From owner-freebsd-current@freebsd.org Sat Jun 25 15:46:38 2016 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 9EE78B81CCE for ; Sat, 25 Jun 2016 15:46:38 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from kib.kiev.ua (kib.kiev.ua [IPv6:2001:470:d5e7:1::1]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 1D7851EAF; Sat, 25 Jun 2016 15:46:37 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from tom.home (kib@localhost [127.0.0.1]) by kib.kiev.ua (8.15.2/8.15.2) with ESMTPS id u5PFkXCJ088999 (version=TLSv1 cipher=DHE-RSA-CAMELLIA256-SHA bits=256 verify=NO); Sat, 25 Jun 2016 18:46:33 +0300 (EEST) (envelope-from kostikbel@gmail.com) DKIM-Filter: OpenDKIM Filter v2.10.3 kib.kiev.ua u5PFkXCJ088999 Received: (from kostik@localhost) by tom.home (8.15.2/8.15.2/Submit) id u5PFkXaV088998; Sat, 25 Jun 2016 18:46:33 +0300 (EEST) (envelope-from kostikbel@gmail.com) X-Authentication-Warning: tom.home: kostik set sender to kostikbel@gmail.com using -f Date: Sat, 25 Jun 2016 18:46:33 +0300 From: Konstantin Belousov To: Tijl Coosemans Cc: "O. Hartmann" , freebsd-current@freebsd.org Subject: Re: HEADS UP: caution required with updates using custom kernels Message-ID: <20160625154633.GC38613@kib.kiev.ua> References: <20160624060019.5e650ad9.ohartman@zedat.fu-berlin.de> <20160624155111.GB20770@spindle.one-eyed-alien.net> <330789230754140e38fb527973e23405@ultimatedns.net> <20160624225034.GC20770@spindle.one-eyed-alien.net> <20160625070238.GG38613@kib.kiev.ua> <20160625131806.14fa4799.ohartman@zedat.fu-berlin.de> <20160625113544.GS38613@kib.kiev.ua> <20160625171714.7e318044.ohartman@zedat.fu-berlin.de> <20160625152645.GB38613@kib.kiev.ua> <20160625173531.104842ac@kalimero.tijl.coosemans.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160625173531.104842ac@kalimero.tijl.coosemans.org> User-Agent: Mutt/1.6.1 (2016-04-27) X-Spam-Status: No, score=-2.0 required=5.0 tests=ALL_TRUSTED,BAYES_00, DKIM_ADSP_CUSTOM_MED,FREEMAIL_FROM,NML_ADSP_CUSTOM_MED autolearn=no autolearn_force=no version=3.4.1 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on tom.home X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.22 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, 25 Jun 2016 15:46:38 -0000 On Sat, Jun 25, 2016 at 05:35:31PM +0200, Tijl Coosemans wrote: > On Sat, 25 Jun 2016 18:26:45 +0300 Konstantin Belousov wrote: > > On Sat, Jun 25, 2016 at 05:17:14PM +0200, O. Hartmann wrote: > >> Is there a way to salvage the situation without relying on "customized" > >> third party kernels? > >> > >> I usually use /bin/csh - so this might be of use. > > > > You need either kernel with COMPAT_FREEBSD10, or simpler, newer libc. > > You could take that libc anywhere, e.g. from the ALPHA5 binaries recently > > uploaded. There is no way to fix build with the combination of bits you > > have at present self-hosting. > > Can't he boot kernel.old? Presumably this was tried. BTW, this situation is a stellar argument to finally switch toolchain to dynamic linking. For dynamically-linked make, LD_PRELOADing a dso like this would solve the problem int pipe(int[] fds) { return (pipe2(fds, 0)); }