qmlscene crashed with SIGSEGV in g_type_check_instance()

[Rick Spencer]

Was running an app from QtCreator when I got this crash.

ProblemType: Crash
DistroRelease: Ubuntu 13.10
Package: qmlscene 5.0.2-6ubuntu1
ProcVersionSignature: Ubuntu 3.11.0-3.6-generic 3.11.0-rc6
Uname: Linux 3.11.0-3-generic x86_64
ApportVersion: 2.12.1-0ubuntu2
Architecture: amd64
Date: Wed Aug 21 10:12:02 2013
ExecutablePath: /usr/lib/x86_64-linux-gnu/qt5/bin/qmlscene
InstallationDate: Installed on 2013-04-23 (119 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130423.1)
MarkForUpload: True
ProcCmdline: /usr/lib/x86_64-linux-gnu/qt5/bin/qmlscene -I /home/username/Projects/app-lifecycle -I /usr/bin -I /usr/lib/x86_64-linux-gnu/qt5/qml /home/username/Projects/app-lifecycle/ApplicationLifecycleApp.qml
SegvAnalysis:
 Segfault happened at: 0x7f07e7bf6759 <g_type_check_instance+25>: mov (%rax),%rdi
 PC (0x7f07e7bf6759) ok
 source "(%rax)" (0x00000001) not located in a known VMA region (needed readable region)!
 destination "%rdi" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: qtdeclarative-opensource-src
StacktraceTop:
 g_type_check_instance () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgeoclue.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libdbus-glib-1.so.2
Title: qmlscene crashed with SIGSEGV in g_type_check_instance()
UpgradeStatus: Upgraded to saucy on 2013-08-14 (7 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 g_type_check_instance (type_instance=type_instance@entry=0x28962b0) at /build/buildd/glib2.0-2.37.5/./gobject/gtype.c:4082
 g_signal_emit_valist (instance=0x28962b0, signal_id=381, detail=0, var_args=var_args@entry=0x7fff95745c58) at /build/buildd/glib2.0-2.37.5/./gobject/gsignal.c:3105
 g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=detail@entry=0) at /build/buildd/glib2.0-2.37.5/./gobject/gsignal.c:3382
 position_provider_changed (proxy=<optimized out>, name=<optimized out>, description=<optimized out>, service=<optimized out>, path=<optimized out>, client=<optimized out>) at geoclue-master-client.c:172
 marshal_dbus_message_to_g_marshaller (closure=0x2bc6c10, return_value=0x0, n_param_values=<optimized out>, param_values=<optimized out>, invocation_hint=0x7fff95745f10, marshal_data=0x0) at dbus-gproxy.c:1736

[Timo Jyrinki (timo-jyrinki)]

Marking the bug as Incomplete to indicate it's probably not reproducible anymore. Qt Declarative script engine was rewritten in the Qt 5.2.1 and it's likely the crashes that happened with Qt 5.0.2 do not happen or are different with the new Qt.

[Launchpad Janitor (janitor)]

[Expired for qtdeclarative-opensource-src (Ubuntu) because there has been no activity for 60 days.]