Merge remote-tracking branch 'fp/master'

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	open_issues/secure_file_descriptor_handling.mdwn

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+[[!meta copyright="Copyright © 2013 Free Software Foundation, Inc."]]
+
+[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable
+id="license" text="Permission is granted to copy, distribute and/or modify this
+document under the terms of the GNU Free Documentation License, Version 1.2 or
+any later version published by the Free Software Foundation; with no Invariant
+Sections, no Front-Cover Texts, and no Back-Cover Texts.  A copy of the license
+is included in the section entitled [[GNU Free Documentation
+License|/fdl]]."]]"""]]
+
+[[!taglink open_issue_documentation]]: update [[sound]] page.
+
+
+# IRC, freenode, #hurd, 2013-09-01
+
+    <rekado> I'm new to the hurd but I'd love to learn enough to work on sound
+      support.
+    <rekado>
+      http://darnassus.sceen.net/~hurd-web/community/gsoc/project_ideas/sound/
+      says drivers should be ported to GNU Mach as a first step.
+    <rekado> Is this information still current or should the existing Linux
+      driver be wrapped with DDE instead?
+    <auronandace> if i recall correctly dde is currently only being used for
+      network drivers. i'm not sure how much work would be involved for sound
+      or usb
+
+
+## IRC, freenode, #hurd, 2013-09-02
+
+    <rekado> The sound support proposal
+      (http://darnassus.sceen.net/~hurd-web/community/gsoc/project_ideas/sound/)
+      recommends porting some other kernel's sound driver to GNU Mach.  Is this
+      still current or should DDE be used instead?
+    <pinotree> rekado: dde or anything userspace-based is generally preferred
+    <braunr> rekado: both are about porting some other kernel's sound driver
+    <braunr> dde is preferred yes
+    <rekado> This email says that sound drivers are already partly working with
+      DDE: http://os.inf.tu-dresden.de/pipermail/l4-hackers/2009/004291.html
+    <rekado> So, should I just try to get some ALSA kernel parts to compile
+      with DDE?
+    <pinotree> well, what is missing is also the dde←→hurd glue
+    <braunr> rekado: there is also a problem with pci arbitration
+    <rekado> pinotree: I assumed DDEKit works with the hurd and we could use
+      any DDE/<other kernel> glue code with it
+    * rekado looks up pci arbitration
+    <pinotree> only for networking atm
+    <rekado> ah, I see.