From owner-freebsd-bugs@FreeBSD.ORG Thu Oct 4 05:20:04 2007 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 5742316A41A for ; Thu, 4 Oct 2007 05:20:04 +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 2E79213C45B for ; Thu, 4 Oct 2007 05:20:04 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.14.1/8.14.1) with ESMTP id l945K3a1017338 for ; Thu, 4 Oct 2007 05:20:03 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.1/8.14.1/Submit) id l945K3Ud017337; Thu, 4 Oct 2007 05:20:03 GMT (envelope-from gnats) Resent-Date: Thu, 4 Oct 2007 05:20:03 GMT Resent-Message-Id: <200710040520.l945K3Ud017337@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, John Merryweather Cooper Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id CA14716A474 for ; Thu, 4 Oct 2007 05:11:01 +0000 (UTC) (envelope-from root@borgsdemons.com) Received: from icarus.it.wsu.edu (icarus.it.wsu.edu [134.121.1.46]) by mx1.freebsd.org (Postfix) with ESMTP id 949CA13C457 for ; Thu, 4 Oct 2007 05:11:01 +0000 (UTC) (envelope-from root@borgsdemons.com) Received: from borgdemon3.temp.wsu.edu (res244074.resnet.wsu.edu [134.121.244.74]) by icarus.it.wsu.edu (8.13.6/8.13.6) with ESMTP id l944lm1n095466 for ; Wed, 3 Oct 2007 21:47:48 -0700 (PDT) Received: by borgdemon3.temp.wsu.edu (Postfix, from userid 0) id A4BE239829; Wed, 3 Oct 2007 19:56:46 -0700 (PDT) Message-Id: <20071004025646.A4BE239829@borgdemon3.temp.wsu.edu> Date: Wed, 3 Oct 2007 19:56:46 -0700 (PDT) From: John Merryweather Cooper To: FreeBSD-gnats-submit@FreeBSD.org X-Send-Pr-Version: 3.113 Cc: Subject: kern/116886: Lock Order Reversal on Current for kbd and zyd X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: John Merryweather Cooper List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 04 Oct 2007 05:20:04 -0000 >Number: 116886 >Category: kern >Synopsis: Lock Order Reversal on Current for kbd and zyd >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Thu Oct 04 05:20:03 GMT 2007 >Closed-Date: >Last-Modified: >Originator: John Merryweather Cooper >Release: FreeBSD 7.0-CURRENT amd64 >Organization: >Environment: System: FreeBSD borgdemon3.temp.wsu.edu 7.0-CURRENT FreeBSD 7.0-CURRENT #8: Mon Oct 1 12:32:21 PDT 2007 root@borgdemon3.temp.wsu.edu:/usr/obj/usr/src/sys/TURION amd64 >Description: When the zyd0 interface first takes a DHCP IP (or when it roams), it usually (but not always) throws the attach lock order reversal. Rarely, the machine will lock up as a result. >How-To-Repeat: When interface takes a DHCP IP address or roams. >Fix: unknown --- lock-order-reversal begins here --- Oct 3 19:27:26 borgdemon3 kernel: lock order reversal: (Giant after non-sleepable) Oct 3 19:27:26 borgdemon3 kernel: 1st 0xffffff0001674cf0 inp (udpinp) @ /usr/src/sys/netinet/in_mcast.c:670 Oct 3 19:27:26 borgdemon3 kernel: 2nd 0xffffffff8078e3c0 Giant (Giant) @ /usr/src/sys/netinet/in_mcast.c:317 Oct 3 19:27:26 borgdemon3 kernel: KDB: stack backtrace: Oct 3 19:27:26 borgdemon3 kernel: db_trace_self_wrapper() at db_trace_self_wrapper+0x2a Oct 3 19:27:26 borgdemon3 kernel: witness_checkorder() at witness_checkorder+0x64b Oct 3 19:27:26 borgdemon3 kernel: _mtx_lock_flags() at _mtx_lock_flags+0x75 Oct 3 19:27:26 borgdemon3 kernel: in_addmulti() at in_addmulti+0x1e3 Oct 3 19:27:26 borgdemon3 kernel: inp_setmoptions() at inp_setmoptions+0x111c Oct 3 19:27:26 borgdemon3 kernel: ip_ctloutput() at ip_ctloutput+0x16f Oct 3 19:27:26 borgdemon3 kernel: sosetopt() at sosetopt+0x3b Oct 3 19:27:26 borgdemon3 kernel: kern_setsockopt() at kern_setsockopt+0xa2 Oct 3 19:27:26 borgdemon3 kernel: setsockopt() at setsockopt+0x22 Oct 3 19:27:26 borgdemon3 kernel: syscall() at syscall+0x1ca Oct 3 19:27:26 borgdemon3 kernel: Xfast_syscall() at Oct 3 19:27:26 borgdemon3 kernel: Xfast_syscall+0xab Oct 3 19:27:26 borgdemon3 kernel: --- syscall (105, FreeBSD ELF64, setsockopt), rip = 0x800eb8ebc, rsp = 0x7fffffffeb18, rbp = 0x7fffffffeb90 --- --- lock-order-reversal ends here --- >Release-Note: >Audit-Trail: >Unformatted: