From owner-freebsd-hackers@FreeBSD.ORG Tue Dec 15 19:40:08 2009 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id DEA66106566C for ; Tue, 15 Dec 2009 19:40:08 +0000 (UTC) (envelope-from linda.messerschmidt@gmail.com) Received: from mail-ew0-f226.google.com (mail-ew0-f226.google.com [209.85.219.226]) by mx1.freebsd.org (Postfix) with ESMTP id 7984B8FC12 for ; Tue, 15 Dec 2009 19:40:08 +0000 (UTC) Received: by ewy26 with SMTP id 26so233021ewy.3 for ; Tue, 15 Dec 2009 11:40:07 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:date:message-id:subject :from:to:content-type; bh=bVcgLrh9UoRkPuNA2YFI+TIthF83RZkmxgmhA0V23Kw=; b=CC4mLrL3Fm5vMTfs1zlG3V4te4TiW8MMKhNJilFD6Gd5lVnzT2PyrRQasPXHxy2/tR 9vKoGbuyLvO2wZFoXcg2RcJAqj+luWgd40uNBRHmREtzlJ7pmR5xZV+X6ILI/hmn7Q1q hozxI+5B/Su68SSh0THChROUral3+WOrc17F8= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=GJEJAbLBVKUZeQc5ldfayzCtbDrRGKkO2Nvki91UTSy3junYLuXTzOTS6T3v7JaPn1 6C7AxBGB+LqvQqYHGsxYCZ2RRbfGnrhbFWe9N5B+/iQXS8P0La+yvDTEO+8fY0nzt9Bo DX6lxShOuvEgyZ1qs+hyrwTrBZV4jshmxq5UI= MIME-Version: 1.0 Received: by 10.216.88.80 with SMTP id z58mr298319wee.116.1260906007155; Tue, 15 Dec 2009 11:40:07 -0800 (PST) Date: Tue, 15 Dec 2009 14:40:07 -0500 Message-ID: <237c27100912151140o1b227bb1pdaa65f5aee13ab5b@mail.gmail.com> From: Linda Messerschmidt To: freebsd-hackers@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 Subject: 8.0-RELEASE-p1 Panic "panic: sbdrop" X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 15 Dec 2009 19:40:08 -0000 This is a new one on me: panic: sbdrop cpuid = 3 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2a panic() at panic+0x182 sbdrop_internal() at sbdrop_internal+0x323 soisdisconnected() at soisdisconnected+0xbe tcp_close() at tcp_close+0x45 tcp_do_segment() at tcp_do_segment+0x122f tcp_input() at tcp_input+0xc92 ip_input() at ip_input+0xac netisr_dispatch_src() at netisr_dispatch_src+0x7e ether_demux() at ether_demux+0x15d ether_input() at ether_input+0x17b em_rxeof() at em_rxeof+0x287 em_handle_rxtx() at em_handle_rxtx+0x2f taskqueue_run() at taskqueue_run+0x93 taskqueue_thread_loop() at taskqueue_thread_loop+0x46 fork_exit() at fork_exit+0x118 fork_trampoline() at fork_trampoline+0xe --- trap 0, rip = 0, rsp = 0xffffff8000117d30, rbp = 0 --- This machine runs squid as a reverse proxy, and this has happened a couple of times now in the past day. Unfortunately it's a production machine, so we'll have to go back to 7.2. I can probably leave it as-is for 24 hours or so if anybody wants me to check something, but it doesn't have a dump or a debug kernel and I unfortunately can't put it back in production to provoke another crash. :( But I wanted to at least report this before we did in case it's useful to anyone.