From owner-freebsd-bugs@FreeBSD.ORG Wed Sep 21 23:50:06 2011 Return-Path: Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C0F16106566C for ; Wed, 21 Sep 2011 23:50:06 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id 9D1DB8FC12 for ; Wed, 21 Sep 2011 23:50:06 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.4/8.14.4) with ESMTP id p8LNo6Wf000573 for ; Wed, 21 Sep 2011 23:50:06 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.4/8.14.4/Submit) id p8LNo6L8000572; Wed, 21 Sep 2011 23:50:06 GMT (envelope-from gnats) Resent-Date: Wed, 21 Sep 2011 23:50:06 GMT Resent-Message-Id: <201109212350.p8LNo6L8000572@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, ruckc@yahoo.com Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 874C2106564A for ; Wed, 21 Sep 2011 23:49:45 +0000 (UTC) (envelope-from ruckc@nas.cruck.us) Received: from nas.cruck.us (173-167-202-19-ip-static.hfc.comcastbusiness.net [173.167.202.19]) by mx1.freebsd.org (Postfix) with ESMTP id 2B2658FC16 for ; Wed, 21 Sep 2011 23:49:44 +0000 (UTC) Received: from nas.cruck.us (localhost [127.0.0.1]) by nas.cruck.us (8.14.5/8.14.5) with ESMTP id p8LNW0Uf002182 for ; Wed, 21 Sep 2011 19:32:00 -0400 (EDT) (envelope-from ruckc@nas.cruck.us) Received: (from root@localhost) by nas.cruck.us (8.14.5/8.14.5/Submit) id p8LNW0bk002181; Wed, 21 Sep 2011 19:32:00 -0400 (EDT) (envelope-from ruckc) Message-Id: <201109212332.p8LNW0bk002181@nas.cruck.us> Date: Wed, 21 Sep 2011 19:32:00 -0400 (EDT) From: Curtis Ruck To: FreeBSD-gnats-submit@FreeBSD.org X-Send-Pr-Version: 3.113 Cc: Subject: kern/160893: 9.0-BETA2 kernel panic X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: ruckc@yahoo.com List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 Sep 2011 23:50:06 -0000 >Number: 160893 >Category: kern >Synopsis: 9.0-BETA2 kernel panic >Confidential: no >Severity: critical >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Wed Sep 21 23:50:06 UTC 2011 >Closed-Date: >Last-Modified: >Originator: Curtis Ruck >Release: FreeBSD 9.0-BETA2 amd64 >Organization: none >Environment: System: FreeBSD nas.cruck.us 9.0-BETA2 FreeBSD 9.0-BETA2 #0: Sun Sep 11 13:21:10 EDT 2011 root@nas.cruck.us:/usr/obj/usr/src/sys/GENERIC amd64 >Description: ZFS NOTICE: Prefetch is disabled by default if less than 4GB of RAM is present; to enable, add "vfs.zfs.prefetch_disable=0" to /boot/loader.conf. ZFS filesystem version 5 ZFS storage pool version 28 lock order reversal: 1st 0xfffffe0003af8638 ufs (ufs) @ /usr/src/sys/kern/vfs_lookup.c:530 2nd 0xffffff80f5a75338 bufwait (bufwait) @ /usr/src/sys/ufs/ffs/ffs_vnops.c:260 3rd 0xfffffe000df78098 ufs (ufs) @ /usr/src/sys/kern/vfs_subr.c:2134 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2a kdb_backtrace() at kdb_backtrace+0x37 _witness_debugger() at _witness_debugger+0x2e witness_checkorder() at witness_checkorder+0x807 __lockmgr_args() at __lockmgr_args+0xdc6 ffs_lock() at ffs_lock+0x8c VOP_LOCK1_APV() at VOP_LOCK1_APV+0x9b _vn_lock() at _vn_lock+0x47 vget() at vget+0x7b vfs_hash_get() at vfs_hash_get+0xd5 ffs_vgetf() at ffs_vgetf+0x48 softdep_sync_buf() at softdep_sync_buf+0x547 ffs_syncvnode() at ffs_syncvnode+0x2b3 ffs_truncate() at ffs_truncate+0x477 ufs_direnter() at ufs_direnter+0x73b ufs_makeinode() at ufs_makeinode+0x26a VOP_CREATE_APV() at VOP_CREATE_APV+0x8d vn_open_cred() at vn_open_cred+0x46a kern_openat() at kern_openat+0x1f9 syscallenter() at syscallenter+0x1aa syscall() at syscall+0x4c Xfast_syscall() at Xfast_syscall+0xdd --- syscall (5, FreeBSD ELF64, open), rip = 0x800936f2c, rsp = 0x7fffffffdac8, rbp = 0 --- pid 2044 (cvsup), uid 0: exited on signal 4 (core dumped) lock order reversal: 1st 0xffffff80f5c539d8 bufwait (bufwait) @ /usr/src/sys/kern/vfs_bio.c:2658 2nd 0xfffffe00153df600 dirhash (dirhash) @ /usr/src/sys/ufs/ufs/ufs_dirhash.c:284 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2a kdb_backtrace() at kdb_backtrace+0x37 _witness_debugger() at _witness_debugger+0x2e witness_checkorder() at witness_checkorder+0x807 _sx_xlock() at _sx_xlock+0x55 ufsdirhash_acquire() at ufsdirhash_acquire+0x33 ufsdirhash_add() at ufsdirhash_add+0x19 ufs_direnter() at ufs_direnter+0x909 ufs_makeinode() at ufs_makeinode+0x26a VOP_CREATE_APV() at VOP_CREATE_APV+0x8d vn_open_cred() at vn_open_cred+0x46a kern_openat() at kern_openat+0x1f9 syscallenter() at syscallenter+0x1aa syscall() at syscall+0x4c Xfast_syscall() at Xfast_syscall+0xdd --- syscall (5, FreeBSD ELF64, open), rip = 0x80112ef2c, rsp = 0x7fffff1f8b38, rbp = 0x180 --- panic: soabort: so_count cpuid = 0 KDB: enter: panic >How-To-Repeat: Heavy I/O load through either Samba or NFS on ZFS. >Fix: unknown >Release-Note: >Audit-Trail: >Unformatted: