[Bug 1292213] Re: do-partial-upgrade assert failure: python3: ../../src/xcb_io.c:274: poll_for_event: Assertion `!xcb_xlib_threads_sequence_lost' failed.

[Seth Arnold]

Thanks for taking the time to report this bug and helping to make Ubuntu
better. We appreciate the difficulties you are facing, but this appears
to be a "regular" (non-security) bug.  I have unmarked it as a security
issue since this bug does not show evidence of allowing attackers to
cross privilege boundaries nor directly cause loss of data/privacy.
Please feel free to report any other bugs you may find.

** Information type changed from Private Security to Public

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https://bugs.launchpad.net/bugs/1292213

Title:
  do-partial-upgrade assert failure: python3: ../../src/xcb_io.c:274:
  poll_for_event: Assertion `!xcb_xlib_threads_sequence_lost' failed.

Status in “ubuntu-release-upgrader” package in Ubuntu:
  New

Bug description:
  Doing a partial upgrade

  ProblemType: Crash
  DistroRelease: Ubuntu 14.04
  Package: ubuntu-release-upgrader-core 1:0.216.1
  ProcVersionSignature: Ubuntu 3.13.0-17.37-generic 3.13.6
  Uname: Linux 3.13.0-17-generic i686
  ApportVersion: 2.13.3-0ubuntu1
  Architecture: i386
  AssertionMessage: python3: ../../src/xcb_io.c:274: poll_for_event: Assertion `!xcb_xlib_threads_sequence_lost' failed.
  CrashDB: ubuntu
  Date: Thu Mar 13 16:43:15 2014
  ExecutablePath: /usr/lib/ubuntu-release-upgrader/do-partial-upgrade
  InstallationDate: Installed on 2014-02-14 (27 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha i386 (20140201)
  InterpreterPath: /usr/bin/python3.4
  PackageArchitecture: all
  ProcCmdline: /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/do-partial-upgrade --frontend=DistUpgradeViewGtk3
  ProcEnviron:
   SHELL=/bin/bash
   LANG=en_CA.UTF-8
   LANGUAGE=en_CA:en
   TERM=xterm
   PATH=(custom, no user)
  Signal: 6
  SourcePackage: ubuntu-release-upgrader
  StacktraceTop:
   __assert_fail_base (fmt=0xb7697ff4 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=assertion at entry=0xb6284a68 "!xcb_xlib_threads_sequence_lost", file=file at entry=0xb62848db "../../src/xcb_io.c", line=line at entry=274, function=function at entry=0xb6284cf2 "poll_for_event") at assert.c:92
   __GI___assert_fail (assertion=0xb6284a68 "!xcb_xlib_threads_sequence_lost", file=0xb62848db "../../src/xcb_io.c", line=274, function=0xb6284cf2 "poll_for_event") at assert.c:101
   ?? () from /usr/lib/i386-linux-gnu/libX11.so.6
   ?? () from /usr/lib/i386-linux-gnu/libX11.so.6
   _XEventsQueued () from /usr/lib/i386-linux-gnu/libX11.so.6
  Title: do-partial-upgrade assert failure: python3: ../../src/xcb_io.c:274: poll_for_event: Assertion `!xcb_xlib_threads_sequence_lost' failed.
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:

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