. Thread 4 (Thread 0x7f486b1dc700 (LWP 3504)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162 No locals. #1 0x00007f487c9dc222 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7f487ccd4e80) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359 No locals. #2 0x00007f487c9dc259 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464 No locals. #3 0x00007f487f0f6e9a in start_thread (arg=0x7f486b1dc700) at pthread_create.c:308 __res = pd = 0x7f486b1dc700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 8583746905278812351, 139949346130048, 139949011487168, 0, 3, -8534516527588667201, -8534490299894820673}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = 0 pagesize_m1 = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #4 0x00007f487f3fe4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 No locals. #5 0x0000000000000000 in ?? () No symbol table info available. . Thread 3 (Thread 0x7f486bfff700 (LWP 3503)): #0 0x00007f487f3f2b03 in __GI___poll (fds=, nfds=, timeout=) at ../sysdeps/unix/sysv/linux/poll.c:87 resultvar = oldtype = 0 result = #1 0x00007f487e81eff6 in g_main_context_poll (n_fds=3, fds=0x7f48640010c0, timeout=-1, context=0x7f486c012e40, priority=) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3417 poll_func = 0x7f487e82bf00 #2 g_main_context_iterate (dispatch=1, block=, context=0x7f486c012e40, self=) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3118 timeout = -1 some_ready = fds = 0x7f48640010c0 max_priority = 2147483647 nfds = 3 allocated_nfds = #3 g_main_context_iterate (context=0x7f486c012e40, block=, dispatch=1, self=) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3060 some_ready = 1677725888 #4 0x00007f487e81f45a in g_main_loop_run (loop=0x7f486c012df0) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3317 __PRETTY_FUNCTION__ = "g_main_loop_run" #5 0x00007f487963b2c6 in gdbus_shared_thread_func (user_data=) at /build/buildd/glib2.0-2.32.1/./gio/gdbusprivate.c:277 data = 0x7f486c012e10 #6 0x00007f487e8409a5 in g_thread_proxy (data=0x7f486c010400) at /build/buildd/glib2.0-2.32.1/./glib/gthread.c:801 thread = 0x7f486c010400 #7 0x00007f487f0f6e9a in start_thread (arg=0x7f486bfff700) at pthread_create.c:308 __res = pd = 0x7f486bfff700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 8583746905278812351, 139949124256944, 139949026310592, 0, 3, -8534515171989614401, -8534490299894820673}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = 0 pagesize_m1 = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #8 0x00007f487f3fe4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 No locals. #9 0x0000000000000000 in ?? () No symbol table info available. . Thread 2 (Thread 0x7f4871d69700 (LWP 3502)): #0 0x00007f487f3f2b03 in __GI___poll (fds=, nfds=, timeout=) at ../sysdeps/unix/sysv/linux/poll.c:87 resultvar = oldtype = 0 result = #1 0x00007f487e81eff6 in g_main_context_poll (n_fds=1, fds=0x7f486c0010e0, timeout=-1, context=0xdb1800, priority=) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3417 poll_func = 0x7f487e82bf00 #2 g_main_context_iterate (dispatch=1, block=, context=0xdb1800, self=) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3118 timeout = -1 some_ready = fds = 0x7f486c0010e0 max_priority = 2147483647 nfds = 1 allocated_nfds = #3 g_main_context_iterate (context=0xdb1800, block=, dispatch=1, self=) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3060 some_ready = 1811943648 #4 0x00007f487e81f45a in g_main_loop_run (loop=0x7f486c0010c0) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3317 __PRETTY_FUNCTION__ = "g_main_loop_run" #5 0x00007f4871d6e98b in