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[Bug 1491566] Re: Shell not responsive after an incoming SMS or call notification

 

I reproduce the issue by following the "fd leak" lead with the following
test case:

1. Open 2 apps 
2. Switch from the app scope to app1
3. Switch from app1 to the app scope
4. Switch from the app scope to app2
5 lock the screen (optional but it leaks even more fd)

At the same time monitor the number of file descriptors used by unity8:
$ watch -n1 "ls /proc/$(pidof unity8)/fdinfo/| wc -l "

After a while unity8 runs out of fd and the system hangs. Eventually
unity8 will restart a moment later.

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https://bugs.launchpad.net/bugs/1491566

Title:
  Shell not responsive after an incoming SMS or call notification

Status in Canonical System Image:
  Confirmed
Status in Mir:
  In Progress
Status in unity-system-compositor package in Ubuntu:
  In Progress

Bug description:
  RC proposed MX4 r100

  This happened twice in the last two days
  Receive an incoming text
  Screen turns on and notification is shown
  notification goes away
  try to interact with the phone and nothing works
  another text message is received and the notification is displayed

  Adding incoming calls as also suspected to be triggering the issue

  Note this has been impossible to reproduce, and in use only happens
  very rarely

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References