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Fix committed into lp:mir/devel at revision None, scheduled for release
in mir, milestone Unknown

** Changed in: mir
       Status: In Progress => Fix Committed

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https://bugs.launchpad.net/bugs/1350207

Title:
  A frozen client can hang the whole server

Status in Mir:
  Fix Committed
Status in Mir 0.6 series:
  Won't Fix
Status in “mir” package in Ubuntu:
  Triaged

Bug description:
  A frozen Mir client can hang the whole server

  Test case:
    1. mir_demo_server_shell
    2. mir_demo_client_egltriangle
    3. In the egltriangle terminal window hit Ctrl+S to freeze the terminal output and the client.
    4. Resize the frozen egltriangle window lots (Alt+middlebutton+drag).
    5. Move the mouse around on the server.

  Expected: The mouse can still move.
  Observed: The mouse is frozen until the client is unfrozen (Ctrl+Q).

  The same happens if you stop the client process using normal Unix signals:
      killall -STOP mir_demo_client_egltriangle
  The server quickly becomes frozen, until the client is unfrozen with:
      killall -CONT mir_demo_client_egltriangle

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