How To Repair Argc Cannot Access Memory (Solved)

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Argc Cannot Access Memory


So, if you try it via gdb, it will not give any errors. Can I get a dual entry Schengen visa for tourism purpose for me and my wife? I think the issue with allocating on the stack v heap is a red herring. Anyway, after increasing stack size from default 8M to 32M (using ulimit command) the command finally worked. check over here

Teeth marks at the rear end AI problems A writer of the lame kind Low-level is easy Blogging is hard Tags animation (2) bastard (1) cel/acrylic (1) ceramics (13) hardware (17) Search This Blog Loading... Reply With Quote 26th January 2008,11:44 #13 defumar View Profile View Forum Posts View Blog Entries View Articles Novice Join Date Jan 2008 Posts 21 Thanks 3 Re: Cannot access memory To protect innocent, I'll call the binary of this program gensigseg.

Argc= Error Reading Variable

What happens if you change "*argv[]" to "**argv"? It is a GCC Bug, though, regarding its DWARF generation. Of course an average C++ programmer, assuming he found someone to decipher the core dump for him as opposed to giving up on the OS upgrade or the overseas code upgrade,

skie_knite007 Programming 2 05-13-2005 11:12 PM main(int argc, char **argv) Longinus Programming 4 06-12-2004 07:22 AM argc argv linuxanswer Programming 8 10-25-2003 07:54 PM All times are GMT -5. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. A large share of C++ programmers wouldn't know how to typedef the 2D array type. #24 Yoed Stavi on 10.15.09 at 2:24 am I tried first without the rawMem. A better option would be to use dynamic memory allocation or even better since this is C++ you can just use std::vector and not have to worry about deleting dynamically allocated

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. Cannot Access Memory At Address 0x0 Gdb Actual results: (gdb) bt #0 getargs (argc=2, argv=0xbfe1a7b4) at foo6.c:7 #1 0x080483e5 in main (argc=Cannot access memory at address 0x0 ) at foo6.c:17 Expected results: (gdb) bt #0 getargs (argc=2, argv=0xbfe1a7b4) iptables not dropping by IP and port? 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

I'll try later tonight and let you know. Reading monitor supported resolutions... In C you’d be very likely to malloc the forward-declared struct" Why wouldn't one be just as likely to "new" the class in C++? #32 Yossi Kreinin on 08.19.11 at 7:31 I tried debugging one of the examples which also gave me the "argc=Cannot access memory at address 0x0".

Cannot Access Memory At Address 0x0 Gdb

Password Programming This forum is for all programming questions. Newton's second law for individual forces Is it possible to bleed brakes without using floor jack? Argc= Error Reading Variable Margrad View Public Profile Find all posts by Margrad #11 10th February 2008, 11:14 AM dr death Offline Registered User Join Date: Dec 2006 Posts: 82 dshaw256 is Error Reading Variable Cannot Access Memory At Address lowercase breadcrumbs How do I calculate passive perception for a monster?

If you need to reset your password, click here. check my blog arr2D_t& _parseBuf; Profile* _profile; }; Application::Application(const char *profile): rawMem(new char[sizeof(arr2D_t)]), _parseBuf(*reinterpret_cast(rawMem)) { } Application::~Application() { delete [] &_parseBuf; } int main() { Application myApp("foo"); // ran fine on my machine… return asked 2 years ago viewed 1119 times active 2 years ago Related 4Cannot access memory at address error15How to use GDB to find what function a memory address corresponds to4android gdb More information and reason for this action is here: Comment 9 Jan Kratochvil 2008-10-13 11:02:51 EDT It is fixed in the current upstream snapshot: GNU C (GCC) version 4.4.0 20081007

I'll leave this question unansvered... You try to concatenate onto it when an error occurs. Someone thoughtfully blames differences in system libraries. this content It still reports errors when you break at main, but it will let you view the pair once you've stepped into main.

You may have to register before you can post: click the register link above to proceed. 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 I didn't think of that.

The trouble with C++ debuggers is that they routinely print so much garbage due to memory corruption, debug information inadequacy and plain stupidity that their users are accustomed to automatically ignore

Program exited normally. 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. argc should still be valid as it was at line 5. A similar and perhaps nastier case is when you get a misaligned stack pointer and crash at some place where the compiler used an x86 vector instruction that only works with

Use the -dograb option to enforce grabbing.7 return 0;(gdb) n8 }(gdb) n0xb743b050 in __libc_start_main () from /lib/tls/i686/cmov/ nSingle stepping until exit from function __libc_start_main, which has no line number information.Program exited To start viewing messages, select the forum that you want to visit from the selection below. vladmihaisima View Public Profile View LQ Blog View Review Entries View HCL Entries Find More Posts by vladmihaisima 01-12-2007, 05:18 AM #3 Nick_Battle Member Registered: Dec 2006 Location: Bracknell, And accessing memory at address 0x0 means you are trying to dereference a null pointer.

Main Menu LQ Calendar LQ Rules LQ Sitemap Site FAQ View New Posts View Latest Posts Zero Reply Threads LQ Wiki Most Wanted Jeremy's Blog Report LQ Bug Syndicate Latest Regarding the preallocation of stacks for threads - so what happens under `unlimit stacksize' then? (I'd assume that Linux doesn't really preallocate physical memory for stacks but it does have to 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 Why did the best potions master have greasy hair?

run attached program using gdb. 2. Select Articles, Forum, or Blog. The example with the huge member array preventing you from entering main() is close to a particular case, where the problem didn't come up until someone ssh'd to someone else's machine Some languages have reflection given which we could traverse the member tree automatically; incidentally, most of those languages don't dump core though.