Programming :: Where Printk Messages Stored When Call Insmod
Jul 8, 2011where the printk messages are stored when we call a insmod? I'm using Slackware, and I think my distro can store these messages on others place.
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Server :: Kernel: Printk - 3 Messages Suppressed
Aug 12, 2010I've got this lines in /var/log/messages Server is running varnish-cache
View 1 Replies View RelatedDebian :: Kernel Keeps Reporting A Printk Bug In Syslog Recent Printk Recursion
Mar 5, 2010I've got a VPS node running 2.6.26-2-openvz-amd64 and several guest machines. My kernel keeps reporting a printk bug in syslog:
[Code].....
This is somehow being replicated on the guests machines. I've read that printk is a kernel function that prints out a message, during bootup Has anyone experienced similar problem or have a more experience with this? Does it have negative impact to the host performance?
Programming :: Insmod: Error Inserting 'kernel.ko': -1 Invalid Parameters?
Jan 16, 2010insmod: error inserting 'kernel.ko': -1 Invalid parametersI am getting this error when i am try to insert kernel.ko into kernelMy systemfedora 12 with gcc 4.4.2insmod kernel.koinsmod: error inserting 'kernel.ko': -1 Invalid parametersmy program
__________________kernel.c________________________ ___________
#include <linux/module.h> /* Needed by all modules */
#include <linux/kernel.h> /* Needed for KERN_INFO */
[code].....
Programming :: Logging Messages From Program Doesn't Reach /var/log/messages?
Jul 13, 2011I have a syslog-ng running and kernel build of 2.6.34.8 I use a syslog API in my program with facility LOG_LOCAL5 and and levels debug err and crit and info. when I ran on the older syslog facility I had everything logged fine as I intended. now I have written these rules into the syslog-ng.conf:
options {
flush_lines (0);
time_reopen (10);
log_fifo_size (1000);
[code]....
the last two rules show my program gnssapp. the result is all debug levels or crit or err levels I don't see any of them !
Ubuntu :: After Updates - Stayed To Black Screen Then Filled Up With Error Messages Like About Trace Call
Nov 5, 2010Two days ago I downloaded and installed new updates after upgrading from 10.04 to 10.10. After the update I was informed I needed to restart. Once my laptop booted up again it stayed to a black screen and then filled up with error messages like something about trace call or call trace?
I had no way to get into my system but I did have some minor success starting in an old kernel. However after a while it would freeze like the graphics driver was going wrong.
Two attempt later of reinstalling 10.10 from disc after deleting the drive content and after updating it would go back to the same.
So I have now disabled updates as I haven't a clue on which one(s) is causing these problems.
I am on a HP Pavillion dv7 with nVidia graphics card and running 64amd Ubuntu.
Fedora :: Where Are Stored PWs For Remote Desktop Viewer Stored?
Oct 20, 2010I have machine that I used to VNC to on my network with Remote Desktop Viewer from my Fedora 12. When I first connected I checked the checkbox that I wanted to store the pw. Now the pw on the other machine has changed but Remote Desktop Viewer does not ask for a new password, it just gives me a black screen, like I am connected but I can't see anything. I'd like to know if anyone knows where this pw data is stored on the system so I can start fresh. I already tried uninstalling Remote Desktop Viewer and installing it again.
View 1 Replies View RelatedProgramming :: Where Are BASH Commands Stored
Feb 21, 2011Where are the other BASH commands/exe stored? If the commands are part of the exe of BASH than ls would not be in a path, correct?
View 11 Replies View RelatedProgramming :: C: How Is A String Array Stored In Memory
Jan 12, 2009I need to call a function that takes a string array as argument, declared like this:Code:int someFunction(/* some parameters... */, const char* s[]);I'd like to know how to allocate memory for the string array. I know a string is an array of chars and an array is a pointer to the first element, then a string array should simply be a two dimensional char array. But is it a single memory block where all strings are stored consecutively?? Or is it a base vector where each element is a pointer to a separate memory block that contains a single string?More specifically: should I malloc() a single memory block large enough for all the strings? or should I allocate separate blocks for each string plus an extra one for the base vector?
View 5 Replies View RelatedProgramming :: C Language Fuction Returns : Where And How Is The Fuctions Value Stored
May 23, 2010I'm studying the C Language, None of the documents I'm reading covers returning values from a function. They state that the function sends the valve to the caller but that is the only info I have. Do I have to create a varible with the name of the function I called and is it stored there?
