From owner-freebsd-bugs@FreeBSD.ORG Sat Sep 17 20:30:11 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 32573106566B for ; Sat, 17 Sep 2011 20:30:11 +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 05E378FC18 for ; Sat, 17 Sep 2011 20:30:11 +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 p8HKUAtu045821 for ; Sat, 17 Sep 2011 20:30:10 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.4/8.14.4/Submit) id p8HKUAg7045819; Sat, 17 Sep 2011 20:30:10 GMT (envelope-from gnats) Resent-Date: Sat, 17 Sep 2011 20:30:10 GMT Resent-Message-Id: <201109172030.p8HKUAg7045819@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, Allen Landsidel Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 752B01065670 for ; Sat, 17 Sep 2011 20:20:52 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from red.freebsd.org (red.freebsd.org [IPv6:2001:4f8:fff6::22]) by mx1.freebsd.org (Postfix) with ESMTP id 642DE8FC08 for ; Sat, 17 Sep 2011 20:20:52 +0000 (UTC) Received: from red.freebsd.org (localhost [127.0.0.1]) by red.freebsd.org (8.14.4/8.14.4) with ESMTP id p8HKKq8b026359 for ; Sat, 17 Sep 2011 20:20:52 GMT (envelope-from nobody@red.freebsd.org) Received: (from nobody@localhost) by red.freebsd.org (8.14.4/8.14.4/Submit) id p8HKKqcm026358; Sat, 17 Sep 2011 20:20:52 GMT (envelope-from nobody) Message-Id: <201109172020.p8HKKqcm026358@red.freebsd.org> Date: Sat, 17 Sep 2011 20:20:52 GMT From: Allen Landsidel To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 Cc: Subject: kern/160790: panic: VPUTX: negative ref count with FUSE X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 17 Sep 2011 20:30:11 -0000 >Number: 160790 >Category: kern >Synopsis: panic: VPUTX: negative ref count with FUSE >Confidential: no >Severity: critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sat Sep 17 20:30:10 UTC 2011 >Closed-Date: >Last-Modified: >Originator: Allen Landsidel >Release: 8.2-STABLE >Organization: >Environment: FreeBSD is01 8.2-STABLE FreeBSD 8.2-STABLE #0: Thu Sep 15 15:30:52 EDT 2011 root@:/usr/obj/usr/src/sys/GENERIC amd64 >Description: Unexpected panic from nowhere. Had been storing files with MooseFS at 10-20 mbit/sec for several hours when all connections to machine were lost. A visit to the console showed a panic. System did not automatically reboot after the panic, hard reset was required. May be related to / dupe of http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/156797 though ZFS was not involved. Full panic is: vputx: negative ref count 0xffffff01573bf1d8: tag fuse, type VREC usecount 0, writecount 0, refcount 0 mountedhere 0 flags (VI_FREE) VI_LOCKed lock type fuse: UNLOCKED nodeid: 0, parent_nid: 38125, fh_counter: 0, nlookup: 1, flags: 0 panic: vputx: negative ref cnt cpuid = 3 KDB: stack backtrace: #0 0xffffffff805fdda0 at kdb_backtrace+0x60 #1 0xffffffff805cbbd4 at panic_0x1b4 #2 0xffffffff8065e211 at vputx+0x101 #3 0xffffffff8065e40e at vput+0xe #4 0xffffffff80660c50 at kern_statat_vnhook+0x100 #5 0xffffffff80660d95 at kern_statat+0x15 #6 0xffffffff80660dbc at kern_lstat+0x1c #7 0xffffffff80660e5d at lstat+0x2d #8 0xffffffff8060abde at syscallenter+0x2fe #9 0xffffffff808bd961 at syscall+0x41 #10 0xffffffff808a5ed2 at Xfast_syscall+0xe2 Uptime: 2h47m36s Cannot dump. Device not defined or unavailable. Automatic reboot in 15 seconds - press a key on the console to abort >How-To-Repeat: Exact steps are unknown. The system had been up running apache and MooseFS (a FUSE based distributed filesystem) for several hours before the panic. Apache only used to serve images via the mounted FUSE filesystem. >Fix: >Release-Note: >Audit-Trail: >Unformatted: