From owner-freebsd-stable@FreeBSD.ORG Mon Jul 15 14:26:54 2013 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id AD76AAFE for ; Mon, 15 Jul 2013 14:26:54 +0000 (UTC) (envelope-from mjguzik@gmail.com) Received: from mail-wg0-x22f.google.com (mail-wg0-x22f.google.com [IPv6:2a00:1450:400c:c00::22f]) by mx1.freebsd.org (Postfix) with ESMTP id 46A59DD6 for ; Mon, 15 Jul 2013 14:26:54 +0000 (UTC) Received: by mail-wg0-f47.google.com with SMTP id l18so10066047wgh.26 for ; Mon, 15 Jul 2013 07:26:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=date:from:to:cc:subject:message-id:references:mime-version :content-type:content-disposition:content-transfer-encoding :in-reply-to:user-agent; bh=c1Im6WUA8R2KdwqxR6fsGWHgbDd797JclhGXYdXIcgc=; b=nogOq7NepbTrzSg8dq/NiR7G1ccRrFViJMRbnHvxOG+g1moYLNtr16p4ZsW5oXNIMK fvyqIsJqFLxzwStTO/2IGIpZ/r4Qyf7p6tTQlpccQMj7L3DtAjm/QHGTIa1Jp3LWyRPg eo6eI8xxlezSFj2+pbvpkUnBBReI8RrxclmLHY2q4Zl627npL8bkqQzUQnhyCtxh7Qiu RfNK92H6FARxu2n9ejEoNrk59lDQqL/6MKycqtm3VXsYNN6i9FH9ocu7Ov4p0DL32y6l DGVADrozNaxtetyk7+79t6u5hlEvNV3OMuKdb2NsrbQrg2JwucpUT6GzO1S9B5VzQFvf lvvg== X-Received: by 10.180.75.80 with SMTP id a16mr9246984wiw.3.1373898413493; Mon, 15 Jul 2013 07:26:53 -0700 (PDT) Received: from dft-labs.eu (n1x0n-1-pt.tunnel.tserv5.lon1.ipv6.he.net. [2001:470:1f08:1f7::2]) by mx.google.com with ESMTPSA id b14sm21275131wic.8.2013.07.15.07.26.51 for (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Mon, 15 Jul 2013 07:26:52 -0700 (PDT) Date: Mon, 15 Jul 2013 16:26:47 +0200 From: Mateusz Guzik To: Patrick Lamaiziere Subject: Re: (9.2) panic under disk load (gam_server / knlist_remove_kq) Message-ID: <20130715142647.GA9293@dft-labs.eu> References: <20130714115953.1afd6e90@davenulle.org> <20130714163353.2367a6a4@davenulle.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20130714163353.2367a6a4@davenulle.org> User-Agent: Mutt/1.5.21 (2010-09-15) Cc: freebsd-stable@freebsd.org X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 15 Jul 2013 14:26:54 -0000 On Sun, Jul 14, 2013 at 04:33:53PM +0200, Patrick Lamaiziere wrote: > Le Sun, 14 Jul 2013 11:59:53 +0200, > Patrick Lamaiziere a écrit : > > Hello, > > > 9.2 PRERELEASE (today) / amd64 > > > > Hello, > > > > I'm seeing a panic while trying to build a poudriere repository. > > > > As far I can see it always happens when gam_server is started (ie > > xfce is running) and under disk load (poudriere bulk build) : > > (That is something new, the box was pretty stable) > > > > the complete crash dump (core.0.txt) is here: > > http://user.lamaiziere.net/patrick/panic_gam_server.txt > > With WITNESS and ASSERTION on, I see a warning that looks related : > > Jul 14 16:23:29 roxette kernel: WARNING: destroying knlist w/ knotes on it! > > and the box panics just after this. > can you switch that printf to a panic and paste backtrace? -- Mateusz Guzik