Date: Sun, 4 Oct 2009 18:47:56 +0200 From: Andre Albsmeier <Andre.Albsmeier@siemens.com> To: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net> Cc: jhell <jhell@DataIX.net>, stable@freebsd.org, Andre Albsmeier <Andre.Albsmeier@siemens.com> Subject: Re: security.bsd.map_at_zero=0 problem with samba33 (including solution) Message-ID: <20091004164756.GA6021@curry.mchp.siemens.de> In-Reply-To: <20091003215821.V26486@maildrop.int.zabbadoz.net> References: <20091003184220.GA2620@curry.mchp.siemens.de> <alpine.BSF.2.00.0910031624080.28602@dimension.5p.local> <20091003212308.GA3122@curry.mchp.siemens.de> <20091003215821.V26486@maildrop.int.zabbadoz.net>
next in thread | previous in thread | raw e-mail | index | archive | help
On Sat, 03-Oct-2009 at 22:27:39 +0000, Bjoern A. Zeeb wrote: > On Sat, 3 Oct 2009, Andre Albsmeier wrote: > > Hi, > > > On Sat, 03-Oct-2009 at 16:27:32 -0400, jhell wrote: > >> On Sat, 3 Oct 2009 14:42 -0000, Andre.Albsmeier wrote: > >> > >>> FYI, > >>> > >>> after setting security.bsd.map_at_zero to 0 on 7.2-STABLE all > >>> samba33 programmes did abort() immediately after start. The > >>> solution was to use > >>> > >>> CONFIGURE_ARGS+= --disable-pie > >>> > >>> -Andre > >>> > >> > >> To add an additional note samba33 even when not running (not enabled by a rcvar) > >> also runs a tdbcleanup routine on shutdown and/or start that also does > >> abort(). > > > > Yes, every samba programme is linked with -pie per default (so > > all abort()). > > > Thanks for reporting the issue. People are aware of the problem now > and we'll try to present a solution within the next days for better > position-independent executable (PIE) handling. > > Meanwhile there are multiple solutions for people affected: > > (1) recompile the port; but as more than just samba might be affected > and we generally do not want to flip the pie switch everywhere that's > probably only a temporary, private solution. I'll stick to this since I am happy about having the map_at_zero option and want to continue to try it out on 7.2-STABLE. And I see now reason why samba has to be linked with -pie (without -pie it is also 4% smaller). -Andre -- "I think there is a world market for maybe five computers." - Thomas Watson, chairman of IBM, 1943
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20091004164756.GA6021>