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

** Changed in: mir (Ubuntu)
       Status: New => Confirmed

** Changed in: mir (Ubuntu)
   Importance: Undecided => High

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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/1566747

Title:
  Mir server with QtUbuntu client can cause system crash or Android GPU
  driver stall (Qualcomm)

Status in Mir:
  Confirmed
Status in qtubuntu:
  Confirmed
Status in mir package in Ubuntu:
  Confirmed

Bug description:
  While investigating new surface occlusion work in unity8 I've noticed that 
resizing a client multiple times can cause the system to either crash or a 
kworker process to cycle at 100% while attempting to reset the GPU.
  Only seems to occur on Qualcomm devices

  To Reproduce:
  I've written an extension for the demo server which can be found @ 
https://code.launchpad.net/~nick-dedekind/mir/occlusion-test-failures

  Server:
  mir_demo_server --test-resize [--test-resize-timeout=200]

  Client:
  QT_QPA_PLATFORM=ubuntumirclient qmlscene Test.qml

  -----------------------------
  [Test.qml]
  Item {
     width: 700
     height: 1000
  }
  -----------------------------

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