Bug 22542 – Crash on reload when Javascript profiling switched on (enabled and recording)

• Status: RESOLVED
• Resolution: WORKSFORME
• Component: Web Inspector (Deprecated)

[Johan Lund]

Steps to reproduce:

1. Vistit this url: http://www.bindows.net/bindows/samples/applauncher/
2. Enable web inspector and press the record button in the profiler to start it
3. Reload the browser
-> WebKit will crash.

Tested in WebKit 38760.

If you have access to the Bindows framework you can repro locally with the same application (any app will do actually) found in the samples/applauncher folder.

[Jim Driscoll]

I'm getting the same behaviour. With the Develop menu enabled (ISTR that's some kind of preference):

1. Start WebKit. 
2. Go to http://nightly.webkit.org/start/trunk/39737 (I'll see if I can reduce that in a moment)
3. Develop -> Show Error Console
4. Select Profiles
5. "Enable Profiling"
6. Click the record button (dark grey filled circle)
7. Click the main browser reload button

Expected behaviour: does not crash, reloads page, nothing else interesting
Actual behaviour: crashes seemingly as soon as the page is loaded (half a second? A second?)

[Jim Driscoll]

Created attachment 26588 [details]
Crash log

[Jim Driscoll]

Weird, apparently I was completely lying. A crashable URL is http://en-gb.facebook.com/ and it apparently just needs to be (re-)loaded in the current tab while the profiler is "recording".

My current nightly is 39737, of course.

[Jim Driscoll]

I've reduced the test case somewhat, but it's a little unpredictable (sometimes needs a second reload) and seems to rely on a lot of the elements being there. Attachment to follow.
1. open /Applications/WebKit.app/ test.html # Or whatever
2. Develop -> Show Error Console
3. Select Profiles
4. "Enable Profiling"
5. Click the record button (dark grey filled circle)
6. Click the main browser reload button; possibly click it again after the reload.

[Jim Driscoll]

Created attachment 26589 [details]
Test case

This is stripped down and reformatted a little from http://en-gb.facebook.com/

[Jim Driscoll]

Created attachment 26592 [details]
A sufficient test case

It turns out that a fancy test case isn't needed at all, though it takes a bit of work to replicate.

[Jim Driscoll]

It turns out that there doesn't need to be even any javascript to reproduce this: it seems to be a race condition, which I think would normally be triggered when some resources load out of order or something?

1. Start WebKit
2. Go to about:blank or a blank page
2. Develop -> Show Error Console
3. Select Profiles
4. "Enable Profiling"
5. Click the record button (dark grey filled circle)
6. Hammer the reload button like a monkey (this works better if it's a trivial local resource, as it never becomes a "stop" button).

The reload button (after a second or two of hammering) is "stuck on" for half a second, and then WebKit crashes.

[Jim Driscoll]

Created attachment 26593 [details]
Crash log (about:blank, hammering reload button)

Here are the top 10 lines of the stack dump: 

Exception Type:  EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000000000026
Crashed Thread:  0

Thread 0 Crashed:
0   com.apple.JavaScriptCore      	0x004c83fb JSC::Profiler::didExecute(JSC::ExecState*, JSC::JSValuePtr) + 59
1   com.apple.JavaScriptCore      	0x00482ddf JSC::Interpreter::execute(JSC::FunctionBodyNode*, JSC::ExecState*, JSC::JSFunction*, JSC::JSObject*, JSC::ArgList const&, JSC::ScopeChainNode*, JSC::JSValuePtr*) + 527
2   com.apple.JavaScriptCore      	0x0040d215 __ZN3JSCL21functionProtoFuncCallEPNS_9ExecStateEPNS_8JSObjectENS_10JSValuePtrERKNS_7ArgListE + 341
3   com.apple.JavaScriptCore      	0x0046a85a JSC::Interpreter::cti_op_call_NotJSFunction(void*, ...) + 522
4   ???                           	0x18ffa712 0 + 419407634
5   com.apple.JavaScriptCore      	0x00482db8 JSC::Interpreter::execute(JSC::FunctionBodyNode*, JSC::ExecState*, JSC::JSFunction*, JSC::JSObject*, JSC::ArgList const&, JSC::ScopeChainNode*, JSC::JSValuePtr*) + 488
6   com.apple.JavaScriptCore      	0x0041a848 JSC::JSObject::put(JSC::ExecState*, JSC::Identifier const&, JSC::JSValuePtr, JSC::PutPropertySlot&) + 936
7   com.apple.JavaScriptCore      	0x0046d2d2 JSC::Interpreter::cti_op_put_by_id_generic(void*, ...) + 82
8   ???                           	0x184fdb23 0 + 407886627
9   com.apple.JavaScriptCore      	0x00482db8 JSC::Interpreter::execute(JSC::FunctionBodyNode*, JSC::ExecState*, JSC::JSFunction*, JSC::JSObject*, JSC::ArgList const&, JSC::ScopeChainNode*, JSC::JSValuePtr*) + 488

[Jim Driscoll]

Suggest changing the summary to:

Crash on reload when profiling switched on to Crash on reload when Javascript profiling switched on (enabled and recording)

I can't do that 'cos I'm not the reporter!

[Priit Laes (IRC: plaes)]

Here's my crash with WebkitGtk-based epiphany browser.

Backtrace was generated from '/usr/bin/epiphany'

[?1034h[Thread debugging using libthread_db enabled]
[New Thread 0x7f039ad92760 (LWP 25114)]
[New Thread 0x7f038653d950 (LWP 25118)]
0x00007f039612955f in __libc_waitpid (pid=25167, stat_loc=0x7fffa2dd0eb0,
options=0)
    at ../sysdeps/unix/sysv/linux/waitpid.c:41
        in ../sysdeps/unix/sysv/linux/waitpid.c
#0  0x00007f039612955f in __libc_waitpid (pid=25167, stat_loc=0x7fffa2dd0eb0,
options=0)
    at ../sysdeps/unix/sysv/linux/waitpid.c:41
#1  0x00007f0395c63ff9 in IA__g_spawn_sync (working_directory=<value optimized
out>, argv=<value optimized out>, 
    envp=<value optimized out>, flags=<value optimized out>, child_setup=<value
optimized out>, 
    user_data=<value optimized out>, standard_output=0x0, standard_error=0x0,
exit_status=0x0, 
    error=0x7fffa2dd1038) at gspawn.c:382
#2  0x00007f0395c64308 in IA__g_spawn_command_line_sync (command_line=<value
optimized out>, standard_output=0x0, 
    standard_error=0x0, exit_status=0x0, error=0x7fffa2dd1038) at gspawn.c:694
#3  0x00007f0386ab9ba3 in bugbuddy_segv_handle (signum=<value optimized out>)
at gnome-breakpad.cc:369
#4  <signal handler called>
#5  0x00007f03958d01e5 in raise (sig=<value optimized out>) at
../nptl/sysdeps/unix/sysv/linux/raise.c:64
#6  0x00007f03958d1703 in abort () at abort.c:88
#7  0x00007f03958c9229 in __assert_fail (assertion=0x7f03947a30f0 "status ==
CAIRO_STATUS_SUCCESS", 
    file=0x7f03947a5f10 "cairo-pattern.c", line=2249, function=0x7f03947a60c0
"_cairo_pattern_get_extents")
    at assert.c:78
#8  0x00007f0394762140 in _cairo_pattern_get_extents (pattern=<value optimized
out>, extents=0x7fffa2dd1790)
    at cairo-pattern.c:2249
#9  0x00007f039476f03c in _cairo_surface_fallback_paint (surface=0x3b0db70,
op=CAIRO_OPERATOR_OVER, 
    source=0x3af1ae0) at cairo-surface-fallback.c:689
#10 0x00007f039476bcb8 in _cairo_surface_paint (surface=0x3b0db70,
op=CAIRO_OPERATOR_OVER, 
    source=<value optimized out>) at cairo-surface.c:1492
#11 0x00007f0394754b5a in _cairo_gstate_paint (gstate=0x3af5610) at
cairo-gstate.c:878
#12 0x00007f039474eec9 in cairo_paint (cr=0x3b0d0a0) at cairo.c:1938
#13 0x00007f039474ef8d in cairo_paint_with_alpha (cr=0x621a, alpha=0) at
cairo.c:1966
#14 0x00007f03997c4b34 in WebCore::BitmapImage::draw (this=0x7f03811bf750,
context=0x7fffa2dd3020, 
    dst=<value optimized out>, src=<value optimized out>,
op=WebCore::CompositeSourceOver)
    at WebCore/platform/graphics/cairo/ImageCairo.cpp:139
#15 0x00007f0399571f01 in WebCore::GraphicsContext::drawImage
(this=0x7fffa2dd3020, image=0x7f03811bf750, 
    dest=@0x7fffa2dd1b80, src=@0x7fffa2dd1b70, op=WebCore::CompositeSourceOver,
useLowQualityScale=false)
    at WebCore/platform/graphics/GraphicsContext.cpp:439
#16 0x00007f039957208d in WebCore::GraphicsContext::drawImage
(this=0x7fffa2dd3020, image=0x7f03811bf750, 
    dest=@0x7fffa2dd1d10, srcRect=<value optimized out>,
op=WebCore::CompositeSourceOver, 
    useLowQualityScale=false) at
WebCore/platform/graphics/GraphicsContext.cpp:311
#17 0x00007f0399572181 in WebCore::GraphicsContext::drawTiledImage
(this=0x7fffa2dd3020, image=0x7f03811bf750, 
    dest=@0x8, srcRect=@0xffffffffffffffff, hRule=WebCore::Image::StretchTile,
vRule=WebCore::Image::StretchTile, 
    op=WebCore::CompositeSourceOver) at
WebCore/platform/graphics/GraphicsContext.cpp:459
#18 0x00007f03995e18f8 in WebCore::RenderBoxModelObject::paintNinePieceImage
(this=0x7f03813d8a60, 
    graphicsContext=0x7fffa2dd3020, tx=202, ty=403, w=14, h=13,
style=0x7f0380909c98, 
    ninePieceImage=@0x7f03811801c8, op=WebCore::CompositeSourceOver)
    at WebCore/rendering/RenderBoxModelObject.cpp:699
#19 0x00007f03995e1d15 in WebCore::RenderBoxModelObject::paintBorder
(this=0x621a, graphicsContext=0x621a, 
    tx=202, ty=-1, w=61408656, h=-1782650416, style=0x7f0380909c98, begin=true,
end=true)
    at WebCore/rendering/RenderBoxModelObject.cpp:725
#20 0x00007f03995d800e in WebCore::RenderBox::paintBoxDecorations
(this=0x7f03813d8a60, 
    paintInfo=@0x7fffa2dd23b0, tx=202, ty=403) at
WebCore/rendering/RenderBox.cpp:666
#21 0x00007f03995cc953 in WebCore::RenderBlock::paintObject (this=0x621a,
paintInfo=@0x621a, tx=202, ty=403)
    at WebCore/rendering/RenderBlock.cpp:1737
#22 0x00007f03995c1935 in WebCore::RenderBlock::paint (this=0x7f03813d8a60,
paintInfo=@0x7fffa2dd23b0, tx=202, 
    ty=403) at WebCore/rendering/RenderBlock.cpp:1567
#23 0x00007f0399606e07 in WebCore::RenderLayer::paintLayer
(this=0x7f0381379318, rootLayer=0x7f038226f560, 
    p=0x7fffa2dd3020, paintDirtyRect=@0x7fffa2dd2f60, haveTransparency=true, 
    paintRestriction=WebCore::PaintRestrictionNone, paintingRoot=0x0,
appliedTransform=false, 
    temporaryClipRects=false) at WebCore/rendering/RenderLayer.cpp:2017
#24 0x00007f0399607120 in WebCore::RenderLayer::paintLayer
(this=0x7f0381874420, rootLayer=0x7f038226f560, 
    p=0x7fffa2dd3020, paintDirtyRect=@0x7fffa2dd2f60, haveTransparency=false, 
    paintRestriction=WebCore::PaintRestrictionNone, paintingRoot=0x0,
appliedTransform=false, 
    temporaryClipRects=false) at WebCore/rendering/RenderLayer.cpp:2071
#25 0x00007f0399607120 in WebCore::RenderLayer::paintLayer
(this=0x7f038226f720, rootLayer=0x7f038226f560, 
    p=0x7fffa2dd3020, paintDirtyRect=@0x7fffa2dd2f60, haveTransparency=false, 
    paintRestriction=WebCore::PaintRestrictionNone, paintingRoot=0x0,
appliedTransform=false, 
    temporaryClipRects=false) at WebCore/rendering/RenderLayer.cpp:2071
#26 0x00007f0399607120 in WebCore::RenderLayer::paintLayer
(this=0x7f038226f560, rootLayer=0x7f038226f560, 
    p=0x7fffa2dd3020, paintDirtyRect=@0x7fffa2dd2f60, haveTransparency=false, 
    paintRestriction=WebCore::PaintRestrictionNone, paintingRoot=0x0,
appliedTransform=false, 
    temporaryClipRects=false) at WebCore/rendering/RenderLayer.cpp:2071
#27 0x00007f039960742c in WebCore::RenderLayer::paint (this=0x621a, p=<value
optimized out>, 
    damageRect=<value optimized out>, paintRestriction=<value optimized out>,
paintingRoot=<value optimized out>)
    at WebCore/rendering/RenderLayer.cpp:1880
#28 0x00007f039952c4b1 in WebCore::FrameView::paintContents
(this=0x7f038222cc80, p=0x7fffa2dd3020, 
    rect=@0x7fffa2dd2f60) at WebCore/page/FrameView.cpp:1325
#29 0x00007f0399557c3a in WebCore::ScrollView::paint (this=0x7f038222cc80,
context=0x7fffa2dd3020, 
    rect=@0x7fffa2dd2ff0) at WebCore/platform/ScrollView.cpp:693
#30 0x00007f039927ea82 in webkit_web_view_expose_event (widget=<value optimized
out>, event=<value optimized out>)
    at WebKit/gtk/webkit/webkitwebview.cpp:401
#31 0x00007f03986c32b8 in _gtk_marshal_BOOLEAN__BOXED (closure=0x2397010,
return_value=0x7fffa2dd3230, 
    n_param_values=<value optimized out>, param_values=0x37d4d30,
invocation_hint=<value optimized out>, 
    marshal_data=0x7f039927e840) at gtkmarshalers.c:84
#32 0x00007f0395ee32cf in IA__g_closure_invoke (closure=0x2397010,
return_value=0x7fffa2dd3230, n_param_values=2, 
    param_values=0x37d4d30, invocation_hint=0x7fffa2dd31f0) at gclosure.c:767
#33 0x00007f0395ef89ed in signal_emit_unlocked_R (node=0x2397080, detail=0,
instance=0x24da6d0, 
    emission_return=0x7fffa2dd3370, instance_and_params=0x37d4d30) at
gsignal.c:3282
#34 0x00007f0395efa1dc in IA__g_signal_emit_valist (instance=0x24da6d0,
signal_id=<value optimized out>, 
    detail=0, var_args=0x7fffa2dd33d0) at gsignal.c:2987
#35 0x00007f0395efa843 in IA__g_signal_emit (instance=0x621a, signal_id=25114,
detail=6) at gsignal.c:3034
#36 0x00007f03987c9dde in gtk_widget_event_internal (widget=0x24da6d0,
event=0x7fffa2dd3530) at gtkwidget.c:4761
#37 0x00007f03986bce8d in IA__gtk_main_do_event (event=0x7fffa2dd3530) at
gtkmain.c:1558
#38 0x00007f0398321604 in gdk_window_process_updates_internal
(window=0x37ac1f0) at gdkwindow.c:2611
#39 0x00007f0398321b81 in IA__gdk_window_process_all_updates () at
gdkwindow.c:2677
#40 0x00007f0398321ba9 in gdk_window_update_idle (data=0x621a) at
gdkwindow.c:2521
#41 0x00007f0398305c6b in gdk_threads_dispatch (data=0x36151a0) at gdk.c:498
#42 0x00007f0395c2cd59 in IA__g_main_context_dispatch (context=0x2376200) at
gmain.c:1814
#43 0x00007f0395c30410 in g_main_context_iterate (context=0x2376200, block=1,
dispatch=1, 
    self=<value optimized out>) at gmain.c:2448
#44 0x00007f0395c308dd in IA__g_main_loop_run (loop=0x23e2b70) at gmain.c:2656
#45 0x00007f03986bd097 in IA__gtk_main () at gtkmain.c:1205
#46 0x00000000004325e6 in main (argc=1, argv=0x7fffa2dd4aa8) at ephy-main.c:781

Thread 2 (Thread 0x7f038653d950 (LWP 25118)):
#0  0x00007f03959655e6 in __poll (fds=0x23c6fc0, nfds=5, timeout=-1) at
../sysdeps/unix/sysv/linux/poll.c:87
        oldtype = 0
        result = <value optimized out>
#1  0x00007f0395c302af in g_main_context_iterate (context=0x3688890, block=1,
dispatch=1, 
    self=<value optimized out>) at gmain.c:2761
        max_priority = 2147483647
        timeout = -1
        some_ready = <value optimized out>
        nfds = 5
        allocated_nfds = <value optimized out>
        fds = (GPollFD *) 0x23c6fc0
        __PRETTY_FUNCTION__ = "g_main_context_iterate"
#2  0x00007f0395c308dd in IA__g_main_loop_run (loop=0x3132960) at gmain.c:2656
        self = (GThread *) 0x312d570
        __PRETTY_FUNCTION__ = "IA__g_main_loop_run"
#3  0x00007f039526de70 in link_io_thread_fn (data=<value optimized out>) at
linc.c:396
No locals.
#4  0x00007f0395c55e96 in g_thread_create_proxy (data=0x312d570) at
gthread.c:635
        __PRETTY_FUNCTION__ = "g_thread_create_proxy"
#5  0x00007f0396122017 in start_thread (arg=<value optimized out>) at
pthread_create.c:297
        __res = <value optimized out>
        pd = (struct pthread *) 0x7f038653d950
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139653115271504,
2468725153397472788, 139653083728528, 
        139653115269616, 0, 4096, -2574474771627246060, -2574510503910310380},
mask_was_saved = 0}}, priv = {
    pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype =
0}}}
        not_first_call = <value optimized out>
        robust = <value optimized out>
#6  0x00007f039596df7d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#7  0x0000000000000000 in ?? ()
No symbol table info available.

Thread 1 (Thread 0x7f039ad92760 (LWP 25114)):
#0  0x00007f039612955f in __libc_waitpid (pid=25167, stat_loc=0x7fffa2dd0eb0,
options=0)
    at ../sysdeps/unix/sysv/linux/waitpid.c:41
        oldtype = 1
        result = <value optimized out>
#1  0x00007f0395c63ff9 in IA__g_spawn_sync (working_directory=<value optimized
out>, argv=<value optimized out>, 
    envp=<value optimized out>, flags=<value optimized out>, child_setup=<value
optimized out>, 
    user_data=<value optimized out>, standard_output=0x0, standard_error=0x0,
exit_status=0x0, 
    error=0x7fffa2dd1038) at gspawn.c:382
        outpipe = -1
        errpipe = -1
        pid = 25167
        fds = {__fds_bits = {40905376, 8, 16, 16, 61816112, 0, 16, 0, 61816136,
61803344, 61816112, 
    140735925784632, 3, 139653374315542, 140735925784248, 140735925784360}}
        ret = <value optimized out>
        outstr = (GString *) 0x0
        errstr = (GString *) 0x0
        failed = 0
        status = <value optimized out>
        __PRETTY_FUNCTION__ = "IA__g_spawn_sync"
#2  0x00007f0395c64308 in IA__g_spawn_command_line_sync (command_line=<value
optimized out>, standard_output=0x0, 
    standard_error=0x0, exit_status=0x0, error=0x7fffa2dd1038) at gspawn.c:694
        retval = 0
        argv = (gchar **) 0x3af3d30
        __PRETTY_FUNCTION__ = "IA__g_spawn_command_line_sync"
#3  0x00007f0386ab9ba3 in bugbuddy_segv_handle (signum=<value optimized out>)
at gnome-breakpad.cc:369
        in_segv = 1
#4  <signal handler called>
No locals.
#5  0x00007f03958d01e5 in raise (sig=<value optimized out>) at
../nptl/sysdeps/unix/sysv/linux/raise.c:64
        pid = <value optimized out>
        selftid = <value optimized out>
#6  0x00007f03958d1703 in abort () at abort.c:88
        act = {__sigaction_handler = {sa_handler = 0x7f0395bed860
<_IO_2_1_stderr_>, 
    sa_sigaction = 0x7f0395bed860 <_IO_2_1_stderr_>}, sa_mask = {__val =
{139653371629934, 140735925785872, 2249, 
      140735925786112, 139653370875558, 206158430232, 140735925786128,
140735925785904, 139653370785448, 
      206158430256, 140735925786152, 61408656, 61807440, 61823424,
6007607642770457376, 140735925805019}}, 
  sa_flags = -1784966802, sa_restorer = 0x7f03947a5f10 <_fini+12200>}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#7  0x00007f03958c9229 in __assert_fail (assertion=0x7f03947a30f0 "status ==
CAIRO_STATUS_SUCCESS", 
    file=0x7f03947a5f10 "cairo-pattern.c", line=2249, function=0x7f03947a60c0
"_cairo_pattern_get_extents")
    at assert.c:78
        buf = 0x3a90590 "Pë¾\225\003\177"
        errstr = "Unexpected error.\n"
#8  0x00007f0394762140 in _cairo_pattern_get_extents (pattern=<value optimized
out>, extents=0x7fffa2dd1790)
    at cairo-pattern.c:2249
        status = CAIRO_STATUS_SUCCESS
        surface_extents = {x = 0, y = 0, width = 53, height = 13}
        y1 = 0
        x2 = 53
        imatrix = {xx = -nan(0x8000000000000), yx = 0, xy =
-nan(0x8000000000000), yy = 1, 
  x0 = -nan(0x8000000000000), y0 = 0}
        x1 = 0
        y2 = 13
        __PRETTY_FUNCTION__ = "_cairo_pattern_get_extents"
#9  0x00007f039476f03c in _cairo_surface_fallback_paint (surface=0x3b0db70,
op=CAIRO_OPERATOR_OVER, 
    source=0x3af1ae0) at cairo-surface-fallback.c:689
        source_extents = {x = -1562562528, y = 32767, width = 2490779295,
height = 32515}
        status = CAIRO_STATUS_SUCCESS
        extents = {x = 0, y = 0, width = 14, height = 13}
        box = {p1 = {x = 0, y = 0}, p2 = {x = 0, y = 0}}
        traps = {status = CAIRO_STATUS_SUCCESS, extents = {p1 = {x = 1792, y =
160}, p2 = {x = 0, y = 112}}, 
  num_traps = 0, traps_size = -1804182088, traps = 0x3af56d8, traps_embedded =
{{top = 61919392, bottom = 0, 
      left = {p1 = {x = 61922160, y = 0}, p2 = {x = 61822680, y = 8}}, right =
{p1 = {x = 61922160, y = 0}, p2 = {
          x = 112, y = 0}}}}, has_limits = -1782650368, limits = {p1 = {x =
32515, y = -1562568696}, p2 = {
      x = 32767, y = 2}}}
#10 0x00007f039476bcb8 in _cairo_surface_paint (surface=0x3b0db70,
op=CAIRO_OPERATOR_OVER, 
    source=<value optimized out>) at cairo-surface.c:1492
        status = CAIRO_STATUS_SUCCESS
        dev_source = (cairo_pattern_t *) 0x3af1ae0
        __PRETTY_FUNCTION__ = "_cairo_surface_paint"
#11 0x00007f0394754b5a in _cairo_gstate_paint (gstate=0x3af5610) at
cairo-gstate.c:878
        status = CAIRO_STATUS_SUCCESS
        pattern = {base = {type = CAIRO_PATTERN_TYPE_SURFACE, ref_count =
{ref_count = 0}, 
    status = CAIRO_STATUS_SUCCESS, user_data = {size = 0, num_elements = 0,
element_size = 24, elements = 0x0, 
      is_snapshot = 0}, matrix = {xx = inf, yx = 0, xy = -nan(0x8000000000000),
yy = 1, x0 = -inf, y0 = -403}, 
    filter = CAIRO_FILTER_NEAREST, extend = CAIRO_EXTEND_NONE}, solid = {base =
{
      type = CAIRO_PATTERN_TYPE_SURFACE, ref_count = {ref_count = 0}, status =
CAIRO_STATUS_SUCCESS, user_data = {
        size = 0, num_elements = 0, element_size = 24, elements = 0x0,
is_snapshot = 0}, matrix = {xx = inf, 
        yx = 0, xy = -nan(0x8000000000000), yy = 1, x0 = -inf, y0 = -403},
filter = CAIRO_FILTER_NEAREST, 
      extend = CAIRO_EXTEND_NONE}, color = {red = 2.9925145105986963e-316,
green = 0, 
      blue = 6.8997923719941029e-310, alpha = 4.9406564584124654e-324,
red_short = 0, green_short = 0, 
      blue_short = 32515, alpha_short = 0}, content = 0}, surface = {base =
{type = CAIRO_PATTERN_TYPE_SURFACE, 
      ref_count = {ref_count = 0}, status = CAIRO_STATUS_SUCCESS, user_data =
{size = 0, num_elements = 0, 
        element_size = 24, elements = 0x0, is_snapshot = 0}, matrix = {xx =
inf, yx = 0, 
        xy = -nan(0x8000000000000), yy = 1, x0 = -inf, y0 = -403}, filter =
CAIRO_FILTER_NEAREST, 
      extend = CAIRO_EXTEND_NONE}, surface = 0x39c3650}, gradient = {base =
{base = {
        type = CAIRO_PATTERN_TYPE_SURFACE, ref_count = {ref_count = 0}, status
= CAIRO_STATUS_SUCCESS, 
        user_data = {size = 0, num_elements = 0, element_size = 24, elements =
0x0, is_snapshot = 0}, matrix = {
          xx = inf, yx = 0, xy = -nan(0x8000000000000), yy = 1, x0 = -inf, y0 =
-403}, 
        filter = CAIRO_FILTER_NEAREST, extend = CAIRO_EXTEND_NONE}, n_stops =
60569168, stops_size = 0, 
      stops = 0x0, stops_embedded = {{offset = 6.8997923719941029e-310, color =
{red = 4.9406564584124654e-324, 
            green = 6.8996693143235829e-310, blue = 0, alpha =
1.1857575500189917e-322, red_short = 0, 
            green_short = 0, blue_short = 0, alpha_short = 0}}, {offset = 0,
color = {red = 1, green = 0, 
            blue = 0, alpha = 1, red_short = 0, green_short = 0, blue_short =
24576, alpha_short = 49252}}}}, 
    linear = {base = {base = {type = CAIRO_PATTERN_TYPE_SURFACE, ref_count =
{ref_count = 0}, 
          status = CAIRO_STATUS_SUCCESS, user_data = {size = 0, num_elements =
0, element_size = 24, 
            elements = 0x0, is_snapshot = 0}, matrix = {xx = inf, yx = 0, xy =
-nan(0x8000000000000), yy = 1, 
            x0 = -inf, y0 = -403}, filter = CAIRO_FILTER_NEAREST, extend =
CAIRO_EXTEND_NONE}, 
        n_stops = 60569168, stops_size = 0, stops = 0x0, stops_embedded =
{{offset = 6.8997923719941029e-310, 
            color = {red = 4.9406564584124654e-324, green =
6.8996693143235829e-310, blue = 0, 
              alpha = 1.1857575500189917e-322, red_short = 0, green_short = 0,
blue_short = 0, alpha_short = 0}}, 
          {offset = 0, color = {red = 1, green = 0, blue = 0, alpha = 1,
red_short = 0, green_short = 0, 
              blue_short = 24576, alpha_short = 49252}}}}, p1 = {x = 0, y =
-1065799680}, p2 = {x = 0, 
        y = 2147483647}}, radial = {base = {base = {type =
CAIRO_PATTERN_TYPE_SURFACE, ref_count = {
            ref_count = 0}, status = CAIRO_STATUS_SUCCESS, user_data = {size =
0, num_elements = 0, 
            element_size = 24, elements = 0x0, is_snapshot = 0}, matrix = {xx =
inf, yx = 0, 
            xy = -nan(0x8000000000000), yy = 1, x0 = -inf, y0 = -403}, filter =
CAIRO_FILTER_NEAREST, 
          extend = CAIRO_EXTEND_NONE}, n_stops = 60569168, stops_size = 0,
stops = 0x0, stops_embedded = {{
            offset = 6.8997923719941029e-310, color = {red =
4.9406564584124654e-324, 
              green = 6.8996693143235829e-310, blue = 0, alpha =
1.1857575500189917e-322, red_short = 0, 
              green_short = 0, blue_short = 0, alpha_short = 0}}, {offset = 0,
color = {red = 1, green = 0, 
              blue = 0, alpha = 1, red_short = 0, green_short = 0, blue_short =
24576, alpha_short = 49252}}}}, 
      c1 = {x = 0, y = -1065799680}, r1 = 0, c2 = {x = 2147483647, y =
2147483647}, r2 = -2147483648}}}
#12 0x00007f039474eec9 in cairo_paint (cr=0x3b0d0a0) at cairo.c:1938
        status = <value optimized out>
#13 0x00007f039474ef8d in cairo_paint_with_alpha (cr=0x621a, alpha=0) at
cairo.c:1966
        status = <value optimized out>
        color = {red = 6.8997763335692981e-310, green =
3.0592244398577315e-316, blue = 9.8813129168249309e-324, 
  alpha = 2.9925145105986963e-316, red_short = 12320, green_short = 41693,
blue_short = 32767, alpha_short = 0}
        pattern = {base = {type = 3584, ref_count = {ref_count = 1536}, status
= 3584, user_data = {size = 1, 
      num_elements = 0, element_size = 0, elements = 0x3ff0000000000d00,
is_snapshot = 0}, matrix = {xx = 0, 
      yx = 0, xy = 6.8997922613184576e-310, yy = 3.055035553686031e-316, x0 =
0, y0 = 0}, filter = 2488474880, 
    extend = 32515}, color = {red = 3.0592481550087318e-316, green = 0, blue =
7.0620019941031575e-311, 
    alpha = 0, red_short = 14, green_short = 0, blue_short = 13, alpha_short =
0}, content = 1792}
#14 0x00007f03997c4b34 in WebCore::BitmapImage::draw (this=0x7f03811bf750,
context=0x7fffa2dd3020, 
    dst=<value optimized out>, src=<value optimized out>,
op=WebCore::CompositeSourceOver)
    at WebCore/platform/graphics/cairo/ImageCairo.cpp:139
        image = (cairo_surface_t *) 0x39c3650
        dstRect = {m_location = {m_x = 209, m_y = 403}, m_size = {m_width = 0,
m_height = 6}}
        cr = (cairo_t *) 0x3b0d0a0
        pattern = (cairo_pattern_t *) 0x3af0a80
        matrix = {xx = inf, yx = 0, xy = 0, yy = 1, x0 = 7, y0 = 0}
#15 0x00007f0399571f01 in WebCore::GraphicsContext::drawImage
(this=0x7fffa2dd3020, image=0x7f03811bf750, 
    dest=@0x7fffa2dd1b80, src=@0x7fffa2dd1b70, op=WebCore::CompositeSourceOver,
useLowQualityScale=false)
    at WebCore/platform/graphics/GraphicsContext.cpp:439
        tsw = 39
        tsh = 6
        tw = 0
        th = 6
#16 0x00007f039957208d in WebCore::GraphicsContext::drawImage
(this=0x7fffa2dd3020, image=0x7f03811bf750, 
    dest=@0x7fffa2dd1d10, srcRect=<value optimized out>,
op=WebCore::CompositeSourceOver, 
    useLowQualityScale=false) at
WebCore/platform/graphics/GraphicsContext.cpp:311
No locals.
#17 0x00007f0399572181 in WebCore::GraphicsContext::drawTiledImage
(this=0x7fffa2dd3020, image=0x7f03811bf750, 
    dest=@0x8, srcRect=@0xffffffffffffffff, hRule=WebCore::Image::StretchTile,
vRule=WebCore::Image::StretchTile, 
    op=WebCore::CompositeSourceOver) at
WebCore/platform/graphics/GraphicsContext.cpp:459
No locals.
#18 0x00007f03995e18f8 in WebCore::RenderBoxModelObject::paintNinePieceImage
(this=0x7f03813d8a60, 
    graphicsContext=0x7fffa2dd3020, tx=202, ty=403, w=14, h=13,
style=0x7f0380909c98, 
    ninePieceImage=@0x7f03811801c8, op=WebCore::CompositeSourceOver)
    at WebCore/rendering/RenderBoxModelObject.cpp:699
        styleImage = (class WebCore::StyleImage *) 0xd1
        clipped = false
        imageSize = <value optimized out>
        imageWidth = 53
        imageHeight = 13
        topSlice = 6
        bottomSlice = 6
        leftSlice = 7
        hRule = WebCore::StretchImageRule
        vRule = WebCore::StretchImageRule
        fitToBorder = <value optimized out>
        leftWidth = 7
        topWidth = 6
        bottomWidth = 6
        drawTop = true
        drawBottom = true
        drawMiddle = false
        image = (class WebCore::Image *) 0x7f03811bf750
#19 0x00007f03995e1d15 in WebCore::RenderBoxModelObject::paintBorder
(this=0x621a, graphicsContext=0x621a, 
    tx=202, ty=-1, w=61408656, h=-1782650416, style=0x7f0380909c98, begin=true,
end=true)
    at WebCore/rendering/RenderBoxModelObject.cpp:725
        tt = 3
        bt = 127
        rt = false
        lt = false
        ts = <value optimized out>
        bs = <value optimized out>
        ls = <value optimized out>
        rs = <value optimized out>
        renderTop = <value optimized out>
        renderLeft = <value optimized out>
        renderRight = <value optimized out>
        renderBottom = <value optimized out>
        renderRadii = <value optimized out>
        topLeft = {m_width = 403, m_height = 0}
        topRight = {m_width = 403, m_height = 0}
        bottomLeft = {m_width = -2126673312, m_height = 32515}
        bottomRight = {m_width = 202, m_height = 0}
        firstAngleStart = <value optimized out>
        secondAngleStart = <value optimized out>
        firstAngleSpan = <value optimized out>
        secondAngleSpan = <value optimized out>
        upperLeftBorderStylesMatch = <value optimized out>
        upperRightBorderStylesMatch = <value optimized out>
        lowerLeftBorderStylesMatch = <value optimized out>
        lowerRightBorderStylesMatch = <value optimized out>
#20 0x00007f03995d800e in WebCore::RenderBox::paintBoxDecorations
(this=0x7f03813d8a60, 
    paintInfo=@0x7fffa2dd23b0, tx=202, ty=403) at
WebCore/rendering/RenderBox.cpp:666
        w = 14
        mh = 13
        themePainted = <value optimized out>
#21 0x00007f03995cc953 in WebCore::RenderBlock::paintObject (this=0x621a,
paintInfo=@0x621a, tx=202, ty=403)
    at WebCore/rendering/RenderBlock.cpp:1737
        paintPhase = WebCore::PaintPhaseBlockBackground
        scrolledX = <value optimized out>
        scrolledY = <value optimized out>
#22 0x00007f03995c1935 in WebCore::RenderBlock::paint (this=0x7f03813d8a60,
paintInfo=@0x7fffa2dd23b0, tx=202, 
    ty=403) at WebCore/rendering/RenderBlock.cpp:1567
        phase = WebCore::PaintPhaseBlockBackground
        pushedClip = false
#23 0x00007f0399606e07 in WebCore::RenderLayer::paintLayer
(this=0x7f0381379318, rootLayer=0x7f038226f560, 
    p=0x7fffa2dd3020, paintDirtyRect=@0x7fffa2dd2f60, haveTransparency=true, 
    paintRestriction=WebCore::PaintRestrictionNone, paintingRoot=0x0,
appliedTransform=false, 
    temporaryClipRects=false) at WebCore/rendering/RenderLayer.cpp:2017
        paintInfo = {context = 0x7fffa2dd3020, rect = {m_location = {m_x = 200,
m_y = 392}, m_size = {
      m_width = 824, m_height = 35}}, phase =
WebCore::PaintPhaseBlockBackground, forceBlackText = false, 
  paintingRoot = 0x0, outlineObjects = 0x0}
        layerBounds = {m_location = {m_x = 202, m_y = 403}, m_size = {m_width =
14, m_height = 13}}
        damageRect = {m_location = {m_x = 200, m_y = 392}, m_size = {m_width =
824, m_height = 35}}
        clipRectToApply = {m_location = {m_x = 200, m_y = 392}, m_size =
{m_width = 824, m_height = 35}}
        outlineRect = {m_location = {m_x = 200, m_y = 392}, m_size = {m_width =
824, m_height = 35}}
        x = <value optimized out>
        y = <value optimized out>
        tx = 209
        ty = 392
        selectionOnly = false
        paintingRootForRenderer = (class WebCore::RenderObject *) 0x0
        shouldPaint = <value optimized out>
#24 0x00007f0399607120 in WebCore::RenderLayer::paintLayer
(this=0x7f0381874420, rootLayer=0x7f038226f560, 
    p=0x7fffa2dd3020, paintDirtyRect=@0x7fffa2dd2f60, haveTransparency=false, 
    paintRestriction=WebCore::PaintRestrictionNone, paintingRoot=0x0,
appliedTransform=false, 
    temporaryClipRects=false) at WebCore/rendering/RenderLayer.cpp:2071
        it = (class WebCore::RenderLayer **) 0x7f03818334b0
        layerBounds = {m_location = {m_x = 0, m_y = 56}, m_size = {m_width =
1024, m_height = 642}}
        damageRect = {m_location = {m_x = 0, m_y = 56}, m_size = {m_width =
1024, m_height = 619}}
        clipRectToApply = {m_location = {m_x = 0, m_y = 56}, m_size = {m_width
= 1024, m_height = 619}}
        outlineRect = {m_location = {m_x = 0, m_y = 0}, m_size = {m_width =
1024, m_height = 675}}
        x = <value optimized out>
        y = <value optimized out>
        tx = 0
        ty = 0
        selectionOnly = false
        paintingRootForRenderer = (class WebCore::RenderObject *) 0x0
        shouldPaint = true
#25 0x00007f0399607120 in WebCore::RenderLayer::paintLayer
(this=0x7f038226f720, rootLayer=0x7f038226f560, 
    p=0x7fffa2dd3020, paintDirtyRect=@0x7fffa2dd2f60, haveTransparency=false, 
    paintRestriction=WebCore::PaintRestrictionNone, paintingRoot=0x0,
appliedTransform=false, 
    temporaryClipRects=false) at WebCore/rendering/RenderLayer.cpp:2071
        it = (class WebCore::RenderLayer **) 0x7f0381443a90
        layerBounds = {m_location = {m_x = 0, m_y = 0}, m_size = {m_width =
1024, m_height = 0}}
        damageRect = {m_location = {m_x = 0, m_y = 0}, m_size = {m_width =
1024, m_height = 675}}
        clipRectToApply = {m_location = {m_x = 0, m_y = 0}, m_size = {m_width =
1024, m_height = 675}}
        outlineRect = {m_location = {m_x = 0, m_y = 0}, m_size = {m_width =
1024, m_height = 675}}
        x = <value optimized out>
        y = <value optimized out>
        tx = 0
        ty = 0
        selectionOnly = false
        paintingRootForRenderer = (class WebCore::RenderObject *) 0x0
        shouldPaint = true
#26 0x00007f0399607120 in WebCore::RenderLayer::paintLayer
(this=0x7f038226f560, rootLayer=0x7f038226f560, 
    p=0x7fffa2dd3020, paintDirtyRect=@0x7fffa2dd2f60, haveTransparency=false, 
    paintRestriction=WebCore::PaintRestrictionNone, paintingRoot=0x0,
appliedTransform=false, 
    temporaryClipRects=false) at WebCore/rendering/RenderLayer.cpp:2071
        it = (class WebCore::RenderLayer **) 0x7f0381443a08
        layerBounds = {m_location = {m_x = 0, m_y = 0}, m_size = {m_width =
1024, m_height = 698}}
        damageRect = {m_location = {m_x = 0, m_y = 0}, m_size = {m_width =
1024, m_height = 675}}
        clipRectToApply = {m_location = {m_x = 0, m_y = 0}, m_size = {m_width =
1024, m_height = 675}}
        outlineRect = {m_location = {m_x = 0, m_y = 0}, m_size = {m_width =
1024, m_height = 675}}
        x = <value optimized out>
        y = <value optimized out>
        tx = 0
        ty = 0
        selectionOnly = false
        paintingRootForRenderer = (class WebCore::RenderObject *) 0x0
        shouldPaint = true
#27 0x00007f039960742c in WebCore::RenderLayer::paint (this=0x621a, p=<value
optimized out>, 
    damageRect=<value optimized out>, paintRestriction=<value optimized out>,
paintingRoot=<value optimized out>)
    at WebCore/rendering/RenderLayer.cpp:1880
No locals.
#28 0x00007f039952c4b1 in WebCore::FrameView::paintContents
(this=0x7f038222cc80, p=0x7fffa2dd3020, 
    rect=@0x7fffa2dd2f60) at WebCore/page/FrameView.cpp:1325
        document = (class WebCore::Document *) 0x7f039acc8400
        isTopLevelPainter = true
        contentRenderer = (class WebCore::RenderView *) 0x7f038226f420
        eltRenderer = (class WebCore::RenderObject *) 0x0
#29 0x00007f0399557c3a in WebCore::ScrollView::paint (this=0x7f038222cc80,
context=0x7fffa2dd3020, 
    rect=@0x7fffa2dd2ff0) at WebCore/platform/ScrollView.cpp:693
        documentDirtyRect = {m_location = {m_x = 0, m_y = 0}, m_size = {m_width
= 1024, m_height = 675}}
        panScrollIcon = (WTF::RefPtr<WebCore::Image> &) @0x0: <error reading
variable>
#30 0x00007f039927ea82 in webkit_web_view_expose_event (widget=<value optimized
out>, event=<value optimized out>)
    at WebKit/gtk/webkit/webkitwebview.cpp:401
        rect = {m_location = {m_x = 0, m_y = 0}, m_size = {m_width = 1024,
m_height = 675}}
        cr = <value optimized out>
        ctx = {<WTFNoncopyable::Noncopyable> = {<No data fields>}, m_common =
0x7f038090ae70, 
  m_data = 0x7f03812dd5f0}
        rects = {<WTFNoncopyable::Noncopyable> = {<No data fields>}, m_ptr =
0x3b0d490}
        rectCount = 13
        priv = (WebKitWebViewPrivate *) 0x24da750
        frame = (class WebCore::Frame *) 0x7f039ad51800
#31 0x00007f03986c32b8 in _gtk_marshal_BOOLEAN__BOXED (closure=0x2397010,
return_value=0x7fffa2dd3230, 
    n_param_values=<value optimized out>, param_values=0x37d4d30,
invocation_hint=<value optimized out>, 
    marshal_data=0x7f039927e840) at gtkmarshalers.c:84
        data1 = (gpointer) 0x24da6d0
        data2 = (gpointer) 0x6
        v_return = <value optimized out>
        __PRETTY_FUNCTION__ = "_gtk_marshal_BOOLEAN__BOXED"
#32 0x00007f0395ee32cf in IA__g_closure_invoke (closure=0x2397010,
return_value=0x7fffa2dd3230, n_param_values=2, 
    param_values=0x37d4d30, invocation_hint=0x7fffa2dd31f0) at gclosure.c:767
        marshal = (GClosureMarshal) 0x7f0395ee17d0 <g_type_class_meta_marshal>
        marshal_data = <value optimized out>
        __PRETTY_FUNCTION__ = "IA__g_closure_invoke"
#33 0x00007f0395ef89ed in signal_emit_unlocked_R (node=0x2397080, detail=0,
instance=0x24da6d0, 
    emission_return=0x7fffa2dd3370, instance_and_params=0x37d4d30) at
gsignal.c:3282
        accumulator = (SignalAccumulator *) 0x2395ff0
        emission = {next = 0x0, instance = 0x24da6d0, ihint = {signal_id = 38,
detail = 0, 
    run_type = G_SIGNAL_RUN_LAST}, state = EMISSION_RUN, chain_type = 56935344}
        class_closure = (GClosure *) 0x2397010
        handler_list = (Handler *) 0x0
        return_accu = (GValue *) 0x7fffa2dd3230
        accu = {g_type = 20, data = {{v_int = 0, v_uint = 0, v_long = 0,
v_ulong = 0, v_int64 = 0, v_uint64 = 0, 
      v_float = 0, v_double = 0, v_pointer = 0x0}, {v_int = 0, v_uint = 0,
v_long = 0, v_ulong = 0, v_int64 = 0, 
      v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
        signal_id = 38
        max_sequential_handler_number = 2481
        return_value_altered = 0
#34 0x00007f0395efa1dc in IA__g_signal_emit_valist (instance=0x24da6d0,
signal_id=<value optimized out>, 
    detail=0, var_args=0x7fffa2dd33d0) at gsignal.c:2987
        return_value = {g_type = 20, data = {{v_int = 0, v_uint = 0, v_long =
0, v_ulong = 0, v_int64 = 0, 
      v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}, {v_int = 0,
v_uint = 0, v_long = 0, v_ulong = 0, 
      v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
        error = <value optimized out>
        signal_return_type = 20
        param_values = (GValue *) 0x37d4d48
        node = (SignalNode *) 0x2397080
        i = 1
        n_params = 1
        __PRETTY_FUNCTION__ = "IA__g_signal_emit_valist"
#35 0x00007f0395efa843 in IA__g_signal_emit (instance=0x621a, signal_id=25114,
detail=6) at gsignal.c:3034
        var_args = {{gp_offset = 32, fp_offset = 48, overflow_arg_area =
0x7fffa2dd34b0, 
    reg_save_area = 0x7fffa2dd33f0}}
#36 0x00007f03987c9dde in gtk_widget_event_internal (widget=0x24da6d0,
event=0x7fffa2dd3530) at gtkwidget.c:4761
        signal_num = <value optimized out>
        return_val = 0
#37 0x00007f03986bce8d in IA__gtk_main_do_event (event=0x7fffa2dd3530) at
gtkmain.c:1558
        event_widget = (GtkWidget *) 0x24da6d0
        grab_widget = (GtkWidget *) 0x24da6d0
        window_group = (GtkWindowGroup *) 0x23e1720
        rewritten_event = (GdkEvent *) 0x0
        tmp_list = <value optimized out>
        __PRETTY_FUNCTION__ = "IA__gtk_main_do_event"
#38 0x00007f0398321604 in gdk_window_process_updates_internal
(window=0x37ac1f0) at gdkwindow.c:2611
        event = {type = GDK_EXPOSE, any = {type = GDK_EXPOSE, window =
0x37ac1f0, send_event = 0 '\0'}, expose = {
    type = GDK_EXPOSE, window = 0x37ac1f0, send_event = 0 '\0', area = {x = 0,
y = 0, width = 1024, 
      height = 675}, region = 0x3a17760, count = 0}, no_expose = {type =
GDK_EXPOSE, window = 0x37ac1f0, 
    send_event = 0 '\0'}, visibility = {type = GDK_EXPOSE, window = 0x37ac1f0,
send_event = 0 '\0', 
    state = GDK_VISIBILITY_UNOBSCURED}, motion = {type = GDK_EXPOSE, window =
0x37ac1f0, send_event = 0 '\0', 
    time = 0, x = 2.1729236899484389e-311, y = 6.9531436082892572e-310, axes =
0x3a17760, state = 0, 
    is_hint = 32515, device = 0x7f03961234f0, x_root = 3.0349266866477756e-316, 
    y_root = 1.8371336974960911e-316}, button = {type = GDK_EXPOSE, window =
0x37ac1f0, send_event = 0 '\0', 
    time = 0, x = 2.1729236899484389e-311, y = 6.9531436082892572e-310, axes =
0x3a17760, state = 0, 
    button = 32515, device = 0x7f03961234f0, x_root = 3.0349266866477756e-316,
y_root = 1.8371336974960911e-316}, 
  scroll = {type = GDK_EXPOSE, window = 0x37ac1f0, send_event = 0 '\0', time =
0, x = 2.1729236899484389e-311, 
    y = 6.9531436082892572e-310, state = 60913504, direction = GDK_SCROLL_UP,
device = 0x7f0300000000, 
    x_root = 6.8997937089663727e-310, y_root = 3.0349266866477756e-316}, key =
{type = GDK_EXPOSE, 
    window = 0x37ac1f0, send_event = 0 '\0', time = 0, state = 0, keyval =
1024, length = 675, 
    string = 0x3a17760 "\020", hardware_keycode = 0, group = 0 '\0',
is_modifier = 0}, crossing = {
    type = GDK_EXPOSE, window = 0x37ac1f0, send_event = 0 '\0', subwindow =
0x40000000000, time = 675, 
    x = 3.0095269694213355e-316, y = 6.8996693143235829e-310, x_root =
6.8997937089663727e-310, 
    y_root = 3.0349266866477756e-316, mode = 37184000, detail =
GDK_NOTIFY_ANCESTOR, focus = 61777232, 
    state = 0}, focus_change = {type = GDK_EXPOSE, window = 0x37ac1f0,
send_event = 0 '\0', in = 566}, 
  configure = {type = GDK_EXPOSE, window = 0x37ac1f0, send_event = 0 '\0', x =
0, y = 0, width = 1024, 
    height = 675}, property = {type = GDK_EXPOSE, window = 0x37ac1f0,
send_event = 0 '\0', atom = 0x40000000000, 
    time = 675, state = 32767}, selection = {type = GDK_EXPOSE, window =
0x37ac1f0, send_event = 0 '\0', 
    selection = 0x40000000000, target = 0x7fff000002a3, property = 0x3a17760,
time = 0, requestor = 32515}, 
  owner_change = {type = GDK_EXPOSE, window = 0x37ac1f0, send_event = 0 '\0',
owner = 0, 
    reason = GDK_OWNER_CHANGE_NEW_OWNER, selection = 0x7fff000002a3, time =
60913504, selection_time = 0}, 
  proximity = {type = GDK_EXPOSE, window = 0x37ac1f0, send_event = 0 '\0', time
= 0, device = 0x40000000000}, 
  client = {type = GDK_EXPOSE, window = 0x37ac1f0, send_event = 0 '\0',
message_type = 0x40000000000, 
    data_format = 675, data = {b =
"`w¡\003\000\000\000\000\000\000\000\000\003\177\000\000ð4\022\226", s = {
        30560, 929, 0, 0, 0, 0, 32515, 0, 13552, -27118}, l = {60913504,
139650861629440, 139653379405040, 
        61427600, 37184000}}}, dnd = {type = GDK_EXPOSE, window = 0x37ac1f0,
send_event = 0 '\0', 
    context = 0x40000000000, time = 675, x_root = 32767, y_root = 0},
window_state = {type = GDK_EXPOSE, 
    window = 0x37ac1f0, send_event = 0 '\0', changed_mask = 0, new_window_state
= 0}, setting = {
    type = GDK_EXPOSE, window = 0x37ac1f0, send_event = 0 '\0', action =
GDK_SETTING_ACTION_NEW, 
    name = 0x40000000000 <Address 0x40000000000 out of bounds>}, grab_broken =
{type = GDK_EXPOSE, 
    window = 0x37ac1f0, send_event = 0 '\0', keyboard = 0, implicit = 0,
grab_window = 0x7fff000002a3}}
        window_rect = {x = 0, y = 0, width = 1024, height = 698}
        expose_region = (GdkRegion *) 0x3a17760
        window_region = (GdkRegion *) 0x36e54a0
        width = 1024
        height = 698
        save_region = 1
#39 0x00007f0398321b81 in IA__gdk_window_process_all_updates () at
gdkwindow.c:2677
        old_update_windows = (GSList *) 0x3ab01a0
        tmp_list = (GSList *) 0x3ab01a0
#40 0x00007f0398321ba9 in gdk_window_update_idle (data=0x621a) at
gdkwindow.c:2521
No locals.
#41 0x00007f0398305c6b in gdk_threads_dispatch (data=0x36151a0) at gdk.c:498
        ret = 0
#42 0x00007f0395c2cd59 in IA__g_main_context_dispatch (context=0x2376200) at
gmain.c:1814
No locals.
#43 0x00007f0395c30410 in g_main_context_iterate (context=0x2376200, block=1,
dispatch=1, 
    self=<value optimized out>) at gmain.c:2448
        max_priority = 120
        timeout = 0
        some_ready = 1
        nfds = 10
        allocated_nfds = <value optimized out>
        fds = (GPollFD *) 0x23c8500
        __PRETTY_FUNCTION__ = "g_main_context_iterate"
#44 0x00007f0395c308dd in IA__g_main_loop_run (loop=0x23e2b70) at gmain.c:2656
        self = (GThread *) 0x23460b0
        __PRETTY_FUNCTION__ = "IA__g_main_loop_run"
#45 0x00007f03986bd097 in IA__gtk_main () at gtkmain.c:1205
        tmp_list = (GList *) 0x23d4800
        functions = (GList *) 0x0
        init = (GtkInitFunction *) 0x23bbd20
        loop = (GMainLoop *) 0x23e2b70
#46 0x00000000004325e6 in main (argc=1, argv=0x7fffa2dd4aa8) at ephy-main.c:781
        option_context = <value optimized out>
        option_group = <value optimized out>
        proxy = <value optimized out>
        error = (GError *) 0x0
        user_time = 12666896

[Johan Lund]

Changed summary...