LinuxQuestions.org - i have a new problem with ns2

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i have a new problem with ns2

i got the error below when i using the ns2 to scenario my protocol

Starting program: /usr/local/bin/ns sim.tcl
num_nodes is set 25
INITIALIZE THE LIST xListHead
Loading scenario file...

Program received signal SIGSEGV, Segmentation fault.
0x0829c00b in MobileNode::update_position() ()

who can help to fix it ,thank you !!!!!!!

Looks like the NS guys f*d up; segfaults aren't supposed to happen in good releases. You should report it as a bug.

But, to answer your question, try one of these:

Code:

strace /usr/local/bin/ns sim.tcl

Code:

gdb --args /usr/local/bin/ns sim.tcl

# type run, then bt

Code:

valgrind /usr/local/bin/ns sim.tcl

Then use your Googling skills to figure out what's wrong, based on the information those things return.

Also, double check your input file. You might be passing a bad value to update_position().

i have fixed the problem already ..
thank you very much

Quote:

Originally Posted by edison_0927 (Post 4691163)

i have fixed the problem already ..

Then list your fix for others please.