86403 2012-05-14 14:22:57 -0700 ASSERTION FAILED: m_verticalScrollbarPainterDelegate on recent builds 2012-05-14 14:47:14 -0700 1 1 1 Unclassified WebKit Layout and Rendering 528+ (Nightly build) Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 bdakin bdakin bdakin eric webkit-bug-importer webkit.review.bot oldest_to_newest 623329 0 bdakin 2012-05-14 14:22:57 -0700 I have occasionally encountered this on recent builds: ASSERTION FAILED: m_horizontalScrollbarPainterDelegate /Volumes/Big/Source/Labyrinth/OpenSource/Source/WebCore/platform/mac/ScrollAnimatorMac.mm(873) : virtual void WebCore::ScrollAnimatorMac::willRemoveHorizontalScrollbar(WebCore::Scrollbar *) 1 0x10377770f WebCore::ScrollableArea::willRemoveHorizontalScrollbar(WebCore::Scrollbar*) 2 0x10356a4b2 WebCore::RenderLayer::destroyScrollbar(WebCore::ScrollbarOrientation) 3 0x10356a213 WebCore::RenderLayer::~RenderLayer() 4 0x10356a095 WebCore::RenderLayer::~RenderLayer() 5 0x10356a059 WebCore::RenderLayer::~RenderLayer() 6 0x10356f385 WebCore::RenderLayer::destroy(WebCore::RenderArena*) 7 0x1035022a5 WebCore::RenderBoxModelObject::destroyLayer() 8 0x1035e3bc7 WebCore::RenderObject::willBeDestroyed() 9 0x103502373 WebCore::RenderBoxModelObject::willBeDestroyed() 10 0x1034e2820 WebCore::RenderBox::willBeDestroyed() 11 0x10346e9b2 WebCore::RenderBlock::willBeDestroyed() 12 0x1035e3d4d WebCore::RenderObject::destroy() 13 0x1035e3c4d WebCore::RenderObject::destroyAndCleanupAnonymousWrappers() 14 0x10338bfb0 WebCore::Node::detach() 15 0x1025728db WebCore::ContainerNode::detach() 16 0x10291890b WebCore::Element::detach() 17 0x102574da7 WebCore::ContainerNode::detachChildren() 18 0x1025728c9 WebCore::ContainerNode::detach() 19 0x10291890b WebCore::Element::detach() 20 0x102574da7 WebCore::ContainerNode::detachChildren() 21 0x1025728c9 WebCore::ContainerNode::detach() 22 0x10291890b WebCore::Element::detach() 23 0x102574da7 WebCore::ContainerNode::detachChildren() 24 0x1025728c9 WebCore::ContainerNode::detach() 25 0x102719b0a WebCore::Document::detach() 26 0x102719e33 WebCore::Document::prepareForDestruction() 27 0x1029e0dd6 WebCore::Frame::setView(WTF::PassRefPtr<WebCore::FrameView>) 28 0x1029e37bd WebCore::Frame::createView(WebCore::IntSize const&, WebCore::Color const&, bool, WebCore::IntSize const&, bool, WebCore::ScrollbarMode, bool, WebCore::ScrollbarMode, bool) 29 0x100a5827e WebKit::WebFrameLoaderClient::transitionToCommittedForNewPage() 30 0x1029f621d WebCore::FrameLoader::transitionToCommitted(WTF::PassRefPtr<WebCore::CachedPage>) 31 0x1029f576b WebCore::FrameLoader::commitProvisionalLoad() LEAK: 1 WebPageProxy LEAK: 1 WebContext Patch forthcoming. 623330 1 webkit-bug-importer 2012-05-14 14:24:12 -0700 <rdar://problem/11448841> 623332 2 bdakin 2012-05-14 14:27:10 -0700 This appears to be a regression from http://trac.webkit.org/changeset/116476 and it occurs when you reload a page that contains a RenderLayer with a custom scrollbar. I can't seem to get it to happen in DRT though. 623333 3 webkit-bug-importer 2012-05-14 14:27:51 -0700 <rdar://problem/11448891> 623338 4 141791 bdakin 2012-05-14 14:30:04 -0700 Created attachment 141791 Patch 623357 5 bdakin 2012-05-14 14:47:14 -0700 Thanks Simon! http://trac.webkit.org/changeset/117004 141791 2012-05-14 14:30:04 -0700 2012-05-14 14:44:20 -0700 Patch for-review.txt text/plain 1915 bdakin SW5kZXg6IFNvdXJjZS9XZWJDb3JlL0NoYW5nZUxvZwo9PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09Ci0tLSBTb3VyY2UvV2Vi Q29yZS9DaGFuZ2VMb2cJKHJldmlzaW9uIDExNzAwMykKKysrIFNvdXJjZS9XZWJDb3JlL0NoYW5n ZUxvZwkod29ya2luZyBjb3B5KQpAQCAtMSwzICsxLDE4IEBACisyMDEyLTA1LTE0ICBCZXRoIERh a2luICA8YmRha2luQGFwcGxlLmNvbT4KKworICAgICAgICBodHRwczovL2J1Z3Mud2Via2l0Lm9y Zy9zaG93X2J1Zy5jZ2k/aWQ9ODY0MDMKKyAgICAgICAgQVNTRVJUSU9OIEZBSUxFRDogbV92ZXJ0 aWNhbFNjcm9sbGJhclBhaW50ZXJEZWxlZ2F0ZSBvbiByZWNlbnQgYnVpbGRzCisgICAgICAgIC1h bmQgY29ycmVzcG9uZGluZy0KKyAgICAgICAgPHJkYXI6Ly9wcm9ibGVtLzExNDQ4ODQxPgorCisg ICAgICAgIFJldmlld2VkIGJ5IE5PQk9EWSAoT09QUyEpLgorCisgICAgICAgIGh0dHA6Ly90cmFj LndlYmtpdC5vcmcvY2hhbmdlc2V0LzExNjQ3NiBhY2NpZGVudGFsbHkgc3RhcnRlZCBjYWxsaW5n IAorICAgICAgICB0aGVzZSBmdW5jdGlvbnMgZm9yIGN1c3RvbSBzY3JvbGxiYXJzLiBUaGlzIGNo YW5nZSByZXBsYWNlcyB0aGF0IAorICAgICAgICBndWFyZC4KKyAgICAgICAgKiByZW5kZXJpbmcv UmVuZGVyTGF5ZXIuY3BwOgorICAgICAgICAoV2ViQ29yZTo6UmVuZGVyTGF5ZXI6OmRlc3Ryb3lT Y3JvbGxiYXIpOgorCiAyMDEyLTA1LTE0ICBTaW1vbiBGcmFzZXIgIDxzaW1vbi5mcmFzZXJAYXBw bGUuY29tPgogCiAgICAgICAgIFJlbW92ZSByZWR1bmRhbnQgcGl4ZWwgc25hcHBpbmcgaW4gY2Fs Y3VsYXRlQ29tcG9zaXRlZEJvdW5kcygpCkluZGV4OiBTb3VyY2UvV2ViQ29yZS9yZW5kZXJpbmcv UmVuZGVyTGF5ZXIuY3BwCj09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT0KLS0tIFNvdXJjZS9XZWJDb3JlL3JlbmRlcmluZy9S ZW5kZXJMYXllci5jcHAJKHJldmlzaW9uIDExNjk3MykKKysrIFNvdXJjZS9XZWJDb3JlL3JlbmRl cmluZy9SZW5kZXJMYXllci5jcHAJKHdvcmtpbmcgY29weSkKQEAgLTIyMTEsMTYgKzIyMTEsMTkg QEAgUGFzc1JlZlB0cjxTY3JvbGxiYXI+IFJlbmRlckxheWVyOjpjcmVhdAogdm9pZCBSZW5kZXJM YXllcjo6ZGVzdHJveVNjcm9sbGJhcihTY3JvbGxiYXJPcmllbnRhdGlvbiBvcmllbnRhdGlvbikK IHsKICAgICBSZWZQdHI8U2Nyb2xsYmFyPiYgc2Nyb2xsYmFyID0gb3JpZW50YXRpb24gPT0gSG9y aXpvbnRhbFNjcm9sbGJhciA/IG1faEJhciA6IG1fdkJhcjsKLSAgICBpZiAoc2Nyb2xsYmFyKSB7 CisgICAgaWYgKCFzY3JvbGxiYXIpCisgICAgICAgIHJldHVybjsKKworICAgIGlmICghc2Nyb2xs YmFyLT5pc0N1c3RvbVNjcm9sbGJhcigpKSB7CiAgICAgICAgIGlmIChvcmllbnRhdGlvbiA9PSBI b3Jpem9udGFsU2Nyb2xsYmFyKQogICAgICAgICAgICAgd2lsbFJlbW92ZUhvcml6b250YWxTY3Jv bGxiYXIoc2Nyb2xsYmFyLmdldCgpKTsKICAgICAgICAgZWxzZQogICAgICAgICAgICAgd2lsbFJl bW92ZVZlcnRpY2FsU2Nyb2xsYmFyKHNjcm9sbGJhci5nZXQoKSk7Ci0KLSAgICAgICAgc2Nyb2xs YmFyLT5yZW1vdmVGcm9tUGFyZW50KCk7Ci0gICAgICAgIHNjcm9sbGJhci0+ZGlzY29ubmVjdEZy b21TY3JvbGxhYmxlQXJlYSgpOwotICAgICAgICBzY3JvbGxiYXIgPSAwOwogICAgIH0KKworICAg IHNjcm9sbGJhci0+cmVtb3ZlRnJvbVBhcmVudCgpOworICAgIHNjcm9sbGJhci0+ZGlzY29ubmVj dEZyb21TY3JvbGxhYmxlQXJlYSgpOworICAgIHNjcm9sbGJhciA9IDA7CiB9CiAKIGJvb2wgUmVu ZGVyTGF5ZXI6OnNjcm9sbHNPdmVyZmxvdygpIGNvbnN0Cg==