From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp12.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms5.migadu.com with LMTPS id APS3NSirxWLPfQAAbAwnHQ (envelope-from ) for ; Wed, 06 Jul 2022 17:32:56 +0200 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp12.migadu.com with LMTPS id jn1wNSirxWKwngAAauVa8A (envelope-from ) for ; Wed, 06 Jul 2022 17:32:56 +0200 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by aspmx1.migadu.com (Postfix) with ESMTPS id 9AE4D2B454 for ; Wed, 6 Jul 2022 17:32:56 +0200 (CEST) Received: from localhost ([::1]:52292 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1o971L-0003Mo-9i for larch@yhetil.org; Wed, 06 Jul 2022 11:32:55 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:60066) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1o970b-0003ME-1L for guix-devel@gnu.org; Wed, 06 Jul 2022 11:32:09 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:48832) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1o970R-0000Bw-KZ; Wed, 06 Jul 2022 11:32:08 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-Version:In-Reply-To:Date:References:Subject:To: From; bh=LcBeraJEBzYBSbMTjuv3Gzcq2Q+yz+gdA19kltLGkG8=; b=keeC73ZkT8fvEfAZCC/e K8OBgGs7Renky8cV2XYotCmBcZj/WdUrObiJEY6VdvLBOL7hz57AKhyhlwBA/djbiommsPt0YrvvK 8k1JmJSBmFeXU+O5Anp/fMuqPpx0Cazlzs5KrVD8Q7dH3s7wxy5AjlTGs0c+kSFIZIubl4Lr8Nhyx tNYqNzcuSpGamIwU6PAeuVPOqC49hbhnOHBWF4+aVrpEG7/hRBkvrE8JJROwuUnyHtZnSQ7PTK2hV cng3BYd0fuG7z9QWJWS/70mIsmPSjPs+PJZiqN//Ld93upMBDyRs/wAaVLHiZGSBsCJuUKwRwq2dF MG5FIc9mG5nxLg==; Received: from 91-160-117-201.subs.proxad.net ([91.160.117.201]:59136 helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1o970K-00043u-Jl; Wed, 06 Jul 2022 11:31:58 -0400 From: =?utf-8?Q?Ludovic_Court=C3=A8s?= To: Akib Azmain Turja Cc: Leo Famulari , guix-devel@gnu.org Subject: Re: Rust in the kernel References: <878rp9c9x9.fsf@gnu.org> <87pmikkktu.fsf@disroot.org> X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: Octidi 18 Messidor an 230 de la =?utf-8?Q?R=C3=A9vol?= =?utf-8?Q?ution=2C?= jour de la Gesse X-PGP-Key-ID: 0x090B11993D9AEBB5 X-PGP-Key: http://www.fdn.fr/~lcourtes/ludovic.asc X-PGP-Fingerprint: 3CE4 6455 8A84 FDC6 9DB4 0CFB 090B 1199 3D9A EBB5 X-OS: x86_64-pc-linux-gnu Date: Wed, 06 Jul 2022 17:31:50 +0200 In-Reply-To: <87pmikkktu.fsf@disroot.org> (Akib Azmain Turja's message of "Tue, 05 Jul 2022 14:47:09 +0600") Message-ID: <878rp62r6h.fsf@gnu.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-BeenThere: guix-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-devel-bounces+larch=yhetil.org@gnu.org Sender: "Guix-devel" X-Migadu-Flow: FLOW_IN X-Migadu-To: larch@yhetil.org X-Migadu-Country: US ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1657121576; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:list-id:list-help: list-unsubscribe:list-subscribe:list-post:dkim-signature; bh=LcBeraJEBzYBSbMTjuv3Gzcq2Q+yz+gdA19kltLGkG8=; b=bBN33tWzPz7VgmRR2ji9/fwx1pti79QjoMPlngHb69qBd9swcyuKmw5MTk1Nms3R89h/UV RiBhlNo2N55fNOn0akqAt8qqPtA1OqOkZ/YSi4khh49i2r5m6XUzdC3P1fFANIVjtJHL8V K6HMvcFt1OS/MzlFb9P9mlYjcR4zXlpI9Ad4B+PUANGzXnnXsBRkB9M/PxXd1cKS16gRRQ cKrfGMqRa3SHEbGpIiv07Wcs3a7EqIB4f7U+k9UQEVirBLxbzDDXv2nop4kpx3ub9usKvg C1Ajxl29oxsZRbztYXp/1TadIhDdbB1K2oKXZmZdD/Kt1SvGhGMoljo3bsoMCQ== ARC-Seal: i=1; s=key1; d=yhetil.org; t=1657121576; a=rsa-sha256; cv=none; b=iz1cRHKb/Vaac0GysGW6FrNeiYEXCAcsseW34vsw2oADEhBiEsNhWPQI4RQq16pD4gR6Un q0h+1mDJKZJ9YWT1nzfbZWMEXR1w2Rf9KNE8ZR793AxuoAcDGJV9zhQPmACLpD+Y4RcsW3 JHQUapKKYZCuxeJReAeb5ooJ0XPqrKjWoyHHNyBWyJCfngGHhsMhbN9B91T08FAT+RTxLg 2oM7oLJvpha9ieYUa4/cIzFGtCWopVfPK+2XDVdLmmXqoI5vQLQ+JouKaihoB1+t1s0K5n RxKXO97pRW9ODc6Ghc56fj7CrIylkFXMW+pbg8HYD3URFMqDO9QVamFNYEXtMA== ARC-Authentication-Results: i=1; aspmx1.migadu.com; dkim=pass header.d=gnu.org header.s=fencepost-gnu-org header.b=keeC73Zk; dmarc=pass (policy=none) header.from=gnu.org; spf=pass (aspmx1.migadu.com: domain of "guix-devel-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-devel-bounces+larch=yhetil.org@gnu.org" X-Migadu-Spam-Score: -5.15 Authentication-Results: aspmx1.migadu.com; dkim=pass header.d=gnu.org header.s=fencepost-gnu-org header.b=keeC73Zk; dmarc=pass (policy=none) header.from=gnu.org; spf=pass (aspmx1.migadu.com: domain of "guix-devel-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-devel-bounces+larch=yhetil.org@gnu.org" X-Migadu-Queue-Id: 9AE4D2B454 X-Spam-Score: -5.15 X-Migadu-Scanner: scn1.migadu.com X-TUID: 9HiJ5jfctmDg Hi, Akib Azmain Turja skribis: >> (During that time, interested readers can also take a stab at improving >> support for the Hurd, which relies on that revolutionary technology >> called =E2=80=9Caddress spaces=E2=80=9D to ensure Memory Safety=E2=84=A2= among other things!) >> >> Ludo=E2=80=99. >> > > Why "address spaces" is a revolutionary technology? All kernels (except > the "Hello, World!" ones) use it. That was an ironic remark from my part. Virtual memory management and address spaces are not revolutionary at all: that=E2=80=99s how we protect processes from stomping onto each other=E2=80=99s toes since the 70=E2=80= =99s. If the goal really is to improve OS reliability through a multi-person-year effort, then I believe pouring that effort into a microkernel-based design would be more fruitful. My 2=C2=A2! Ludo=E2=80=99.