I reckon its the problem with malloc(), free() pair.
Memory corruption is normally due to you straying outside the bounds of an array - not with malloc()/free() statements matching up. You've probably overwritten some of the space next to a malloc()'d portion of memory that glibc expects to be able to use for keeping track of the memory region - go through with a debugger and have a look for bounds errors.
As an aside, here's the sort of thing you can expect if you did have a problem with malloc()/free() pairs:
When allocating memory for two different nodes, the resulting memory are the same. Clearly, this will lead to a mistake. This happened in a function. And the process must be in a function.
(gdb) p tree->list
$43 = (node *) 0x8be4180
(gdb) p tree->list
$44 = (node *) 0x8be4180
At the... (2 Replies)
Hello, everyone.
I got the following error when I am using awk to analysis some text file:
*** glibc detected *** awk: malloc(): memory corruption: 0x080c67f8 ***
======= Backtrace: =========
/lib/tls/i686/cmov/libc.so.6
/lib/tls/i686/cmov/libc.so.6... (5 Replies)
Actually for a process to run it needs text, stack , heap and data segments. All these find a place in the physical memory.
Out of these 4 only heap does exist after the termination of the process that created it. I want to know the exact reason why this happens. Also why the other process need to... (20 Replies)
there seems not to be error in this segment. In some computers, it can work well. But in others, it will give a failure.
why it ocurrs and how to deal with it?
in a function:
if( *ver == NULL ) {
*ver = (vertex *) malloc(sizeof(vertex)); //this line
... (17 Replies)
Hi everyone
I am developing an utility.
At some part of it I read directory entries to a dynamic array: struct list
It stores pointers to items: list.entries,
which are structures: struct entry
If a number of files in a directory is greater then number of elements an array was initially... (11 Replies)
*** glibc detected *** ./a.out: malloc(): memory corruption (fast):
Posted A minute ago
M trying to make multiway tree and dont know what happend when this part of code get executed:
01void ins(NODE *ptr)
02{
03 //working
04 if(ptr!=NULL)
05 {
06 SNODE *var=NULL;
07 var=(SNODE... (3 Replies)
I am facing a problem of memory corruption. The loop runs for the first time but does not go through the second time. What could be the problem?
for(int z=0;z<2;z++)
{
fp=fopen("poly.dat","r");
/*do something which reads this file into a 2D array*/
fclose(fp);
... (10 Replies)
I am having a problem with shared memory corruption. I have two 86 servers running Solaris 10 (150400-06). One of the servers is accessed by a Sun Ray thin client Version 11.1.3.0.2.6. I login into server one from the thin client. I then ssh -X to server two. When a process that contains a... (2 Replies)
I put together a C function to add strings to a dynamic array of strings (mostly for educational purpose to explain pointers to my kid). It works, but sometimes one or two strings in the array becomes corrupted. Running example on 64 bit Ubuntu, gcc ver. 4.8.4
Hope my code is self-explanatory:
... (2 Replies)
Discussion started by: migurus
2 Replies
LEARN ABOUT DEBIAN
unmass
UNMASS(1) General Commands Manual UNMASS(1)NAME
unmass - extract game archive files
SYNOPSIS
unmass [options] file
DESCRIPTION
This manual page documents briefly the unmass command.
unmass is a tool to extract game archives. It supports the following archive types: Crismon Land, Baldur's Gate 2, Civilization 4, Doom
(WADs), Dune 2, Etherlords 2, Final Fantasy 7 and 8, Flashpoint, Knights of Xentar, Metal Gear Solid (DARs), Moorhuhn 2 and 3, Megaman Leg-
ends, Oni, Operation Flashpoint, Princess Maker 2, Quake 1, RollCage, Swine, Unreal Tournament umods, Virtua Fighter bitmaps, MEA exe's,
some economy file format.
OPTIONS -h, --help
Show summary of options.
-e <archive file> <file name> [...<file name>]
Opens the archive and extract files.
--modules
Prints out list of modules for archive loading.
--list <archive file>
Opens the archive and prints list of the files inside.
EXAMPLES
Display list of files contained inside archive 'battle.lgp'
unmass -list battle.lgp
Opens 'battle.lgp' and extracts file 'aabc.txt' and all files ending
with 'dat' into current directory
unmass -e battle.lgp aabc.txt *dat
SEE ALSO pak(1).
AUTHOR
unmass was written by Miro Janosik.
This manual page was written by Gurkan Sengun <gurkan@phys.ethz.ch>, for the Debian project (but may be used by others).
July 9, 2007 UNMASS(1)