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Re: [ns] ns crashes on included example files, on FreeBSD system
go to pareto.cc, find constructor of POO_Traffic, add rng_ = NULL; there.
On Sat, 10 Feb 2001, Rob Ballantyne wrote:
> Hi All,
>
> I've installed ns-2.1b7 (several times) both using the all
> in one install and the individual components. It seems to pass
> the verification tests (except the FreeBSD noted ones) but I tried
> running the tg.tcl example out of the tcl/ex directory and I get:
>
> >[124] freebsd% ns tg.tcl
> >warning: no class variable Tracefile::debug_
> >
> >
> > see tcl-object.tcl in tclcl for info about this warning.
> >
> >warning: no class variable Tracefile::debug_
> >
> > see tcl-object.tcl in tclcl for info about this warning.
> >
> >Segmentation fault (core dumped)
>
>
>
> When I ask where it crashes it appears to be deep inside:
>
> -------------------------------------------------------------------------------
> [125] freebsd% gdb /usr/local/bin/ns ns.core
> GNU gdb 4.18
> Copyright 1998 Free Software Foundation, Inc.
> GDB is free software, covered by the GNU General Public License, and you
> are
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> Type "show copying" to see the conditions.
> There is absolutely no warranty for GDB. Type "show warranty" for
> details.
> This GDB was configured as "i386-unknown-freebsd"...(no debugging
> symbols found)...
> Core was generated by `ns'.
> Program terminated with signal 11, Segmentation fault.
> Reading symbols from /usr/local/lib/libotcl.so...done.
> Reading symbols from /usr/local/lib/libtk8.3.so...done.
> Reading symbols from /usr/local/lib/libtcl8.3.so...done.
> Reading symbols from /usr/X11R6/lib/libXext.so.6...done.
> Reading symbols from /usr/X11R6/lib/libX11.so.6...done.
> Reading symbols from /usr/lib/libstdc++.so.3...done.
> Reading symbols from /usr/lib/libm.so.2...done.
> Reading symbols from /usr/lib/libc.so.4...done.
> Reading symbols from /usr/X11R6/lib/libXThrStub.so.6...done.
> Reading symbols from /usr/libexec/ld-elf.so.1...done.
> #0 0x804a690 in RNGImplementation::next ()
> (gdb) where
> #0 0x804a690 in RNGImplementation::next ()
> #1 0x804a705 in RNGImplementation::next_double ()
> #2 0x8057908 in POO_Traffic::next_interval ()
> #3 0x8056ea7 in TrafficGenerator::start ()
> #4 0x80568a3 in Application::command ()
> #5 0x80576a2 in POO_Traffic::command ()
> #6 0x8117df1 in TclClass::dispatch_cmd ()
> #7 0x2821d8ae in OTclDispatch (cd=0x83020c0, in=0x823d000, argc=3,
> argv=0xbfbfd268)
> at otcl.c:421
> #8 0x282f1948 in TclInvokeStringCommand () from
> /usr/local/lib/libtcl8.3.so
> #9 0x2830c773 in TclExecuteByteCode () from /usr/local/lib/libtcl8.3.so
> #10 0x282f2397 in Tcl_EvalObjEx () from /usr/local/lib/libtcl8.3.so
> #11 0x2830c980 in TclExecuteByteCode () from /usr/local/lib/libtcl8.3.so
> #12 0x282f2397 in Tcl_EvalObjEx () from /usr/local/lib/libtcl8.3.so
