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Cannot Access Memory At Address 0x0


Reply With Quote 26th January 2008,10:17 #9 defumar View Profile View Forum Posts View Blog Entries View Articles Novice Join Date Jan 2008 Posts 21 Thanks 3 Re: Cannot access memory Reason: typo dr death View Public Profile Find all posts by dr death #12 10th February 2008, 12:39 PM philstewart Offline Registered User Join Date: Nov 2007 Posts: This GDB was configured as "i586-suse-linux" and gcc Code: gcc (SUSE Linux) 4.3.1 20080507 (prerelease) [gcc-4_3-branch revision 135036] Copyright (C) 2008 Free Software Foundation, Inc. For bug reporting instructions, please see: . http://kshelper.com/cannot-access/cannot-access-memory-at-address-0x0-gdb.html

I am asking because I find people are split to two groups regarding debugging: - Those that just go ahead and gdb the hell outta their binary as soon as a Furthermore, I happen to remember that %ebp is the frame pointer register which means that it points into the stack, however I could figure it out from a previous instruction at Would love to know. –user2004672 Jan 23 '13 at 17:25 stackoverflow.com/questions/605845 –Eregrith Jan 24 '13 at 8:09 add a comment| 4 Answers 4 active oldest votes up vote 3 Google™ Search FedoraForum Search Red Hat Bugzilla Search
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Cannot Access Memory At Address 0x0

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. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed C as an intermediate language Error codes vs exceptions: critical code vs typical code Aren't side effects fundamental in complexity analysis? Can I get a dual entry Schengen visa for tourism purpose for me and my wife?

Code: int main() { double *a; a = malloc(100 * sizeof(double)); /* rest of code here */ free(a); return 0; } it is allocated memory on the heap. Instead they have an InputParser and an OutputProducer and a Processor, which they proudly use in a neat 5-line main function - why wrap that in a class, 2 files in 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 How is True < 2 implemented?

You signed out in another tab or window. Cannot Access Memory At Address Gdb But not trigger by the each image passively.anthonyli( 2013-06-01 14:55:43 -0500 )editSo now mine method is getting cvImage in the callback function and process it in another function. Hmmm. current community chat Stack Overflow Meta Stack Overflow your communities Sign up or log in to customize your list.

There's absolutely nothing wrong at the source level so you have to disassemble to make any sense of what you see. (The difference here is that it's not the fault of Application app = new Application(profile); app->mainLoop(); delete app; That sounds like a far better fix. Use the -dograb option to enforce grabbing. 7 return 0; (gdb) n 8 } (gdb) n 0xb743b050 in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6 (gdb) n Single stepping until exit from function __libc_start_main, In other words, an average C programmer would have a createApplication function which would malloc an Application struct and all would be well since the huge _parseBuf wouldn't land on the

Cannot Access Memory At Address Gdb

If you always want to process the last-received message, set the queue size to 1 in the ros::subscriber constructor. This is a lot of memory in one stack frame, and possibly more than your environment allows for the entire stack. Cannot Access Memory At Address 0x0 Why didn’t Japan attack the West Coast of the United States during World War II? Efficiency is fundamentally at odds with elegance How profilers lie: the cases of gprof and KCachegrind It's "locking" if it's blocking C++ template fuckwittery Why custom allocators/pools are hard "Value", the

Terms Privacy Security Status Help You can't perform that action at this time. http://kshelper.com/cannot-access/cannot-access-a-disposed-object-applicationusermanager.html Coding standards: is consistency prettier than freedom? But I assume you're running 64-bit, as 32-bit generally defaults stack to 1M or so. #2 astrange on 09.04.09 at 3:31 pm One of the gcc 4.5 projects (recently commited) adds Maybe ask an electric fence forum?

Few do and the scarcity makes them very dear to me.) class Application { public: Application(const char* profile); void mainLoop(); private: static const int MAX_BUF_SIZE = 1024; static const int MAX_PROF Instead I'll argue that you can't get a first-rate user experience with this high-level object-oriented programming language if you don't also know assembly. Assuming this is correct then you managed to exceed it. http://kshelper.com/cannot-access/cannot-access-a-closed-file-c.html Is this an isomorphism possible?

Don't you get any message from electric fence and from the debugger? Register All Albums FAQ Today's Posts Search Programming & Packaging A place to discuss programming and packaging. And I try to search the answer here, but I still need some help.

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Yes but the functionality is there to do so, though the problem is that there is no standard or common way between compilers to detect such events occuring. Is this an isomorphism possible? If I receive written permission to use content from a paper without citing, is it plagiarism? Type "apropos word" to search for commands related to "word"...

I didn't think of that. 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 Set that data on the heap dynamically. http://kshelper.com/cannot-access/cannot-access-computer-on-network.html I can't believe I'm praising Tcl Python: teaching kids and biting bits don't mix Side effects or not, aliasing kills you Optimal processor size IHateCamelCase Code, data and interactive programming The

share|improve this answer answered Apr 26 '13 at 20:18 datenwolf 115k796201 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign Parallella, P2012, … Do you really want to be making this much money when you're 50? C++11 FQA anyone? There is NO WARRANTY, to the extent permitted by law.

How can tilting a N64 cartridge cause such subtle glitches? Try allocating those arrays dynamically using malloc. I did that as a workaround for an OSX problem anyhow, so I've removed those lines in the newest Linux version. I updated with a patch from that bug and the segfault went away.

Jan 23 '13 at 17:53 add a comment| up vote 0 down vote In your recursive function, I can't see any terminaison case if there is no matching element. segfault still occurs with width/height at 512 but runs fine at 256. For this reason I would recommend using malloc, although as an alternative you could add the ulimit command to you ~/.bashrc dr death View Public Profile Find all posts by dr I typed "yes" or "y" in the "Human?" field and got some machine-like language telling me to do what I just did.

Type "show copying" to see the conditions. Let me know if you need any other information. Again, it's not about what's possible but about what's likely; the commonly advocated and used style affects the likelihood if not the possibilities. #33 Dmitry Rubanovich on 03.03.12 at 5:17 pm I'm not going to install electric fence just for your program.

This GDB was configured as "x86_64-pc-linux-gnu". anthonyli( 2013-06-01 14:55:27 -0500 )editAs I described in the beginning of thequestion, I need grabbing image then do processing.