[Bug 1751252] Re: ubiquity crashed with signal 5 in _XEventsQueued()

[Jean-Baptiste Lallement]

** Tags added: rls-bb-incoming

** Also affects: glib2.0 (Ubuntu)
   Importance: Undecided
       Status: New

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Title:
  ubiquity crashed with signal 5 in _XEventsQueued()

Status in glib2.0 package in Ubuntu:
  New
Status in ubiquity package in Ubuntu:
  New

Bug description:
  Crashed in a VM in the middle of installation. The host is Bionic up
  to date.

  From the journal
  Feb 23 12:52:27 ubuntu kernel: traps: ubiquity[2646] trap int3 ip:7f5a76936961 sp:7ffde5090c50 error:0 in libglib-2.0.so.0.5400.1[7f5a768e6000+111000]
  Feb 23 12:52:41 ubuntu /install.py[6858]: Exception during installation:
  Feb 23 12:52:41 ubuntu /install.py[6858]: Traceback (most recent call last):
  Feb 23 12:52:41 ubuntu /install.py[6858]:   File "/usr/share/ubiquity/install.py", line 757, in <module>
  Feb 23 12:52:41 ubuntu /install.py[6858]:     install.run()
  Feb 23 12:52:41 ubuntu /install.py[6858]:   File "/usr/share/ubiquity/install.py", line 135, in run
  Feb 23 12:52:41 ubuntu /install.py[6858]:     self.copy_all()
  Feb 23 12:52:41 ubuntu /install.py[6858]:   File "/usr/share/ubiquity/install.py", line 505, in copy_all
  Feb 23 12:52:41 ubuntu /install.py[6858]:     self.db.progress('SET', 10 + copy_progress)
  Feb 23 12:52:41 ubuntu /install.py[6858]:   File "/usr/lib/python3/dist-packages/debconf.py", line 83, in <lambda>
  Feb 23 12:52:41 ubuntu /install.py[6858]:     lambda *args, **kw: self.command(command, *args, **kw))
  Feb 23 12:52:41 ubuntu /install.py[6858]:   File "/usr/lib/python3/dist-packages/debconf.py", line 104, in command
  Feb 23 12:52:41 ubuntu /install.py[6858]:     status = int(status)
  Feb 23 12:52:41 ubuntu /install.py[6858]: ValueError: invalid literal for int() with base 10: ''

  ProblemType: Crash
  DistroRelease: Ubuntu 18.04
  Package: ubiquity 18.04.1
  ProcVersionSignature: Ubuntu 4.13.0-32.35-generic 4.13.13
  Uname: Linux 4.13.0-32-generic x86_64
  ApportVersion: 2.20.8-0ubuntu10
  Architecture: amd64
  CasperVersion: 1.388
  Date: Fri Feb 23 12:52:28 2018
  ExecutablePath: /usr/lib/ubiquity/bin/ubiquity
  InstallCmdLine: file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash --- keyboard-configuration/layoutcode=fr keyboard-configuration/variantcode=oss
  InterpreterPath: /usr/bin/python3.6
  LiveMediaBuild: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180222)
  ProcCmdline: /usr/bin/python3 /usr/lib/ubiquity/bin/ubiquity -d
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=C.UTF-8
   SHELL=/bin/bash
  Python3Details: /usr/bin/python3.6, Python 3.6.4+, python3-minimal, 3.6.4-1
  PythonDetails: /usr/bin/python2.7, Python 2.7.14+, python-minimal, 2.7.14-4
  Signal: 5
  SourcePackage: ubiquity
  StacktraceTop:
   ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
   ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
   _XEventsQueued () from /usr/lib/x86_64-linux-gnu/libX11.so.6
   XPending () from /usr/lib/x86_64-linux-gnu/libX11.so.6
   ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
  Title: ubiquity crashed with signal 5 in _XEventsQueued()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:

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