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[Daniel van Vugt <daniel.van.vugt@xxxxxxxxxxxxx>]

** Tags added: crash mesa-x11

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https://bugs.launchpad.net/bugs/1497547

Title:
  Mir on X11 server crashed: mir_proving_server: ../../src/xcb_io.c:274:
  poll_for_event: Assertion `!xcb_xlib_threads_sequence_lost' failed.

Status in Mir:
  New
Status in mir package in Ubuntu:
  New

Bug description:
  mir_proving_server assert failure: mir_proving_server:
  ../../src/xcb_io.c:274: poll_for_event: Assertion
  `!xcb_xlib_threads_sequence_lost' failed.

  mousing arround with mir on x

   mir_proving_server --platform-input-lib server-mesa-x11.so.4
   mir_demo_client_egltriangle

  died wile mousing arround egltriangle's window

  ProblemType: Crash
  DistroRelease: Ubuntu 15.10
  Package: mir-demos 0.15.1+15.10.20150903-0ubuntu1
  ProcVersionSignature: Ubuntu 4.2.0-10.11-generic 4.2.0
  Uname: Linux 4.2.0-10-generic x86_64
  ApportVersion: 2.18.1-0ubuntu1
  Architecture: amd64
  AssertionMessage: mir_proving_server: ../../src/xcb_io.c:274: poll_for_event: Assertion `!xcb_xlib_threads_sequence_lost' failed.
  CurrentDesktop: Unity
  Date: Sat Sep 19 15:13:02 2015
  ExecutablePath: /usr/bin/mir_proving_server
  InstallationDate: Installed on 2015-09-18 (0 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150918)
  ProcCmdline: mir_proving_server --platform-input-lib server-mesa-x11.so.4
  Signal: 6
  SourcePackage: mir
  StacktraceTop:
   __assert_fail_base (fmt=0x7fbfd6d7c028 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=assertion@entry=0x7fbfd294a7a0 "!xcb_xlib_threads_sequence_lost", file=file@entry=0x7fbfd294a5eb "../../src/xcb_io.c", line=line@entry=274, function=function@entry=0x7fbfd294aaa6 "poll_for_event") at assert.c:92
   __GI___assert_fail (assertion=0x7fbfd294a7a0 "!xcb_xlib_threads_sequence_lost", file=0x7fbfd294a5eb "../../src/xcb_io.c", line=274, function=0x7fbfd294aaa6 "poll_for_event") at assert.c:101
   ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
   ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
   _XReadEvents () from /usr/lib/x86_64-linux-gnu/libX11.so.6
  Title: mir_proving_server assert failure: mir_proving_server: ../../src/xcb_io.c:274: poll_for_event: Assertion `!xcb_xlib_threads_sequence_lost' failed.
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

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