From owner-freebsd-current@FreeBSD.ORG Sat Nov 6 23:05:52 2010 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 95175106564A for ; Sat, 6 Nov 2010 23:05:52 +0000 (UTC) (envelope-from pluknet@gmail.com) Received: from mail-qy0-f175.google.com (mail-qy0-f175.google.com [209.85.216.175]) by mx1.freebsd.org (Postfix) with ESMTP id 4E83E8FC0C for ; Sat, 6 Nov 2010 23:05:51 +0000 (UTC) Received: by qyk4 with SMTP id 4so101341qyk.13 for ; Sat, 06 Nov 2010 16:05:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:cc:content-type; bh=8yNaD3CVhd1OwSs4RdwHWWsUFsijHBprv5g2o2utCwE=; b=foUG1sBvoEyORV9pPF609u7g0/aphpOv3wEt13juZs6SuAMO040G1+5pvYgvWS0A/l cUB9KcXGxKZUSS3D+TchwarqsdyS3EQYhHKf0Vw+VX1nYtcNxSLYIx+AjjlSU7PS+8xr tbAiIf8uBb6qhd9BT0Nkc4rISlj/u/+6E6DSM= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=hKHYatLnYS4N2SLZGKs8OkGrjcyQ3wlvN65lvC5AUbuqEzu5JlM1mHpRlWzD37L+5m I4IClf8wI3i160uHD1esmHo4X7wNlCUn2YC062x6frV7VhLXD4VX/bjXcwvtKGjdD1Vo sqIKURrVGfPKP3YjfYggzD92X/+WcL9Vw3sN0= MIME-Version: 1.0 Received: by 10.224.197.9 with SMTP id ei9mr2483882qab.317.1289082888926; Sat, 06 Nov 2010 15:34:48 -0700 (PDT) Received: by 10.229.69.135 with HTTP; Sat, 6 Nov 2010 15:34:48 -0700 (PDT) In-Reply-To: <20101106172725.00004b20@unknown> References: <20101106172725.00004b20@unknown> Date: Sun, 7 Nov 2010 01:34:48 +0300 Message-ID: From: Sergey Kandaurov To: Bruce Cran Content-Type: text/plain; charset=ISO-8859-1 Cc: bzeeb+freebsd+lor@zabbadoz.net, current@freebsd.org Subject: Re: siftr LOR: PFil hook read/write mutex vs. tcp X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 06 Nov 2010 23:05:52 -0000 On 6 November 2010 20:27, Bruce Cran wrote: > 1st 0xffffffff80990308 PFil read/write mutex (PFil hook read/write > mutex @ /usr/src/head/sys/net/pfil.c:77 > 2nd 0xffffffff80991528 tcp (tcp) > @ /usr/src/head/sys/modules/siftr/../../netinet/siftr.c:702 > KDB: stack backtrace: > db_trace_self_wrapper() > kdb_backtrace() > _witness_debugger() > witness_checkorder() > _rw_rlock() > siftr_chkpkt() > pfil_run_hooks() > ip_input() > netisr_dispatch_src() > ether_demux() > ether_input() > msk_handle_events() > msk_intr() > intr_event_execute_handlers() > ithread_loop() > fork_exit() > fork_trampoline() > --- trap 0, rip = 0, rsp = 0xffffff8123559cf0, rbp = 0 --- > AFAIK, this LOR is documented in siftr(4) as harmless. -- wbr, pluknet