touch-packages team mailing list archive

[Daniel van Vugt <daniel.van.vugt@xxxxxxxxxxxxx>]

** Also affects: mir (Ubuntu)
   Importance: Undecided
       Status: New

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to mir in Ubuntu.
https://bugs.launchpad.net/bugs/1479899

Title:
  mir_buffer_stream_swap_buffers_sync hangs

Status in Mir:
  Fix Committed
Status in mir package in Ubuntu:
  New

Bug description:
  mir_buffer_stream_swap_buffers_sync hangs due to incorrect wait handle
  signaling in mir::client::BufferStream mostly due to handling
  disconnection from the server.

  The server may have returned a buffer right after
  display_server.submit_buffer, in which case mcl::BufferStream::submit
  does not set any pending expected results in the wait handle (correct)
  but before the caller gets a chance to "wait" on the handle, the
  server may disconnect, in which case
  mcl::BufferStream::buffer_unavailable incorrectly calls
  next_buffer_wait_handle.result_received() so the wait handle never
  signals (received(1) != expected(0))

To manage notifications about this bug go to:
https://bugs.launchpad.net/mir/+bug/1479899/+subscriptions