[Webkit-unassigned] [Bug 219055] New: [iOS] ASSERTION FAILED: Completion handler should always be called under WebKit::GPUProcess::didReceiveMessage
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Tue Nov 17 15:26:44 PST 2020
https://bugs.webkit.org/show_bug.cgi?id=219055
Bug ID: 219055
Summary: [iOS] ASSERTION FAILED: Completion handler should
always be called under
WebKit::GPUProcess::didReceiveMessage
Product: WebKit
Version: WebKit Nightly Build
Hardware: Unspecified
OS: Unspecified
Status: NEW
Severity: Normal
Priority: P2
Component: New Bugs
Assignee: webkit-unassigned at lists.webkit.org
Reporter: ryanhaddad at apple.com
I'm seeing > 10 GPUProcess crashes on iOS simulator debug bots with the assertion failure below. Some crashes are attributed to tests, others are showing up in the "Other crashes" section.
ASSERTION FAILED: Completion handler should always be called
!m_function
/Volumes/Data/slave/ios-simulator-14-debug/build/WebKitBuild/Debug-iphonesimulator/usr/local/include/wtf/CompletionHandler.h(58) : WTF::CompletionHandler<void ()>::~CompletionHandler()
1 0x123bdfb09 WTFCrash
2 0x111afac97 WTF::CompletionHandler<void ()>::~CompletionHandler()
3 0x111af8235 WTF::CompletionHandler<void ()>::~CompletionHandler()
4 0x112096bde void IPC::handleMessageAsync<Messages::GPUProcess::PrepareToSuspend, WebKit::GPUProcess, void (WebKit::GPUProcess::*)(bool, WTF::CompletionHandler<void ()>&&)>(IPC::Connection&, IPC::Decoder&, WebKit::GPUProcess*, void (WebKit::GPUProcess::*)(bool, WTF::CompletionHandler<void ()>&&))
5 0x1120963c6 WebKit::GPUProcess::didReceiveMessage(IPC::Connection&, IPC::Decoder&)
6 0x111a2fe6a IPC::Connection::dispatchMessage(IPC::Decoder&)
7 0x111a30fb0 IPC::Connection::dispatchMessage(std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >)
8 0x111a31640 IPC::Connection::dispatchOneIncomingMessage()
9 0x111a524e8 IPC::Connection::enqueueIncomingMessage(std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >)::$_8::operator()()
10 0x111a523fe WTF::Detail::CallableWrapper<IPC::Connection::enqueueIncomingMessage(std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >)::$_8, void>::call()
11 0x123c0b532 WTF::Function<void ()>::operator()() const
12 0x123c89bd5 WTF::RunLoop::performWork()
13 0x123c8e311 WTF::RunLoop::performWork(void*)
14 0x10a55037a __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__
15 0x10a550272 __CFRunLoopDoSource0
16 0x10a54f754 __CFRunLoopDoSources0
17 0x10a549f1f __CFRunLoopRun
18 0x10a5496c6 CFRunLoopRunSpecific
19 0x109f377b9 -[NSRunLoop(NSRunLoop) runMode:beforeDate:]
20 0x109f379cd -[NSRunLoop(NSRunLoop) run]
21 0x10be64176 _xpc_objc_main
22 0x10be66115 xpc_main
23 0x1123e58b2 WebKit::XPCServiceMain(int, char const**)
24 0x11390872b WKXPCServiceMain
25 0x109d68d52 main
26 0x10bb11409 start
27 0x1
https://build.webkit.org/results/Apple-iOS-14-Simulator-Debug-WK2-Tests/r269914%20(725)/results.html
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