Ubuntu
unity8 package

unity8-dash crashed with SIGSEGV in QOpenGLContext::shareGroup()

Bug #1541057 reported by krishnan sampath on 2016-02-02

180

This bug affects 31 people

Affects		Status	Importance	Assigned to	Milestone
	unity8 (Ubuntu)	Confirmed	Medium	Unassigned

Bug Description

the unity8 dash crashed on closing it. now unable to access apps scope. installed on desktop

ProblemType: Crash
DistroRelease: Ubuntu 16.04
Package: unity8 8.11+16.04.20160129-0ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-2.16-generic 4.4.0
Uname: Linux 4.4.0-2-generic x86_64
ApportVersion: 2.19.4-0ubuntu2
Architecture: amd64
CrashCounter: 1
Date: Tue Feb 2 23:22:36 2016
ExecutablePath: /usr/bin/unity8-dash
InstallationDate: Installed on 2015-12-26 (38 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151209)
ProcCmdline: unity8-dash --desktop_file_hint=/usr/share/applications/unity8-dash.desktop
SegvAnalysis:
Segfault happened at: 0x7febf0037370 <_ZNK14QOpenGLContext10shareGroupEv>: mov 0x8(%rdi),%rax
PC (0x7febf0037370) ok
source "0x8(%rdi)" (0x00000008) 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:
QOpenGLContext::shareGroup() const () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
?? () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
?? () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
?? () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
Title: unity8-dash crashed with SIGSEGV in QOpenGLContext::shareGroup()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

Tags:

Revision history for this message

krishnan sampath (tskrishnan) wrote on 2016-02-02:

#1

Dependencies.txt Edit (28.1 KiB, text/plain; charset="utf-8")
Disassembly.txt Edit (1.2 KiB, text/plain; charset="utf-8")
JournalErrors.txt Edit (29.5 KiB, text/plain; charset="utf-8")
ProcEnviron.txt Edit (379 bytes, text/plain; charset="utf-8")
ProcMaps.txt Edit (149.8 KiB, text/plain; charset="utf-8")
ProcStatus.txt Edit (958 bytes, text/plain; charset="utf-8")
Registers.txt Edit (766 bytes, text/plain; charset="utf-8")
Stacktrace.txt Edit (2.8 KiB, text/plain; charset="utf-8")
ThreadStacktrace.txt Edit (25.1 KiB, text/plain; charset="utf-8")
upstart.unity8-dash.log.txt Edit (1.3 KiB, text/plain; charset="utf-8")
upstart.unity8.log.txt Edit (12.4 KiB, text/plain; charset="utf-8")

Revision history for this message

Apport retracing service (apport) wrote on 2016-02-03:

#2

StacktraceTop:
QOpenGLContext::shareGroup() const () from /tmp/apport_sandbox_6nF3gU/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
qt_gl_functions(QOpenGLContext*) [clone .constprop.29] () from /tmp/apport_sandbox_6nF3gU/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
void (anonymous namespace)::Resolver<QOpenGLFunctionsPrivate, void (*)(int, unsigned int const*), 3, void>::operator()<int, unsigned int const*>(int, unsigned int const*) () from /tmp/apport_sandbox_6nF3gU/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
qopenglfResolveDeleteRenderbuffers(int, unsigned int const*) () from /tmp/apport_sandbox_6nF3gU/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
QSGDefaultDepthStencilBuffer::free() () from /tmp/apport_sandbox_6nF3gU/usr/lib/x86_64-linux-gnu/libQt5Quick.so.5

Revision history for this message

Apport retracing service (apport) wrote on 2016-02-03: Stacktrace.txt

#3

Stacktrace.txt Edit (3.8 KiB, text/plain)

Revision history for this message

Apport retracing service (apport) wrote on 2016-02-03: StacktraceSource.txt

#4

StacktraceSource.txt Edit (2.8 KiB, text/plain)

Revision history for this message

Apport retracing service (apport) wrote on 2016-02-03: ThreadStacktrace.txt

#5

ThreadStacktrace.txt Edit (34.7 KiB, text/plain)

Changed in unity8 (Ubuntu):
importance:	Undecided → Medium
tags:	removed: need-amd64-retrace

Revision history for this message

Launchpad Janitor (janitor) wrote on 2016-02-18:

#6

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in unity8 (Ubuntu):
status:	New → Confirmed

Daniel van Vugt (vanvugt) on 2016-03-16

information type:

Private → Public

jorho60 (jorho60) on 2016-04-06

Changed in unity8 (Ubuntu):
status:	Confirmed → New

Launchpad Janitor (janitor) on 2016-04-07

Changed in unity8 (Ubuntu):
status:	New → Confirmed

Apport retracing service (apport) on 2016-05-11

tags:	added: bugpattern-needed
tags:	added: yakkety

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