Re: [Flightgear-devel] OSG branch current CVS segfault in SimGear ModelRegistry.cxx

[Chris M. <cme...@sp...>]

On Mon, 10 Dec 2007 07:26:30 +0100
Tim Moore wrote
> Tim Moore wrote:
> > Chris Metzler wrote:
> >> Hi.  Probably not a lot of interest in this with the new release
> >> coming shortly, but I just now updated the OSG branch from CVS and
> >> rebuilt.  I'm getting a segfault during startup, as "loading scenery
> >> objects" comes up on the screen.  A quick check in gdb shows:
> ...
> >> } Program received signal SIGSEGV, Segmentation fault.
> >> } [Switching to Thread 1082636640 (LWP 32616)]
> >> } simgear::ModelRegistry::readNode (this=3D0xc4d590,
> >> fileName=3D@0x4087b110, opt=3D0x0) }
> >> at /usr/lib/gcc/x86_64-linux-gnu/4.1.2/../../../../include/c++/4.1.2/b=
its/stl_deque.h:131 }
> >> 131             _M_last(__x._M_last), _M_node(__x._M_node) {}
> >>
> >>
> >> I built the OSG version a couple of weeks ago without incident.  It
> >> looks like scene/model/ModelRegistry.cxx has been tweaked a couple of
> >> times since, including 6 hours ago, so maybe it's something about the
> >> most recent changes?
> >>
> >> If it matters in this case:  Linux, amd64; current CVS/SVN OSG, plib,
> >> SimGear, fgfs.
> >>
> >> -c
> >>
> > I'm interested in the rest of your backtrace, though I think I know
> > what the problem is.

Yeah, sorry, that was dumb of me.  Here's what I get:


} (gdb) bt
} #0  simgear::ModelRegistry::readNode (this=3D0xc4d590, fileName=3D@0x4087=
b110,
}     opt=3D0x0)
}     at /usr/lib/gcc/x86_64-linux-gnu/4.1.2/../../../../include/c++/4.1.2/=
bits/stl_deque.h:131
} #1  0x0000000000819adc in FGTileEntry::load (this=3D0xa83c550,
}     path_list=3D<value optimized out>, is_base=3D<value optimized out>)
}     at /usr/local/include/osgDB/Registry:206
} #2  0x0000000000816b31 in FGTileLoader::LoaderThread::run (this=3D0x8cbb9=
80)
}     at FGTileLoader.cxx:182
} #3  0x00000000009bb48a in start_handler (arg=3D0x4087afb0) at SGThread.cx=
x:23
} #4  0x00002aaaabb19f1a in start_thread () from /lib/libpthread.so.0
} #5  0x00002aaaad44c6c2 in clone () from /lib/libc.so.6
} #6  0x0000000000000000 in ?? ()


> In any event, this should be fixed now.

I'll give it a shot.

-c


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Chris Metzler			cme...@sp...
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