> #13 0x28330215 in TclObjInterpProc () from /usr/local/lib/libtcl8.3.so
> #14 0x2832fdc5 in TclProcInterpProc () from /usr/local/lib/libtcl8.3.so
> #15 0x2821da56 in OTclDispatch (cd=0x83020c0, in=0x823d000, argc=2,
> argv=0xbfbfda98)
> at otcl.c:464
> #16 0x282f1948 in TclInvokeStringCommand () from
> /usr/local/lib/libtcl8.3.so
> #17 0x2832944c in TclExpandTokenArray () from
> /usr/local/lib/libtcl8.3.so
> #18 0x28329b51 in Tcl_EvalEx () from /usr/local/lib/libtcl8.3.so
> #19 0x28329db5 in Tcl_Eval () from /usr/local/lib/libtcl8.3.so
> #20 0x282f3aa2 in Tcl_GlobalEval () from /usr/local/lib/libtcl8.3.so
> #21 0x81176ae in Tcl::eval ()
> #22 0x804d38e in AtHandler::handle ()
> #23 0x804d351 in Scheduler::dispatch ()
> #24 0x804d370 in Scheduler::dispatch ()
> #25 0x804d2c2 in Scheduler::run ()
> #26 0x804d492 in Scheduler::command ()
> #27 0x8117df1 in TclClass::dispatch_cmd ()
> #28 0x2821d8ae in OTclDispatch (cd=0x8448e40, in=0x823d000, argc=3,
> argv=0xbfbfe128)
> at otcl.c:421
> #29 0x282f1948 in TclInvokeStringCommand () from
> /usr/local/lib/libtcl8.3.so
> #30 0x2830c773 in TclExecuteByteCode () from /usr/local/lib/libtcl8.3.so
> #31 0x282f2397 in Tcl_EvalObjEx () from /usr/local/lib/libtcl8.3.so
> #32 0x2830c980 in TclExecuteByteCode () from /usr/local/lib/libtcl8.3.so
> #33 0x282f2397 in Tcl_EvalObjEx () from /usr/local/lib/libtcl8.3.so
> #34 0x28330215 in TclObjInterpProc () from /usr/local/lib/libtcl8.3.so
> #35 0x2832fdc5 in TclProcInterpProc () from /usr/local/lib/libtcl8.3.so
> #36 0x2821da56 in OTclDispatch (cd=0x8448e40, in=0x823d000, argc=2,
> argv=0xbfbfe958)
> at otcl.c:464
> #37 0x282f1948 in TclInvokeStringCommand () from
> /usr/local/lib/libtcl8.3.so
> #38 0x2830c773 in TclExecuteByteCode () from /usr/local/lib/libtcl8.3.so
> #39 0x282f2397 in Tcl_EvalObjEx () from /usr/local/lib/libtcl8.3.so
> #40 0x28330215 in TclObjInterpProc () from /usr/local/lib/libtcl8.3.so
> #41 0x2832fdc5 in TclProcInterpProc () from /usr/local/lib/libtcl8.3.so
> #42 0x2821d8ae in OTclDispatch (cd=0x8448bc0, in=0x823d000, argc=2,
> argv=0xbfbff008)
> at otcl.c:421
> #43 0x282f1948 in TclInvokeStringCommand () from
> /usr/local/lib/libtcl8.3.so
> #44 0x2832944c in TclExpandTokenArray () from
> /usr/local/lib/libtcl8.3.so
> #45 0x28329b51 in Tcl_EvalEx () from /usr/local/lib/libtcl8.3.so
> #46 0x28320e5d in Tcl_EvalFile () from /usr/local/lib/libtcl8.3.so
> #47 0x28323a1c in Tcl_Main () from /usr/local/lib/libtcl8.3.so
> #48 0x804a47d in main ()
> #49 0x804a3d5 in _start ()
> (gdb) quit
> -------------------------------------------------------------------------------
>
> If i'm being stupid and missing something trivial please let me know.
>
> For the record:
>
> OS: FreeBSD 4.2-RELEASE
> Tcl: 8.3.2
> Tk: 8.3.2
> otcl: 1.0a6
> TclCL: 1.0b10
> ns: 2.1b7 (and the latest snapshot)
> nam: 1.0a9 (and the latest snapshot)
>
>
> PLEASE, point me in the right direction to get this working.
>
> Any help would be much appreciated.
>
> Thanks
>
> Rob
>
>