【现象】有终端输入用户名,密码后,桌面环境启动失败。
【报错】log文件中显示:
(EE)
Fatal server error:
(EE) xf86OpenConsole: VT_ACTIVATE failed: Operation not permitted
【原因】由xorg升级引起,具体描述如下:
FS#41257 - [xorg-server] take ad...
分类:
系统相关 时间:
2014-08-19 11:03:44
阅读次数:
249
We have seen built-in functions that take a variable number of arguments. For example range can take one, two or three arguments.It is possible to wri...
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其他好文 时间:
2014-08-17 16:52:32
阅读次数:
272
最近工作中看见一个同事的代码是关于ArrayBlockingQueue方面的使用,然后引出take()和poll()的小小的区别,当然他实现方式是没有错.但是由于选择不当有性能的开销,所以我想这里整理一下关于ArrayBlockingQueue
的理解,纯技术交流.有不正确的地方请谅解.下面对源码做一个导读.首先
ArrayBlockingQueue是一个基于数组、先进先出、线程安全的集合类...
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其他好文 时间:
2014-08-17 13:08:12
阅读次数:
770
Description
You and your friend are playing a game in which you and your friend take turns removing stones from piles. Initially there are
N piles with a1,
a2, a3,..., aN number of stones. On eac...
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其他好文 时间:
2014-08-17 11:46:42
阅读次数:
172
/* 启动MySQL */net start mysql/* 连接与断开服务器 */mysql -h 地址 -P 端口 -u 用户名 -p 密码/* 跳过权限验证登录MySQL */mysqld --skip-grant-tables-- 修改root密码密码加密函数password()update...
分类:
数据库 时间:
2014-08-16 22:17:51
阅读次数:
254
首先从https://github.com/alibaba/dubbo/archive/master.zip下载最新的dubbo源码包到本地某个目录, 解压出来:cmd进入该目录:执行:mvn clean install –Dmaven.test.skip下载所需的jar包,这时也会下载本地存放仓库...
分类:
编程语言 时间:
2014-08-15 17:45:19
阅读次数:
441
Description
In order to make their sons brave, Jiajia and Wind take them to a big cave. The cave has n rooms, and one-way corridors connecting some rooms. Each time, Wind choose two rooms x and y, an...
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其他好文 时间:
2014-08-15 00:06:46
阅读次数:
331
最近做的项目一直在用laraval框架,有些地方确实很方便,但是有些方面实在是太坑了,就比如这次在数据库里,官方文档写的是Take note thatemailis not a required option, it is merely used for example. You should us...
分类:
数据库 时间:
2014-08-14 20:28:39
阅读次数:
226
DescriptionChristine and Matt are playing an exciting game they just invented: the Number Game. The rules of this game are as follows.The players take...
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其他好文 时间:
2014-08-14 20:00:10
阅读次数:
244
In an attempt to remove duplicate elements from list, I go to the lengths to take advantage of methods in the java api. After investiagting the document of java api, the result is so satisfying that ...
分类:
编程语言 时间:
2014-08-14 01:30:17
阅读次数:
256