Question

我在模拟器上测试我的应用时得到了这条消息：

来自调试器的消息：对k数据包有意外响应：确定

这是什么意思，是我的应用程序在任何危险中？

使用Xcode 6.4＆amp; 7.2

Answer 1

如果查看llvm源代码中的文件ProcessGDBRemote.cpp，您会看到当Xcode的调试器进程发出意外响应时会发生这种情况，在这种情况下，如果数据包不是{{1} }或'W'字符：

'X'

在这种情况下，调试器正在发送字符串Error ProcessGDBRemote::DoDestroy () { // ... if (m_gdb_comm.SendPacketAndWaitForResponse("k", 1, response, send_async) == GDBRemoteCommunication::PacketResult::Success) { char packet_cmd = response.GetChar(0); if (packet_cmd == 'W' || packet_cmd == 'X') { // ... } else { if (log) log->Printf ("ProcessGDBRemote::DoDestroy - got unexpected response to k packet: %s", response.GetStringRef().c_str()); exit_string.assign("got unexpected response to k packet: "); exit_string.append(response.GetStringRef()); } // ... SetExitStatus(exit_status, exit_string.c_str()); StopAsyncThread (); KillDebugserverProcess (); return error; }而不是"OK"或"W"。你无能为力，Xcode背后有一个问题。我发现在重新连接到调试会话之前杀死Xcode的调试进程，重新启动Xcode以及重新启动计算机的组合可以解决这个问题。

要了解有关OS X上本机进程的更多信息，请查看嵌套"X"语句中的注释：

if

有关可能发生此错误的原因的有用评论：

// For Native processes on Mac OS X, we launch through the Host Platform, then hand the process off
// to debugserver, which becomes the parent process through "PT_ATTACH".  Then when we go to kill
// the process on Mac OS X we call ptrace(PT_KILL) to kill it, then we call waitpid which returns
// with no error and the correct status.  But amusingly enough that doesn't seem to actually reap
// the process, but instead it is left around as a Zombie.  Probably the kernel is in the process of
// switching ownership back to lldb which was the original parent, and gets confused in the handoff.
// Anyway, so call waitpid here to finally reap it.

Answer 2

这是Xcode“表演”。我也得到了一次并通过在终端中运行它来修复它：

rm -rf ~/Library/Developer/Xcode/DerivedData/* ~/Library/Caches/com.apple.dt.Xcode/*

基本上清除了有时会损坏的Xcode缓存和派生数据。希望对你有效。

Xcode“来自调试器的消息：对k包有意外响应：OK”

2 个答案: