Bug 308583 – pdf/pdf-plugin-printing.html is flakily crashing, ASSERTION FAILED: m_plugInStreamLoaders.contains(&loader)

• Status: RESOLVED
• Resolution: FIXED
• Component: PDF

[Abrar Rahman Protyasha]

The test fails with this stderr output:

```
ASSERTION FAILED: m_plugInStreamLoaders.contains(&loader)
/Source/WebCore/loader/DocumentLoader.cpp(2063) : void WebCore::DocumentLoader::removePlugInStreamLoader(ResourceLoader &)
1   0x3066714fc WebCore::DocumentLoader::removePlugInStreamLoader(WebCore::ResourceLoader&)
2   0x306792e2c WebCore::NetscapePlugInStreamLoader::notifyDone()
3   0x306792f7c WebCore::NetscapePlugInStreamLoader::didCancel(WebCore::LoadWillContinueInAnotherProcess)
4   0x3067c0a88 WebCore::ResourceLoader::cancel(WebCore::ResourceError const&, WebCore::LoadWillContinueInAnotherProcess)
5   0x11f827ae8 WebKit::PluginView::Stream::cancel()
6   0x11f8289e4 WebKit::PluginView::~PluginView()
7   0x11f828bb4 WebKit::PluginView::~PluginView()
8   0x11f828be0 WebKit::PluginView::~PluginView()
9   0x3025fb0d8 WTF::RefCounted<WebCore::Widget>::deref() const
10  0x302602824 WTF::DefaultRefDerefTraits<WebCore::Widget>::derefIfNotNull(WebCore::Widget*)
11  0x306ab0ef8 WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>::~Ref()
12  0x306a5ed3c WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>::~Ref()
13  0x307c137c4 WTF::KeyValuePair<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>, WTF::WeakPtr<WebCore::LocalFrameView, WTF::SingleThreadWeakPtrImpl, WTF::RawPtrTraits<WTF::SingleThreadWeakPtrImpl>>>::~KeyValuePair()
14  0x307c13778 WTF::KeyValuePair<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>, WTF::WeakPtr<WebCore::LocalFrameView, WTF::SingleThreadWeakPtrImpl, WTF::RawPtrTraits<WTF::SingleThreadWeakPtrImpl>>>::~KeyValuePair()
15  0x307c13704 WTF::HashTable<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>, WTF::KeyValuePair<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>, WTF::WeakPtr<WebCore::LocalFrameView, WTF::SingleThreadWeakPtrImpl, WTF::RawPtrTraits<WTF::SingleThreadWeakPtrImpl>>>, WTF::KeyValuePairKeyExtractor<WTF::KeyValuePair<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>, WTF::WeakPtr<WebCore::LocalFrameView, WTF::SingleThreadWeakPtrImpl, WTF::RawPtrTraits<WTF::SingleThreadWeakPtrImpl>>>>, WTF::DefaultHash<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>>, WTF::HashMap<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>, WTF::WeakPtr<WebCore::LocalFrameView, WTF::SingleThreadWeakPtrImpl, WTF::RawPtrTraits<WTF::SingleThreadWeakPtrImpl>>, WTF::DefaultHash<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>>, WTF::HashTraits<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>>, WTF::HashTraits<WTF::WeakPtr<WebCore::LocalFrameView, WTF::SingleThreadWeakPtrImpl, WTF::RawPtrTraits<WTF::SingleThreadWeakPtrImpl>>>, WTF::HashTableTraits, (WTF::ShouldValidateKey)1, WTF::FastMalloc>::KeyValuePairTraits, WTF::HashTraits<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>>, WTF::FastMalloc>::deallocateTable(WTF::KeyValuePair<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>, WTF::WeakPtr<WebCore::LocalFrameView, WTF::SingleThreadWeakPtrImpl, WTF::RawPtrTraits<WTF::SingleThreadWeakPtrImpl>>>*)
16  0x307c13670 WTF::HashTable<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>, WTF::KeyValuePair<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>, WTF::WeakPtr<WebCore::LocalFrameView, WTF::SingleThreadWeakPtrImpl, WTF::RawPtrTraits<WTF::SingleThreadWeakPtrImpl>>>, WTF::KeyValuePairKeyExtractor<WTF::KeyValuePair<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>, WTF::WeakPtr<WebCore::LocalFrameView, WTF::SingleThreadWeakPtrImpl, WTF::RawPtrTraits<WTF::SingleThreadWeakPtrImpl>>>>, WTF::DefaultHash<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>>, WTF::HashMap<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>, WTF::WeakPtr<WebCore::LocalFrameView, WTF::SingleThreadWeakPtrImpl, WTF::RawPtrTraits<WTF::SingleThreadWeakPtrImpl>>, WTF::DefaultHash<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>>, WTF::HashTraits<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>>, WTF::HashTraits<WTF::WeakPtr<WebCore::LocalFrameView, WTF::SingleThreadWeakPtrImpl, WTF::RawPtrTraits<WTF::SingleThreadWeakPtrImpl>>>, WTF::HashTableTraits, (WTF::ShouldValidateKey)1, WTF::FastMalloc>::KeyValuePairTraits, WTF::HashTraits<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>>, WTF::FastMalloc>::~HashTable()
17  0x307c135e4 WTF::HashTable<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>, WTF::KeyValuePair<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>, WTF::WeakPtr<WebCore::LocalFrameView, WTF::SingleThreadWeakPtrImpl, WTF::RawPtrTraits<WTF::SingleThreadWeakPtrImpl>>>, WTF::KeyValuePairKeyExtractor<WTF::KeyValuePair<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>, WTF::WeakPtr<WebCore::LocalFrameView, WTF::SingleThreadWeakPtrImpl, WTF::RawPtrTraits<WTF::SingleThreadWeakPtrImpl>>>>, WTF::DefaultHash<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>>, WTF::HashMap<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>, WTF::WeakPtr<WebCore::LocalFrameView, WTF::SingleThreadWeakPtrImpl, WTF::RawPtrTraits<WTF::SingleThreadWeakPtrImpl>>, WTF::DefaultHash<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>>, WTF::HashTraits<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>>, WTF::HashTraits<WTF::WeakPtr<WebCore::LocalFrameView, WTF::SingleThreadWeakPtrImpl, WTF::RawPtrTraits<WTF::SingleThreadWeakPtrImpl>>>, WTF::HashTableTraits, (WTF::ShouldValidateKey)1, WTF::FastMalloc>::KeyValuePairTraits, WTF::HashTraits<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>>, WTF::FastMalloc>::~HashTable()
18  0x307c13880 WTF::HashMap<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>, WTF::WeakPtr<WebCore::LocalFrameView, WTF::SingleThreadWeakPtrImpl, WTF::RawPtrTraits<WTF::SingleThreadWeakPtrImpl>>, WTF::DefaultHash<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>>, WTF::HashTraits<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>>, WTF::HashTraits<WTF::WeakPtr<WebCore::LocalFrameView, WTF::SingleThreadWeakPtrImpl, WTF::RawPtrTraits<WTF::SingleThreadWeakPtrImpl>>>, WTF::HashTableTraits, (WTF::ShouldValidateKey)1, WTF::FastMalloc>::~HashMap()
19  0x307c0a728 WTF::HashMap<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>, WTF::WeakPtr<WebCore::LocalFrameView, WTF::SingleThreadWeakPtrImpl, WTF::RawPtrTraits<WTF::SingleThreadWeakPtrImpl>>, WTF::DefaultHash<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>>, WTF::HashTraits<WTF::Ref<WebCore::Widget, WTF::RawPtrTraits<WebCore::Widget>, WTF::DefaultRefDerefTraits<WebCore::Widget>>>, WTF::HashTraits<WTF::WeakPtr<WebCore::LocalFrameView, WTF::SingleThreadWeakPtrImpl, WTF::RawPtrTraits<WTF::SingleThreadWeakPtrImpl>>>, WTF::HashTableTraits, (WTF::ShouldValidateKey)1, WTF::FastMalloc>::~HashMap()
20  0x307c0a618 WebCore::WidgetHierarchyUpdatesSuspensionScope::moveWidgets()
21  0x3025f6b40 WebCore::WidgetHierarchyUpdatesSuspensionScope::~WidgetHierarchyUpdatesSuspensionScope()
22  0x3025e4178 WebCore::WidgetHierarchyUpdatesSuspensionScope::~WidgetHierarchyUpdatesSuspensionScope()
23  0x3056930d8 WebCore::Document::resolveStyle(WebCore::Document::ResolveStyleType)
24  0x305693b54 WebCore::Document::updateStyleIfNeeded()
25  0x306a68948 WebCore::LocalFrameViewLayoutContext::updateStyleForLayout()
26  0x306a67d98 WebCore::LocalFrameViewLayoutContext::performLayout(bool)
27  0x306a3b814 WebCore::LocalFrameViewLayoutContext::layout(bool)
28  0x306a38064 WebCore::LocalFrameView::forceLayout(bool)
29  0x306a37b80 WebCore::LocalFrameView::forceLayoutForPagination(WebCore::FloatSize const&, WebCore::FloatSize const&, float, WebCore::AdjustViewSize)
30  0x306a377a4 WebCore::LocalFrame::setPrinting(bool, WebCore::FloatSize, WebCore::FloatSize, float, WebCore::AdjustViewSize, WebCore::Frame::NotifyUIProcess)
31  0x306bfbbac WebCore::PrintContext::begin(float, float)
com.apple.WebKit.WebContent.Development terminated (pid 28543) for reason: crash
```

[Radar WebKit Bug Importer]

<rdar://problem/171111801>

[Abrar Rahman Protyasha]

Pull request: https://github.com/WebKit/WebKit/pull/59377

[EWS]

Committed 308242@main (8f4821e1ffd5): <https://commits.webkit.org/308242@main>

Reviewed commits have been landed. Closing PR #59377 and removing active labels.