Attaching to a remote EH process actually debugs the parent server process

[roblourens]

• Connect to an ssh remote
• Start this debug config

{
    "name": "Attach by Process ID",
    "processId": "${command:PickProcess}",
    "request": "attach",
    "skipFiles": [
        "<node_internals>/**"
    ],
    "type": "node"
}

• Pick the pid of the extension host, or one of its children
• Check process.pid in the debug console to see that you got attached to the server process instead
• Also, setting

"attachExistingChildren": true,
"autoAttachChildProcesses": true,

doesn't make a difference

[roblourens]

Context: https://github.com/microsoft/vscode-remote-release/wiki/Profiling-Remote-Processes

[connor4312]

I cannot reproduce this. But note that putting a process in debug mode involves sending a SIGUSR1 signal to the process which causes it to listen on 9229. If something else was already listening on that port for any reason, that will be connected to instead of the desired process. Would that explain what you were seeing? / was the server process already listening on 9229 prior to running that command?

[connor4312]

Let me know if you have more info / think there's an underlying issue here