dconf_context_thread (data=) at dconfcontext.c:11 context = 0xdb1800 loop = __PRETTY_FUNCTION__ = "dconf_context_thread" #6 0x00007f487e8409a5 in g_thread_proxy (data=0xda9a30) at /build/buildd/glib2.0-2.32.1/./glib/gthread.c:801 thread = 0xda9a30 #7 0x00007f487f0f6e9a in start_thread (arg=0x7f4871d69700) at pthread_create.c:308 __res = pd = 0x7f4871d69700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 8583746905278812351, 140736302390624, 139949124262336, 0, 3, -8534466455249317697, -8534490299894820673}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = 0 pagesize_m1 = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #8 0x00007f487f3fe4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 No locals. #9 0x0000000000000000 in ?? () No symbol table info available. . Thread 1 (Thread 0x7f48828a9dc0 (LWP 3501)): #0 0x00007f487f342445 in __GI_raise (sig=) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64 resultvar = 0 pid = selftid = 3501 #1 0x00007f487f345bab in __GI_abort () at abort.c:91 save_stage = 2 act = {__sigaction_handler = {sa_handler = 0x200000110, sa_sigaction = 0x200000110}, sa_mask = {__val = {139949352169856, 139949348301896, 139949404637648, 16012964, 15841504, 1, 139949349353675, 4294967295, 206158430248, 140736302383744, 139949352171560, 3244224, 0, 16012964, 15841504, 139949357527040}}, sa_flags = -2106771596, sa_restorer = 0x5} sigs = {__val = {32, 0 }} #2 0x00007f487fc4dabb in Unity2dDebug::unity2dQtHandler (type=QtFatalMsg, message=0x10b81b8 "ASSERT: \"m_barrier != 0\" in file /build/buildd/unity-2d-5.10.0/libunity-2d-private/src/pointerbarrier.cpp, line 188") at /build/buildd/unity-2d-5.10.0/libunity-2d-private/src/unity2ddebug.cpp:89 name = {static shared_null = {ref = {_q_value = 599}, alloc = 0, size = 0, data = 0x7f48826c3798 "", array = ""}, static shared_empty = {ref = {_q_value = 10}, alloc = 0, size = 0, data = 0x7f48826c3778 "", array = ""}, d = 0xf059d0} useTimeStamp = false #3 0x00007f488226441e in qt_message_output (msgType=QtFatalMsg, buf=0x10b81b8 "ASSERT: \"m_barrier != 0\" in file /build/buildd/unity-2d-5.10.0/libunity-2d-private/src/pointerbarrier.cpp, line 188") at global/qglobal.cpp:2203 No locals. #4 0x00007f48822648bf in qt_message(QtMsgType, const char *, typedef __va_list_tag __va_list_tag *) (msgType=QtFatalMsg, msg=0x7f48823d1ae8 "ASSERT: \"%s\" in file %s, line %d", ap=0x7fffb94f8458) at global/qglobal.cpp:2322 buf = {static shared_null = {ref = {_q_value = 599}, alloc = 0, size = 0, data = 0x7f48826c3798 "", array = ""}, static shared_empty = {ref = {_q_value = 10}, alloc = 0, size = 0, data = 0x7f48826c3778 "", array = ""}, d = 0x10b81a0} #5 0x00007f4882264a64 in qFatal (msg=) at global/qglobal.cpp:2505 ap = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 0x7fffb94f8530, reg_save_area = 0x7fffb94f8470}} #6 0x00007f487fcb60a8 in PointerBarrierWrapper::setThreshold (this=0xf44bc0, threshold=6500) at /build/buildd/unity-2d-5.10.0/libunity-2d-private/src/pointerbarrier.cpp:230 No locals. #7 0x00007f487fcb6aa3 in PointerBarrierWrapper::qt_metacall (this=0xf44bc0, _c=QMetaObject::WriteProperty, _id=7, _a=0x7fffb94f8780) at /build/buildd/unity-2d-5.10.0/obj-x86_64-linux-gnu/libunity-2d-private/src/pointerbarrier.moc:205 _v = #8 0x00007f4880eaee7c in QDeclarativeVMEMetaObject::metaCall (this=0xf45530, c=QMetaObject::WriteProperty, _id=8, a=0x7fffb94f8780) at qml/qdeclarativevmemetaobject.cpp:673 id = 8 #9 0x00007f4880ecaeed in QDeclarativePropertyPrivate::write (object=0xf44bc0, property=, value=, context=, flags=...) at qml/qdeclarativeproperty.cpp:1176 args = {0x7fffb94f8a10, 