Ubuntu
ubuntu-release-upgrader package

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

Bug #1292213 reported by Stephen on 2014-03-13

14

This bug affects 2 people

Affects		Status	Importance	Assigned to	Milestone
	ubuntu-release-upgrader (Ubuntu)	Confirmed	Medium	Shafi Ur Rehman

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@entry=0xb6284a68 "!xcb_xlib_threads_sequence_lost", file=file@entry=0xb62848db "../../src/xcb_io.c", line=line@entry=274, function=function@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:

Tags:

Revision history for this message

Stephen (moondoggy2) wrote on 2014-03-13:

#1

CurrentDmesg.txt.txt Edit (3.4 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (1.8 KiB, text/plain; charset="utf-8")
Disassembly.txt Edit (536 bytes, text/plain; charset="utf-8")
ProcMaps.txt Edit (55.2 KiB, text/plain; charset="utf-8")
ProcStatus.txt Edit (778 bytes, text/plain; charset="utf-8")
Registers.txt Edit (478 bytes, text/plain; charset="utf-8")
Stacktrace.txt Edit (4.6 KiB, text/plain; charset="utf-8")
ThreadStacktrace.txt Edit (12.2 KiB, text/plain; charset="utf-8")
VarLogDistupgradeAptHistorylog.txt Edit (3.8 KiB, text/plain; charset="utf-8")
VarLogDistupgradeAptlog.txt Edit (28.4 KiB, text/plain; charset="utf-8")
VarLogDistupgradeApttermlog.txt Edit (23.5 KiB, text/plain; charset="utf-8")

Revision history for this message

Apport retracing service (apport) wrote on 2014-03-13:

#2

StacktraceTop:
__assert_fail_base (fmt=0xb7697ff4 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=assertion@entry=0xb6284a68 "!xcb_xlib_threads_sequence_lost", file=file@entry=0xb62848db "../../src/xcb_io.c", line=line@entry=274, function=function@entry=0xb6284cf2 <__PRETTY_FUNCTION__.14003> "poll_for_event") at assert.c:92
__GI___assert_fail (assertion=assertion@entry=0xb6284a68 "!xcb_xlib_threads_sequence_lost", file=file@entry=0xb62848db "../../src/xcb_io.c", line=line@entry=274, function=function@entry=0xb6284cf2 <__PRETTY_FUNCTION__.14003> "poll_for_event") at assert.c:101
poll_for_event (dpy=dpy@entry=0x941a388) at ../../src/xcb_io.c:271
poll_for_response (dpy=dpy@entry=0x941a388) at ../../src/xcb_io.c:289
_XEventsQueued (dpy=dpy@entry=0x941a388, mode=mode@entry=2) at ../../src/xcb_io.c:363

Revision history for this message

Apport retracing service (apport) wrote on 2014-03-13: Stacktrace.txt

#3

Stacktrace.txt Edit (65.9 KiB, text/plain)

Revision history for this message

Apport retracing service (apport) wrote on 2014-03-13: StacktraceSource.txt

#4

StacktraceSource.txt Edit (9.1 KiB, text/plain)

Revision history for this message

Apport retracing service (apport) wrote on 2014-03-13: ThreadStacktrace.txt

#5

ThreadStacktrace.txt Edit (175.1 KiB, text/plain)

Changed in ubuntu-release-upgrader (Ubuntu):
importance:	Undecided → Medium
tags:	removed: need-i386-retrace

Revision history for this message

Seth Arnold (seth-arnold) wrote on 2014-03-13: Bug is not a security issue

#6

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:

Private Security → Public

Shafi Ur Rehman (shafi-khattak66) on 2015-07-20

Changed in ubuntu-release-upgrader (Ubuntu):
assignee:	nobody → Shafi Ur Rehman (shafi-khattak66)
status:	New → Confirmed

Report a bug

This report contains Public information

Everyone can see this information.

You are

Subscribing...

Edit bug mail

Other bug subscribers

Bug attachments

Add attachment

Remote bug watches

Bug watches keep track of this bug in other bug trackers.