[Bug 909179] Re: [Precise] Ubiquity hangs in ubi-webcam.py

[Geir Ove Myhr]

** Description changed:

  During installation, after entering the user information, the installer
  slows down to a crawl and the status bar (which says "Copying files")
  stops. Upon switching VT to 2 and back to 7, the window contents is not
- updated. Checking with top, the ubiquity process uses 70-95% CPU and
- after a while 750 M (of 1 G) of real memory and 3.5 G (of 4.0 G) of
- virtual memory.
+ updated. Checking with top, the ubiquity process first uses 100 % CPU
+ and eats memory, and after a while it uses e 750 M (of 1 G) of real
+ memory and 3.5 G (of 4.0 G) of virtual memory causing massive swapping.
  
  The information uploaded with apport-collect is from the same LiveUSB
  session after I killed the ubiquity process an hour or two after it
  first hung. Apport wanted to submit a bug report automatically when the
  unity session started, but that bug report was wrongly judged to be a
  duplicate of bug 652916.
  
- ---
+ The hang occurs when loading the page titled
+ ubiquity/text/webcam_heading_label after the comment '# This page is
+ just a UI page' in gtk_ui.py.  This invokes plugin_get_current_page() in
+ ubi-webcam.py, where the call self.faceselector.webcam_play() never
+ returns.
+ 
+ In UbiquityDebug.txt, the following error message occurs twice:
+ Error opening file for reading: Permission denied
+ I have traced the origin to ubi-webcam.py as well, in __init__(): They come from the calls 
+ Gst.init(sys.argv) 
+ (sys.argv here resolves to ['/usr/lib/ubiquity/bin/ubiquity'])
+ and
+ self.faceselector = gtkwidgets.FaceSelector()
+ 
  ApportVersion: 1.90-0ubuntu1
  Architecture: amd64
- CasperVersion: 1.296
- DistroRelease: Ubuntu 12.04
+ CasperVersion: 1.296DistroRelease: Ubuntu 12.04
  LiveMediaBuild: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20111227)
  Package: ubiquity 2.9.10
  PackageArchitecture: amd64
  ProcEnviron:
+  PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 3.2.0-7.13-generic 3.2.0-rc7
  Tags:  precise running-unity ubiquity-2.9.10
  Uname: Linux 3.2.0-7-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
- --- 
- ApportVersion: 1.90-0ubuntu1
- Architecture: amd64
- CasperVersion: 1.296
- DistroRelease: Ubuntu 12.04
- LiveMediaBuild: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20111227)
- Package: ubiquity 2.9.10
- PackageArchitecture: amd64
- ProcEnviron:
-  PATH=(custom, no user)
-  LANG=en_US.UTF-8
-  SHELL=/bin/bash
- ProcVersionSignature: Ubuntu 3.2.0-7.13-generic 3.2.0-rc7
- Tags:  precise running-unity ubiquity-2.9.10
- Uname: Linux 3.2.0-7-generic x86_64
- UpgradeStatus: No upgrade log present (probably fresh install)
- UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

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https://bugs.launchpad.net/bugs/909179

Title:
  [Precise] Ubiquity hangs in ubi-webcam.py

Status in “ubiquity” package in Ubuntu:
  New

Bug description:
  During installation, after entering the user information, the
  installer slows down to a crawl and the status bar (which says
  "Copying files") stops. Upon switching VT to 2 and back to 7, the
  window contents is not updated. Checking with top, the ubiquity
  process first uses 100 % CPU and eats memory, and after a while it
  uses e 750 M (of 1 G) of real memory and 3.5 G (of 4.0 G) of virtual
  memory causing massive swapping.

  The information uploaded with apport-collect is from the same LiveUSB
  session after I killed the ubiquity process an hour or two after it
  first hung. Apport wanted to submit a bug report automatically when
  the unity session started, but that bug report was wrongly judged to
  be a duplicate of bug 652916.

  The hang occurs when loading the page titled
  ubiquity/text/webcam_heading_label after the comment '# This page is
  just a UI page' in gtk_ui.py.  This invokes plugin_get_current_page()
  in ubi-webcam.py, where the call self.faceselector.webcam_play() never
  returns.

  In UbiquityDebug.txt, the following error message occurs twice:
  Error opening file for reading: Permission denied
  I have traced the origin to ubi-webcam.py as well, in __init__(): They come from the calls 
  Gst.init(sys.argv) 
  (sys.argv here resolves to ['/usr/lib/ubiquity/bin/ubiquity'])
  and
  self.faceselector = gtkwidgets.FaceSelector()

  ApportVersion: 1.90-0ubuntu1
  Architecture: amd64
  CasperVersion: 1.296DistroRelease: Ubuntu 12.04
  LiveMediaBuild: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20111227)
  Package: ubiquity 2.9.10
  PackageArchitecture: amd64
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 3.2.0-7.13-generic 3.2.0-rc7
  Tags:  precise running-unity ubiquity-2.9.10
  Uname: Linux 3.2.0-7-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

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