Bug 629032 - Xephyr fails to start when IPv6 module is disabled
Xephyr fails to start when IPv6 module is disabled
Status: CLOSED WONTFIX
Product: Fedora
Classification: Fedora
Component: xorg-x11-server (Show other bugs)
14
All Linux
low Severity medium
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Assigned To: X/OpenGL Maintenance List
Fedora Extras Quality Assurance
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Depends On:
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Reported: 2010-08-31 14:19 EDT by Stefan Becker
Modified: 2012-08-16 17:23 EDT (History)
2 users (show)

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Doc Type: Bug Fix
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: 1221916 (view as bug list)
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Last Closed: 2012-08-16 17:23:23 EDT
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Description Stefan Becker 2010-08-31 14:19:27 EDT
[This was found while debugging why SELinux "sandbox -X" doesn't work on my machine]

kernel-2.6.35.4-12.fc14.i686
xorg-x11-server-Xephyr-1.9.0-4.fc14.i686

1. disable IPv6 module loading

  Either add a file to /etc/modprobe.d with

    install ipv6 /bin/true

or

    blacklist ipv6
  + disable all services that might set up ipv6, e.g. ip6tables

2. after boot make sure that "ipv6" isn't loaded:

    # lsmod | fgrep ipv6
    #

3. SELinux can be in Enforced or Permissive mode

    This only affects what kind of AVCs you'll receive. It hasn't anything to do with the problem.

4. start Xephyr

   (this is the command line used by sandbox -X)

    $ /usr/bin/Xephyr -title "test" -terminate -screen 1024x768 -displayfd 5
_XSERVTransSocketOpenCOTSServer: Unable to open socket for inet6
_XSERVTransOpen: transport open failed for inet6/l3f1199:0
_XSERVTransMakeAllCOTSServerListeners: failed to open listener for inet6
_XSERVTransSocketUNIXCreateListener: ...SocketCreateListener() failed
_XSERVTransMakeAllCOTSServerListeners: server already running
_XSERVTransSocketOpenCOTSServer: Unable to open socket for inet6
_XSERVTransOpen: transport open failed for inet6/l3f1199:1
_XSERVTransMakeAllCOTSServerListeners: failed to open listener for inet6
_XSERVTransSocketOpenCOTSServer: Unable to open socket for inet6
_XSERVTransOpen: transport open failed for inet6/l3f1199:2
...
... and so on and so on ...
...
_XSERVTransMakeAllCOTSServerListeners: failed to open listener for inet
_XSERVTransSocketOpenCOTSServer: Unable to open socket for local
_XSERVTransOpen: transport open failed for local/l3f1199:64510
_XSERVTransMakeAllCOTSServerListeners: failed to open listener for local
_XSERVTransSocketOpenCOTSServer: Unable to open socket for unix
_XSERVTransOpen: transport open failed for unix/l3f1199:64510
_XSERVTransMakeAllCOTSServerListeners: failed to open listener for unix

Fatal server error:
Failed to find a socket to listen on
Comment 1 Fedora End Of Life 2012-08-16 17:23:25 EDT
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