[Webkit-unassigned] [Bug 194196] REGRESSION (r239814): Most classes that user Timer have 7 bytes of padding after the Timer

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=194196

--- Comment #9 from Ryosuke Niwa <rniwa at webkit.org> ---
mac-wk2 is probably nothing to do with this patch:
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   com.apple.WebCore                   0x0000000290002243 WTFCrashWithInfo(int, char const*, char const*, int) + 19 (Assertions.h:560)
1   com.apple.WebCore                   0x00000002903de220 initAVEncoderBitRateKey() + 128 (MediaRecorderPrivateWriterCocoa.mm:55)
2   com.apple.WebCore                   0x00000002903d8166 WebCore::MediaRecorderPrivateWriter::setAudioInput() + 38 (MediaRecorderPrivateWriterCocoa.mm:179)
3   com.apple.WebCore                   0x00000002903d806e WebCore::MediaRecorderPrivateWriter::create(WebCore::MediaStreamTrackPrivate const*, WebCore::MediaStreamTrackPrivate const*) + 574 (MediaRecorderPrivateWriterCocoa.mm:107)
4   com.apple.WebCore                   0x000000029135fb93 WebCore::MediaRecorderPrivateAVFImpl::create(WebCore::MediaStreamPrivate const&) + 643 (RefPtr.h:81)
5   com.apple.WebCore                   0x00000002909596f0 WebCore::MediaRecorder::create(WebCore::Document&, WTF::Ref<WebCore::MediaStream, WTF::DumbPtrTraits<WebCore::MediaStream> >&&, WebCore::MediaRecorder::Options&&) + 128 (memory:2588)
6   com.apple.WebCore                   0x0000000290517327 WebCore::JSDOMConstructor<WebCore::JSMediaRecorder>::construct(JSC::ExecState*) + 279 (Ref.h:59)
7   com.apple.JavaScriptCore            0x0000000294e6570f JSC::LLInt::setUpCall(JSC::ExecState*, JSC::CodeSpecializationKind, JSC::JSValue, JSC::LLIntCallLinkInfo*) + 367 (NativeFunction.h:50)
8   com.apple.JavaScriptCore            0x00000002947a72e7 llint_entry + 63860 (LowLevelInterpreter.asm:981)
9   com.apple.JavaScriptCore            0x00000002947a74d8 llint_entry + 64357 (LowLevelInterpreter.asm:885)
10  com.apple.JavaScriptCore            0x00000002947a6bd9 llint_entry + 62054 (LowLevelInterpreter.asm:885)
11  com.apple.JavaScriptCore            0x00000002947a6bd9 llint_entry + 62054 (LowLevelInterpreter.asm:885)
12  com.apple.JavaScriptCore            0x00000002947977c9 vmEntryToJavaScript + 200 (LowLevelInterpreter64.asm:293)
13  com.apple.JavaScriptCore            0x0000000294d58c3f JSC::Interpreter::executeProgram(JSC::SourceCode const&, JSC::ExecState*, JSC::JSObject*) + 11295 (JITCodeInlines.h:39)
14  com.apple.JavaScriptCore            0x0000000294fdfebb JSC::evaluate(JSC::ExecState*, JSC::SourceCode const&, JSC::JSValue, WTF::NakedPtr<JSC::Exception>&) + 315 (Completion.cpp:141)

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