Date: Sun, 27 Jul 2014 06:40:27 -0700 From: David Wolfskill <david@catwhisker.org> To: Michelle Sullivan <michelle@sorbs.net> Cc: FreeBSD Ports ML <freebsd-ports@freebsd.org> Subject: Re: PKG 3.1.0 update - Segmentation fault: 11 Message-ID: <20140727134027.GT34525@albert.catwhisker.org> In-Reply-To: <53D4FD00.9050204@sorbs.net> References: <53D4CE4A.3040208@webrz.net> <20140727111949.GH50802@ivaldir.etoilebsd.net> <20140727123035.GR34525@albert.catwhisker.org> <53D4F2CF.4040501@sorbs.net> <20140727125528.GS34525@albert.catwhisker.org> <53D4FD00.9050204@sorbs.net>
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On Sun, Jul 27, 2014 at 03:22:08PM +0200, Michelle Sullivan wrote:
> ...
> > g1-252(9.3-S)[4] sudo file pkg-static.core
> > Password:
> > pkg-static.core: ELF 32-bit LSB core file Intel 80386, version 1 (FreeB=
SD), FreeBSD-style, from '-static'
> > g1-252(9.3-S)[5]=20
> > =20
>=20
> Doesn't appear stripped..
> > =20
> >> I'd be interested in seeing the backtrace...
> ...
> > =20
> Unless the fault smashed the stack often you can find what the
> problem/cause was. If the stack is smashed you're screwed.
>=20
> gdb <path to binary> <path to core>
Well, you see, that's part of the problem: I'm not at all sure
where the executable in question actually is. (There is nothing
named "pkg-static" in my execution search path.) If I assume(!)
that it's in the port's staging area:
sudo gdb ./pkg-static ../../../../../pkg-static.core
=2E..
Core was generated by `pkg-static'.
Program terminated with signal 11, Segmentation fault.
#0 0x080b6cdc in ?? ()
(gdb) bt
#0 0x080b6cdc in ?? ()
#1 0x28404360 in ?? ()
#2 0x28442220 in ?? ()
#3 0x00000000 in ?? ()
(gdb)=20
> ...
> If you want to catch a smashed stack problem run the binary in gdb:
>=20
> gdb <path to command>
>=20
> Then:
>=20
> set args <what ever is approrpiate>
Yes; well... that presumes a familiarity with the "internal workings" of
pkg which I don't have (and, in all honesty, don't want to have).
> When it faults most of the time you'll get the stack just prior to the
> smashing - though I have had some really bad ones when even gdb cored out=
=2E.
Indeed: one gets into "interesting" issues of figuring out what is
actually reliable information (and what is merely debris).
> ...
Back on the original topic, I was able to get pkg-1.3.1 installed and
apparently functioning on one system (a headless build machine -- which
has the least number of ports inistalled).
What I ended up doing that seems to have "worked"(?) was:
* mv /var/db/pkg{,.save}
* mkdir /var/db/pkg
* cp -pr /var/db/pkg.save/local.sqlite /var/db/pkg
* portmaster -d ports-mgmt/pkg
This builds OK, then dies in installation a little peculiarly:
=2E..
=3D=3D=3D=3D> Compressing man pages (compress-man)
=3D=3D=3D> Installing for pkg-1.3.1
=3D=3D=3D> Checking if ports-mgmt/pkg already installed
=3D=3D=3D> An older version of ports-mgmt/pkg is already installed (apr-1=
=2E5.1.1.5.3_
=2E..[list of every installed port on the machine]...)
You may wish to ``make deinstall'' and install this port again
by ``make reinstall'' to upgrade it properly.
If you really wish to overwrite the old port of ports-mgmt/pkg
without deleting it first, set the variable "FORCE_PKG_REGISTER"
in your environment or the "make install" command line.
*** [check-already-installed] Error code 1
* cd /usr/ports/ports-mgmt/pkg && make reinstall
Which seems to have made constructive use of the port just built (vs.
building it all over yet again)a nd installed it.
I don't yet know how disruptive this has been to ... well anything
(e.g., the current status of installed ports; ability to update ports in
the future; ...).
Peace,
david
--=20
David H. Wolfskill david@catwhisker.org
Taliban: Evil cowards with guns afraid of truth from a 14-year old girl.
See http://www.catwhisker.org/~david/publickey.gpg for my public key.
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