From owner-freebsd-amd64@FreeBSD.ORG Fri Nov 8 11:33:48 2013 Return-Path: Delivered-To: freebsd-amd64@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 4375883D for ; Fri, 8 Nov 2013 11:33:48 +0000 (UTC) (envelope-from tg@gmplib.org) Received: from shell.gmplib.org (gmplib-02.nada.kth.se [130.237.222.242]) by mx1.freebsd.org (Postfix) with ESMTP id 080912369 for ; Fri, 8 Nov 2013 11:33:47 +0000 (UTC) Received: by shell.gmplib.org (Postfix, from userid 1001) id A6A712AC79; Fri, 8 Nov 2013 12:33:38 +0100 (CET) To: freebsd-amd64@freebsd.org Subject: Re: amd64/183397: Kernel panic at first incoming ssh References: <201310312350.r9VNo1gE056086@freefall.freebsd.org> <201311010921.57769.jhb@freebsd.org> <86y558ysnd.fsf@shell.gmplib.org> <201311011322.35869.jhb@freebsd.org> From: Torbjorn Granlund Sender: tg@gmplib.org Date: Fri, 08 Nov 2013 12:33:38 +0100 In-Reply-To: <201311011322.35869.jhb@freebsd.org> (John Baldwin's message of "Fri\, 1 Nov 2013 13\:22\:35 -0400") Message-ID: <86siv7m8kt.fsf@shell.gmplib.org> User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.3 (berkeley-unix) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Mailman-Approved-At: Fri, 08 Nov 2013 12:40:46 +0000 X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 08 Nov 2013 11:33:48 -0000 This bug is still present in BETA3. I am quite stuck now wrt my GNU MP development and FreeBSD. The m4 eval bug I reported in the spring of 2012 is in all 4 subsequent 8.x and 9.x releases which makes GMP disastrously miscompiled on BMI2 systems (e.g. Haswell). And FreeBSD 10 (tried A4, A5, B1, B2, B3) doesn't work well enough on my Haswell system to allow incoming or outgoing ssh connections without panicking. (Curiously enough, I can transfer files into the system without causing any kernel panic; I would have thought ftp and ssh looked the same from the kernel's perspective.) A home-brew kernel without HVM tolerates ssh connections. (I'll save time and will not test any more FreeBSD 10 pre-releases unless I get wind that this problem is solved.) --=20 Torbj=C3=B6rn