touch-packages team mailing list archive

[Gerry Boland <1410457@xxxxxxxxxxxxxxxxxx>]

A little more digging: bringing up mir_proving_server and xeyes manually:
1. sudo stop lightdm
2. sudo mir_proving_server
3. sudo chown $USER /tmp/mir_socket
4. sudo chmod 777 /tmp/mir_socket
5. Xmir :1 -mirSocket /tmp/mir_socket 
6. in separate shell, do:
DISPLAY=:1 xeyes

I can tell X to blank the display with 
DISPLAY=:1 xset dpms force off
and Mir deals with it ok - no crash.

** Also affects: mir
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1410457

Title:
  DisplayWindow::makeCurrent crash with xmir apps

Status in Mir:
  New
Status in Qt integration with the Mir display server:
  Confirmed
Status in qtmir package in Ubuntu:
  New
Status in unity8 package in Ubuntu:
  New

Bug description:
  This crash occurs when opening an Xmir window and leaving it idle for
  ~5-10 minutes.

  If you need steps to reproduce, please ping me.

  ProblemType: Crash
  DistroRelease: Ubuntu 15.04
  Package: unity8 8.02+15.04.20150109.2-0ubuntu1
  ProcVersionSignature: Ubuntu 3.18.0-8.9-generic 3.18.1
  Uname: Linux 3.18.0-8-generic x86_64
  ApportVersion: 2.15.1-0ubuntu2
  Architecture: amd64
  CrashCounter: 1
  Date: Tue Jan 13 11:57:45 2015
  ExecutablePath: /usr/bin/unity8
  ExecutableTimestamp: 1420800924
  InstallationDate: Installed on 2013-03-18 (666 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  ProcCmdline: unity8
  ProcCwd: /home/townsend
  ProcEnviron:
   LANGUAGE=en_US
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SegvAnalysis:
   Segfault happened at: 0x7fb06a6fc357 <_ZN13DisplayWindow11makeCurrentEv+27>:	mov    (%rax),%rax
   PC (0x7fb06a6fc357) ok
   source "(%rax)" (0x00000030) not located in a known VMA region (needed readable region)!
   destination "%rax" ok
   Stack memory exhausted (SP below stack segment)
  SegvReason: reading NULL VMA
  Signal: 11
  SourcePackage: unity8
  StacktraceTop:
   DisplayWindow::makeCurrent() () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqpa-mirserver.so
   MirOpenGLContext::makeCurrent(QPlatformSurface*) () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqpa-mirserver.so
   QOpenGLContext::makeCurrent(QSurface*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
   ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
   ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
  Title: unity8 crashed with SIGSEGV in DisplayWindow::makeCurrent()
  UpgradeStatus: Upgraded to vivid on 2014-10-20 (85 days ago)
  UserGroups: adm autopilot cdrom dip lpadmin plugdev sambashare sudo vboxusers

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