General :: In Linux Malloc() Initializes To Zero?
Nov 10, 2010#include<stdio.h>
#include<stdlib.h>
int main()
[code]...
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Ubuntu :: Karmic No Longer Initializes RAM At Startup?
Apr 22, 2010this computer (Yakumo model 331, 386 MB RAM) began running really slowly, crashing when multitasking, etc., but only in Ubuntu Karmic Koala. Kubuntu Karmic has no problem, nor does OpenSUSE. I finally figured out the problem when looking at system monitor: 0 bytes of swap! I have a 640 MB swap partition, which the other OS's are able to access, but Ubuntu no longer does unless I open a terminal and type in
Code:
sudo swapon /dev/sda6
If I do this, everything works fine until next time I boot up. Is there any way to fix this?
General :: Clearing Of Memory Allocated By Using Malloc/kmalloc/vmalloc
Aug 8, 2011Let's analyse this While registering a Char deriver to kernel think that we had allocated memory using any of malloc/kmalloc/vmalloc.
If we forgot to Free that allocated memory while unregistering, will that memory be allocated aside or kernel clears it...?
General :: Where Does The Kmalloc/Vmalloc/get_free_pages/malloc Allocates Memory
Jul 27, 2011clarrify the below points:1) Where does the Kmalloc/Vmalloc/get_free_pages/malloc Allocates memory in which space is it Kernel/User?2) Coming to Hardware Point of View is where Kernel/User Space Memory Allocates is it in RAM or any.?3) In Device Drivers, how Open Call get to know whether the hardware is connected/not?
View 6 Replies View RelatedUbuntu Installation :: Tomcat6 Initializes JRE_HOME, But Scratches It Before Use?
Sep 15, 2010hph@ubuntu:~$ sudo service tomcat6 stop
* Stopping Tomcat servlet engine tomcat6
hph@ubuntu:~$ sudo service tomcat6 start
* Starting Tomcat servlet engine tomcat6
Using CATALINA_BASE: /var/lib/tomcat6
Using CATALINA_HOME: /usr/share/tomcat6
Using CATALINA_TMPDIR: /tmp/tomcat6-tmp
[Code]...
General :: Moving From Paid Linux To Unpaid Linux CenOS - Red Hat (KVM Virtualization)
Dec 21, 2009if anyone of you have shifted using Paid Red Hat Linux with CentOS, and what are your experiences of moving from Paid Linux to Unpaid Linux CenOS. When do you suggest a person use Paid Linux and when to use Unpaid Linux?
View 1 Replies View RelatedGeneral :: Verifying Qlogic FC HBA Adapter In Linux ( SUSE Linux)
May 5, 2010i would just like to verify that the command
lspci would show the FC adapter installed
is there any other command that i can use to verify the FC adapter is being installed
General :: Migration Of C++ Application From SuSE Linux To Red Hat Linux
Feb 12, 2010I want to Migrate my C++ Application from SuSE Linux to Red Hat Linux.What impact analysis i should do?
View 3 Replies View RelatedGeneral :: How To Share A Folder From Linux To Linux
Mar 17, 2010how to share a folder from linux to linux systems and setting password to open that folder
View 14 Replies View RelatedProgramming :: C - How To Malloc For A Structure
Mar 7, 2010How do you malloc a struct in C? I have a structure of the form:
Code:
typedef struct child_req_to_parent
{
[code]...
Programming :: C - Malloc For A Void Pointer?
Mar 20, 2010So far I have this:
Code:
int mm_init (mm_t *MM, int hm, int sz) {
int i;
[code]...
Programming :: C - Malloc Causing Segfault?
Mar 20, 2010Code:
#include <stdio.h>
#include <stdlib.h>
[code]...
Programming :: C - Segfault During Malloc. How To Use The Pointers
Mar 23, 2010So the place where I'm having a problem is here:
Code:
typedef struct {
void **Mem_Chunk;
[code]...
Programming :: Why Malloc() Blocks/sleeps
Jun 2, 2010I have encountered this scenario wherein malloc does not return.
Code:
char * tmp;
rs = 100 to 40000 bytes
[code]...
Fedora :: Checking For GNU Libc Compatible Malloc... No \ Fix It?
Jul 13, 2010I'm trying to compile ink but with no luck. Here are the terminal output,
Code:
[trumpet@Trumpet-PC ink-0.5.1]$ ./configure
checking for a BSD-compatible install... /usr/bin/install -c
[code]...
OpenSUSE :: Getting A Weird Compilation Error With Malloc.h?
Aug 3, 2010I am getting a weird compilation error with malloc.h/usr/include/malloc.h:86: error: expected ')' before '__size'This is what the code looks like inside malloc.hextern void *(*__morecore) __MALLOC_PMT ((ptrdiff_t __size))When I did some googling, it was stating that ptrdiff_t was not defined; but, it is.#define __malloc_ptrdiff_t ptrdiff_t
View 4 Replies View RelatedServer :: Malloc-64 Memory Leak/trashing?
Mar 2, 2011I'm afraid I have a huge issue with my newest Fedora 14 server. I recently migrated to Fedora 14 from Centos 5, which was very stable, but had ancient packages and libraries and my users were revolting...The machine is a HP ProLiant 360 G7, with 12G RAM and 6 SAS drives in RAID 5.After I migrated to Fedora 14, I noticed that for some reason, during the course of about 24 hours, all usable RAM "disappears" and applications are forced down to swap space. Needless to say I didn't have this issue on CentOS.
The server does heavy IO as per it's function (it's a heavily loaded file processing server and user simulation computing station among other things, which causes lots of random IO), so I thought it may be the cache, but then I realized it cannot be - because obviously Linux will use onyl "unused" RAM for caching and frees it up as soon as an app need it. Then, I thought to check the "slabtop" to see what's going on in Kernel memory. Unfortunately I don't have the screenshot from the time just before the latest crash, but there's a certain value displayed by slabtop, which slowly, byte-from-byte creeps over all available RAM, eventually forcing applications down to the swap. This is malloc-64, and as you can see from the bellow copy-paste, it's building up again even now...
Code:
Active / Total Objects (% used) : 9118075 / 9153600 (99.6%)
Active / Total Slabs (% used) : 152157 / 152157 (100.0%)
[code]...
Programming :: Malloc Fails To Allocate Memory
May 7, 2011I am developing a code where I need to store the planes of an object in a tree & also i need to store it in a list for further processing ... when I try to allocate using malloc the memory allocation when i checked this in internet , I came to know that it may because the memory that I am trying to allocate may be more than the size_t variable.
View 9 Replies View RelatedUbuntu Installation :: Checking For GNU Libc Compatible Malloc?
Feb 25, 2010I have been trying to fix this problem for 3 days, any ideas before I jump through the window (not the bill gates one)?I am using ubuntu 9.10 and running a ./configure.
View 3 Replies View RelatedServer :: User-specified Malloc Function Returned NULL?
Dec 23, 2010Our Fedora-ds was down for some reason,And I got these logs:
[23/Dec/2010:18:59:32 +0200] - libdb: User-specified malloc function returned NULL
[23/Dec/2010:18:59:32 +0200] - id2entry error 12
[23/Dec/2010:18:59:32 +0200] - id2entry get error 12
[code]...
Software :: Glib Detected Malloc Memory Corruption?
Jul 21, 2011When I am trying to run my application on RHEL 6 (Kernel 2.6*), I am getting the following error.*** glib detected *** ./corenms:malloc(); memory corruption : 0x086691d0 ***
View 4 Replies View RelatedProgramming :: Hooking Calls To New/malloc Delete/free?
