Sponsored Content
Top Forums UNIX for Dummies Questions & Answers Compiling with debugger flag -g fixes SEGfault (fortran90) Post 302481519 by drbones on Friday 17th of December 2010 06:37:08 PM
Old 12-17-2010
Compiling with debugger flag -g fixes SEGfault (fortran90)

So the title kinda says it all. I was getting a SEGfault, so I decided to compile with the -g option to find where, and low and behold the SEGfault doesn't occur.

I suppose the answer is "Problem solved! You fixed yet another SEGfault." But I am very curious how this could have happened.

Some info that may help:
1 At first the executable instantly killed itself. After removing some unnecessary variables from the header file, this was fixed. (stack overflow i assume)
2 This is the full compilation command:
ifort -r8 -i4 -mcmodel=large -i-dynamic -align all -g -o code code.f90
3 When compiling without debugger flag messages informing me that loops have been vectorized are printed to screen. Nothing is printed to screen when I compile WITH '-g'.

Thanks!
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

[Linux] How Do I Run Until Segfault

Hello, sorry if this has been posted before but i was wondering if there is a way to run a program until a segmentation fault is found. Currently i'm using a simple shell script which runs my program 100 times, sleeps 1 second because srand(time(0)) is dependent on seconds. Is there a possible... (1 Reply)
Discussion started by: aslambilal
1 Replies

2. Programming

how to avoid the segfault from Address 0x1cd00000103 out of bounds

After allocating memory for some variables, segfault is often to happen, due to the same reason: Address 0x1cd00000103 out of bounds It is welcome to recommend some treatments. Thanks e.g. is_done = 0x1cd00000103 <Address 0x1cd00000103 out of bounds>, hood = 0x23c00000247, c =... (11 Replies)
Discussion started by: cdbug
11 Replies

3. Solaris

Working around netscape 4.9 segfault on Solaris 8

We have a Solaris 8 server which users login to via VNC to get a desktop. On that desktop these users use Netscape Communicator 4.9 to access a very important mail account. Unfortunately Netscape has started segfaulting regularly. Does anyone have any ideas how I can try to find out what point... (1 Reply)
Discussion started by: aussieos
1 Replies

4. Programming

2 Problems: Segfault on ctrl+c and syslog() prob

1. Even if i have the handles for ctrl+c it gives off a segfault 2. syslog doesn't log LOG_ERR event with log masked specified or non specified, it logs LOG_WARNING however... #include <sys/types.h> /* include this before any other sys headers */ #include <sys/stat.h> #include <fcntl.h>... (2 Replies)
Discussion started by: james2432
2 Replies

5. Programming

id3lib SEGFAULT

Hello everyone, I'm writing a program using the id3lib unfortunately I've encountered with memory issue that cause segmentation fault. I tried to rerun and analyze the program with valgrind but it doesn't point me anywhere. I really stuck on this one. Valgrind output: ==14716== Invalid read of... (2 Replies)
Discussion started by: errb
2 Replies

6. Programming

Is Drive Valid Segfault

I have a program that allows users to specify the debug log file location and name. I have tried using the access() and stat() but they both segfault if the drive say (d:\) is invalid. Both seem to be fine if the drive exists. Could someone please point me in the direction to a function that... (1 Reply)
Discussion started by: robfwauk
1 Replies

7. Programming

Alternative debugger to GNU insight debugger

GNU insight debugger is not available now a days and it is required to debug/inspect assembly code as written in the book Assembly Language Programming step by step in Linux so my question is; is there any alternative to insight that I can use instead of insight in which I can get the same... (5 Replies)
Discussion started by: vectrum
5 Replies

8. Programming

segfault in pointer to string program

hello all, my question is not about How code can be rewritten, i just wanna know even though i am not using read only memory of C (i have declared str) why this function gives me segfault :wall:and the other code executes comfortably though both code uses same pointer arithmetic. ... (4 Replies)
Discussion started by: zius_oram
4 Replies

9. Programming

String array iteration causing segfault

I am populating an array of string and print it. But it going in infinite loop and causing segfault. char Name = { "yahoo", "rediff", "facebook", NULL }; main(int argc, char* argv) { int j = 0; ... (7 Replies)
Discussion started by: rupeshkp728
7 Replies

10. Programming

Segfault When Parsing Delimiters In C

Another project, another bump in the road and another chance to learn. I've been trying to open gzipped files and parse data from them and hit a snag. I have data in gzips with a place followed by an ip or ip range sort of like this: Some place:x.x.x.x-x.x.x.x I was able to modify some code... (6 Replies)
Discussion started by: Azrael
6 Replies
IDLE(1) 						      General Commands Manual							   IDLE(1)

NAME
IDLE - An Integrated DeveLopment Environment for Python SYNTAX
idle [ -dins ] [ -t title ] [ file ...] idle [ -dins ] [ -t title ] ( -c cmd | -r file ) [ arg ...] idle [ -dins ] [ -t title ] - [ arg ...] DESCRIPTION
This manual page documents briefly the idle command. This manual page was written for Debian because the original program does not have a manual page. For more information, refer to IDLE's help menu. IDLE is an Integrated DeveLopment Environment for Python. IDLE is based on Tkinter, Python's bindings to the Tk widget set. Features are 100% pure Python, multi-windows with multiple undo and Python colorizing, a Python shell window subclass, a debugger. IDLE is cross-plat- form, i.e. it works on all platforms where Tk is installed. OPTIONS
-h Print this help message and exit. -n Run IDLE without a subprocess (see Help/IDLE Help for details). The following options will override the IDLE 'settings' configuration: -e Open an edit window. -i Open a shell window. The following options imply -i and will open a shell: -c cmd Run the command in a shell, or -r file Run script from file. -d Enable the debugger. -s Run $IDLESTARTUP or $PYTHONSTARTUP before anything else. -t title Set title of shell window. A default edit window will be bypassed when -c, -r, or - are used. [arg]* and [file]* are passed to the command (-c) or script (-r) in sys.argv[1:]. EXAMPLES
idle Open an edit window or shell depending on IDLE's configuration. idle foo.py foobar.py Edit the files, also open a shell if configured to start with shell. idle -est "Baz" foo.py Run $IDLESTARTUP or $PYTHONSTARTUP, edit foo.py, and open a shell window with the title "Baz". idle -c "import sys; print sys.argv" "foo" Open a shell window and run the command, passing "-c" in sys.argv[0] and "foo" in sys.argv[1]. idle -d -s -r foo.py "Hello World" Open a shell window, run a startup script, enable the debugger, and run foo.py, passing "foo.py" in sys.argv[0] and "Hello World" in sys.argv[1]. echo "import sys; print sys.argv" | idle - "foobar" Open a shell window, run the script piped in, passing '' in sys.argv[0] and "foobar" in sys.argv[1]. SEE ALSO
python(1). AUTHORS
Various. 21 September 2004 IDLE(1)
All times are GMT -4. The time now is 02:27 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy