Date: Fri, 9 May 2014 13:59:37 +0300 From: Konstantin Belousov <kostikbel@gmail.com> To: Karl Pielorz <kpielorz_lst@tdx.co.uk> Cc: Daniel Eischen <deischen@freebsd.org>, freebsd-hackers@freebsd.org Subject: Re: Stuck CLOSED sockets / sshd / zombies... Message-ID: <20140509105937.GE74331@kib.kiev.ua> In-Reply-To: <45E85B0B7769CBE623165498@Mail-PC.tdx.co.uk> 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> <Pine.GSO.4.64.1404111320250.23129@sea.ntplx.net> <20140411183949.GX21331@kib.kiev.ua> <45E85B0B7769CBE623165498@Mail-PC.tdx.co.uk>
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On Fri, May 09, 2014 at 09:28:29AM +0100, Karl Pielorz wrote:
>=20
> --On 11 April 2014 21:39 +0300 Konstantin Belousov <kostikbel@gmail.com>=
=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
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