How To Fix Argc= Error Reading Variable Cannot Access Memory At Address Tutorial

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Argc= Error Reading Variable Cannot Access Memory At Address


White ring of pus forming around branches The nth numerator Does sputtering butter mean that water is present? I've cut down my code and pinned down the problem to be at line 5, yet I'm still puzzled as of why it happens, I can't see what I'm doing wrong Why don't we have a word for it? Can I switch from past tense to present tense in an epilogue? check over here

Use the -dograb option to enforce grabbing.7 return 0;(gdb) bt#0 main (argc=Cannot access memory at address 0x0) at main.cpp:7(gdb) p argcCannot access memory at address 0x0(gdb) n8 }(gdb) bt#0 main (argc=0, It's perfectly valid. openSUSE 12.3 (x86_64) with Kernel 3.7.10-1.16-desktop and KDE 4.11.2 on MacBook Pro Latest MS Windows version used: Win95 Reply With Quote 29-May-2009,06:06 #3 roberto60 View Profile View Forum Posts View Blog This GDB was configured as "i486-linux-gnu"...

Cannot Access Memory At Address 0x0

I think you'll find that's not the mid point. Oh, and please rebuild your project without KDevelop. operator< (q=..., this=) at /usr/include/CGAL/GMP/Gmpq_type.h:194 194 bool operator< (const Gmpq &q) const { return mpq_cmp(this->mpq(), q.mpq()) < 0; } Full backtrace: #0 operator< Though I don't know how to check if it returns a valid pointer.

Whatever the prelude, you open the core dump with `gdb app core` and gdb says: #0  0x080484c9 in main (argc=Cannot access memory at address 0xbf3e7a8c) at main.cpp:4 4    int main(int argc, The offending line appears to be the fprintf line near the end - when I remove it, I get no segmentation fault, but I'm having a complete brain freeze and can't What "Worse is Better vs The Right Thing" is really about "It's done in hardware so it's cheap" Work on unimportant problems Hardware macroarchitecture vs mircoarchitecture Email is evil Which of I only noticed it because the Eclipse C++ debug environment gives very nasty looking errors when it can't read the variables.

User Name Remember Me? It still reports errors when you break at main, but it will let you view the pair once you've stepped into main. GodL1ke Using Fedora 7 23rd October 2007 05:04 AM Segmentation fault! see this here And with the first-rate experience being the living hell that it is, few would willingly opt for a second-rate option.

Program exited normally. (gdb) q To copy to clipboard, switch view to plain text mode backtrace after executing line 5 (evil line, ain't it) returns the same as before (argc=Cannot access Creating a table with FIXED length column widths On 1941 Dec 7, could Japan have destroyed the Panama Canal instead of Pearl Harbor in a surprise attack? Join our community today! Couldn't figure this one out though.

Cannot Access Memory At Address Gdb

It can depend on compiler version if the stack is effectively allocated statically by the compiler (actually a linker script shipped with it), as can be the case in embedded systems; But, in any case: if you haven't already, invest time learning how to use gdb. #7 9th February 2008, 10:48 PM philstewart Offline Registered User Join Date: Nov Cannot Access Memory At Address 0x0 You try to concatenate onto it when an error occurs. BTW: All the glBuffer… have been core ever since OpenGL-1.4, i.e.

I'm not big on Intel architecture internals, but you just might be running past an internal limit there? Advanced Search Forum Qt Newbie Cannot access memory at address 0x0 If this is your first visit, be sure to check out the FAQ by clicking the link above. Breakpoint 1 at 0x80484ff: file memtest.c, line 15. (gdb) run Starting program: /home/robber/Linguaggi/fortran/memtest Breakpoint 1, main (argc=1, argv=0xbfb94b44) at memtest.c:15 init () at memtest.c:7 Electric Fence 2.2.0 Copyright (C) 1987-1999 Bruce Type "show copying" to see the conditions.

edit retag flag offensive close merge delete add a comment 1 answer Sort by » oldest newest most voted 2 answered 2013-06-01 13:31:00 -0500 Jeremy Zoss 4021 ●34 ●40 ●66 Posting in the Forums implies acceptance of the Terms and Conditions. Please visit this page to clear all LQ-related cookies. this content Attempting to read in an array of structures with a single read (cannot use advanced I/O functions such as fread()). #include "A2_Phase2.h" void read_directory(Cdir directory[], int cnt) { int fd; char

Application app = new Application(profile); app->mainLoop(); delete app; That sounds like a far better fix. INCLUDEPATH += . # Input SOURCES += main.cpp To copy to clipboard, switch view to plain text mode Right I made it without KDevelop and this is what gdb gave me Google™ Search FedoraForum Search Red Hat Bugzilla Search
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All upper case is often informally reserved for defines with variables using lower or camelCase share|improve this answer edited Jan 23 '13 at 19:09 answered Jan 23 '13 at 16:41 simonc

If you need to reset your password, click here. If you want to go deeper into this, discover what the default stack size GCC gives or explicitly set the stack size (assuming you can) until you find a segfault. For example, on my wubi installation (Ubuntu for technophopes like myself who have a Windows machine, want a Linux, and hate the idea of fiddling with partitions), `limit stacksize` reports the Cheers, -nick Nick_Battle View Public Profile View LQ Blog View Review Entries View HCL Entries Find More Posts by Nick_Battle Thread Tools Show Printable Version Email this Page Search

Why put a warning sticker over the warning on this product? BTW I don't realy know the x86 assembly, but I can still read it thusly: "mov" can't just mean the tame RISC "move between registers" thing because then we wouldn't crash, Perhaps I should ignore the error? have a peek at these guys Join Us!

I'm new to working with KDevelop. Can I get a dual entry Schengen visa for tourism purpose for me and my wife? I compiled your program as test: Code: $ gcc -fstack-check -o test test.c test.c: In function main: test.c:32: warning: frame size too large for reliable stack checking test.c:32: warning: try reducing Advanced Search

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For example, nothing at the source code level can explain how a program is so shocked by the necessity of running main that it dumps a core in its pants. The assignment seems mostly irrelevant, but it's a fairly basic I/O exercises. Here is what posts: service is "org.kde.StatusNotifierItem-28413-2" Registering a client interface to the KStatusNotifierWatcher I'm not sure if this is a related issue, but when the front-end crashes, I lose all I am very thankful to anyone would expalin this behaviour or hint for documentation.

Are you new to Here is what posts in gdb: (gdb) run Starting program: /home/archgamer/ckb/bin/ckb [Thread debugging using libthread_db enabled] Using host libthread_db library "/usr/lib/". Reply With Quote + Reply to Thread Page 1 of 2 12 Last Jump to page: Quick Navigation Newbie Top Site Areas Settings Private Messages Subscriptions Who's Online Search Forums Forums The question does not have to be directly related to Linux and any language is fair game.

Hi there! about | faq | help | privacy policy | terms of service | give feedback Powered by Askbot version 0.7.56 Please note: ROS Answers requires javascript to work properly, please enable Password Forgot Password? The Green Hills debugger does that and I think the compiler stores things in the debug info for this to work, however heuristic scripting can do quite well given just a

Saluti R Reply With Quote 30-May-2009,03:25 #8 ken_yap View Profile View Forum Posts View Blog Entries View Articles Flux Capacitor Penguin Join Date Jun 2008 Location UTC+10 Posts 9,936 Re: argc=Cannot This is the full top of my code, have I made an error? It will instantly tell you where the segfault is. Do company names actually matter?

Which would be easy to see in the case of a recursive function, or if the program crashed, say, in an attempt to access a large local array.