[Lldb-commits] [lldb] [lldb-dap] Ensure we acquire the SB API lock while handling requests. (PR #137026)

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jeffreytan81 wrote:

> What is the other lock involved in the deadlock, other than the API mutex?

It is the same lock (`target.GetAPIMutex()`). If you looked at the shared callstacks above, main thread is holding the API mutex in `BaseRequestHandler`, at the same time, event thread above tries to call `SBProcess::GetExitStatus()` which also tries to acquire the same API mutex internally. This caused deadlock. 




https://github.com/llvm/llvm-project/pull/137026