Jan 11, 2010Is there a way to hook calls to new/malloc, delete/free in C++? I tried the following methods: LD_PRELOAD -> fails for malloc, because dlsym seems to depend on malloc -Wl,--wrap,malloc -> doesn't work for 'new' gcc hooks -> doesn't work always, e.g. for uclibc there are no hooks Are there any other methods I could try?
View 2 Replies View RelatedFedora :: Insert Unlock Code In Linux Using Any Linux Tool?
Apr 16, 2010I have learnt that the network locked huawei modems may be unlocked to use any sim card bu getting a special unlock code and it should ask for it when a "foreign" SIM card is inserted. This procedure works well in Windows, but in Linux where I use wvdial, I dont get prompted for this unlock code. Does anyone know how to insert the unlock code in Linux using any Linux tool (GAMMU/GNOKII/Minicom etc)?
View 2 Replies View RelatedNetworking :: Unable To Ssh Linux Box From Other Linux Boxes
Mar 12, 2010I am unable to ssh a Linux box from other Linux boxes; also tried to window putty.Although I am getting the password prompt instantaneously.So far, by comparing logs of other server, I am just able figure out that "debug2: callback start" is not coming in ssh -vvv logs.
View 2 Replies View RelatedProgramming :: Memory Leaks - Glibc Detected - ./SuffixTree: Malloc() - Memory Corruption - 0x00
Mar 21, 2011I am new to C and linux. My code below does arbitary writes but I cant figure out where or how it does it.
I am calling the insertNode() function with seq = 'MISSISSPPI$' and alphabets = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ$'
Code:
Weird behaviour I should mention is that when I check for NULL pointer in node->child[index], the unassigned values are not null anymore, they point to arbitary memory.
General :: Possible To Use Linux As OS On PC?
Apr 4, 2011I am working on a friend's computer for which he "lost" the operating system. This friend has very little extra money right now, so my classmate suggested I try loading Linux on my friend's PC.I am wondering if it will work. The PC is a Compaq Presario SR5610F with an AMD processor. I have been told that Linux doesn't care much for AMD.Does anybody know if it will be possible to use Linux as an OS on this PC?I'm looking for a cheap(er) alternative than Windows. Friend is balking at Windows 7. The machine had Vista loaded in it when purchased, then the son loaded XP on it, without removing Vista. They have been having issues with crashing for some time now. The recovery disks are supposed to have XP on them, but I don't think that is so, and when I tried running those disks, the computer balked. I finally worked around and got XP to install, using a disk from an old computer, but the code would not work, and nobody could remember the computer's password and user name.I want to start fresh with this machine, and install a basic, working OS. Am leary about XP on eBay or some such, but they really don't have the funds to purchase anything over $100.00.
View 10 Replies View RelatedNetworking :: Linux Router / Configure Linux CentOS 5 As A Router Using Iptable?
Nov 27, 2009I want to configure linux CentOS 5 as a router using iptable, .Im new in linux so I need the steps to do that
View 5 Replies View RelatedGeneral :: Difference Between Linux And BSD
Mar 12, 2010I want to know the differences between Linux and BSD .Which is efficient. Because they have some of the similarities with them.
View 3 Replies View RelatedGeneral :: Going Linux On Somewhat Old Netbook
Feb 23, 2010I have a netbook, L500X Geode (498MHz) 480Mb Ram and 40Gb Hdd partitioned into two 20 Gb bits, and I want to install linux on it as a dual boot along side the winxp that is already in place. I tried the Netbook remix of the latest Ubuntu and Fedora 12 with no success at all. I'm beginning to wonder if this tiny old machine can run linux at all.
View 5 Replies View RelatedGeneral :: How To Burn Linux To USB?
Feb 6, 2011I have notebook Sony Vaio model PCG-4T1P and I never used linux before, and as you all know that..there's no CD-ROM so my question is :
1- How i can burn linux to USB?
2- When i will install my drivers, I will get errors or defects? and if I will get errors how i can find drivers which will work?
3- What kind of linux you all prefer to use it?
