From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-out.m-online.net (mail-out.m-online.net [212.18.0.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F212A1DD0F7 for ; Fri, 25 Oct 2024 15:18:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=212.18.0.10 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729869492; cv=none; b=gNDSoGyguL1Jh2/AWhjhnfnqiMZ7G2BOfJ1r9LaDweCQ7+OeYjPLl+AcGMd8onbiih2Lsq831vUjTHtyc+q5vTJMmh+Er3Dk9Th4qNsIUD+solhFz5cMX2ggokTWVhYt+u8YoKsxiZ8kALrWCbVkcvg+lj5c6E68ctlufpNOXLk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729869492; c=relaxed/simple; bh=QFByrHmABEQFsSfBmrf9Wu0R344iYNXNrRDX8b9nBLk=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=pNgX0a8wYsRnpPxXd/TPaUi8P1hZlpT94yVwy6npIFtK+NYS+Ewaf/Hc3Me4ohtVZf77ljHhmPEf3wAeL8TfM1CKyTLXoFDDrOE7UpFJaMltbQqX2HgaPb755NU+6636lWnMNRgQzoeVg9zR/GTyqkQ/EWRrw//JnzT7cwUtFzM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=linux-m68k.org; spf=pass smtp.mailfrom=nefkom.net; arc=none smtp.client-ip=212.18.0.10 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=linux-m68k.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=nefkom.net Received: from frontend01.mail.m-online.net (unknown [192.168.8.182]) by mail-out.m-online.net (Postfix) with ESMTP id 4XZmP55fcbz1sBqH; Fri, 25 Oct 2024 17:07:53 +0200 (CEST) Received: from localhost (dynscan1.mnet-online.de [192.168.6.68]) by mail.m-online.net (Postfix) with ESMTP id 4XZmP52Vwdz1r96G; Fri, 25 Oct 2024 17:07:53 +0200 (CEST) X-Virus-Scanned: amavis at mnet-online.de Received: from mail.mnet-online.de ([192.168.8.182]) by localhost (dynscan1.mail.m-online.net [192.168.6.68]) (amavis, port 10024) with ESMTP id oHROdYqycZYI; Fri, 25 Oct 2024 17:07:52 +0200 (CEST) X-Auth-Info: qGu4b6JXVneH8KHI8gnJJLFOKdGqHdlx7kREkUP9HjRF4S1AsI3fjVKJCRJzu51y Received: from igel.home (aftr-82-135-83-33.dynamic.mnet-online.de [82.135.83.33]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mail.mnet-online.de (Postfix) with ESMTPSA; Fri, 25 Oct 2024 17:07:52 +0200 (CEST) Received: by igel.home (Postfix, from userid 1000) id 499072C19AF; Fri, 25 Oct 2024 17:07:52 +0200 (CEST) From: Andreas Schwab To: "Arnd Bergmann" Cc: "John Paul Adrian Glaubitz" , linux-m68k , debian-68k , "James Le Cuirot" , "Sam James" , "Geert Uytterhoeven" , "Thorsten Glaser" Subject: Re: Plan needed for switching m68k to 32-bit alignment In-Reply-To: <136f0492-fad7-4c75-b3c8-91ac7dc91570@app.fastmail.com> (Arnd Bergmann's message of "Fri, 25 Oct 2024 10:50:07 +0000") References: <3a5e171bf42e5273eb8235cba04e8328b19c2ca4.camel@physik.fu-berlin.de> <383faec7-8987-4680-920d-8f802e1bea34@app.fastmail.com> <136f0492-fad7-4c75-b3c8-91ac7dc91570@app.fastmail.com> X-Yow: But was he mature enough last night at the lesbian masquerade? Date: Fri, 25 Oct 2024 17:07:52 +0200 Message-ID: <87ed441arb.fsf@igel.home> User-Agent: Gnus/5.13 (Gnus v5.13) Precedence: bulk X-Mailing-List: linux-m68k@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain On Okt 25 2024, Arnd Bergmann wrote: > Doing it without a migration path seems worse to me, > as this would mean breaking every single existing > installation between two kernels, and making it impossible > to bisect other issues, and breaking the rule #1. That's why I didn't change the alignment when I implemented ELF. It would have made it impossible to mix an a.out kernel with ELF user space, and vice versa. -- Andreas Schwab, schwab@linux-m68k.org GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1 "And now for something completely different."