From owner-freebsd-virtualization@FreeBSD.ORG Tue Nov 12 03:02:05 2013 Return-Path: Delivered-To: freebsd-virtualization@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 786162FB; Tue, 12 Nov 2013 03:02:05 +0000 (UTC) Received: from mail-wg0-x22e.google.com (mail-wg0-x22e.google.com [IPv6:2a00:1450:400c:c00::22e]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id E1F6339CB; Tue, 12 Nov 2013 03:02:04 +0000 (UTC) Received: by mail-wg0-f46.google.com with SMTP id x12so964631wgg.13 for ; Mon, 11 Nov 2013 19:02:02 -0800 (PST) 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:in-reply-to:user-agent; bh=opjSfhJ/JucR8+28uShqpW91JlXrf1yufjva7yraYNY=; b=D0iEMx2aEfEJav0WDM/H8gZkKai5KA6ACLKNzflP0QSWp3YHRkAZdtUAKpOejuw7vu 3Y/XQH8rf3+w1nS9d2vjPKff72VI7mcWZJJwGZfmGcxe1yUTi6ZJZxHL0AWuZIrzEUjc nDWr5oT7mbQ8ieNeizYwTLDv95NePjGGQnpVUANH26MP/3q6xqEcqaqPJ7xk41Lzi28y KqTjzpQPpPDhVf7W7r5cVZ1WJDGEb3frqXLqvqY4837WOJeFk8r2A18AENqZZKPQEE20 O+dxznB1AkO3m8WygkOsx+UlBwy+31BZ/ANNWpz1O8pXcYKLNZ5lGQD8kfIeORvKzxp+ f3Yg== X-Received: by 10.180.211.237 with SMTP id nf13mr14338011wic.55.1384225319434; Mon, 11 Nov 2013 19:01:59 -0800 (PST) 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 gm2sm6246423wib.4.2013.11.11.19.01.57 for (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Mon, 11 Nov 2013 19:01:58 -0800 (PST) Date: Tue, 12 Nov 2013 04:01:55 +0100 From: Mateusz Guzik To: Julian Elischer Subject: Re: Running `sysctl -a` causes crash (Hyper-V) Message-ID: <20131112030154.GA29757@dft-labs.eu> References: <52814D25.1050603@freebsd.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <52814D25.1050603@freebsd.org> User-Agent: Mutt/1.5.21 (2010-09-15) Cc: freebsd-virtualization@freebsd.org X-BeenThere: freebsd-virtualization@freebsd.org X-Mailman-Version: 2.1.16 Precedence: list List-Id: "Discussion of various virtualization techniques FreeBSD supports." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 12 Nov 2013 03:02:05 -0000 On Mon, Nov 11, 2013 at 01:33:25PM -0800, Julian Elischer wrote: > On 11/11/13, 7:49 AM, Pavel Timofeev wrote: > >Great, it helped! Thanks a lot! > > the suggested change suggests fragile code. It should be able to > handle unexpected input.. Indeed, I already suggested Sergey placing a compile time assertion to make sure vm_guest range is covered. > > > >2013/11/11 Sergey Kandaurov : > >>On 11 November 2013 18:13, Pavel Timofeev wrote: > >>>[...] > >>>(kgdb) p vm_guest > >>>$1 = 3 > >>>Current language: auto; currently minimal > >>>(kgdb) > >>> > >>What if you try this change? > >> > >>Index: sys/kern/subr_param.c > >>=================================================================== > >>--- sys/kern/subr_param.c (revision 257695) > >>+++ sys/kern/subr_param.c (working copy) > >>@@ -153,6 +153,7 @@ > >> "none", > >> "generic", > >> "xen", > >>+ "hv", > >> NULL > >> }; > >_______________________________________________ > >freebsd-virtualization@freebsd.org mailing list > >http://lists.freebsd.org/mailman/listinfo/freebsd-virtualization > >To unsubscribe, send any mail to "freebsd-virtualization-unsubscribe@freebsd.org" > > > > _______________________________________________ > freebsd-virtualization@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-virtualization > To unsubscribe, send any mail to "freebsd-virtualization-unsubscribe@freebsd.org" -- Mateusz Guzik