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   </ul>
 </div>
 
+<div class="slide">
+  <h1>User-space lockdep [3.14]</h1>
+  <ul>
+    <li>
+      Kernel threads and interrupts all run in same address space,
+      using several different synchronisation mechanisms
+    </li>
+    <li>
+      Easy to introduce bugs that can result in deadlock, but hard to
+      reproduce them
+    </li>
+    <li>
+      Kernel's 'lockdep' system dynamically tracks locking operations
+      and detects <em>potential</em> deadlocks
+    </li>
+    <li>
+      Now available as a userland library!  Except we need to package
+      it (build from linux-tools source package)
+    </li>
+  </ul>
+</div>
+
+<div class="slide">
+  <h1>arm64 and ppc64el ports</h1>
+  <ul class="incremental">
+    <li>
+      'arm64' architecture was added in Linux 3.7, but was not yet
+      usable, and no real hardware was available at the time
+    </li>
+    <li>
+      Upstream Linux arm64 kernel, and Debian packages, should now run
+      on emulators and real hardware
+    </li>
+    <li>
+      'powerpc' architecture has been available for many years,
+      but didn't support kernel running little-endian
+    </li>
+    <li>
+      Linux 3.13 added little-endian kernel suport, along with new
+      userland ELF ABI variant - we call it ppc64el
+    </li>
+    <li>
+      Both ports now being bootstrapped in unstable and are candidates
+      for jessie release
+    </li>
+  </ul>
+</div>
+
 <div class="slide">
   <h1>Questions?</h1>
 </div>