12-06-2011
10 More Discussions You Might Find Interesting
1. Programming
Hi.
Can someone to help me in a segfault problem?
I have a big C++ program that crash from time to time because it receive the SIGSEGV signal.
So my question is: Can I find, without using gdb or other debugging tools, which line from source code cause that problem? Or if exist some gdb API... (1 Reply)
Discussion started by: vaidac_coder
1 Replies
2. Programming
Here is my initiating code:
#define NUM 20
static struct tab {
int count;
int use;
} tab;
int curtab = 0;
int tab_create(int tab_count)
{
curtab++;
tab.use = 1;
tab.count = tab_count;
kprintf("here!");
return curtab;
} (2 Replies)
Discussion started by: micmac700
2 Replies
3. Solaris
Hello - I am finding difficulty in creating and allocating correct size to File Systems on solarix x86 box. Please see below contents I followed on screen and in the end It shows that /app file system is created of size 135GB , I wanted it to be 30gb as mentioned during 'format' command in 'Enter... (7 Replies)
Discussion started by: panchpan
7 Replies
4. Programming
Hi
I am getting a strange segmentation fault during the unwind
process. I am trying to throw an object of an Exception class.
During the DoThrow (in libC.a) the stack starts growing until a
Signal is received.
The object thrown is of a class that inherits from a common class,
and the signal... (0 Replies)
Discussion started by: barak
0 Replies
5. Programming
i wrote handler for sigsegv such that i can allocate memory for a variable to which
sigsegv generated for illlegal acces of memory.
my code is
#include <signal.h>
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
char *j;
void segv_handler(int dummy)
{
j=(char *)malloc(10);
... (4 Replies)
Discussion started by: pavan6754
4 Replies
6. UNIX and Linux Applications
Hello,
Can anybody tell me how can i handle segmentation fault signal, in C code? (2 Replies)
Discussion started by: mustus
2 Replies
7. AIX
Hello,
One of our customer is getting segmentation fault when he runs his shell script which invokes our executable on AIX 6.1.
On AIX 5.3, there were no issues.
Here is the truss output.
811242: __loadx(0x0A040000, 0xF0D3A26C, 0x00000000, 0x00000009, 0x00000000) = 0xF026E884... (0 Replies)
Discussion started by: erra_krishna
0 Replies
8. Solaris
I receive a sigsegv failure. I was under the impression that a core file is created everytime a sigsegv occurrs and the process is terminated. I have had two recent occurrances of a core file not being created. Does anyone know why a core file would not be created. (2 Replies)
Discussion started by: amp4cats
2 Replies
9. Shell Programming and Scripting
While running script I am getting an error like
Few lines in data are not being processed.
After googling it I came to know that adding such line would give some memory to it
ini_set("memory_limit","64M");
my input file size is 1 GB.
Is that memory limit is based on RAM we have on... (1 Reply)
Discussion started by: elamurugu
1 Replies
10. UNIX for Advanced & Expert Users
Hi
I want to create a SIGSEGV when program tries to access one particular area in memory. Is this possible. If so whats the command. (4 Replies)
Discussion started by: jionnet
4 Replies
LEARN ABOUT DEBIAN
ns_malloc
Ns_Alloc(3aolserver) AOLserver Library Procedures Ns_Alloc(3aolserver)
__________________________________________________________________________________________________________________________________________________
NAME
ns_calloc, ns_free, ns_malloc, ns_realloc - Memory allocation functions
SYNOPSIS
#include "ns.h"
void *
ns_calloc(size_t num, size_t esize)
void
ns_free(void *ptr)
void *
ns_malloc(size_t size)
void *
ns_realloc(void *ptr, size_t size)
_________________________________________________________________
DESCRIPTION
The AOLserver memory storage allocation code was moved into Tcl core beginning with Tcl 8.4.0. Starting with AOLserver 3.5, these memory
allocation functions are wrappers that call Tcl_Alloc and Tcl_Free. Earlier versions of AOLserver used this fast memory storage allocator
internally, or the platform's memory allocator depending on how you configured it.
The actual amount of memory allocated or freed will be different from the requested amount. This is because the fast memory allocation
code pools memory into chunks and manages that memory internally. In addition, the Tcl distribution may be compiled to allocate even more
memory which is used internally for diagnostic reasons. Using ns_free to free memory created by routines other than ns_malloc, ns_realloc
and ns_calloc will almost certainly result in segmentation faults or undefined behavior.
The lowercase and mixed-case versions are identical; the lowercase versions are preferred.
ns_calloc(num, esize)
Allocates a block of memory that is num * esize large, zeros it, and returns a pointer to the beginning of the memory block or NULL
if the operation fails.
ns_free(ptr)
ns_free() frees the memory space pointed to by ptr. This pointer must have been created with a previous call to ns_malloc(), ns_cal-
loc() or ns_realloc(). If ptr is NULL, no operation is performed. ns_free() returns no value.
ns_malloc(size)
ns_malloc() allocates size bytes and returns a pointer to the allocated memory. The memory is not cleared. The value returned is a
pointer to the allocated memory or NULL if the request fails. The memory must be freed by ns_free.
ns_realloc(ptr, size)
ns_realloc changes the size of the memory block pointed to by ptr to size bytes. The contents will be unchanged to the minimum of
the old and new sizes. Newly allocated memory will be uninitialized. If ptr is NULL, the call is equivalent to ns_malloc(size); if
size is equal to zero, the call is equivalent to ns_free(ptr). Unless ptr is NULL, it must have been returned by an earlier call to
ns_malloc(), ns_calloc() or ns_realloc().
SEE ALSO
Tcl_Alloc(3), Tcl_Free(3)
KEYWORDS
memory, allocation
AOLserver 4.0 Ns_Alloc(3aolserver)