[Bug Report] ----------------------------- Category: Run Time - Segmentation Fault Package: ns 2.31 OS: Ubuntu 7.04 Environment Variables: LD_LIBRARY_PATH= TCL_LIBRARY= TK_LIBRARY=
----------------------------- Description: Description of Problem: I am using ns-2 2.31 to simulate. My idea is to to disable some mobile in the middle of the simulation. I found there is a method: $node node-down. But every time I use this method, the tcl script got no error. However, when it runing to the half of the simulation time, an error popped out: ns: _o14 node-down: (_o19 cmd line 1) invoked from within "_o19 cmd node-down" invoked from within "catch "$self cmd $args" ret" invoked from within "if [catch "$self cmd $args" ret] { set cls [$self info class] global errorInfo set savedInfo $errorInfo error "error when calling class $cls: $args" $..." (procedure "_o19" line 2) (SplitObject unknown line 2) invoked from within "$mac_(0) node-down" (procedure "_o14" line 3) (Node/MobileNode node-down line 3) invoked from within "_o14 node-down" How Easily Reproducible: every time (e.g. every time, intermittent, once only, etc.) Steps to Reproduce: (describe the minimal set of steps necessary to trigger the bug) 1. using wireless example tcl : ~/ns-2.31/tcl/ex/wireless-dsdv-newmodel.tcl 2. add: $ns_ at 10.0 "$node_(0) node-down" 3. run the script Actual Results: (describe what the application did after performing the above steps) Expected Results: (describe what the application should have done, were the bug not present) Additional Information: (the following infomation is helpful to debug: 1. simulation script, detailed output files, packet trace 2. patch file if you modify some source code 3. a backtrace from gdb if you get a segment fault If they are big files, PLEASE put them in your web space and include the URL here.)