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-<title>What's new in the Linux kernel - DebConf 2013</title>
+<title>What's new in the Linux kernel - DebConf 2014</title>
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-<h1>DebConf 2013</h1>
+<h1>DebConf 2014</h1>
 <h2>What's new in the Linux kernel</h2>
 </div>
 
@@ -50,9 +50,231 @@
 <div class="slide">
 <h1>What's new in the Linux kernel</h1>
 <object data="tux-debian.svg" width="35%" align="right"></object>
+<h2>and what's missing in Debian</h2>
 <h3>Ben&nbsp;Hutchings</h3>
 </div>
 
+<div class="slide">
+  <h1>Ben Hutchings</h1>
+  <ul>
+    <li>
+      Professional software engineer by day, Debian developer by night
+    </li>
+    <li>
+      Regular Linux contributor in both roles since 2008
+    </li>
+    <li>
+      Working on various drivers and kernel code in my day job
+    </li>
+    <li>
+      Debian kernel team member, now doing most of the unstable
+      maintenance aside from ports
+    </li>
+    <li>
+      Maintaining Linux 3.2.<var>y</var> stable update series on
+      kernel.org
+    </li>
+  </ul>
+</div>
+
+<div class="slide">
+  <h1>Linux releases early and often</h1>
+  <ul class="incremental">
+    <li>
+      Linux is released about 5 times a year (plus stable updates
+      every week or two)
+      <ul>
+	<li>
+	  ...though some features aren't ready to use when they firat
+	  appear in a release
+	</li>
+      </ul>
+    </li>
+    <li>
+      Since my talk last year, Linus has made 6 releases (3.11-3.16)
+    </li>
+    <li>
+      Good news: we have lots of new kernel features in testing/unstable
+    </li>
+    <li>
+      Bad news: some of them won't really work without new userland
+    </li>
+  </ul>
+</div>
+
+<div class="slide">
+  <h1>Team device driver [3.3]</h1>
+  <ul class="incremental">
+    <li>
+      Alternative to the bonding driver - simpler, modular, high-level
+      control deferred to userland
+    </li>
+    <li>
+      Basic configuration can be done with <tt>ip</tt>, but it really
+      needs new tools - <tt>teamd</tt>, <tt>teamnl</tt>, etc.
+    </li>
+    <li>
+      Make it work: see
+      <a href="http://bugs.debian.org/695850">http://bugs.debian.org/695850</a>
+    </li>
+  </ul>
+</div>
+
+<div class="slide">
+  <h1>Transcendent memory [3.0-3.5]</h1>
+  <ul class="incremental">
+    <li>
+      Abstract storage for memory pages, expected to be slower than
+      regular memory but faster than disk
+    </li>
+    <li>
+      Can provide a second layer of page cache (cleancache and frontswap)
+    </li>
+    <li>
+      Pages stored by hypervisor (Xen), compressed local memory
+      (zcache) or cluster of machines (RAMster)
+    </li>
+    <li>
+      Not yet enabled in Debian kernels, and needs some thought about
+      configuration
+    </li>
+    <li>
+      Make it work: see
+      <a href="https://lwn.net/Articles/454795/">https://lwn.net/Articles/454795/</a>
+      and send proposal to debian-kernel
+    </li>
+  </ul>
+</div>
+
+<div class="slide">
+  <h1>New KMS drivers [3.3-3.10]</h1>
+  <ul class="incremental">
+    <li>
+      DRM/KMS drivers added for old, new and virtual hardware -
+      AST, DisplayLink, Hyper-V, Matrox G200, QEMU Cirrus
+    </li>
+    <li>
+      Should be more robust than purely user-mode drivers, and
+      compatible with Secure Boot
+    </li>
+    <li>
+      Current X drivers don't work with these, so the kernel drivers
+      are disabled for now
+    </li>
+    <li>
+      Make it work: join the X Strike Force and package the new X
+      drivers
+    </li>
+  </ul>
+</div>
+
+<div class="slide">
+  <h1>Module signing [3.7]</h1>
+  <ul class="incremental">
+    <li>
+      Kernel modules can be signed at build time, and the kernel
+      configured to refuse loading unsigned modules
+    </li>
+    <li>
+      Necessary but not sufficient to implement Secure Boot -
+      we would also need signed kernel images and some other
+      restrictions when booted in this mode
+    </li>
+    <li>
+      Make Secure Boot work: come to the meeting on Tuesday
+    </li>
+  </ul>
+</div>
+
+<div class="slide">
+  <h1>More support for discard</h1>
+  <ul class="incremental">
+    <li>
+      Flash devices (and thin-provisioned SANs) can be more efficient
+      if the filesystem 'discards' unused disk space
+    </li>
+    <li>
+      Requires support in hardware, driver, filesystem and any layered
+      device drivers - e.g. LVM, RAID (added in 3.7)
+    </li>
+    <li>
+      Must be explicitly enabled, but d-i doesn't do this by default
+    </li>
+    <li>
+      Make it work: fix <a href="http://bugs.debian.org/690977">http://bugs.debian.org/690977</a>
+    </li>
+  </ul>
+</div>
+
+<div class="slide">
+  <h1>More support for containers</h1>
+  <ul class="incremental">
+    <li>
+      Containers are lightweight VMs - run on the same kernel as host,
+      but with limited privileges and resources
+    </li>
+    <li>
+      Previously done by OpenVZ and Linux-VServer; gradually being
+      reimplemented upstream
+    </li>
+    <li>
+      User namespaces (added in 3.7) support the existence of a
+      <tt>root</tt> user inside the container that is unprivileged
+      outside the container
+    </li>
+    <li>
+      Currently somewhat experimental, and requires filesystem
+      changes which haven't been done for XFS
+    </li>
+    <li>
+      Make user namespaces work: send patches to upstream XFS
+      developers (this one's hard)
+    </li>
+  </ul>
+</div>
+
+<div class="slide">
+  <h1>bcache [3.10]</h1>
+  <ul class="incremental">
+    <li>
+      Turns a fast block device into a cache for a larger, slower
+      device (see also: dm-cache, EnhanceIO)
+    </li>
+    <li>
+      Needs its own set of userland tools
+    </li>
+    <li>
+      Make it work:
+      see <a href="http://bugs.debian.org/708132">http://bugs.debian.org/708132</a>
+      (maybe just needs a sponsor)
+    </li>
+  </ul>
+</div>
+
+<div class="slide">
+  <h1>ARMv7 multiplatform</h1>
+  <ul class="incremental">
+    <li>
+      Until recently, each ARM kernel image could support only a small
+      set of different chips
+    </li>
+    <li>
+      Debian 'armmp' kernel now supports ARMv7 SoCs from Calxeda,
+      Freescale and Marvell, and others should be supported soon
+    </li>
+    <li>
+      Debian could run on a much larger range of ARM hardware - but we
+      need installer and boot loader support to make this easy
+    </li>
+    <li>
+      Make it work: join the ARM porters and d-i team
+    </li>
+    <li>
+      Make the GPUs work: join a reverse-engineering project
+    </li>
+  </ul>
+</div>
+
 <div class="slide">
   <h1>Questions?</h1>
 </div>
