WebKit::ChildProcessProxy::sendMessage crash 崩溃

[yuchuanfeng]

crash堆栈日志如下：

0	WebKit	0x00000001ea9a9230 WebKit::ChildProcessProxy::sendMessage(std::__1::unique_ptr<IPC::Encoder, std::__1::default_deleteIPC::Encoder >, WTF::OptionSetIPC::SendOption) + 24
1	WebKit	0x00000001eaaee84c bool WebKit::ChildProcessProxy::sendMessages::LegacyCustomProtocolManager::DidFailWithError(Messages::LegacyCustomProtocolManager::DidFailWithError&&, unsigned long long, WTF::OptionSetIPC::SendOption) + 128
2	WebKit	0x00000001eaaee7c0 WebKit::LegacyCustomProtocolManagerProxy::didFailWithError(unsigned long long, WebCore::ResourceError const&) + 40
3	WebKit	0x00000001ea84c290 -[WKCustomProtocolLoader connection:didFailWithError:] + 72
4	CFNetwork	0x00000001db7ded04 ___65-[NSURLConnectionInternal _withConnectionAndDelegate:onlyActive:]_block_invoke + 68
5	CFNetwork	0x00000001db566760 -[NSURLConnectionInternalConnection invokeForDelegate:] + 164
6	CFNetwork	0x00000001db55db44 -[NSURLConnectionInternal _withConnectionAndDelegate:onlyActive:] + 212
7	CFNetwork	0x00000001db56281c -[NSURLConnectionInternal _withConnectionAndDelegate:] + 60
8	CFNetwork	0x00000001db79d590 _NSURLConnectionDidFail(_CFURLConnection*, __CFError*, void const*) + 96
9	CFNetwork	0x00000001db6e7a3c ____ZN27URLConnectionClient_Classic17_delegate_didFailEP9__CFErrorU13block_pointerFvvE_block_invoke + 124
10	CFNetwork	0x00000001db6e528c ____ZN27URLConnectionClient_Classic18_withDelegateAsyncEPKcU13block_pointerFvP16_CFURLConnectionPK33CFURLConnectionClientCurrent_VMaxE_block_invoke_2 + 128
11	libdispatch.dylib	0x00000001da9c1884 __dispatch_client_callout + 20
12	libdispatch.dylib	0x00000001da9c4e5c __dispatch_block_invoke_direct + 252
13	CFNetwork	0x00000001db7bc5ec RunloopBlockContext::_invoke_block(void const*, void*) + 44
14	CoreFoundation	0x00000001daee1750 _CFArrayApplyFunction + 84
15	CFNetwork	0x00000001db7bc4b0 RunloopBlockContext::perform() + 132
16	CFNetwork	0x00000001db7bd96c MultiplexerSource::perform() + 376
17	CFNetwork	0x00000001db7bd618 MultiplexerSource::_perform(void*) + 64
18	CoreFoundation	0x00000001daf42444 _CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION + 28
19	CoreFoundation	0x00000001daf423c0 ___CFRunLoopDoSource0 + 92
20	CoreFoundation	0x00000001daf41ccc ___CFRunLoopDoSources0 + 260
21	CoreFoundation	0x00000001daf3c950 ___CFRunLoopRun + 988
22	CoreFoundation	0x00000001daf3c254 _CFRunLoopRunSpecific + 452
23	GraphicsServices	0x00000001dd17bd8c _GSEventRunModal + 108
24	UIKitCore	0x00000002082844c0 _UIApplicationMain + 216
25	WKMainProject	0x0000000104913284 main (main.m:14)
26	libdyld.dylib	0x00000001da9f8fd8 _start + 4

我们项目中也使用wk_registerScheme注册 scheme，且注册有多个，有谁遇到过吗？

[yeatse]

看下是不是这个原因
#2

[yuchuanfeng]

恩，那个回答我之前也看过，把WKWebView 所使用的 WKProcessPool 设置成单例变量还是会有这个 crash，应该是其它原因吧

[Elliotsomething]

确实最终都是挂在进程通信sendMessages，之前苹果在上层修过一个bug√=https://trac.webkit.org/changeset/244246/webkit，
但是还是存在crash，有老哥知道怎么复现吗

[wangjunhua1]

我也遇到的相同的crash 有解决方案吗

[yuchuanfeng]

@wangjunhua1 你能复现这个 crash 吗？