From owner-freebsd-current@freebsd.org Thu Sep 5 14:28:27 2019 Return-Path: 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 263DBE9061 for ; Thu, 5 Sep 2019 14:28:27 +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 46PNMs6WXdz3Llm; Thu, 5 Sep 2019 14:28:25 +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 x85ESHvC072905 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO); Thu, 5 Sep 2019 17:28:20 +0300 (EEST) (envelope-from kostikbel@gmail.com) DKIM-Filter: OpenDKIM Filter v2.10.3 kib.kiev.ua x85ESHvC072905 Received: (from kostik@localhost) by tom.home (8.15.2/8.15.2/Submit) id x85ESHfa072904; Thu, 5 Sep 2019 17:28:17 +0300 (EEST) (envelope-from kostikbel@gmail.com) X-Authentication-Warning: tom.home: kostik set sender to kostikbel@gmail.com using -f Date: Thu, 5 Sep 2019 17:28:17 +0300 From: Konstantin Belousov To: Cy Schubert Cc: Vladimir Zakharov , freebsd-current@freebsd.org Subject: Re: ntpd segfaults on start Message-ID: <20190905142817.GB2559@kib.kiev.ua> References: <20190905061251.rrip6635ebbfimsv@vzakharov> <20190905063354.qxecqjkafikdtdyq@vzakharov> <201909051307.x85D7MGs034053@slippy.cwsent.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <201909051307.x85D7MGs034053@slippy.cwsent.com> 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: 46PNMs6WXdz3Llm 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 [-2.95 / 15.00]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; DMARC_POLICY_SOFTFAIL(0.10)[gmail.com : No valid SPF, No valid DKIM,none]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; FREEMAIL_FROM(0.00)[gmail.com]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.10)[text/plain]; TAGGED_RCPT(0.00)[]; HAS_XAW(0.00)[]; R_SPF_SOFTFAIL(0.00)[~all]; IP_SCORE_FREEMAIL(0.00)[]; MIME_TRACE(0.00)[0:+]; TO_MATCH_ENVRCPT_SOME(0.00)[]; NEURAL_HAM_SHORT(-0.95)[-0.955,0]; TO_DN_SOME(0.00)[]; IP_SCORE(0.00)[ip: (-2.71), ipnet: 2001:470::/32(-4.45), asn: 6939(-3.14), country: US(-0.05)]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:6939, ipnet:2001:470::/32, country:US]; FREEMAIL_CC(0.00)[gmail.com]; RCVD_TLS_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.29 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: Thu, 05 Sep 2019 14:28:27 -0000 On Thu, Sep 05, 2019 at 06:07:22AM -0700, Cy Schubert wrote: > In message <20190905063354.qxecqjkafikdtdyq@vzakharov>, Vladimir Zakharov > write > s: > > > > --ply3axd74k44nuk3 > > Content-Type: text/plain; charset=utf-8 > > Content-Disposition: inline > > Content-Transfer-Encoding: quoted-printable > > > > On Thu, Sep 05, 2019, Vladimir Zakharov wrote: > > > Hello! > > >=20 > > > Accidentally it turned out that the ntpd does not start on boot. > > > Logs show that it core dumps: > > > 2019-09-05T08:38:43.588563+03:00 vzakharov ntpd 34934 - - ntpd 4.2.8p12-a= > > (1): Starting > > > 2019-09-05T08:38:43.588717+03:00 vzakharov kernel - - - Security policy l= > > oaded: MAC/ntpd (mac_ntpd) > > > 2019-09-05T08:38:43.718356+03:00 vzakharov kernel - - - pid 35074 (ntpd),= > > jid 0, uid 123: exited on signal 11 > > >=20 > > > Not sure how long does it happen. ktrace and gdb points to `setrlimit` > > > call. Clean rebuild has no effect. Does anyone have any idea what the > > > problem could be? > > > > Accidental insight after sending initial mail: I've disabled > > ASLR related sysctls, and now ntpd starts and runs again. > > # grep aslr /boot/loader.conf > > kern.elf32.aslr.enable=3D0 > > kern.elf64.aslr.enable=3D0 > > # service ntpd status > > ntpd is running as pid 30528. > > I'll take a look at this. When you get a chance can you open a PR for this > and assign the ticket to me, please. See the thread 'ntpd doesn't like ASLR on stable/12 post-r350672' on stable. Read it to the end.