I experience the same problem with 2.3.0-Master. Here is the error output: 
OpenlayersLayer draw
page file: file:////home/tobias/.qgis2/python/plugins/openlayers_plugin/html/stamen_toner.html
QGIS died on signal 11QGIS died on signal 11Could not attach to process.  If your uid matches the uid of the target
process, check the setting of /proc/sys/kernel/yama/ptrace_scope, or try
again as the root user.  For more details, see /etc/sysctl.d/10-ptrace.conf
ptrace: Operation not permitted.
No thread selected
No stack.
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7f3c3f7fe700 (LWP 9322)]
[New Thread 0x7f3c4550a700 (LWP 9321)]
[New Thread 0x7f3c3ffff700 (LWP 9320)]
[New Thread 0x7f3c64efb700 (LWP 9301)]
[New Thread 0x7f3c656fc700 (LWP 9299)]
0x00007f3c7d933ccd in waitpid () from /lib/x86_64-linux-gnu/libc.so.6
[Current thread is 1 (Thread 0x7f3c84c377c0 (LWP 9295))]
#0  0x00007f3c7d933ccd in waitpid () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00000000004f3e20 in qgisCrash(int) ()
No symbol table info available.
#2  
No symbol table info available.
#3  0x00007f3c83427f63 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
No symbol table info available.
#4  0x00007f3c83530136 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
No symbol table info available.
#5  0x00007f3c83437fd3 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
No symbol table info available.
#6  0x00007f3c8362fadb in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
No symbol table info available.
#7  0x00007f3c836303d4 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
No symbol table info available.
#8  0x00007f3c8363cbfd in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
No symbol table info available.
#9  0x00007f3c832a2610 in QWebFrame::QWebFrame(QWebPage*, QWebFrameData*) () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
No symbol table info available.
#10 0x00007f3c832b1142 in QWebPagePrivate::createMainFrame() () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
No symbol table info available.
#11 0x00007f3c832b34f0 in QWebPage::~QWebPage() () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
No symbol table info available.
#12 0x00007f3c4dcdffef in ?? () from /usr/lib/python2.7/dist-packages/PyQt4/QtWebKit.so
No symbol table info available.
#13 0x00007f3c80533478 in QObject::event (this=0x6a873f0, e=) at kernel/qobject.cpp:1176
No locals.
#14 0x00007f3c832b6997 in QWebPage::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
No symbol table info available.
#15 0x00007f3c4dce0135 in ?? () from /usr/lib/python2.7/dist-packages/PyQt4/QtWebKit.so
No symbol table info available.
#16 0x00007f3c7f89c894 in notify_helper (e=0x7f3c340142c0, receiver=0x6a873f0, this=0x2cd08b0) at kernel/qapplication.cpp:4559
        consumed = 
#17 QApplicationPrivate::notify_helper (this=0x2cd08b0, receiver=0x6a873f0, e=0x7f3c340142c0) at kernel/qapplication.cpp:4531
No locals.
#18 0x00007f3c7f8a1713 in QApplication::notify (this=0x7fff0ca0ef90, receiver=0x6a873f0, e=0x7f3c340142c0) at kernel/qapplication.cpp:4420
        d = 0x2cd08b0
        res = false
#19 0x00007f3c814d69b6 in QgsApplication::notify(QObject*, QEvent*) () from /usr/lib/libqgis_core.so.2.3.0
No symbol table info available.
#20 0x00007f3c80519e9c in QCoreApplication::notifyInternal (this=0x7fff0ca0ef90, receiver=0x6a873f0, event=0x7f3c340142c0) at kernel/qcoreapplication.cpp:876
        threadData = 0x2cb2fc0
        returnValue = 
        result = false
        cbdata = {0x6a873f0, 0x7f3c340142c0, 0x7fff0ca0eb8f}
        d = 
#21 0x00007f3c8051dc6a in sendEvent (event=0x7f3c340142c0, receiver=0x6a873f0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
No locals.
#22 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x2cb2fc0) at kernel/qcoreapplication.cpp:1500
        pe = @0x7f3c340142a0: {receiver = 0x6a873f0, event = 0x0, priority = 0}
        e = 0x7f3c340142c0
        r = 0x6a873f0
        locker = {val = 46870536}
        startOffset = 0
        i = @0x2cb2ffc: 9
#23 0x00007f3c80548f93 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
No locals.
#24 postEventSourceDispatch (s=) at kernel/qeventdispatcher_glib.cpp:279
        source = 0x2cb6270
#25 0x00007f3c7c3d6d13 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#26 0x00007f3c7c3d7060 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#27 0x00007f3c7c3d7124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#28 0x00007f3c80549426 in QEventDispatcherGlib::processEvents (this=0x2cb8d80, flags=...) at kernel/qeventdispatcher_glib.cpp:426
        d = 0x2cb2ed0
        canWait = true
        savedFlags = {i = 0}
        result = 
#29 0x00007f3c7f944d9e in QGuiEventDispatcherGlib::processEvents (this=, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
        d = 0x2cb2ed0
        saved_flags = {i = 0}
        returnValue = false
#30 0x00007f3c80518c82 in QEventLoop::processEvents (this=, flags=...) at kernel/qeventloop.cpp:149
        d = 0x2eba280
#31 0x00007f3c80518ed7 in QEventLoop::exec (this=0x7fff0ca0ee40, flags=...) at kernel/qeventloop.cpp:204
        d = 0x2eba280
        locker = {val = 46870792}
        app = 0x7fff0ca0ef90
#32 0x00007f3c8051df67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
        threadData = 0x2cb2fc0
        eventLoop = { = {_vptr.QObject = 0x7f3c8086d650, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7f3c805f3820 "QObject", data = 0x7f3c805f38c0, extradata = 0x7f3c8086ab80}}, static staticMetaObjectExtraData = {objects = 0x0, static_metacall = 0x7f3c80532390 }, d_ptr = {d = 0x2eba280}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7f3c805fc740 "Qt", data = 0x7f3c80600060, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0xd57880, stringdata = 0x7f3c806061c0 "QEventLoop", data = 0x7f3c806061e0, extradata = 0x7f3c8086d6e0}}, static staticMetaObjectExtraData = {objects = 0x0, static_metacall = 0x7f3c8057ae20 }}
        returnCode = 
#33 0x00000000004ee745 in main ()
No symbol table info available.
gdb returned 0