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Old   March 13, 2005, 20:13
Default Segmentation fault???
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I am doing numerical simulation under Red Hat Linux9.0 , but I met error sometime, and " Segmentation fault" is printed to the screen and the program stopped, I do not know why this happens, Help needed.

Thanks in advance!
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Old   March 13, 2005, 21:54
Default Re: Segmentation fault???
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A segmentation fault generally points to a memory address error - usually caused by overrunning an array, in my experience. Try compiling with a -C option (for most compilers this enables array boundary checking) and see if it gives you any information when the program crashes.
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Old   March 14, 2005, 12:21
Default Re: Segmentation fault???
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Yes u r right? It happens to me when I forget to deallocate the arrays at the end of the program.(after allocating them at some point in the program). Hope it helps Bye

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Old   March 18, 2005, 13:25
Default Re: Segmentation fault???
Sandip N. Jadhav
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Just compile ur code using -g option eg $gcc -lm -g test.c

and then do $gdb a.out $gdb run

Mostly program will crash, then type $gdb where

It will show u the location of problem in ur code.

Regards Sandip Jadhav


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