From owner-freebsd-hackers@FreeBSD.ORG Fri May 9 10:59:42 2014 Return-Path: Delivered-To: freebsd-hackers@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 ESMTPS id 42DCB8CC; Fri, 9 May 2014 10:59:42 +0000 (UTC) Received: from kib.kiev.ua (kib.kiev.ua [IPv6:2001:470:d5e7:1::1]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id D909D772; Fri, 9 May 2014 10:59:41 +0000 (UTC) Received: from tom.home (kostik@localhost [127.0.0.1]) by kib.kiev.ua (8.14.8/8.14.8) with ESMTP id s49AxbbQ018075; Fri, 9 May 2014 13:59:37 +0300 (EEST) (envelope-from kostikbel@gmail.com) DKIM-Filter: OpenDKIM Filter v2.8.3 kib.kiev.ua s49AxbbQ018075 Received: (from kostik@localhost) by tom.home (8.14.8/8.14.8/Submit) id s49AxbRt018074; Fri, 9 May 2014 13:59:37 +0300 (EEST) (envelope-from kostikbel@gmail.com) X-Authentication-Warning: tom.home: kostik set sender to kostikbel@gmail.com using -f Date: Fri, 9 May 2014 13:59:37 +0300 From: Konstantin Belousov To: Karl Pielorz Subject: Re: Stuck CLOSED sockets / sshd / zombies... Message-ID: <20140509105937.GE74331@kib.kiev.ua> References: <20140410184855.GP21331@kib.kiev.ua> <211BD03C086DDB1A07FDF036@Mail-PC.tdx.co.uk> <20140411131649.GR21331@kib.kiev.ua> <652B8CA4866C0B9E4650430B@Mail-PC.tdx.co.uk> <20140411141526.GT21331@kib.kiev.ua> <464979E8F6FCBD7EA7DAA38B@Mail-PC.tdx.co.uk> <20140411160628.GV21331@kib.kiev.ua> <20140411183949.GX21331@kib.kiev.ua> <45E85B0B7769CBE623165498@Mail-PC.tdx.co.uk> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="DRp5/Sds4nAqvQzf" Content-Disposition: inline In-Reply-To: <45E85B0B7769CBE623165498@Mail-PC.tdx.co.uk> User-Agent: Mutt/1.5.23 (2014-03-12) 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=3.4.0 X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on tom.home Cc: Daniel Eischen , freebsd-hackers@freebsd.org X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 09 May 2014 10:59:42 -0000 --DRp5/Sds4nAqvQzf Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, May 09, 2014 at 09:28:29AM +0100, Karl Pielorz wrote: >=20 > --On 11 April 2014 21:39 +0300 Konstantin Belousov = =20 > wrote: >=20 > > BTW, below is the updated patch with the workaround for sshd issue. > > > > diff --git a/secure/usr.sbin/sshd/Makefile b/secure/usr.sbin/sshd/Makef= ile > > index 4f730a9..b3231a4 100644 > > --- a/secure/usr.sbin/sshd/Makefile > > +++ b/secure/usr.sbin/sshd/Makefile > > @@ -57,6 +57,12 @@ CFLAGS+=3D -DNONE_CIPHER_ENABLED > > DPADD+=3D ${LIBCRYPT} ${LIBCRYPTO} ${LIBZ} > > LDADD+=3D -lcrypt -lcrypto -lz > > > > +# put the threading library last > > +.if ${MK_KERBEROS_SUPPORT} !=3D "no" > > +DPADD+=3D ${LIBPTHREAD} > > +LDADD+=3D -lpthread > > +.endif > > + > > .if defined(LOCALBASE) > > CFLAGS+=3D -DXAUTH_PATH=3D\"${LOCALBASE}/bin/xauth\" > > .endif >=20 > As far as I can see this hasn't been committed to 10/Stable yet? (or=20 > anywhere?) That means anything we build from 10/Stable is still going to= =20 > have this issue - where sshd hangs because "libthr wrapper thr_sighandler= ()=20 > for the signal handlers is not installed as the recepient of the kernel= =20 > signal, which prevents libthr locks for rtld from working properly." It was committed in r265313 to stable/10, and in r265314 to stable/9, although the later was not strictly neccessary. >=20 > This is causing us issues [as well as some other people running other too= ls=20 > - not fixed by this patch] - I would raise a PR - but it's not my patch! = :) >=20 > Thanks, >=20 > -Karl > =20 --DRp5/Sds4nAqvQzf Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (FreeBSD) iQIcBAEBAgAGBQJTbLUYAAoJEJDCuSvBvK1BUQsP/Auh89YBSkBZZ2vqgD7Fgx/B rxaalguYe5rt4pZSLu08H3JTOyIxXJq3byRgBguwP93dXvGpOjFq/vIvCbc/CayV GvGp+lsHiMA81gqSHt6tvg1La3/ucBDXpNJDTJl90JUxK3IjcBhN5RBusus6WJqw ft3iqdLRwvfSS56ShPRTOVTBbcHe2roIVdeMyiRwDiPKxA/io2hXsWgxfPqUJVrC 5tyzrfHNj3lDopqCpbm4Cy8XofcP6PjdIgR/9rZkjxRBbVDvbXg6YyYkNNbTWzAw EIDk4VMC6WryO4VwIg4uGnXqcAnKXB+Vobx8I0tWkJhZCpGH5doEBOSb/to/qDHB 1ap3WqZK3noPBZL5mhat5kOf4Kec9f1+ruVlrd83injiaTtP3c8nXFG4urG3OXX+ a2XBYb9j7DfgRKgWrJ+Y01sfiqWknRbQWKILhlp4CQK1CpwIz+HnmFmPa2BZ4JHM Nk/gCT9JCD1kVhrAX6CS8LVsDTURGegOXiktvEhg4xo7HVF7yWRWWspu7l3Emnve gI/uHq/hNL38omXH4Y2dqOsgDJ6Fph2RtqbPmOiJrgZ2lrZQJ4moQcfAsYDnZwtW nbvJApVvB+ff4WXzOAbrIFIa51+kPa8FWjT9QD1rFikp09Uq76G14n8nbBermsT6 frK8vQqAPlmjgWqOYlUX =Na74 -----END PGP SIGNATURE----- --DRp5/Sds4nAqvQzf--