0x0, 0x7fffb94f88b4, 0x7fffb94f8950} valMo = o = 0x7f486a8dc0e8 propMo = status = -1 variantType = 2 coreIdx = 8 propertyType = 2 enginePriv = 0xf1b8e0 #10 0x00007f4880ecb7c1 in QDeclarativePropertyPrivate::writeValueProperty (this=0xf45660, value=..., flags=...) at qml/qdeclarativeproperty.cpp:1088 rv = false #11 0x00007f4880ecb8b6 in QDeclarativePropertyPrivate::write (that=..., value=..., flags=...) at qml/qdeclarativeproperty.cpp:1343 No locals. #12 0x00007f4880ec51b9 in QDeclarativeBinding::update (this=0xf456e0, flags=...) at qml/qdeclarativebinding.cpp:424 ep = 0xf1b8e0 isUndefined = false value = {d = {data = {c = 100 'd', i = 6500, u = 6500, b = 100, d = 3.2114266979681025e-320, f = 9.10844002e-42, real = 3.2114266979681025e-320, ll = 6500, ull = 6500, o = 0x1964, ptr = 0x1964, shared = 0x1964}, type = 2, is_shared = 0, is_null = 0}, static handler = 0x7f48826b8c20} scriptValue = {d_ptr = {d = 0x10a66e0}} wasDeleted = false d = 0xf45740 #13 0x00007f4880ec3fcb in update (this=) at ../../include/QtDeclarative/private/../../../src/declarative/qml/qdeclarativebinding_p.h:177 No locals. #14 QDeclarativeBindingPrivate::emitValueChanged (this=) at qml/qdeclarativebinding.cpp:466 No locals. #15 0x00007f4880ec2f4b in QDeclarativeExpression::qt_metacall (this=0xf456e0, _c=QMetaObject::InvokeMetaMethod, _id=, _a=0x7fffb94f8d60) at .moc/release-shared/moc_qdeclarativeexpression.cpp:94 No locals. #16 0x00007f4880fbf250 in QDeclarativeBinding::qt_metacall (this=0xf456e0, _c=QMetaObject::InvokeMetaMethod, _id=, _a=0x7fffb94f8d60) at .moc/release-shared/moc_qdeclarativebinding_p.cpp:86 No locals. #17 0x00007f4882382489 in QMetaObject::activate (sender=0xf44bc0, m=, local_signal_index=, argv=0x0) at kernel/qobject.cpp:3566 method = receiverInSameThread = true previousSender = 0x0 callFunction = receiver = 0xf456e0 currentSender = {sender = 0xf44bc0, signal = 20, ref = 1} method_relative = c = 0x109b1a0 last = 0x10b79d0 methodOffset = 19 signal_absolute_index = 20 empty_argv = {0x0} locker = {val = 16181536} connectionLists = 0xf4a570 list = 0xf4a6c0 signalOffset = 16 signal_index = currentThreadId = 139949404495296 #18 0x00007f4880eaf419 in QDeclarativeVMEMetaObject::metaCall (this=0xf45530, c=, _id=, a=0x7fffb94f8fd0) at qml/qdeclarativevmemetaobject.cpp:564 t = needActivate = true id = 1 #19 0x00007f4880ecaeed in QDeclarativePropertyPrivate::write (object=0xf44bc0, property=, value=, context=, flags=...) at qml/qdeclarativeproperty.cpp:1176 args = {0x7fffb94f9260, 0x0, 0x7fffb94f9104, 0x7fffb94f91a0} valMo = o = 0x7f486a8dc0e8 propMo = status = -1 variantType = 1 coreIdx = 14 propertyType = 1 enginePriv = 0xf1b8e0 #20 0x00007f4880ecb7c1 in QDeclarativePropertyPrivate::writeValueProperty (this=0xf49280, value=..., flags=...) at qml/qdeclarativeproperty.cpp:1088 rv = false #21 0x00007f4880ecb8b6 in QDeclarativePropertyPrivate::write (that=..., value=..., flags=...) at qml/qdeclarativeproperty.cpp:1343 No locals. #22 0x00007f4880ec51b9 in QDeclarativeBinding::update (this=0xf49300, flags=...) at qml/qdeclarativebinding.cpp:424 ep = 0xf1b8e0 isUndefined = false value = {d = {data = {c = 1 '\001', i = 1, u = 1, b = true, d = 4.9406564584124654e-324, f = 1.40129846e-45, real = 4.9406564584124654e-324, ll = 1, ull = 1, o = 0x1, ptr = 0x1, shared = 0x1}, type = 1, is_shared = 0, is_null = 0}, static handler = 0x7f48826b8c20} scriptValue = {d_ptr = {d = 0x10a5f40}} wasDeleted = false d = 0xf49360 #23 0x00007f4880ec601c in QDeclarativeBinding::setEnabled (this=, e=true, flags=...) at qml/qdeclarativebinding.cpp:476 d = #24 0x00007f4880ecdbfe in QDeclarativeComponentPrivate::complete (enginePriv=0xf1b8e0, state=0xff9698) at qml/qdeclarativecomponent.cpp:948 jj = bv = {count = 55, values = 0xf674c0} ii = #25 0x00007f4880ece35f in completeCreate (this=) at qml/qdeclarativecomponent.cpp:1043 ep = #26 QDeclarativeComponentPrivate::completeCreate (this=) at qml/qdeclarativecomponent.cpp:1039 No locals. #27 0x00007f487fc50232 in Unity2DDeclarativeView::setSource (this=0xf10570, source=..., rootObjectProperties=...) at /build/buildd/unity-2d-5.10.0/libunity-2d-private/src/unity2ddeclarativeview.cpp:104 component = 0xff91a0 instance = 0xf72060 it = {i = 0xf0f0b0} itEnd = {i = 0xf0f0b0} #28 0x000000000040cfd3 in ShellDeclarativeView::showEvent (this=0xf10570, event=) at /build/buildd/unity-2d-5.10.0/shell/app/shelldeclarativeview.cpp:168 rootObjectProperties = {{d = 0xf0f0b0, e = 0xf0f0b0}} #29 0x00007f48817413f5 in QWidget::event (this=0xf10570, event=0x7fffb94f9f00) at kernel/qwidget.cpp:8569 d = 0xf18d30 #30 0x00007f4881b013c6 in QFrame::event (this=0xf10570, e=0x7fffb94f9f00) at widgets/qframe.cpp:557 result = #31 0x00007f4881b834d3 in QAbstractScrollArea::event (this=0xf10570, e=0x7fffb94f9f00) at widgets/qabstractscrollarea.cpp:996 d = 0xf18d30 #32 0x00007f48816f0894 in notify_helper (e=0x7fffb94f9f00, receiver=0xf10570, this=0xeb2330) at kernel/qapplication.cpp:4559 consumed = #33 QApplicationPrivate::notify_helper (this=0xeb2330, receiver=0xf10570, e=0x7fffb94f9f00) at kernel/qapplication.cpp:4531 No locals. #34 0x00007f48816f5713 in QApplication::notify (this=0x7fffb94fa2d0, receiver=0xf10570, e=0x7fffb94f9f00) at kernel/qapplication.cpp:4420 d = 0xeb2330 res = false #35 0x00007f488236de9c in QCoreApplication::notifyInternal (this=0x7fffb94fa2d0, receiver=0xf10570, event=0x7fffb94f9f00) at kernel/qcoreapplication.cpp:876 threadData = 0xead350 returnValue = result = false cbdata = {0xf10570, 0x7fffb94f9f00, 0x7fffb94f9ecf} d = #36 0x00007f4881743810 in sendEvent (event=0x7fffb94f9f00, receiver=0xf10570) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231 No locals. #37 QWidgetPrivate::show_helper (this=0xf18d30) at kernel/qwidget.cpp:7542 isEmbedded = false showEvent = { = {_vptr.QEvent = 0x7f48821b4550, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7f488245a3c0 "QEvent", data = 0x7f488245ada0, extradata = 0x0}}, d = 0x0, t = 17, posted = 0, spont = 0, m_accept = 1, reserved = 30}, } #38 0x00007f4881743b02 in QWidget::setVisible (this=0xf10570, visible=) at kernel/qwidget.cpp:7764 d = 0xf18d30 pw = wasResized = 32 initialWindowState = {i = 0} needUpdateGeometry = showToParentEvent = {_vptr.QEvent = 0x77, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7f488245a3c0 "QEvent", data = 0x7f488245ada0, extradata = 0x0}}, d = 0x7fffb94fa060, t = 1392, posted = 1, spont = 0, m_accept = 0, reserved = 30} #39 0x000000000040ef17 in show (this=0xf10570) at /usr/include/qt4/QtGui/qwidget.h:494 No locals. #40 ShellManagerPrivate::initShell (this=0xf1b7d0, screen=0) at /build/buildd/unity-2d-5.10.0/shell/app/shellmanager.cpp:131 arguments = {> = {{p = {static shared_null = {ref = {_q_value = 1}, alloc = 0, begin = 0, end = 0, sharable = 1, array = {0x0}}, d = 0xf10540}, d = 0xf10540}}, } view = 0xf10570 #41 0x00000000004102d6 in ShellManagerPrivate::updateScreenCount (this=0xf1b7d0, newCount=1) at /build/buildd/unity-2d-5.10.0/shell/app/shellmanager.cpp:160 shell = 0x7fffb94fa350 screen = 0 #42 0x0000000000410ab2 in ShellManager::ShellManager (this=0x7fffb94fa330, sourceFileUrl=..., parent=) at /build/buildd/unity-2d-5.10.0/shell/app/shellmanager.cpp:295 desktop = 0xf043c0 altF1 = altF2 = #43 0x000000000040b7b8 in main (argc=1, argv=) at /build/buildd/unity-2d-5.10.0/shell/app/shell.cpp:61 rootFileUrl = {d = 0xef3640} rootFileArgumentIndex = application = { = { = { = {_vptr.QObject = 0x7f487feeef90, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7f4882447820 "QObject", data = 0x7f48824478c0, extradata = 0x7f48826beb80}}, static staticMetaObjectExtraData = {objects = 0x0, static_metacall = 0x7f4882386390 }, d_ptr = {d = 0xeb2330}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7f4882450740 "Qt", data = 0x7f4882454060, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x61c940, stringdata = 0x7f488245a260 "QCoreApplication", data = 0x7f488245a300, extradata = 0x7f48826c17c0}}, static staticMetaObjectExtraData = {objects = 0x0, static_metacall = 0x7f48823cef00 }, static self = 0x7fffb94fa2d0}, static staticMetaObject = {d = {superdata = 0x7f48826c17a0, stringdata = 0x7f4881d8d5e0 "QApplication", data = 0x7f4881d8d820, extradata = 0x7f48821b3a80}}, static staticMetaObjectExtraData = {objects = 0x0, static_metacall = 0x7f48816f49e0 }}, static staticMetaObject = {d = {superdata = 0x7f48821b3a60, stringdata = 0x7f487fcbb300 "Unity2dApplication", data = 0x7f487fcbb320, extradata = 0x7f487feef040}}, static staticMetaObjectExtraData = {objects = 0x0, static_metacall = 0x7f487fc4c260 }, m_x11EventFilters = {{p = {static shared_null = {ref = {_q_value = 1}, alloc = 0, begin = 0, end = 0, sharable = 1, array = {0x0}}, d = 0xf45440}, d = 0xf45440}}, m_platformFontTracker = 0xef61c0} arguments = {> = {{p = {static shared_null = {ref = {_q_value = 1}, alloc = 0, begin = 0, end = 0, sharable = 1, array = {0x0}}, d = 0xef8e70}, d = 0xef8e70}}, } client = { = {_vptr.QObject = 0x7f487feee9d0, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7f4882447820 "QObject", data = 0x7f48824478c0, extradata = 0x7f48826beb80}}, static staticMetaObjectExtraData = {objects = 0x0, static_metacall = 0x7f4882386390 }, d_ptr = {d = 0xef4590}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7f4882450740 "Qt", data = 0x7f4882454060, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x61c940, stringdata = 0x7f487fcba280 "GnomeSessionClient", data = 0x7f487fcba4a0, extradata = 0x7f487feeea60}}, static staticMetaObjectExtraData = {objects = 0x0, static_metacall = 0x7f487fc44fe0 }, d = 0xee3070} shells = { = {_vptr.QObject = 0x418790, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7f4882447820 "QObject", data = 0x7f48824478c0, extradata = 0x7f48826beb80}}, static staticMetaObjectExtraData = {objects = 0x0, static_metacall = 0x7f4882386390 }, d_ptr = {d = 0xf12bc0}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7f4882450740 "Qt", data = 0x7f4882454060, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x61c940, stringdata = 0x418020 "ShellManager", data = 0x418400, extradata = 0x418000}}, static staticMetaObjectExtraData = {objects = 0x0, static_metacall = 0x414320 }, d = 0xf1b7d0} shellDBus = { = {_vptr.QObject = 0x1, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7f4882447820 "QObject", data = 0x7f48824478c0, extradata = 0x7f48826beb80}}, static staticMetaObjectExtraData = {objects = 0x0, static_metacall = 0x7f4882386390 }, d_ptr = {d = 0x7f48828e92c8}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7f4882450740 "Qt", data = 0x7f4882454060, extradata = 0x0}}}, = {d_ptr = 0xd992c8}, static staticMetaObject = {d = {superdata = 0x61c940, stringdata = 0x4171b0 "ShellDBus", data = 0x4171c0, extradata = 0x4171a0}}, static staticMetaObjectExtraData = {objects = 0x0, static_metacall = 0x413010 }, m_manager = 0x7f487885bf6b}