Notes by voodoo
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Created by voodoo on May 22, 2012 12:26:41
Last update: May 22, 2012 12:26:41
My program core dumped but there was no core file. The problem was that the core file size was 0:
$ ulimit -a
core file size (blocks, -c...
Use ulimit to enable it:
$ sudo bash
# ulimit -c unlimited
Created by voodoo on August 14, 2011 15:42:43
Last update: August 14, 2011 15:42:43
When I ran this code snippet with strace :
f = fopen("TZ", "rb");
fseek(f, 0, SEEK_END);
...
I saw ENOTTY error with uClibc :
open("TZ", O_RDONLY|O_LARGEFILE) = 3
ioc...
With the normal gnu libc , there's no such error:
open("TZ", O_RDONLY) = 3
fstat64...
There was no error running the program. But for some reason, uClibc did a ioctl call when it opened a file, and handled it appropriately.
Created by voodoo on August 12, 2011 14:43:57
Last update: August 14, 2011 15:19:21
#include <stdio.h>
#include <stdlib.h>
i...
Created by voodoo on August 12, 2011 14:44:45
Last update: August 12, 2011 14:44:45
#include <fstream>
#include <iostream>
i...
Created by voodoo on August 12, 2011 12:47:50
Last update: August 12, 2011 13:03:00
Use fstream and seekg :
#include <iostream>
#include <fstream>
i...
With stat :
#include <iostream>
#include <sys/stat.h>
...
Created by voodoo on August 08, 2011 12:28:16
Last update: August 08, 2011 12:28:16
$ sudo yum whatprovides pcre-devel
Loaded plugi...
Created by voodoo on March 10, 2011 11:08:45
Last update: March 10, 2011 11:09:18
Looks like for Linux fdisk , cylinders as display units was deprecated, using sectors is the new way.
# fdisk -v
fdisk (util-linux-ng 2.18)
# ...
Notice that cylinder numbers actually overlap for the last 2 partitions.
Created by voodoo on March 07, 2011 15:24:26
Last update: March 07, 2011 15:24:26
# yum install mysql-server
Loaded plugins: pres...
Created by voodoo on March 04, 2011 12:20:34
Last update: March 04, 2011 12:20:34
# yum whatprovides libmpfr.so.1
Loaded plugins:...
Created by voodoo on March 04, 2011 12:16:52
Last update: March 04, 2011 12:16:52
# yum whatprovides libgmp
Loaded plugins: prest...
