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Search found 159 results on 7 pages for 'glibc'.

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• Double Free inside of a destructor upon adding to a vector

  - by Shawn B

  Hey, I am working on a drum machine, and am having problems with vectors. Each Sequence has a list of samples, and the samples are ordered in a vector. However, when a sample is push_back on the vector, the sample's destructor is called, and results in a double free error. Here is the Sample creation code: class XSample { public: Uint8…

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• Epoll in EPOLLET mode returning 2 EPOLLIN before reading from the socket

  - by Arkaitz Jimenez

  The epoll manpage says that a fd registered with EPOLLET(edge triggered) shouldn't notify twice EPOLLIN if no read has been done. So after an EPOLLIN you need to empty the buffer before epoll_wait being able to return a new EPOLLIN on new data. However I'm experiencing problems with this approach as I'm seeing duplicated EPOLLIN events for…

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• linux new/delete, malloc/free large memory blocks

  - by brian_mk

  Hi folks, We have a linux system (kubuntu 7.10) that runs a number of CORBA Server processes. The server software uses glibc libraries for memory allocation. The linux PC has 4G physical memory. Swap is disabled for speed reasons. Upon receiving a request to process data, one of the server processes allocates a large data buffer (using the…

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• C headers: compiler specific vs library specific?

  - by leonbloy

  Is there some clear-cut distinction between standard C *.h header files that are provided by the C compiler, as oppossed to those which are provided by a standard C library? Is there some list, or some standard locations? Motivation: int this answer I got a while ago, regarding a missing unistd.h in the latest TinyC compiler, the author…

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• What could cause these Apache crash errors ?

  - by jacobanderssen

  Hello guys. I had a server crash several days ago. I use Cacti to keep stats: at the time when the server crashed, a huge spike from Load 1 to Load 200 occurred, with over 800 processes in the run queue ( from 300 average). Upon checking /var/log/httpd I notice this: * glibc detected /usr/sbin/httpd: double free or corruption (out):…

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• A trivial Python SWIG error question

  - by Alex

  I am trying to get Python running with swig to do C/C++. I am running the tutorial here, 'building a python module'. When I do the call gcc -c example.c example_wrap.c -I /my_correct_path/python2.5 I get an error: my_correct_path/python2.5/pyport.h:761:2: error: #error "LONG_BIT definition appears wrong for platform (bad gcc/glibc…

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• whether rand_r is real thread safe?

  - by terry

  Well, rand_r function is supposed to be a thread safe function. However, by its implementation, I cannot believe it could make itself not change by other threads. Suppose that two threads will invoke rand_r in the same time with the same variable seed. So read-write race will occur. The code rand_r implemented by glibc is listed below.…

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• R from java with no graphics: is it worth moving to JRI

  - by LH

  I have a system set up that's been happily running R from a java servlet, spawning processed & hooking into the process's stdin, stdout, and stderr streams, as in the second andwer to this question. After a system upgrade (that included glibc), the input is no longer reaching the R process.* Until now, 'R --vanilla --slave -f…

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• Getting a `free()` error when deallocating with `delete` in the backtrace

  - by wonko

  I got the following error from gdb: *** glibc detected *** /.root0/autohome/u132/hsreekum/ipopt/ipopt/debug/Ipopt/examples/ex3/ex3: free(): invalid next size (fast): 0x0000000120052b60 *** Here's the backtrace: #0 0x000000555626b264 in raise () from /lib/libc.so.6 #1 0x000000555626cc6c in abort () from /lib/libc.so.6 #2 …

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• How do I install Geomatica?

  - by Chethan S.

  I wanted to try the latest version(trial) of Geomatica, Geomatica 2012 on Ubuntu 11.10 beta. When I tried to run the bin file I got a whole list of dependencies. It also seems that it is a RPM package. Instead of going through each entry manually, is there any easy way to search and install a list of dependencies? Here is the…

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• Stack Overflow problem in a recursive program in C

  - by Adi

  Hi all, I am getting a stack overflow in one of the recursive functions i am running.. Here is the code.. void* buddyMalloc(int req_size) { // Do something here return buddy_findout(original_index,req_size); // This is the recursive call } void *buddy_findout(int current_index,int req_size) { char *selected…

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• C++ Program Always Crashes While doing a std::string assign

  - by bbazso

  I have been trying to debug a crash in my application that crashes (i.e. asserts a * glibc detected free(): invalid pointer: 0x000000000070f0c0 **) while I'm trying to do a simple assign to a string. Note that I'm compiling on a linux system with gcc 4.2.4 with an optimization level set to -O2. With -O0 the application no…

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• bin_at in dlmalloc

  - by chunhui

  In glibc malloc.c or dlmalloc It said "repositioning tricks"As in blew, and use this trick in bin_at. bins is a array,the space is allocated when av(struct malloc_state) is allocated.doesn't it? the sizeof(bin[i]) is less then sizeof(struct malloc_chunk*)? Who can describe this trick for me? I can't understand the bin_at…

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• Implications of trying to double free memory space in C

  - by SidNoob

  Here' my piece of code: #include <stdio.h> #include<stdlib.h> struct student{ char *name; }; int main() { struct student s; s.name = malloc(sizeof(char *)); // I hope this is the right way... printf("Name: "); scanf("%[^\n]", s.name); printf("You Entered: \n\n");…

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• Is it OK to put a standard, pure C header #include directive inside a namespace?

  - by mic_e

  I've got a project with a class log in the global namespace (::log). So, naturally, after #include <cmath>, the compiler gives an error message each time I try to instantiate an object of my log class, because <cmath> pollutes the global namespace with lots of three-letter methods, one of them being the…

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• how to uninstall mariadb and re-install mysql ? Mysql install turns into mariadb install

  - by Suma

  I recently upgraded my centos system via the desktop. mistake! I had mariadb, phpmyadmin working just fine before - but after the upgrade they stopped. I frantically googled and tried to follow some tutorials about mariadb * mysql reinstall untill I came to this one: …

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• MongoDB Crashed,Not able to start it again

  - by Kevin Parker

  Mongodb fail to start after showing this error...and not able to start it again..?Can u help me find out? *** glibc detected *** /usr/lib/mongodb/mongo: corrupted double-linked list: 0x000000000f750b50 *** Mon Nov 26 19:01:29 mongo got signal 11 (Segmentation…

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• multi-user rvm gem install failure when called from CloudFormation::Init

  - by Peter Mounce

  I've taken an Amazon Linux AMI (based on CentOS) and installed RVM (1.10.3) to it in multi-user fashion (see {1} below). I used that to install ruby 1.9.3-p125, rubygems 1.8.17, and bundler 1.1 as the baseline requirements for most things I'm going to be using the…

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• Setting up home DNS with Ubuntu Server

  - by Zeophlite

  I have a webserver (with static IP 192.168.1.5), and I want to have my machines on my local network to be able to access it without modifying /etc/hosts (or equivalent for Windows/OSX). My router has Primary DNS server 192.168.1.5 Secondary DNS server 8.8.8.8…

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• DHCPv6: Provide IPv6 information in your local network

  Even though IPv6 might not be that important within your local network it might be good to get yourself into shape, and be able to provide some details of your infrastructure automatically to your network clients. This is the second article in a series on IPv6…

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• How to access GNU Xnee

  - by Gaurav Butola

  I have installed GNU Xnee (Gnee an OS X automator alternative) from the Software Centre but now I cant find it anywhere in the menus. Here is the output when I run gnee in the terminal gaurav@gaurav-HCL-ME-Laptop:~$ gnee (gnee:6864): Gtk-WARNING **:…

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• DNS no longer works after server reboot

  - by Burning the Codeigniter

  Strangely enough, when I reboot my Ubuntu 12.04 server, the DNS no longer works, which makes the domain unavailable to access to my site. Normally the DNS should be working after a reboot, but this doesn't happen anymore. I use nginx to serve content,…

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• Why does apt-get install Skype easily while aptitude complains about MAJOR dependency errors?

  - by Prateek

  I was trying to install Skype on Ubuntu 13.04, from the Canonical repositories. With apt-get it worked easily, while aptitude had a huge problem with dependencies and proposed a complicated solution. Why is this so? Why doesn't aptitude offer whatever…

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• hello-1.mod.c:14: warning: missing initializer (near initialization for '__this_module.arch.unw_sec_init')

  - by Sompom

  I am trying to write a module for an sbc1651. Since the device is ARM, this requires a cross-compile. As a start, I am trying to compile the "Hello Kernel" module found here. This compiles fine on my x86 development system, but when I try to…

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• CodePlex Daily Summary for Monday, January 24, 2011

  CodePlex Daily Summary for Monday, January 24, 2011Popular ReleasesDeveloper Guidance - Onboarding Windows Phone 7: Fuel Tracker Source: Release NotesThis project is almost complete. We'll be making small updates to the code and…

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