From owner-freebsd-current@FreeBSD.ORG Mon Jul 1 09:18:24 2013 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id 11229B5F; Mon, 1 Jul 2013 09:18:24 +0000 (UTC) (envelope-from koobs.freebsd@gmail.com) Received: from mail-pa0-x22a.google.com (mail-pa0-x22a.google.com [IPv6:2607:f8b0:400e:c03::22a]) by mx1.freebsd.org (Postfix) with ESMTP id DC4251BDA; Mon, 1 Jul 2013 09:18:23 +0000 (UTC) Received: by mail-pa0-f42.google.com with SMTP id rl6so4819704pac.15 for ; Mon, 01 Jul 2013 02:18:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:reply-to:user-agent:mime-version:to:cc:subject :references:in-reply-to:x-enigmail-version:content-type :content-transfer-encoding; bh=4N2I9Ja+uUWeWts+D8vaWEgXQTKTKRvQxq3NwTMbbuo=; b=oRGq9WIAUQd5R+T+OthfCzAc5rcni5brwwl3l4nmPca+6hKeturTatY5xvV39cQk9t 0jpI1hQCJK4gfU1BJ3Gz75Jc0dkmUF1TDkeEQ8MibiWsLw2VI5ZH6aQaMwxybfqnUrrL 3WBr48/bvAmEbnpMl6BsdS5m4EAb4v8AWAqR5aPBXZqEKCRXDOTpa3CXphy66bLhvgmr b00YYJ/mAsCQsXcHb8ZAeDhJXSRvDAwffxx028iJ+G5DRJNhPxdjp6bnaIdFCwyHDR7R 4wu3pyyC8ksS/oyC++/+IR3Bwk595asZZeu/QLLdVFWD6LlcGFMnTBR7ishnQC+pvU5d hFxQ== X-Received: by 10.66.145.34 with SMTP id sr2mr22850569pab.94.1372670303637; Mon, 01 Jul 2013 02:18:23 -0700 (PDT) Received: from [192.168.1.7] (ppp59-167-128-11.static.internode.on.net. [59.167.128.11]) by mx.google.com with ESMTPSA id fn9sm11524175pab.2.2013.07.01.02.18.21 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Mon, 01 Jul 2013 02:18:22 -0700 (PDT) Message-ID: <51D14959.3000306@FreeBSD.org> Date: Mon, 01 Jul 2013 19:18:17 +1000 From: Kubilay Kocak User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/20130509 Thunderbird/17.0.6 MIME-Version: 1.0 To: Mateusz Guzik Subject: Re: r248583 Kernel panic: negative refcount 0xfffffe0031b59168 References: <51CFDC86.2040506@FreeBSD.org> <20130630111836.GB22492@dft-labs.eu> <20130701052621.GA1349@reks> In-Reply-To: <20130701052621.GA1349@reks> X-Enigmail-Version: 1.5.1 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: Gleb Kurtsou , freebsd-current@FreeBSD.org X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list Reply-To: koobs@FreeBSD.org List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 01 Jul 2013 09:18:24 -0000 On 1/07/2013 3:26 PM, Gleb Kurtsou wrote: > On (30/06/2013 13:18), Mateusz Guzik wrote: >> On Sun, Jun 30, 2013 at 05:21:42PM +1000, Kubilay Kocak wrote: >>> I'm seeing what I believe is related panic, reliably being generated by >>> the Python regression test suite on a newly created FreeBSD 10-CURRENT >>> buildbot. >>> >>> Symptoms first seen in an freebsd.org FTP snapshot dated "Thu May 30 >>> 20:01:46 UTC 2013" and also reproducible on a freshly updated r252400 >>> >>> It is additionally reproducible after checking out pure upstream python >>> sources, using the following steps: >>> >>> hg clone http://hg.python.org/cpython >>> cd cpython && configure && make buildbottest >>> >>> An interesting possible correlation is that it seems to drop out >>> during/around "test_socket" >>> >> >> Turns out the bug is quite funny ;) > > Patch fixes chrome for me. > > Thanks! > >> +1 Python regression test no longer cause a panic after applying this. Fantastic work Mateusz, thank you. -- Kubilay Kocak