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hi, theres a simple to fix bug in the router and netlist code that causes
random bus-errors/segfaults
after fixing it, i successfully did final core-to pads  channel routing
for a 10mm^2 0.25um chip.

its in the usage of the function HeapAdd() from utils/heap.c
in all of the various modules that routing related
i just ended up doing grep -R "HeapAdd" to catch them all

the code calls it with an integer ptr arguemnt.
 int bug;
 HeapAdd(&glMazeHeap, &bug, (char *) new);

but HeapAdd is looking for a union heUnion *
and copies more than one int's worth of data from the ptr,
causing intermittant bus-erros on Solaris.

anyhow changing all of those calls to
 { union heUnion tmpkey;
   tmpkey.hu_int=dist;
   HeapAdd(&glMazeHeap, &tmpkey, (char *) new);
 }

fixes the problem.

--conrad

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