The only possibility I see for a problem on that line is:
the
pointer variable is probably NULL or has been subject to arithmetic change (++ or --), which usually called an off-by-one error, or the mutex variable was never initalized to NULL to start with.
The problem is the pointer.
FWIW:
I do not see where you release the mutex after you call pthread_mutex_trylock and it returns success...
This User Gave Thanks to jim mcnamara For This Post:
Can anyone explain me how to use pthread_key_create() , pthread_setspecific(), pthread_getspecific() and pthread_key_delete () routines in pthreads.
Kindly state by an example. (3 Replies)
When run it, segment fault.
What is wrong?
#include <stdio.h>
#include <stdlib.h>
const int max =20;
//****************************************************
// Input Matrix
//****************************************************
void inMatrixAA(int *AA, int row, int col)... (9 Replies)
Hi!
I'm linking my hpux code using -lpthread (gcc), yet it references libpthread_tr.1,
the debug version of the pthread lib. How do I force it to use pthreads?
Thanks, :) (3 Replies)
Hi all
In the ltp-posix test,there is a case in open_posix_testsuite\conformance\interfaces\timer_gettime\speculative/6-1.c
I run the above code,it will has a segment fault, if I modify it to below,it works well
Anybody can tell me why? (1 Reply)
Hi,
Whether the following piece of code is placed in the read-only memory of code (text) segment or data segment?
char *a = "Hello";
I am getting two different answers while searching in google :( that's why the confusion is (7 Replies)
I always get segment fault, why? can sb help me and modify it, I have spend on much time on
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/time.h>
#include <string.h>
#define MAX 10
pthread_t thread;
void *thread1()
{
int *a;
int i, n;
... (1 Reply)
I use a binary name (ie polo) it gets some parameter , so for debugging normally i do this :
i wrote script for watchdog my app (polo) and check every second if it's not running then start it , the problem is , if my app , remain in state of segmentation fault for a while (ie 15 ... (6 Replies)
I am trying to reverse complement DNA sequence (string) with a short c++ code using boost library. Code was compiled without any warning/error, but ran into Segmentation fault.
My guess is the function to return a vector, but not sure.
#include <iostream>
#include <fstream>
#include <string>... (14 Replies)
Hello,
This function was copied into my code, which was compiled without error/warning, but when executed there is always Segmentation fault at the end after the output (which seems correct!):
void get_hashes(unsigned int hash, unsigned char *in)
{
unsigned char *str = in;
int pos =... (7 Replies)
Discussion started by: yifangt
7 Replies
LEARN ABOUT SUNOS
fmd
fmd(1M) System Administration Commands fmd(1M)NAME
fmd - fault manager daemon
SYNOPSIS
/usr/lib/fm/fmd/fmd [-V] [-f file] [-o opt=val] [-R dir]
DESCRIPTION
fmd is a daemon that runs in the background on each Solaris system. fmd receives telemetry information relating to problems detected by the
system software, diagnoses these problems, and initiates proactive self-healing activities such as disabling faulty components. When
appropriate, the fault manager also sends a message to the syslogd(1M) service to notify an administrator that a problem has been detected.
The message directs administrators to a knowledge article on Sun's web site, http://www.sun.com/msg/, which explains more about the problem
impact and appropriate responses.
Each problem diagnosed by the fault manager is assigned a Universal Unique Identifier (UUID). The UUID uniquely identifes this particular
problem across any set of systems. The fmdump(1M) utility can be used to view the list of problems diagnosed by the fault manager, along
with their UUIDs and knowledge article message identifiers. The fmadm(1M) utility can be used to view the resources on the system believed
to be faulty. The fmstat(1M) utility can be used to report statistics kept by the fault manager. The fault manager is started automatically
when Solaris boots, so it is not necessary to use the fmd command directly. Sun's web site explains more about what capabilities are cur-
rently available for the fault manager on Solaris.
OPTIONS
The following options are supported
-f file Read the specified configuration file prior to searching for any of the default fault manager configuration files.
-o opt=value Set the specified fault manager option to the specified value. Fault manager options are currently a Private inter-
face; see attributes(5) for information about Private interfaces.
-R dir Use the specified root directory for all pathnames evaluated by the fault manager, instead of the default root (/).
-V Print the fault manager's version to stdout and exit.
EXIT STATUS
The following exit values are returned:
0 Successful completion
1 An error occurred which prevented the fault manager from initializing, such as failure to open the telemetry trans-
port.
2 Invalid command-line options were specified.
FILES
/etc/fm/fmd Fault manager configuration directory
/usr/lib/fm/fmd Fault manager library directory
/var/fm/fmd Fault manager log directory
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWfmd |
+-----------------------------+-----------------------------+
|Interface Stability |Evolving |
+-----------------------------+-----------------------------+
SEE ALSO svcs(1), fmadm(1M), fmdump(1M), fmstat(1M), syslogd(1M), attributes(5), smf(5)
http://www.sun.com/msg/
NOTES
The Fault Manager is managed by the service management facility, smf(5), under the service identifier:
svc:/system/fmd:default
The service's status can be queried using the svcs(1) command. Administrators should not disable the Fault Manager service.
SunOS 5.10 17 Nov 2004 fmd(1M)