From owner-freebsd-bugs@FreeBSD.ORG Wed Jun 30 17:01:03 2004 Return-Path: Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 3C68716A4CE for ; Wed, 30 Jun 2004 17:01:03 +0000 (GMT) Received: from freefall.freebsd.org (freefall.freebsd.org [216.136.204.21]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1938843D31 for ; Wed, 30 Jun 2004 17:01:03 +0000 (GMT) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.12.11/8.12.11) with ESMTP id i5UH0iBT061119 for ; Wed, 30 Jun 2004 17:00:44 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.12.11/8.12.11/Submit) id i5UH0ilQ061117; Wed, 30 Jun 2004 17:00:44 GMT (envelope-from gnats) Resent-Date: Wed, 30 Jun 2004 17:00:44 GMT Resent-Message-Id: <200406301700.i5UH0ilQ061117@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-bugs@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, Nokilai Saoukh Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id CC0F816A4CE for ; Wed, 30 Jun 2004 16:56:35 +0000 (GMT) Received: from www.freebsd.org (www.freebsd.org [216.136.204.117]) by mx1.FreeBSD.org (Postfix) with ESMTP id C532143D2D for ; Wed, 30 Jun 2004 16:56:35 +0000 (GMT) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (localhost [127.0.0.1]) by www.freebsd.org (8.12.11/8.12.11) with ESMTP id i5UGu540019464 for ; Wed, 30 Jun 2004 16:56:05 GMT (envelope-from nobody@www.freebsd.org) Received: (from nobody@localhost) by www.freebsd.org (8.12.11/8.12.11/Submit) id i5UGu56V019463; Wed, 30 Jun 2004 16:56:05 GMT (envelope-from nobody) Message-Id: <200406301656.i5UGu56V019463@www.freebsd.org> Date: Wed, 30 Jun 2004 16:56:05 GMT From: Nokilai Saoukh To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-2.3 Subject: kern/68523: WITNESS Report: lock order reversal X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 30 Jun 2004 17:01:03 -0000 >Number: 68523 >Category: kern >Synopsis: WITNESS Report: lock order reversal >Confidential: no >Severity: serious >Priority: high >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Wed Jun 30 17:00:44 GMT 2004 >Closed-Date: >Last-Modified: >Originator: Nokilai Saoukh >Release: FreeBSD 5.2-CURRENT >Organization: none >Environment: FreeBSD xxx.org 5.2-CURRENT FreeBSD 5.2-CURRENT #1: Wed Jun 30 13:25:36 MSD 2004 nms@xxx.org:/usr/obj/usr/src/sys/C2 i386 >Description: lock order reversal 1st 0xc22dc6b4 vm object (vm object) @ /usr/src/sys/vm/swap_pager.c:1311 2nd 0xc069c5a0 swap_pager swhash (swap_pager swhash) @ /usr/src/sys/vm/swap_pager.c:1797 3rd 0xc21c1bdc vm object (vm object) @ /usr/src/sys/vm/uma_core.c:923 Stack backtrace: backtrace(0,1,c0667cd8,c0668f20,c063585c) at backtrace+0x12 witness_checkorder(c21c1bdc,9,c061cd34,39b) at witness_checkorder+0x53b _mtx_lock_flags(c21c1bdc,0,c061cd34,39b,c21a1288) at _mtx_lock_flags+0x57 obj_alloc(c2198dc0,1000,dc8c8a1f,101,dc8c8a2c) at obj_alloc+0x31 slab_zalloc(c2198dc0,1,c2198dc0,c2198dc0,c21a1280) at slab_zalloc+0x87 uma_zone_slab(c2198dc0,1,c21a1288,0,c061cd34,798) at uma_zone_slab+0xb0 uma_zalloc_internal(c2198dc0,0,1,c21a1288,0) at uma_zalloc_internal+0x29 uma_zalloc_arg(c2198dc0,0,1) at uma_zalloc_arg+0x2a2 swp_pager_meta_build(c22dc6b4,5,0,2,0) at swp_pager_meta_build+0x108 swap_pager_putpages(c22dc6b4,dc8c8bf0,4,0,dc8c8b60) at swap_pager_putpages+0x2a8 default_pager_putpages(c22dc6b4,dc8c8bf0,4,0,dc8c8b60) at default_pager_putpages+0x18 vm_pageout_flush(dc8c8bf0,4,0,c0667540,2ff) at vm_pageout_flush+0x112 vm_pageout_clean(c19b2bb8) at vm_pageout_clean+0x2a5 vm_pageout_scan(0,c069caa0,0,c061cb28,5a7) at vm_pageout_scan+0x543 vm_pageout(0,dc8c8d48,0,c05a016c,0) at vm_pageout+0x2cf fork_exit(c05a016c,0,dc8c8d48) at fork_exit+0x98 fork_trampoline() at fork_trampoline+0x8 --- trap 0x1, eip = 0, esp = 0xdc8c8d7c, ebp = 0 --- E >How-To-Repeat: >Fix: >Release-Note: >Audit-Trail: >Unformatted: