118052 2013-06-26 01:59:09 -0700 [WK2][GTK] SIGSEV in webkitWebViewBaseSizeAllocate 2013-07-15 01:14:08 -0700 1 1 1 Unclassified WebKit WebKitGTK 528+ (Nightly build) Unspecified Unspecified RESOLVED FIXED P2 Normal --- 1 svillar webkit-unassigned alex berto cgarcia commit-queue gustavo mrobinson svillar xan.lopez oldest_to_newest 903611 0 svillar 2013-06-26 01:59:09 -0700 Got this when browsing: Program received signal SIGSEGV, Segmentation fault. 0x00007ffff20c3764 in WebCore::IntSize::isEmpty () from /opt/gnome3/lib64/libwebkit2gtk-3.0.so.25 (gdb) bt #0 0x00007ffff20c3764 in WebCore::IntSize::isEmpty () from /opt/gnome3/lib64/libwebkit2gtk-3.0.so.25 #1 0x00007ffff2185b74 in webkitWebViewBaseSizeAllocate () from /opt/gnome3/lib64/libwebkit2gtk-3.0.so.25 #2 0x00007fffed6bd21b in g_cclosure_marshal_VOID__BOXEDv (closure=0x708860, return_value=0x0, instance=0x167a9a0, args=0x7fffffff9848, marshal_data=0x7ffff2185a99 <webkitWebViewBaseSizeAllocate()>, n_params=1, param_types=0x6f4350) at gmarshal.c:1160 #3 0x00007fffed6b8f8a in g_type_class_meta_marshalv (closure=0x708860, return_value=0x0, instance=0x167a9a0, args=0x7fffffff9848, marshal_data=0xd8, n_params=1, param_types=0x6f4350) at gclosure.c:997 #4 0x00007fffed6b8b4d in _g_closure_invoke_va (closure=0x708860, return_value=0x0, instance=0x167a9a0, args=0x7fffffff9848, n_params=1, param_types=0x6f4350) at gclosure.c:840 #5 0x00007fffed6d4feb in g_signal_emit_valist (instance=0x167a9a0, signal_id=10, detail=0, var_args=0x7fffffff9848) at gsignal.c:3234 #6 0x00007fffed6d61b4 in g_signal_emit (instance=0x167a9a0, signal_id=10, detail=0) at gsignal.c:3382 #7 0x00007fffef81277b in gtk_widget_size_allocate_with_baseline (widget=0x167a9a0, allocation=0x7fffffff9ad0, baseline=-1) at gtkwidget.c:5516 #8 0x00007fffef8129b3 in gtk_widget_size_allocate (widget=0x167a9a0, allocation=0x7fffffff9ad0) at gtkwidget.c:5583 #9 0x00007fffef505fb1 in gtk_bin_size_allocate (widget=0x16eb100, allocation=0x7fffffffa110) at gtkbin.c:321 #10 0x00007fffef6a075f in gtk_overlay_size_allocate (widget=0x16eb100, allocation=0x7fffffffa110) at gtkoverlay.c:358 #11 0x00007fffed6bd21b in g_cclosure_marshal_VOID__BOXEDv (closure=0x708860, return_value=0x0, instance=0x16eb100, args=0x7fffffff9f88, marshal_data=0x7fffef6a06f7 <gtk_overlay_size_allocate>, n_params=1, param_types=0x6f4350) at gmarshal.c:1160 #12 0x00007fffed6b8f8a in g_type_class_meta_marshalv (closure=0x708860, return_value=0x0, instance=0x16eb100, args=0x7fffffff9f88, marshal_data=0xd8, n_params=1, param_types=0x6f4350) at gclosure.c:997 #13 0x00007fffed6b8b4d in _g_closure_invoke_va (closure=0x708860, return_value=0x0, instance=0x16eb100, args=0x7fffffff9f88, n_params=1, param_types=0x6f4350) at gclosure.c:840 #14 0x00007fffed6d4feb in g_signal_emit_valist (instance=0x16eb100, signal_id=10, detail=0, var_args=0x7fffffff9f88) at gsignal.c:3234 #15 0x00007fffed6d61b4 in g_signal_emit (instance=0x16eb100, signal_id=10, detail=0) at gsignal.c:3382 #16 0x00007fffef81277b in gtk_widget_size_allocate_with_baseline (widget=0x16eb100, allocation=0x7fffffffa240, baseline=-1) at gtkwidget.c:5516 #17 0x00007fffef8129b3 in gtk_widget_size_allocate (widget=0x16eb100, allocation=0x7fffffffa240) at gtkwidget.c:5583 #18 0x00007fffef6a4b1f in gtk_paned_child_allocate (child=0x16eb100, child_window=0x1716640, window_allocation=0x7fffffffa250, child_allocation=0x7fffffffa240) at gtkpaned.c:1140 #19 0x00007fffef6a53cf in gtk_paned_size_allocate (widget=0x15d4a20, allocation=0x7fffffffa8e0) at gtkpaned.c:1355 #20 0x00007fffed6bd21b in g_cclosure_marshal_VOID__BOXEDv (closure=0x708860, return_value=0x0, instance=0x15d4a20, args=0x7fffffffa758, marshal_data=0x7fffef6a4b21 <gtk_paned_size_allocate>, n_params=1, param_types=0x6f4350) at gmarshal.c:1160 #21 0x00007fffed6b8f8a in g_type_class_meta_marshalv (closure=0x708860, return_value=0x0, instance=0x15d4a20, args=0x7fffffffa758, marshal_data=0xd8, n_params=1, param_types=0x6f4350) at gclosure.c:997 #22 0x00007fffed6b8b4d in _g_closure_invoke_va (closure=0x708860, return_value=0x0, instance=0x15d4a20, args=0x7fffffffa758, n_params=1, param_types=0x6f4350) at gclosure.c:840 #23 0x00007fffed6d4feb in g_signal_emit_valist (instance=0x15d4a20, signal_id=10, detail=0, var_args=0x7fffffffa758) at gsignal.c:3234 #24 0x00007fffed6d61b4 in g_signal_emit (instance=0x15d4a20, signal_id=10, detail=0) at gsignal.c:3382 #25 0x00007fffef81277b in gtk_widget_size_allocate_with_baseline (widget=0x15d4a20, allocation=0x7fffffffaa30, baseline=-1) at gtkwidget.c:5516 #26 0x00007fffef50c866 in gtk_box_size_allocate (widget=0x1541340, allocation=0x7fffffffb0c0) at gtkbox.c:774 #27 0x00007fffed6bd21b in g_cclosure_marshal_VOID__BOXEDv (closure=0x708860, return_value=0x0, instance=0x1541340, args=0x7fffffffaf38, marshal_data=0x7fffef50bb67 <gtk_box_size_allocate>, n_params=1, param_types=0x6f4350) at gmarshal.c:1160 #28 0x00007fffed6b8f8a in g_type_class_meta_marshalv (closure=0x708860, return_value=0x0, instance=0x1541340, args=0x7fffffffaf38, marshal_data=0xd8, n_params=1, param_types=0x6f4350) at gclosure.c:997 #29 0x00007fffed6b8b4d in _g_closure_invoke_va (closure=0x708860, return_value=0x0, instance=0x1541340, args=0x7fffffffaf38, n_params=1, param_types=0x6f4350) at gclosure.c:840 #30 0x00007fffed6d4feb in g_signal_emit_valist (instance=0x1541340, signal_id=10, detail=0, var_args=0x7fffffffaf38) at gsignal.c:3234 #31 0x00007fffed6d61b4 in g_signal_emit (instance=0x1541340, signal_id=10, detail=0) at gsignal.c:3382 #32 0x00007fffef81277b in gtk_widget_size_allocate_with_baseline (widget=0x1541340, allocation=0x7fffffffb1f0, baseline=-1) at gtkwidget.c:5516 #33 0x00007fffef8129b3 in gtk_widget_size_allocate (widget=0x1541340, allocation=0x7fffffffb1f0) at gtkwidget.c:5583 #34 0x00007fffef68f01a in gtk_notebook_size_allocate (widget=0x143b1d0, allocation=0x7fffffffb830) at gtknotebook.c:2562 #35 0x00007fffed6bd21b in g_cclosure_marshal_VOID__BOXEDv (closure=0x708860, return_value=0x0, instance=0x143b1d0, args=0x7fffffffb6a8, marshal_data=0x7fffef68ea3d <gtk_notebook_size_allocate>, n_params=1, param_types=0x6f4350) at gmarshal.c:1160 #36 0x00007fffed6b8f8a in g_type_class_meta_marshalv (closure=0x708860, return_value=0x0, instance=0x143b1d0, args=0x7fffffffb6a8, marshal_data=0xd8, n_params=1, param_types=0x6f4350) at gclosure.c:997 #37 0x00007fffed6b8b4d in _g_closure_invoke_va (closure=0x708860, return_value=0x0, instance=0x143b1d0, args=0x7fffffffb6a8, n_params=1, param_types=0x6f4350) at gclosure.c:840 #38 0x00007fffed6d4feb in g_signal_emit_valist (instance=0x143b1d0, signal_id=10, detail=0, var_args=0x7fffffffb6a8) at gsignal.c:3234 #39 0x00007fffed6d61b4 in g_signal_emit (instance=0x143b1d0, signal_id=10, detail=0) at gsignal.c:3382 #40 0x00007fffef81277b in gtk_widget_size_allocate_with_baseline (widget=0x143b1d0, allocation=0x7fffffffb980, baseline=-1) at gtkwidget.c:5516 #41 0x00007fffef50c866 in gtk_box_size_allocate (widget=0x141f0f0, allocation=0x7fffffffc010) at gtkbox.c:774 #42 0x00007fffed6bd21b in g_cclosure_marshal_VOID__BOXEDv (closure=0x708860, return_value=0x0, instance=0x141f0f0, args=0x7fffffffbe88, marshal_data=0x7fffef50bb67 <gtk_box_size_allocate>, n_params=1, param_types=0x6f4350) at gmarshal.c:1160 #43 0x00007fffed6b8f8a in g_type_class_meta_marshalv (closure=0x708860, return_value=0x0, instance=0x141f0f0, args=0x7fffffffbe88, marshal_data=0xd8, n_params=1, param_types=0x6f4350) at gclosure.c:997 #44 0x00007fffed6b8b4d in _g_closure_invoke_va (closure=0x708860, return_value=0x0, instance=0x141f0f0, args=0x7fffffffbe88, n_params=1, param_types=0x6f4350) at gclosure.c:840 #45 0x00007fffed6d4feb in g_signal_emit_valist (instance=0x141f0f0, signal_id=10, detail=0, var_args=0x7fffffffbe88) at gsignal.c:3234 #46 0x00007fffed6d61b4 in g_signal_emit (instance=0x141f0f0, signal_id=10, detail=0) at gsignal.c:3382 #47 0x00007fffef81277b in gtk_widget_size_allocate_with_baseline (widget=0x141f0f0, allocation=0x7fffffffc110, baseline=-1) at gtkwidget.c:5516 #48 0x00007fffef8129b3 in gtk_widget_size_allocate (widget=0x141f0f0, allocation=0x7fffffffc110) at gtkwidget.c:5583 #49 0x00007fffef836481 in gtk_window_size_allocate (widget=0x1412430, allocation=0x7fffffffc8b0) at gtkwindow.c:6472 #50 0x00007fffef4fb482 in gtk_application_window_real_size_allocate (widget=0x1412430, allocation=0x7fffffffc8b0) at gtkapplicationwindow.c:738 #51 0x00007fffed6bd0f5 in g_cclosure_marshal_VOID__BOXED (closure=0x708860, return_value=0x0, n_param_values=2, param_values=0x7fffffffc460, invocation_hint=0x7fffffffc390, marshal_data=0x7fffef4fb2bd <gtk_application_window_real_size_allocate>) at gmarshal.c:1120 #52 0x00007fffed6b8f05 in g_type_class_meta_marshal (closure=0x708860, return_value=0x0, n_param_values=2, param_values=0x7fffffffc460, invocation_hint=0x7fffffffc390, marshal_data=0xd8) at gclosure.c:970 #53 0x00007fffed6b88b5 in g_closure_invoke (closure=0x708860, return_value=0x0, n_param_values=2, param_values=0x7fffffffc460, invocation_hint=0x7fffffffc390) at gclosure.c:777 #54 0x00007fffed6d6718 in signal_emit_unlocked_R (node=0x6f4370, detail=0, instance=0x1412430, emission_return=0x0, instance_and_params=0x7fffffffc460) at gsignal.c:3512 #55 0x00007fffed6d5c6c in g_signal_emit_valist (instance=0x1412430, signal_id=10, detail=0, var_args=0x7fffffffc728) at gsignal.c:3326 #56 0x00007fffed6d61b4 in g_signal_emit (instance=0x1412430, signal_id=10, detail=0) at gsignal.c:3382 #57 0x00007fffef81277b in gtk_widget_size_allocate_with_baseline (widget=0x1412430, allocation=0x7fffffffca70, baseline=-1) at gtkwidget.c:5516 #58 0x00007fffef8129b3 in gtk_widget_size_allocate (widget=0x1412430, allocation=0x7fffffffca70) at gtkwidget.c:5583 #59 0x00007fffef83a13e in gtk_window_move_resize (window=0x1412430) at gtkwindow.c:8510 #60 0x00007fffef837da6 in gtk_window_check_resize (container=0x1412430) at gtkwindow.c:7282 #61 0x00007fffed6bb9c3 in g_cclosure_marshal_VOID__VOIDv (closure=0x707e00, return_value=0x0, instance=0x1412430, args=0x7fffffffcf08, marshal_data=0x7fffef837d09 <gtk_window_check_resize>, n_params=0, param_types=0x0) at gmarshal.c:115 #62 0x00007fffed6b8f8a in g_type_class_meta_marshalv (closure=0x707e00, return_value=0x0, instance=0x1412430, args=0x7fffffffcf08, marshal_data=0x348, n_params=0, param_types=0x0) at gclosure.c:997 #63 0x00007fffed6b8b4d in _g_closure_invoke_va (closure=0x707e00, return_value=0x0, instance=0x1412430, args=0x7fffffffcf08, n_params=0, param_types=0x0) at gclosure.c:840 #64 0x00007fffed6d4feb in g_signal_emit_valist (instance=0x1412430, signal_id=74, detail=0, var_args=0x7fffffffcf08) at gsignal.c:3234 #65 0x00007fffed6d61b4 in g_signal_emit (instance=0x1412430, signal_id=74, detail=0) at gsignal.c:3382 #66 0x00007fffef5710e4 in gtk_container_check_resize (container=0x1412430) at gtkcontainer.c:1844 #67 0x00007fffef570ab3 in gtk_container_idle_sizer (clock=0x751540, container=0x1412430) at gtkcontainer.c:1680 #68 0x00007fffed6bb9c3 in g_cclosure_marshal_VOID__VOIDv (closure=0x18ff090, return_value=0x0, instance=0x751540, args=0x7fffffffd408, marshal_data=0x0, n_params=0, param_types=0x0) at gmarshal.c:115 #69 0x00007fffed6b8b4d in _g_closure_invoke_va (closure=0x18ff090, return_value=0x0, instance=0x751540, args=0x7fffffffd408, n_params=0, param_types=0x0) at gclosure.c:840 #70 0x00007fffed6d4feb in g_signal_emit_valist (instance=0x751540, signal_id=139, detail=0, var_args=0x7fffffffd408) at gsignal.c:3234 #71 0x00007fffed6d6320 in g_signal_emit_by_name (instance=0x751540, detailed_signal=0x7fffeef66613 "layout") at gsignal.c:3422 #72 0x00007fffeeef8930 in gdk_frame_clock_paint_idle (data=0x751540) at gdkframeclockidle.c:408 #73 0x00007fffeeee60a9 in gdk_threads_dispatch (data=0x1aeb740) at gdk.c:804 #74 0x00007fffed3adba6 in g_timeout_dispatch (source=0x1ae9950, callback=0x7fffeeee6064 <gdk_threads_dispatch>, user_data=0x1aeb740) at gmain.c:4443 #75 0x00007fffed3abe49 in g_main_dispatch (context=0x730f80) at gmain.c:3058 #76 0x00007fffed3acbae in g_main_context_dispatch (context=0x730f80) at gmain.c:3634 #77 0x00007fffed3acd9e in g_main_context_iterate (context=0x730f80, block=1, dispatch=1, self=0x778d80) at gmain.c:3705 #78 0x00007fffed3ace62 in g_main_context_iteration (context=0x730f80, may_block=1) at gmain.c:3766 #79 0x00007fffedbd46ec in g_application_run (application=0x8f2270, argc=1, argv=0x7fffffffd938) at gapplication.c:1638 #80 0x00000000004342c2 in main (argc=1, argv=0x7fffffffd938) at ephy-main.c:489 904109 1 berto 2013-06-27 01:58:15 -0700 I think the problem is that pageProxy->drawingArea() can be null and we're not checking for that. We used to do that check but that changed in r106816: http://trac.webkit.org/changeset/106816/trunk/Source/WebKit2/UIProcess/API/gtk/WebKitWebViewBase.cpp Martin wrote that patch, did you overlook that or is there something else that I'm missing? 904133 2 mrobinson 2013-06-27 02:55:36 -0700 (In reply to comment #1) > Martin wrote that patch, did you overlook that or is there something else that I'm missing? The check is still in resizeWebKitWebViewBaseFromAllocation, so probably an oversight on my part. 904140 3 berto 2013-06-27 03:15:10 -0700 (In reply to comment #2) > The check is still in resizeWebKitWebViewBaseFromAllocation, so > probably an oversight on my part. I guess we can get back to the old code here? if (!priv->pageProxy->drawingArea()) return; What's the purpose of the check that we have now? 904611 4 mrobinson 2013-06-28 07:10:14 -0700 (In reply to comment #3) > (In reply to comment #2) > > The check is still in resizeWebKitWebViewBaseFromAllocation, so > > probably an oversight on my part. > > I guess we can get back to the old code here? > > if (!priv->pageProxy->drawingArea()) > return; Seems reasonable? > What's the purpose of the check that we have now? Which check? 904616 5 berto 2013-06-28 07:33:14 -0700 (In reply to comment #4) > > I guess we can get back to the old code here? > > > > if (!priv->pageProxy->drawingArea()) > > return; > > Seems reasonable? I'm actually trying to figure out why that condition could be false, the drawing area is created with the web view. > > What's the purpose of the check that we have now? > > Which check? The size().isEmpty() bit in (sizeChanged && !gtk_widget_get_mapped(widget) && !webViewBase->priv->pageProxy->drawingArea()->size().isEmpty()) 904987 6 205799 berto 2013-07-01 04:56:58 -0700 Created attachment 205799 Patch I actually think that the problem is that !drawingArea()->size().isEmpty() test. Why do we need to check that at all? If the point is to know if the web view must be resized when the widget is mapped then I don't see the purpose of this. About why the SIGSEGV is happening: the drawingArea can be null if the web process crashes. A check was added some time ago (bug 62541) in order to prevent that but it was later moved to resizeWebKitWebViewBaseFromAllocation() (bug 77743). 904988 7 commit-queue 2013-07-01 04:58:57 -0700 Thanks for the patch. If this patch contains new public API please make sure it follows the guidelines for new WebKit2 GTK+ API. See http://trac.webkit.org/wiki/WebKitGTK/AddingNewWebKit2API 908320 8 205799 cgarcia 2013-07-15 00:52:23 -0700 Comment on attachment 205799 Patch Makes sense, thanks! 908327 9 205799 commit-queue 2013-07-15 01:14:06 -0700 Comment on attachment 205799 Patch Clearing flags on attachment: 205799 Committed r152626: <http://trac.webkit.org/changeset/152626> 908328 10 commit-queue 2013-07-15 01:14:08 -0700 All reviewed patches have been landed. Closing bug. 205799 2013-07-01 04:56:58 -0700 2013-07-15 01:14:04 -0700 Patch 118052.diff text/plain 1822 berto ZGlmZiAtLWdpdCBhL1NvdXJjZS9XZWJLaXQyL0NoYW5nZUxvZyBiL1NvdXJjZS9XZWJLaXQyL0No YW5nZUxvZwppbmRleCA1YjZhNjc5Li5kMDM4YTE5IDEwMDY0NAotLS0gYS9Tb3VyY2UvV2ViS2l0 Mi9DaGFuZ2VMb2cKKysrIGIvU291cmNlL1dlYktpdDIvQ2hhbmdlTG9nCkBAIC0xLDMgKzEsMjMg QEAKKzIwMTMtMDctMDEgIEFsYmVydG8gR2FyY2lhICA8YmVydG9AaWdhbGlhLmNvbT4KKworICAg ICAgICBbV0syXVtHVEtdIFNJR1NFViBpbiB3ZWJraXRXZWJWaWV3QmFzZVNpemVBbGxvY2F0ZQor ICAgICAgICBodHRwczovL2J1Z3Mud2Via2l0Lm9yZy9zaG93X2J1Zy5jZ2k/aWQ9MTE4MDUyCisK KyAgICAgICAgUmV2aWV3ZWQgYnkgTk9CT0RZIChPT1BTISkuCisKKyAgICAgICAgV2UgZG9uJ3Qg bmVlZCB0byBjaGVjayB3aGV0aGVyIHRoZSBkcmF3aW5nIGFyZWEgaXMgZW1wdHkgb3Igbm90IGlu CisgICAgICAgIG9yZGVyIHRvIHNldCBuZWVkc1Jlc2l6ZU9uTWFwLgorCisgICAgICAgIEl0IGNh biBhbHNvIGhhcHBlbiB0aGF0IHRoZSBkcmF3aW5nIGFyZWEgcG9pbnRlciBpcyBudWxsIChpZgor ICAgICAgICBlLmcuIHRoZSB3ZWIgcHJvY2VzcyBjcmFzaGVzKSwgd2hpY2ggaXMgdGhlIHJlYXNv biBmb3IgdGhpcworICAgICAgICBTSUdTRUdWLgorCisgICAgICAgIEEgdGVzdCB0byBwcmV2ZW50 IHRoaXMgd2FzIGFkZGVkIGluIHI4ODY0NiBidXQgd2FzIGxhdGVyIG1vdmVkIHRvCisgICAgICAg IHJlc2l6ZVdlYktpdFdlYlZpZXdCYXNlRnJvbUFsbG9jYXRpb24oKS4KKworICAgICAgICAqIFVJ UHJvY2Vzcy9BUEkvZ3RrL1dlYktpdFdlYlZpZXdCYXNlLmNwcDoKKyAgICAgICAgKHdlYmtpdFdl YlZpZXdCYXNlU2l6ZUFsbG9jYXRlKToKKwogMjAxMy0wNi0yOCAgQW5kcmVzIEdvbWV6ICA8YWdv bWV6QGlnYWxpYS5jb20+CiAKICAgICAgICAgW0dUS10gTWluaUJyb3dzZXIgZG9lc24ndCBzb2x2 ZSB0aGUgc2F2aW5nIGxvY2F0aW9uIHdoZW4gdGhlcmUgYXJlIG5vIFhERyBzZXR0aW5ncwpkaWZm IC0tZ2l0IGEvU291cmNlL1dlYktpdDIvVUlQcm9jZXNzL0FQSS9ndGsvV2ViS2l0V2ViVmlld0Jh c2UuY3BwIGIvU291cmNlL1dlYktpdDIvVUlQcm9jZXNzL0FQSS9ndGsvV2ViS2l0V2ViVmlld0Jh c2UuY3BwCmluZGV4IDY3ZGQzZTEuLmE0MTQ5MjAgMTAwNjQ0Ci0tLSBhL1NvdXJjZS9XZWJLaXQy L1VJUHJvY2Vzcy9BUEkvZ3RrL1dlYktpdFdlYlZpZXdCYXNlLmNwcAorKysgYi9Tb3VyY2UvV2Vi S2l0Mi9VSVByb2Nlc3MvQVBJL2d0ay9XZWJLaXRXZWJWaWV3QmFzZS5jcHAKQEAgLTUwNyw3ICs1 MDcsNyBAQCBzdGF0aWMgdm9pZCB3ZWJraXRXZWJWaWV3QmFzZVNpemVBbGxvY2F0ZShHdGtXaWRn ZXQqIHdpZGdldCwgR3RrQWxsb2NhdGlvbiogYWxsbwogICAgIEdUS19XSURHRVRfQ0xBU1Mod2Vi a2l0X3dlYl92aWV3X2Jhc2VfcGFyZW50X2NsYXNzKS0+c2l6ZV9hbGxvY2F0ZSh3aWRnZXQsIGFs bG9jYXRpb24pOwogCiAgICAgV2ViS2l0V2ViVmlld0Jhc2UqIHdlYlZpZXdCYXNlID0gV0VCS0lU X1dFQl9WSUVXX0JBU0Uod2lkZ2V0KTsKLSAgICBpZiAoc2l6ZUNoYW5nZWQgJiYgIWd0a193aWRn ZXRfZ2V0X21hcHBlZCh3aWRnZXQpICYmICF3ZWJWaWV3QmFzZS0+cHJpdi0+cGFnZVByb3h5LT5k cmF3aW5nQXJlYSgpLT5zaXplKCkuaXNFbXB0eSgpKSB7CisgICAgaWYgKHNpemVDaGFuZ2VkICYm ICFndGtfd2lkZ2V0X2dldF9tYXBwZWQod2lkZ2V0KSkgewogICAgICAgICB3ZWJWaWV3QmFzZS0+ cHJpdi0+bmVlZHNSZXNpemVPbk1hcCA9IHRydWU7CiAgICAgICAgIHJldHVybjsKICAgICB9Cg==