The abort here is a red herring and is masking the primary issue, which you can see a few frames further down:
#5 0x00007f87c8e3d088 in __run_exit_handlers (status=status@entry=1, listp=0x7f87c91c75f8 <__exit_funcs>, run_list_atexit=run_list_atexit@entry=true) at exit.c:82 atfct = <optimized out> onfct = <optimized out> cxafct = <optimized out> #6 0x00007f87c8e3d0d5 in __GI_exit (status=status@entry=1) at exit.c:104 No locals. #7 0x00007f87bd0d2ea1 in gdk_x_io_error (display=<optimized out>) at /build/gtk+2.0-KsZKkB/gtk+2.0-2.24.30/gdk/x11/gdkmain-x11.c:544 No locals. #8 0x00007f87c8387cee in _XIOError (dpy=dpy@entry=0x5646ce4eb0f0) at ../../src/XlibInt.c:1464 No locals. #9 0x00007f87c8385d4a in _XReply (dpy=dpy@entry=0x5646ce4eb0f0, rep=rep@entry=0x7ffebcbf6160, extra=extra@entry=0, discard=discard@entry=1) at ../../src/xcb_io.c:708 error = 0x0 c = <optimized out> reply = 0x0 current = 0x5646cf5f8b60 __PRETTY_FUNCTION__ = "_XReply" #10 0x00007f87c838148d in XSync (dpy=0x5646ce4eb0f0, discard=0) at ../../src/Sync.c:44 rep = {type = 167 '\247', revertTo = 98 'b', sequenceNumber = 48319, length = 28, focus = 3465286592, pad1 = 0, pad2 = 3166658864, pad3 = 32766, pad4 = 32, pad5 = 0} #11 0x00007f87c764deda in dri2SwapBuffers () from /tmp/apport_sandbox_hx8GUx/usr/lib/x86_64-linux-gnu/mesa/libGL.so.1 No symbol table info available. #12 0x00007f87cb956342 in QGLXContext::swapBuffers(QPlatformSurface*) () from /tmp/apport_sandbox_hx8GUx/usr/lib/x86_64-linux-gnu/qt5/plugins/xcbglintegrations/libqxcb-glx-integration.so No symbol table info available. #13 0x00007f87ca495326 in QOpenGLContext::swapBuffers(QSurface*) () from /tmp/apport_sandbox_hx8GUx/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 No symbol table info available. #14 0x00007f87cae4978e in QSGGuiThreadRenderLoop::renderWindow(QQuickWindow*) () from /tmp/apport_sandbox_hx8GUx/usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 No symbol table info available. #15 0x00007f87cae4a521 in QSGGuiThreadRenderLoop::event(QEvent*) () from /tmp/apport_sandbox_hx8GUx/usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 No symbol table info available. #16 0x00007f87cb20e05c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /tmp/apport_sandbox_hx8GUx/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 No symbol table info available. #17 0x00007f87cb213516 in QApplication::notify(QObject*, QEvent*) () from /tmp/apport_sandbox_hx8GUx/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 No symbol table info available. #18 0x00007f87c9cf45bb in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /tmp/apport_sandbox_hx8GUx/usr/lib/x86_64-linux-gnu/libQt5Core.so.5 No symbol table info available. #19 0x00007f87c9d4986d in QTimerInfoList::activateTimers() () from /tmp/apport_sandbox_hx8GUx/usr/lib/x86_64-linux-gnu/libQt5Core.so.5 No symbol table info available. #20 0x00007f87c9d49d71 in timerSourceDispatch(_GSource*, int (*)(void*), void*) () from /tmp/apport_sandbox_hx8GUx/usr/lib/x86_64-linux-gnu/libQt5Core.so.5 No symbol table info available. #21 0x00007f87c86cc127 in g_main_context_dispatch () from /tmp/apport_sandbox_hx8GUx/lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #22 0x00007f87c86cc380 in g_main_context_iterate.isra () from /tmp/apport_sandbox_hx8GUx/lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #23 0x00007f87c86cc42c in g_main_context_iteration () from /tmp/apport_sandbox_hx8GUx/lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #24 0x00007f87c9d4aa4f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /tmp/apport_sandbox_hx8GUx/usr/lib/x86_64-linux-gnu/libQt5Core.so.5 No symbol table info available. #25 0x00007f87c9cf1d7a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /tmp/apport_sandbox_hx8GUx/usr/lib/x86_64-linux-gnu/libQt5Core.so.5 No symbol table info available. #26 0x00007f87c9cf9e1c in QCoreApplication::exec() () from /tmp/apport_sandbox_hx8GUx/usr/lib/x86_64-linux-gnu/libQt5Core.so.5 No symbol table info available. #27 0x00005646ccf87e26 in BrowserApplication::run (this=0x7ffebcbf6930) at /build/webbrowser-app-W5j7m8/webbrowser-app-0.23+16.04.20160318/src/app/browserapplication.cpp:261 No locals. #28 0x00005646ccf7ca85 in main (argc=1, argv=0x7ffebcbf6a88) at /build/webbrowser-app-W5j7m8/webbrowser-app-0.23+16.04.20160318/src/app/webbrowser/webbrowser-app.cpp:122 app = {<BrowserApplication> = {<QApplication> = {<No data fields>}, static staticMetaObject = {d = {superdata = 0x7f87cb710140 <QApplication::staticMetaObject>, stringdata = 0x5646ccfca9c0 <qt_meta_stringdata_BrowserApplication>, data = 0x5646ccfca960 <qt_meta_data_BrowserApplication>, static_metacall = 0x5646ccf92bf0 <BrowserApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, m_arguments = {<QList<QString>> = {<QListSpecialMethods<QString>> = {<No data fields>}, {p = {static shared_null = {ref = {atomic = {_q_value = -1}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, d = 0x5646ce80fbe0}, d = 0x5646ce80fbe0}}, <No data fields>}, m_engine = 0x5646ce818880, m_window = 0x5646ce8c13c0, m_component = 0x5646ce8b8570, m_webbrowserWindowProxy = 0x5646ce8b8220, m_singleton = {<QObject> = {<No data fields>}, static staticMetaObject = {d = {superdata = 0x7f87c9f34b00 <QObject::staticMetaObject>, stringdata = 0x5646cc fc9f20 <qt_meta_stringdata_SingleInstanceManager>, data = 0x5646ccfc9e60 <qt_meta_data_SingleInstanceManager>, static_metacall = 0x5646ccf92680 <SingleInstanceManager::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, m_server = <incomplete type>}}, static staticMetaObject = {d = {superdata = 0x5646cd1e70a0 <BrowserApplication::staticMetaObject>, stringdata = 0x5646ccfc8b20 <qt_meta_stringdata_WebbrowserApp>, data = 0x5646ccfc8ae0 <qt_meta_data_WebbrowserApp>, static_metacall = 0x5646ccf86ba0 <WebbrowserApp::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}} ** Project changed: oxide => qtbase-opensource-src (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Apps bug tracking, which is subscribed to webbrowser-app in Ubuntu. https://bugs.launchpad.net/bugs/1560994 Title: webbrowser-app crashed with SIGABRT in oxide::BrowserProcessMainImpl::~BrowserProcessMainImpl Status in qtbase-opensource-src package in Ubuntu: New Status in webbrowser-app package in Ubuntu: Confirmed Bug description: Crash upon maximizimg window. ProblemType: Crash DistroRelease: Ubuntu 16.04 Package: webbrowser-app 0.23+16.04.20160318-0ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-15.31-generic 4.4.6 Uname: Linux 4.4.0-15-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 CurrentDesktop: Unity Date: Wed Mar 23 14:37:35 2016 ExecutablePath: /usr/bin/webbrowser-app InstallationDate: Installed on 2016-03-08 (14 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160205) ProcCmdline: webbrowser-app Signal: 6 SourcePackage: webbrowser-app StacktraceTop: ?? () from /usr/lib/x86_64-linux-gnu/libOxideQtCore.so.0 ?? () from /usr/lib/x86_64-linux-gnu/libOxideQtCore.so.0 ?? () from /usr/lib/x86_64-linux-gnu/libOxideQtCore.so.0 __run_exit_handlers (status=1, listp=0x7f87c91c75f8 <__exit_funcs>, run_list_atexit=run_list_atexit@entry=true) at exit.c:82 __GI_exit (status=<optimized out>) at exit.c:104 Title: webbrowser-app crashed with SIGABRT in __run_exit_handlers() UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qtbase-opensource-src/+bug/1560994/+subscriptions -- Mailing list: https://launchpad.net/~ubuntu-apps-bugs Post to : ubuntu-apps-bugs@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-apps-bugs More help : https://help.launchpad.net/ListHelp