View 14 Replies View RelatedProgramming :: Add Switch To Every Gcc/g++ Call?
Feb 23, 2009I was wondering if there was a way to add a switch to a gcc/g++ call everytime. I have a few libraries that I need to compile for different processors. Each has a makefile which calls gcc to compile. Here is the best option I could come up with so far:Include a Makefile and define CC as gcc -mcpu=xxx.
View 4 Replies View RelatedGeneral :: DMESG Does Not Display The Kernel Driver Function PRINTK Message
Apr 7, 2010Kernel driver function was called via ioctl and returned success, but when I checked the kernel display buffer with dmesg the printk message was not there. Then when you do lsmod, the driver you were calling showed "used by zero". So it seems like the kernel driver was not accessed. In the kernel driver, I had many printk statements, but nothing printed in the buffer. if the driver get accessed and what could cause this?
View 1 Replies View RelatedProgramming :: Call C Executable Inside C
Jan 8, 2010i have only basic knowledge of C so guys plz help me...is C language support call the C executable inside the C ?example contect mainA.c have a many function define in the struct,when i compile mainA and make a executable the name is ( A ),can i use executable C inside the C <my C program call the executable ( A ) > .
View 9 Replies View RelatedProgramming :: Execvp System Call?
Apr 3, 2011in below program why was new_args[0], rather than the reference the_cmd, passed to the execvp system call?
Code:
/*
A _very_ limited shell program
[code]....
Programming :: Call The Executable File From The GUI?
Jun 1, 2010I have created a executable file using c and I have also created a GUI using GTK+. Now how can I call the executable file from the GUI with arguments passing to the executable file.
View 4 Replies View RelatedProgramming :: How To Call Fortran Subroutine From IDL
Sep 29, 2010There are examples everywhere about calling f77 subroutine from IDL, but I have not found any material about IDL calling fortran written in f90 way(free style). I tried the following example, but write the subroutines in free style. When I run the makefile, it gives an error 'undefined reference to main_'.
Code:
SUBROUTINE SUM_ARRAY(argc, argv) !Called by IDL
INTEGER*4 argc, argv(*) !Argc and Argv are integers
j = LOC(argc) !Obtains the number of arguments (argc)
[code]....
Software :: Script That Call A Java Program That Call A System Command?
Nov 29, 2010In practice I have a script that call a java program that call a linux system command. The script if I run it, from a shell functions well,so it is not a java problem. The problem come out when i put this script in a crontab schedulation. The result in this case is that java do not execute the system command. I think it depends on crontab
View 4 Replies View RelatedProgramming :: SSL_write Returns SSL_ERROR_SYSCALL, EOF On Second Call
Oct 8, 2010I am facing issue in my OPENSSL code. I have written openssl client. It sends request to the host and receives response for that request.
My problem is, it connects, sends request successfully to host at first time only in sencond attempt it fails on SSL_write(). where SSL_get_error() returns SSL_ERROR_SYSCALL error.
In that ERR_get_error() returns 0. man page shows "If ret == 0, an EOF was observed that violates the protocol".
Code Snippet.
w=SSL_write(SSLRequestData.ssl,c2s,c2sl);
switch(SSL_get_error(SSLRequestData.ssl,w))
{
case SSL_ERROR_NONE:
if(c2sl!=w)
[Code]....
Programming :: Clarification In The Select System Call?
Dec 8, 2010I have a process that forks, where the childs puts some data of random size and exits while the parent should get the data and does some manipulation.. here I have used a pipe for child to write the data and parent to read the data.. Child simply dumps the data, and the data is of any size even child and parent doesnt know.
I have used select in the parent to see whether there is any data coming on the reading end of the pipe.. if there is a data.. I copy into a buffer.. Im reading the data continusly when the child exits after closing the writing end of pipe. Parent gets blocked on the read part But my question is how parent know the other of pipe is closed when using the select call. In otherwords.. while using select in readfds, how would i know the other end has closed the pipe..
Programming :: C - System Call & Error Checking?
Sep 18, 2010I am trying to figure out how i would go about finding out where system call is made and error checking is not done. I have code below, if somebody can point me in the right direction where system call is made but error checking is not done.Quote:
#include "shell.h"
#include <stdio.h>
#include <string.h>
[code]....
