touch-packages team mailing list archive

[Alan Griffiths <1376324@xxxxxxxxxxxxxxxxxx>]

This looks as though the send_response_result member of
ProtobufResponder is no longer valid (i.e. that the ProtobufResponder at
this=0xac900574 has likely been freed).

I'm not sure what sequence of events would lead to a send_response()
message being passed to a no-longer valid ProtobufResponder - but is
likely to be a race within Mir between closing the connection and the
compositor::BufferQueue::give_buffer_to_client() sending a buffer to the
client.

I'll audit the Mir code in this area.

** Changed in: mir
       Status: New => In Progress

** Changed in: mir
     Assignee: (unassigned) => Alan Griffiths (alan-griffiths)

** Changed in: mir
   Importance: Undecided => High

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https://bugs.launchpad.net/bugs/1376324

Title:
  /usr/sbin/unity-system-compositor:*** Error in `unity-system-
  compositor': free(): invalid pointer: ADDR ***

Status in Mir:
  In Progress
Status in Unity System Compositor:
  New
Status in “mir” package in Ubuntu:
  New
Status in “unity-system-compositor” package in Ubuntu:
  New

Bug description:
  The Ubuntu Error Tracker has been receiving reports about a problem
  regarding unity-system-compositor.  This problem was most recently
  seen with version 0.0.5+14.10.20140917-0ubuntu1, the problem page at
  https://errors.ubuntu.com/problem/bfb855ebc60f251bf495a2ffb24f2924c50bdbf8
  contains more details.

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