Re: Strange problems with graph library

[Axel von Kamp]

Marcus G. Daniels wrote:

> >>>>> "AVK" == Axel von Kamp <address@hidden> writes:
>
> AVK> To reproduce this
> AVK> behaviour you can modify ModelSwarm.m in DynamicGraph-1.4.1. In
> AVK> buildObjects you can change the string which is used to label the
> AVK> nodes:
>
> AVK> [theNet addNode: [[[DiGraphNode createBegin: [self getZone]]
> AVK>   setNodeLabel: "Node"]
> AVK>  createEnd]];
>
> I tried strings varying in length from 0 to 40 characters, and it
> didn't crash.  A backtrace might provide a clue, though.

Ok. I've got no experience with gdb so this is what I've done:

address@hidden DynamicGraph-1.4.1]$ gdb dynamicGraph core
GNU gdb 4.17
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This GDB was configured as "i386-redhat-linux"...
Core was generated by `dynamicGraph'.
Program terminated with signal 11, Segmentation fault.
find_solib: Can't read pathname for load map: Input/output error

#0  0x4022905f in ?? () from /usr/lib/libtk8.0.so
(gdb) bt
#0  0x4022905f in ?? () from /usr/lib/libtk8.0.so
#1  0x40063b87 in ?? () from /usr/lib/swarm/libtkobjc.so.4
#2  0x4005d722 in ?? () from /usr/lib/swarm/libtkobjc.so.4
#3  0x804cbda in _i_DiGraphNode__setCanvas_withRandPosFunc_
(self=0x8132658,
    _cmd=0x805b318, aCanvas=0x812f910, posFunc=0x8134200) at
DiGraphNode.m:42
#4  0x804b48c in _i_DiGraph__addNode_ (self=0x8132628, _cmd=0x805ac34,
    aNode=0x8132658) at DiGraph.m:153
#5  0x804a454 in _i_ModelSwarm__buildObjects (self=0x810e328,
_cmd=0x805af48)
    at ModelSwarm.m:75
#6  0x804ac7c in _i_ObserverSwarm__buildObjects (self=0x81018b8,
    _cmd=0x805a9b4) at ObserverSwarm.m:64
#7  0x8049fc9 in main (argc=1, argv=0xbffffa28) at main.m:22
(gdb)

I hope this helps...


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