[Webkit-unassigned] [Bug 194871] Crash in DOMWindowExtension::suspendForPageCache

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=194871

--- Comment #1 from Ryosuke Niwa <rniwa at webkit.org> ---
We're also seeing crashes in DOMWindowExtension::willDestroyGlobalObjectInCachedFrame()

e.g.
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   com.apple.WebCore                   0x00007fff52579040 WebCore::DOMWindowExtension::willDestroyGlobalObjectInCachedFrame() + 16
1   com.apple.WebCore                   0x00007fff514da36a WebCore::DOMWindow::willDestroyCachedFrame() + 234
2   com.apple.WebCore                   0x00007fff514da185 WebCore::CachedFrame::destroy() + 37
3   com.apple.WebCore                   0x00007fff522e84d4 WebCore::PageCache::prune(WebCore::PruningReason) + 100
4   com.apple.WebCore                   0x00007fff522e8458 WebCore::PageCache::pruneToSizeNow(unsigned int, WebCore::PruningReason) + 24
5   com.apple.WebKit                    0x00007fff52fc5a98 IPC::Connection::dispatchMessage(std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >) + 108
6   com.apple.WebKit                    0x00007fff52fc924b IPC::Connection::dispatchOneIncomingMessage() + 181
7   com.apple.JavaScriptCore            0x00007fff47874734 WTF::RunLoop::performWork() + 228
8   com.apple.JavaScriptCore            0x00007fff478749c2 WTF::RunLoop::performWork(void*) + 34
9   com.apple.CoreFoundation            0x00007fff443526a3 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
10  com.apple.CoreFoundation            0x00007fff44352649 __CFRunLoopDoSource0 + 108
11  com.apple.CoreFoundation            0x00007fff44335ffb __CFRunLoopDoSources0 + 195
12  com.apple.CoreFoundation            0x00007fff443355c5 __CFRunLoopRun + 1189
13  com.apple.CoreFoundation            0x00007fff44334ece CFRunLoopRunSpecific + 455
14  com.apple.Foundation                0x00007fff4664da9f -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 280
15  com.apple.Foundation                0x00007fff4664d974 -[NSRunLoop(NSRunLoop) run] + 76
16  libxpc.dylib                        0x00007fff709ec1d7 _xpc_objc_main + 552
17  libxpc.dylib                        0x00007fff709ebcd9 xpc_main + 433
18  com.apple.WebKit.WebContent         0x1013b26e2 WebKit::XPCServiceMain(int, char const**) + 547 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/WebKit2/WebKit2-7607.1.30/Shared/EntryPointUtilities/mac/XPCService/XPCServiceMain.mm:157)
19  com.apple.WebKit.WebContent         0x1013b2867 main + 9 (/BuildRoot/Library/Caches/com.apple.xbs/Sources/WebKit2/WebKit2-7607.1.30/Shared/EntryPointUtilities/mac/XPCService/XPCServiceMain.mm:165)
20  libdyld.dylib                       0x00007fff707b93ed start + 1

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