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Date: Mon, 14 Apr 2025 00:33:57 +0100
To: cygwin AT cygwin DOT com
Subject: Hang in http.server on 2nd request
Message-ID: <20250414003357.5877165a@qkhx.uk>
MIME-Version: 1.0
From: Tim Magee via Cygwin <cygwin AT cygwin DOT com>
Reply-To: Tim Magee <cygwin-ir AT qkhx DOT uk>
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Sender: "Cygwin" <cygwin-bounces~archive-cygwin=delorie DOT com AT cygwin DOT com>

Hello. I'd like to know whether I'm going barmy.

I'm seeing a hang in Python's http.server module. It's
100% reproducible for me, and not hard to provoke.

In one Cygwin shell I go:

  $ python -m http.server 7777  # http.server is Python's
                                # standard library package

In another Cygwin shell I go:

  $ wget localhost:7777/    # completes normally, writes index.html
  $ wget localhost:7777/    # connects to the server, sends the request,
                            # times out waiting for a response

Meanwhile in the first shell, the Python process has gone berserk.
Process Explorer shows it as using 25% of CPU. My CPU has 8 cores.

My Cygwin version is 3.6.0-1 and I'm using it with Windows 10.

I'm using packages:
  python312 v3.12.9-1
  wget v1.25.0-1

This was working OK in Cygwin with my previous Python version, 3.9.

Cheers,
Tim

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