From owner-freebsd-net@FreeBSD.ORG Mon Jul 16 10:32:36 2012 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id F25811065688 for ; Mon, 16 Jul 2012 10:32:36 +0000 (UTC) (envelope-from andrey@zonov.org) Received: from mail-ee0-f54.google.com (mail-ee0-f54.google.com [74.125.83.54]) by mx1.freebsd.org (Postfix) with ESMTP id 7E61A8FC16 for ; Mon, 16 Jul 2012 10:32:36 +0000 (UTC) Received: by eekb47 with SMTP id b47so129623eek.13 for ; Mon, 16 Jul 2012 03:32:35 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:subject :content-type:content-transfer-encoding:x-gm-message-state; bh=ws9ezNNIrAAltWfvaFN7GV3WWXvEXqkad6TeErLATEM=; b=ThfpUNNXTdOwjhibtKWDdzfyKwuHKx8J0WBFatMBgy3sqZz9y4DEPCxB/EjNa4NoJw p6MqgNUzDkvof44zudoEoRV3RGD+BKH6Z3ZkipD+9D6BGfHosSV3p3CBZA80CydTMoQH XufZ08EEKLr53sR2DB370iEMjzN9mq0E/Z5FFA7utTA033Qzq5ltFTgrkOFHXCj9otcz u9OZ53ekYmlVhUZflgVExT0ETW0rFGFERR8HhTHzzZCwmN07i+bjyf5y8SuwtECR8MXs +/ZwVyxr9UeSHDPnZHQmtX7eba33+mShxuawcRUDWGNte2hR376NBNDKWRZ3x5AnPHaS or9g== Received: by 10.14.204.70 with SMTP id g46mr8490914eeo.15.1342434755326; Mon, 16 Jul 2012 03:32:35 -0700 (PDT) Received: from dhcp170-225-red.yandex.net ([2a02:6b8:0:401:706d:8ec4:2f1c:e819]) by mx.google.com with ESMTPS id j4sm17513792eeo.11.2012.07.16.03.32.34 (version=SSLv3 cipher=OTHER); Mon, 16 Jul 2012 03:32:34 -0700 (PDT) Message-ID: <5003EDC4.3050100@zonov.org> Date: Mon, 16 Jul 2012 14:32:36 +0400 From: Andrey Zonov User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:13.0) Gecko/20120614 Thunderbird/13.0.1 MIME-Version: 1.0 To: "freebsd-net@freebsd.org" Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Gm-Message-State: ALoCoQnFYs9kBMir1iWvr9cbSEz1ijIog6GqJ3XA9y+bafX1s6gKHDHEit7bJleENq7GCZ2hPZWH Subject: panic: negative refcount 0xfffffe0007f1b4d4 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 16 Jul 2012 10:32:37 -0000 Hi, I've got about 30 machines which panic sometimes in different places but with the same panic message: "negative refcount 0xfffffe0007f1b4d4". They are running under 9.0-STABLE@r234600M. Trace looks like this: db:0:kdb.enter.panic> bt Tracing pid 0 tid 100037 td 0xfffffe00074918e0 kdb_enter() at kdb_enter+0x3b panic() at panic+0x180 ifa_free() at ifa_free+0x5d ip_input() at ip_input+0x559 netisr_dispatch_src() at netisr_dispatch_src+0x152 ether_demux() at ether_demux+0x18d ether_nh_input() at ether_nh_input+0x285 netisr_dispatch_src() at netisr_dispatch_src+0x152 em_rxeof() at em_rxeof+0x1a6 em_handle_que() at em_handle_que+0x4c taskqueue_run_locked() at taskqueue_run_locked+0x93 taskqueue_thread_loop() at taskqueue_thread_loop+0x3e fork_exit() at fork_exit+0x135 fork_trampoline() at fork_trampoline+0xe --- trap 0, rip = 0, rsp = 0xffffff8000323cb0, rbp = 0 --- or this: db:0:kdb.enter.panic> bt Tracing pid 3502 tid 100175 td 0xfffffe0007fb1470 kdb_enter() at kdb_enter+0x3b panic() at panic+0x180 ifa_free() at ifa_free+0x5d ip_output() at ip_output+0x6ab tcp_output() at tcp_output+0xe40 tcp_usr_connect() at tcp_usr_connect+0x109 soconnect() at soconnect+0x13f kern_connect() at kern_connect+0xde sys_connect() at sys_connect+0x41 amd64_syscall() at amd64_syscall+0x348 Xfast_syscall() at Xfast_syscall+0xf7 --- syscall (98, FreeBSD ELF64, sys_connect), rip = 0x5ecaa93c, rsp = 0x5f99ec78, rbp = 0x5f349c10 --- and I have more. Is this known issue? If it is not, I've got textdumps and can send to anyone who wants to help me. Thanks in advance. -- Andrey Zonov