DMARC-Filter: OpenDMARC Filter v1.4.2 delorie.com 58MLT2bW1722565 Authentication-Results: delorie.com; dmarc=pass (p=none dis=none) header.from=cygwin.com Authentication-Results: delorie.com; spf=pass smtp.mailfrom=cygwin.com DKIM-Filter: OpenDKIM Filter v2.11.0 delorie.com 58MLT2bW1722565 Authentication-Results: delorie.com; dkim=pass (1024-bit key, unprotected) header.d=cygwin.com header.i=@cygwin.com header.a=rsa-sha256 header.s=default header.b=OMjhHjya X-Recipient: archive-cygwin AT delorie DOT com DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org B66663858416 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cygwin.com; s=default; t=1758576540; bh=Y3vB50DPcMIQlJO0E8fRQ8eVO/OdSKSALPDNrygJnVI=; h=Date:To:cc:Subject:In-Reply-To:References:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From:Reply-To:From; b=OMjhHjyaMFB76+dZ8aviLbi74qCvhUOWnqehTilUbEWpUHoE54Jm7jBMz41yihIiu 8FMoHlnhYhMLQRB6b9lw7yKzGcFOyPMqVZjoSd7lxqBWVMJ8bfc/00dmT5a8cU9wAd CjkMsfFobrbDEDBaq/ePxVSQamnbIhLs7KLGtu/s= X-Original-To: cygwin AT cygwin DOT com Delivered-To: cygwin AT cygwin DOT com DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 1EB963858D1E ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 1EB963858D1E ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1758576516; cv=none; b=hDQ2CTgSqTOXOQkw+tlc7Nnq8ZNkiewKezP+6gq9QVWjhbJY1QeCPDcJXH4CLPGd2pX4MF8VF82Mujy5QvnDJxh94WrHlbIVDdXYBmPEbiM9iuGV7izg+ra/KWy/aAFTrRxLsYrWgDYtD/xteCEpQdIPi2M5dXyI832pd3CXcJs= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1758576516; c=relaxed/simple; bh=TBqICr8y2x1t/ZjhObG+5zwsMYhFqfFkX5/eyx15Ueg=; h=DKIM-Signature:Date:From:To:Subject:Message-ID:MIME-Version; b=M37sfPLvSKSHU6UtuKocsxnujn2XFMd0r/yh5+Yl9otRfXaUY1BcaRl65lWZITqKXXQndBclaGHQdCFR+cDeR7RyX3uL47oe7AKSIQIj/w7uKjtrbaop7+WKa/SytWLf5JoI7IUqfL3iYVjlzPBiV9kmU7cMOVBEiF0GDPmNauk= ARC-Authentication-Results: i=1; server2.sourceware.org DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 1EB963858D1E Date: Mon, 22 Sep 2025 14:28:35 -0700 (PDT) X-X-Sender: jeremyd AT resin DOT csoft DOT net To: Mark Liam Brown cc: cygwin AT cygwin DOT com Subject: Re: Why does Cygwin not use MiCloneProcessAddressSpace() for fork() In-Reply-To: Message-ID: <631f0af5-d05c-cb33-956f-b1c284a37766@jdrake.com> References: MIME-Version: 1.0 X-BeenThere: cygwin AT cygwin DOT com X-Mailman-Version: 2.1.30 Precedence: list List-Id: General Cygwin discussions and problem reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Jeremy Drake via Cygwin Reply-To: Jeremy Drake Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: cygwin-bounces~archive-cygwin=delorie DOT com AT cygwin DOT com Sender: "Cygwin" On Mon, 22 Sep 2025, Mark Liam Brown via Cygwin wrote: > Greetings! > > Why does Cygwin not use MiCloneProcessAddressSpace() for fork()? That > function was added for the Windows Services for UNIX, and it still > working in Windows 11. > > Mark > This is a perennial question, and the short answer is that it doesn't play well with win32 dlls. Replies turned up via simple search: https://cygwin.com/pipermail/cygwin/2016-January/225571.html https://cygwin.com/pipermail/cygwin/2018-January/235767.html -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple