GeezerVison

…-process inspection (pythonGH-106148)

(cherry picked from commit 9126a6a)

Co-authored-by: Pablo Galindo Salgado <[email protected]>

…-process inspection (pythonGH-106148)

(cherry picked from commit 9126a6a)

Co-authored-by: Pablo Galindo Salgado <[email protected]>
Signed-off-by: Pablo Galindo <[email protected]>

…ss inspection (GH-106148) (#106155)

(cherry picked from commit 9126a6a)

``machina stop`` crashed on Windows whenever a configured port had
an actual listener::

  OSError: [WinError 87] The parameter is incorrect

  The above exception was the direct cause of the following exception:
  ...
  SystemError: <built-in function kill> returned a result with an
  exception set

CPython issue python/cpython#106148: on Windows, ``os.kill(pid,
signal.CTRL_BREAK_EVENT)`` calls ``GenerateConsoleCtrlEvent`` under
the hood. When that fails with ``ERROR_INVALID_PARAMETER`` (e.g.
target isn't in the caller's console group -- every port-bound
service that wasn't spawned by our supervisor), CPython sets an
``OSError`` AND returns success. The interpreter detects the
inconsistency and raises ``SystemError`` instead of propagating the
underlying ``OSError``.

``cli/ports.py``'s ``kill_pid`` already had a fallback to
``proc.terminate()`` for the ``OSError`` case, but the
``except (OSError, ProcessLookupError)`` clause never caught
``SystemError`` -- so the bug propagated, typer printed a traceback,
the process exited non-zero, and PowerShell (with its PS 7.4+
default ``$PSNativeCommandUseErrorActionPreference=$true`` plus a
``$ErrorActionPreference='Break'`` or ``Set-PSDebug`` in the user's
profile) dropped into the debugger at the npm shim's
``$ret=$LASTEXITCODE`` line.

Fix: add ``SystemError`` to the except tuple. The existing fallback
to ``TerminateProcess`` (via ``psutil.terminate``) now runs as
designed.

End-to-end verified against the packed npm tarball: ``machina
stop`` invoked from an installed bin shim kills a real process on
port 3010 and exits 0 cleanly, no traceback.

Co-Authored-By: Claude Opus 4.7 (1M context) <[email protected]>