Date: Mon, 5 Aug 2019 22:32:11 +0200 (CEST) From: =?UTF-8?Q?Trond_Endrest=C3=B8l?= <trond.endrestol@ximalas.info> To: freebsd-current@freebsd.org Cc: Konstantin Belousov <kostikbel@gmail.com> Subject: Re: r350484 and ASLR enabled - init died (signal 6, exit 0) Message-ID: <alpine.BSF.2.21.99999.352.1908052219550.31116@enterprise.ximalas.info> In-Reply-To: <20190805192305.GC2731@kib.kiev.ua> References: <alpine.BSF.2.21.99999.352.1908051436050.31116@enterprise.ximalas.info> <20190805130255.GA1121@albert.catwhisker.org> <alpine.BSF.2.21.99999.352.1908051947580.31116@enterprise.ximalas.info> <20190805192305.GC2731@kib.kiev.ua>
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On Mon, 5 Aug 2019 22:23+0300, Konstantin Belousov wrote: > On Mon, Aug 05, 2019 at 08:10:43PM +0200, Trond Endrestøl wrote: > > > I'm going home and see if VBox 6.0.10 exhibits the same behaviour. > > Try r350608. There was a mis-merge in the committed patch (more serious > part), and some limits were not applied, which I did not see in my > testing due to the mismatch between stock FreeBSD and my testing > environment. I'm now at r350609, and booting with ASLR enabled works in VBox. I'll try the Citrix Hypervisor VM tomorrow Thank you, Konstantin. -- Trond. From owner-freebsd-current@freebsd.org Tue Aug 6 07:00:32 2019 Return-Path: <owner-freebsd-current@freebsd.org> Delivered-To: freebsd-current@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 5BC8FBAEF0 for <freebsd-current@mailman.nyi.freebsd.org>; Tue, 6 Aug 2019 07:00:32 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from mailman.nyi.freebsd.org (unknown [127.0.1.3]) by mx1.freebsd.org (Postfix) with ESMTP id 462lrw1Bvcz3FS4 for <freebsd-current@freebsd.org>; Tue, 6 Aug 2019 07:00:32 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: by mailman.nyi.freebsd.org (Postfix) id 2702CBAEEF; Tue, 6 Aug 2019 07:00:32 +0000 (UTC) Delivered-To: current@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 25A60BAEEC for <current@mailman.nyi.freebsd.org>; Tue, 6 Aug 2019 07:00:32 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from kib.kiev.ua (kib.kiev.ua [IPv6:2001:470:d5e7:1::1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 462lrv1N5vz3FS3 for <current@freebsd.org>; Tue, 6 Aug 2019 07:00:30 +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 x7670MBV085984 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO); Tue, 6 Aug 2019 10:00:25 +0300 (EEST) (envelope-from kostikbel@gmail.com) DKIM-Filter: OpenDKIM Filter v2.10.3 kib.kiev.ua x7670MBV085984 Received: (from kostik@localhost) by tom.home (8.15.2/8.15.2/Submit) id x7670MMw085979; Tue, 6 Aug 2019 10:00:22 +0300 (EEST) (envelope-from kostikbel@gmail.com) X-Authentication-Warning: tom.home: kostik set sender to kostikbel@gmail.com using -f Date: Tue, 6 Aug 2019 10:00:22 +0300 From: Konstantin Belousov <kostikbel@gmail.com> To: current@freebsd.org Subject: NIS maps value length increase to 16m Message-ID: <20190806070022.GE2731@kib.kiev.ua> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.12.1 (2019-06-15) X-Spam-Status: No, score=-1.0 required=5.0 tests=ALL_TRUSTED,BAYES_00, DKIM_ADSP_CUSTOM_MED,FORGED_GMAIL_RCVD,FREEMAIL_FROM, NML_ADSP_CUSTOM_MED autolearn=no autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on tom.home X-Rspamd-Queue-Id: 462lrv1N5vz3FS3 X-Spamd-Bar: - Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=fail reason="No valid SPF, No valid DKIM" header.from=gmail.com (policy=none); spf=softfail (mx1.freebsd.org: 2001:470:d5e7:1::1 is neither permitted nor denied by domain of kostikbel@gmail.com) smtp.mailfrom=kostikbel@gmail.com X-Spamd-Result: default: False [-1.99 / 15.00]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-0.999,0]; RCVD_TLS_ALL(0.00)[]; FROM_HAS_DN(0.00)[]; FREEMAIL_FROM(0.00)[gmail.com]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_GOOD(-0.10)[text/plain]; TO_DN_NONE(0.00)[]; HAS_XAW(0.00)[]; R_SPF_SOFTFAIL(0.00)[~all:c]; RCPT_COUNT_ONE(0.00)[1]; IP_SCORE_FREEMAIL(0.00)[]; IP_SCORE(0.00)[ip: (-2.67), ipnet: 2001:470::/32(-4.50), asn: 6939(-2.92), country: US(-0.05)]; NEURAL_HAM_SHORT(-0.99)[-0.995,0]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:6939, ipnet:2001:470::/32, country:US]; RCVD_COUNT_TWO(0.00)[2]; FREEMAIL_ENVFROM(0.00)[gmail.com]; DMARC_POLICY_SOFTFAIL(0.10)[gmail.com : No valid SPF, No valid DKIM,none] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussions about the use of FreeBSD-current <freebsd-current.freebsd.org> List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-current>, <mailto:freebsd-current-request@freebsd.org?subject=unsubscribe> List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current/>; List-Post: <mailto:freebsd-current@freebsd.org> List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help> List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-current>, <mailto:freebsd-current-request@freebsd.org?subject=subscribe> X-List-Received-Date: Tue, 06 Aug 2019 07:00:32 -0000 Apparently, NIS is still in use even in large enterprise environments, not everything was consumed by LDAP. And there, Linux added a quirk very long time ago, in 2013 at least, see https://marc.info/?l=fedora-extras-commits&m=136675043230000&w=2 What they did is the increase of the longest allowed key value (and key name) in a map, from Sun-defined 1024 to 16M. This change is backward-compatible, in the sense that either old NIS master or old NIS client are protocol-compatible with the updated masters and clients, assuming that the maps only export values limited to 1024 bytes in length. On the other hand, a new client can use much larger values. This works because values are specified in yp XDR as opaque variadic-length arrays. An example where this is useful is the environment with very large automount maps exported by NIS. For obvious reasons, FreeBSD cannot function in such settings. I wrote the patch to bump the limit in FreeBSD NIS implementation, both in client and in servers, see https://reviews.freebsd.org/D20900 If you are interested in the NIS code, please review. I want to commit the change into HEAD in approximately two weeks from now.
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