Programming :: Call Shell Script In Perl Pm
Sep 4, 2010i used ldap for authentication.now i have a perl script that users use it for login(contact.pl),then this script calls a shell script(ip.sh) for create iptables chain.
when i call that into contact.pl ,it just prints: usr/sbin/iptables but ip chains didn't change.what is problem? whenever run ip.sh in bash it works correctly
Programming :: How To Use Bashrc To Redirect Executable Call?
May 24, 2011I need to redirect a /usr/sbin/sendmail command to $HOME/bin/msmtp .The sendmail command would be coming from a PHP5 application. I'm assuming the best way is to use .bashrc, but .htaccess is also available.The remote server is a shared web host which is running Debian 4.0.I do not have root access.I have SSH access.
View 2 Replies View RelatedProgramming :: How To Call Array Dynamically Into Script?
Jul 20, 2011I have a script which takes an array as an input to the file.ex: test.ksh -l <array_value>
Every time I dont get the same array name.EX: test.ksh -l x ; where x="a b"test.ksh -l y ; where y="c d"
I store the value I get in l in varaible myLvalue.Now indise my Script I want to run a for loop for thevalue I get in -l.If I write the for loop as below. I'm getting value x.However I'm expecting the loop to run for a and b.
Programming :: How To View New Added System Call
Aug 30, 2010I successfully added a new system call in CentOS Kernel but I don't know where to view it! My kernel version is -2.6.32.5
View 2 Replies View RelatedProgramming :: Process Of Creating System Call?
Mar 24, 2011how to create a new system call Linux? what is the process of creating ?my project is to create a system call for displaying owner of a file..where exactly we have to write the system call code? and where are the places need to change ?
View 5 Replies View RelatedProgramming :: Write A Bash Script To Call From A Terminal?
May 24, 2010I am trying to write a bash script to call from a terminal that will change the terminal title. I am using ubuntu 10.04. The script is meant to be used in the gnome-terminal.
Here is what I have:
Code: #! bin/bash
echo "New title: c"
read title
echo "33]0;$titl07c" -e
[Code]....
it doesn't work
I think the problem has to do with modifying PS1 inside the bash so i tried this:
Code: echo `export PS1="[e]1;u@h:wa]${debian_chroot:+($debian_chroot)}u@h:w$ "` and it still didn't work.
Programming :: C / C++ Scripts For Make Hunting Call In Open IMS
Nov 15, 2010I am a newbie in linux n programming, I need to use ubuntu for my research at school about building an IMS server use openims.
The problem is I need an additional script in C/C++ for my openims server to make an extension call. I hope one number can represent 3 client as receiver/operator. So, when I call the number, the server can forward the call to those three receiver by hunt.
1st call will be forward to the 1st receiver.
2nd call will be forward to the 2nd receiver.
3rd call will be forward to the 3rd receiver.
then, 4th call will be forward back to the 1st receiver, etc.
Programming :: Block On Write Call To TtyACM Device
Nov 1, 2010I have a write call to a ttyACM serial device that blocks after several hundreds bytes are written.I'm writing in ~25 byte chunks, so I have 5-8 successful writes, then the next write blocks forever.I can bypass the blocked call using select, but I can never call write again without closing and re-opening the port.
The serial port is opened correctly because I can read from it just fine. Write permissions are correct, and it's opened RW.The code is likely correct because I tested the same code using the same device on a pure RS-232 serial port, and it worked fine - no block. Is there anything to know about the linux ACM module?It's my understanding that write calls basically shouldn't block.They're supposed to return -1 if there's an error.
Programming :: Scenario For Call Shell Function From Mysql?
Apr 18, 2011I am trying a scenario for calling a shell script when ever a trigger is called. Can some one guide me how to achieve this scenario. Also it should passes the value from the table to the shell script. Can some one explain me along with the example.
View 2 Replies View RelatedProgramming :: Test New System Call Before Compiling Kernel?
Apr 2, 2009I want to test my system call that be goint to add to kernel, But when i finish compiling kernel, i found my system call code not work. the code i want to return the system time "struct timespec":
/*----------Start of mycall.c----------*/
#include <linux/linkage.h>
#include <linux/time.h>
#include <linux/kernel.h>
[code]....
so i want a method to test the new system call before compiling kernel.
