Ubuntu
signon-ui package

signon-ui crashed with SIGSEGV in QtPrivate::RefCount::ref()

Bug #1703088 reported by Amr Ibrahim on 2017-07-08

16

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	signon-ui (Ubuntu)	New	Medium	Unassigned

Bug Description

I installed signon-ui from xenial-proposed LP: #1547647. I get this crash after I add my Google account in UOA. It could be a regression. The Google account is added fine.

Steps to reproduce:
1. Choose to add a Google account in UOA
2. After it's done, disable all accesses except the last one (Evolution Data Server Access your Google Calendar)

ProblemType: Crash
DistroRelease: Ubuntu 16.04
Package: signon-ui-x11 0.17+16.04.20170116-0ubuntu1
ProcVersionSignature: Ubuntu 4.8.0-58.63~16.04.1-generic 4.8.17
Uname: Linux 4.8.0-58-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.6
Architecture: amd64
CrashCounter: 1
CurrentDesktop: Unity
Date: Sat Jul 8 10:35:11 2017
ExecutablePath: /usr/bin/signon-ui
InstallationDate: Installed on 2017-06-21 (16 days ago)
InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2)
ProcCmdline: /usr/bin/signon-ui
SegvAnalysis:
Segfault happened at: 0x7f3c648996d5: mov 0x0(%rbp),%eax
PC (0x7f3c648996d5) ok
source "0x0(%rbp)" (0x00000004) not located in a known VMA region (needed readable region)!
destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: signon-ui
StacktraceTop:
?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
QV4::ExecutionEngine::newStringObject(QV4::Value const&) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
QV4::Runtime::getProperty(QV4::ExecutionEngine*, QV4::Value const&, int) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
?? ()
?? ()
Title: signon-ui crashed with SIGSEGV in QV4::ExecutionEngine::newStringObject()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sudo

See original description

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Revision history for this message

Amr Ibrahim (amribrahim1987) wrote on 2017-07-08:

#1

Dependencies.txt Edit (5.6 KiB, text/plain; charset="utf-8")
Disassembly.txt Edit (632 bytes, text/plain; charset="utf-8")
JournalErrors.txt Edit (18.9 KiB, text/plain; charset="utf-8")
ProcCpuinfoMinimal.txt Edit (973 bytes, text/plain; charset="utf-8")
ProcEnviron.txt Edit (311 bytes, text/plain; charset="utf-8")
ProcMaps.txt Edit (113.9 KiB, text/plain; charset="utf-8")
ProcStatus.txt Edit (1.0 KiB, text/plain; charset="utf-8")
Registers.txt Edit (750 bytes, text/plain; charset="utf-8")
Stacktrace.txt Edit (773 bytes, text/plain; charset="utf-8")
ThreadStacktrace.txt Edit (55.4 KiB, text/plain; charset="utf-8")

information type:

Private → Public

Revision history for this message

Apport retracing service (apport) wrote on 2017-07-08:

#2

StacktraceTop:
QtPrivate::RefCount::ref (this=0x4) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qrefcount.h:54
QV4::Heap::String::toQString (this=<optimized out>) at jsruntime/qv4string_p.h:84
QV4::String::toQString (this=<optimized out>) at jsruntime/qv4string_p.h:145
QV4::Heap::StringObject::StringObject (this=<optimized out>, engine=0xc88bb0, val=...) at jsruntime/qv4stringobject.cpp:91
QV4::MemoryManager::alloc<QV4::StringObject, QV4::ExecutionEngine*, QV4::Value> (arg2=..., arg1=0xc88bb0, this=<optimized out>) at jsruntime/qv4mm_p.h:126

Revision history for this message

Apport retracing service (apport) wrote on 2017-07-08: Stacktrace.txt

#3

Stacktrace.txt Edit (1.4 KiB, text/plain)

Revision history for this message

Apport retracing service (apport) wrote on 2017-07-08: StacktraceSource.txt

#4

StacktraceSource.txt Edit (1.3 KiB, text/plain)

Revision history for this message

Apport retracing service (apport) wrote on 2017-07-08: ThreadStacktrace.txt

#5

ThreadStacktrace.txt Edit (63.2 KiB, text/plain)

Changed in signon-ui (Ubuntu):
importance:	Undecided → Medium
summary:	- signon-ui crashed with SIGSEGV in - QV4::ExecutionEngine::newStringObject() + signon-ui crashed with SIGSEGV in QtPrivate::RefCount::ref()
tags:	removed: need-amd64-retrace

Revision history for this message

Amr Ibrahim (amribrahim1987) wrote on 2017-07-11:

#6

The -proposed package is from here LP: #1547647.

Amr Ibrahim (amribrahim1987) on 2017-07-11

description:

updated

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Bug #1703591

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