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[Translated] Linux Kernel 3.18 Released, This Is What’s New
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Linux Kernel 3.18 Released, This Is What’s New
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================================================================================
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TuxlogoA new month means a new stable release of the Linux Kernel and today Linus Torvalds has obliged, [announcing the immediate availability of Linux 3.18][1].
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Posted on the Linux Kernel Mailing List, Torvalds explains that while a few niggling issues persist in 3.17 for a small number of users, there was ‘**absolutely no point in having everybody else twiddling their thumbs when a couple of people are actively trying to bisect an older issue**’.
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### What’s New In Linux 3.18? ###
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The Linux 3.18 kernel is amped up with some of the latest improvements in hardware support, power efficiency, bug fixes and reliability.
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As ever, these span the breadth of comprehension, going from bamboozling — e.g., multi buffer operations for cryptographic layers — to the air-punchingly understandable, like support for the Razer Sabertooth gamepad.
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We’ve compiling some of the notable changes made in this release below. It’s far, far, far from being exhaustive, and cherry picks the more relatable.
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- Nouveau (free Nvidia GPU driver) now supports basic DisplayPort audio
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- Support for the Razer Sabertooth gamepad, maps it as Xbox 360 controller
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- Xilinx USB2 peripherals
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- Touchscreen support for Microchip AR1021 i2c, PenMount 6000 touch
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- Audio codecs: Cirrus Logic CS35L32, Everest ES8328and Freescale ES8328
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- Audio support: Generic Freescale sound cards, Analog Devices SSM4567 audio amplifier
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- Various filesystem improvements, including Btrfs and F2FS
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- DCTCP congestion control algorithm now supported
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- JIT compilation of eBPF programs on 64-bit builds
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- “Tinification” patches to help developers compile leaner, smaller kernels
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#### Installing Linux 3.18 on Ubuntu ####
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Although classed as stable and bringing numerous new changes to the table, don’t feel in a rush to try and upgrade your own OS to it anytime soon. Unless you’re adept at handling the sort of monitor-smashing, CPU-charring, rage-inducing issues that arise from swapping out the engine in your OS motor, you shouldn’t.
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If you insist, you’ll find source packages available at the kernel.org website.
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- [Download the Linux Kernel Source Packages][2]
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A mainline kernel archive is maintained by Canonical to provide builds of newer Linux kernels for use by Ubuntu developers. But, and you really should note this, these are not intended for end users, despite what you may read elsewhere. With no guarantee or support, use at your own risk.
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- [Visit the Ubuntu Kernel Mainline Archive][3]
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--------------------------------------------------------------------------------
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via: http://www.omgubuntu.co.uk/2014/12/linux-kernel-3-18-released-whats-new
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作者：[Joey-Elijah Sneddon][a]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译，[Linux中国](http://linux.cn/) 荣誉推出
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[a]:https://plus.google.com/117485690627814051450/?rel=author
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[1]:https://lkml.org/lkml/2014/12/7/202
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[2]:https://www.kernel.org/pub/linux/kernel/v3.x/
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[3]:http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D
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、Linux 3.18 内核发布了，下面的是更新的内容
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================================================================================
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新的一月意味着新的稳定版Linux内核的发布，今天Linus Torvalds[宣布Linux 3.18 很快就会发布了][1]。
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Torvalds在Linux内核邮件列表中解释到，由于在3.17中还存在几个令一小部分用户烦心的问题，‘**绝不可以在一些人积极解决老问题时其他人无所事事。**’
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### Linux 3.18中有什么新的？ ###
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Linux 3.18内核主要致力于硬件支持、电源效率、bug修复和可靠性。
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如往常一样，这些内容跨越很大，容易让人迷惑 。比如：加密层多重缓冲操作 - 到气冲感知， 就像对雷蛇游戏手柄的支持。
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下面我们收集了这个版本的重要的改变。这远远不是所有的，只是选取了一些更相关的内容。
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- Nouveau (免费 Nvidia GPU 驱动) 现在支持基础 DisplayPort 音频
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- 对雷蛇游戏手柄的支持，用在Xbox 360上
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- Xilinx USB2 外设
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- 对Microchip AR1021 i2c、PenMount 6000 touch的触摸屏支持。
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- 音频编码: Cirrus Logic CS35L32、 Everest ES8328and Freescale ES8328
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- 音频支持: 通用飞思卡尔声卡, A模拟SSM4567音频放大器
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- 不同的文件系统提升, 包括 Btrfs 和 F2FS
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- 现在支持了DCTCP拥塞控制算法
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- JIT 编译64位 eBPF程序
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- “Tinification” 帮助开发人员编译更精简更小的内核
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#### 在Ubuntu上安装 Linux 3.18 ####
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虽然声称是稳定版并带来了大量的更新，但不要马上急着升级你的系统。除非你擅长处理监控异常，CPU过热、和其他各种系统报出的异常。
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如果你坚持更新，你可以在kernel.org网站上找到源码包。
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- [下载Linux内核源码包][2]
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有一个由Canonical维护的最新Linux内核归档。尽管你可能在其他地方看到过，但是，请注意，这不是针对终端用户的。没有任何保证与支持，你自己承担风险。
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- [访问Ubuntu内核主线归档][3]
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--------------------------------------------------------------------------------
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via: http://www.omgubuntu.co.uk/2014/12/linux-kernel-3-18-released-whats-new
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作者：[Joey-Elijah Sneddon][a]
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译者：[geekpi](https://github.com/geekpi)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译，[Linux中国](http://linux.cn/) 荣誉推出
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[a]:https://plus.google.com/117485690627814051450/?rel=author
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[1]:https://lkml.org/lkml/2014/12/7/202
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[2]:https://www.kernel.org/pub/linux/kernel/v3.x/
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[3]:http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D
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