Received: by 2002:ac0:aed5:0:0:0:0:0 with SMTP id t21csp3137344imb; Tue, 5 Mar 2019 01:42:46 -0800 (PST) X-Google-Smtp-Source: APXvYqx4Q0FGMImAIXBPUe9jPEkDAiojLfglKuTIXQXlObArf+MyGE/VXiErH7qJJ3g9SzYaN1oy X-Received: by 2002:a63:305:: with SMTP id 5mr626756pgd.57.1551778966887; Tue, 05 Mar 2019 01:42:46 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1551778966; cv=none; d=google.com; s=arc-20160816; b=nZjB6L9LuKoCs+Euecot/k/69pNcnboAfZZoA7v/g9l/8vnuVQf+T6aMUs9bEgSKp+ 5t0Y2uOA1zxvPvP+x46W/l/LhUFT7+ixkor1b5A2mOXMFNb4ofdVwPBXJyVkjbLEIog5 nydS4Jgn12RS/QBYm3fBogQJ/QyIDIvdMJ//cvbjBUEPx7JkarwYhRjJXMhCeZNCq08B utZ7wGgS3M60lxvwqe0rjKVE9KhAhoUQRceWVsqzyfXKJEqqR8FbYybdqU+h3DyRfDKP NhK/jXL6lPfUIRtsv+CzqQxcW51sC2cCdY/EjS+2M5rQ6LxcOWhf/PUjscMoEohO5KQC IpOg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:dkim-signature; bh=yrBNuRiFJ/dcOxYhLM9Q6U4D3zQpUu5gq8sNNzfnbac=; b=NfUFUHTf/14hsFkTqz5bywU3Ad7YxR89ZmXa/LCsuzj/UJ4pC5q0Eif1q+w+e6gdos Nt42IsDTN2q3a4jz/EcMhF/SSdTZb0Sd72sPJTrmbYurrsaa7LfzpesdoTjhnkzSCJp3 UIbkeAeC+Bu2Hb4bYOGYvK9SpJOBqV1U80ASdTuzc+uOegWzuWLGFA7TUfqQ0ZOdSrb+ KPSVk3UqWBtdolkbaBXrSn3E4TMwUliqjCUvPZsmQlWqccnkdrYIJswH0FWEIirrbsw5 XWbljbSseSS0bsDdI9drjvzCLyjff/E4Es10YkG+8a/zww8GoWwZu/e97v3NJJvYBCfn ipQg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@alien8.de header.s=dkim header.b=FRIop9xV; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=alien8.de Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id l12si8264803plc.0.2019.03.05.01.42.28; Tue, 05 Mar 2019 01:42:46 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@alien8.de header.s=dkim header.b=FRIop9xV; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=alien8.de Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727165AbfCEJTE (ORCPT + 99 others); Tue, 5 Mar 2019 04:19:04 -0500 Received: from mail.skyhub.de ([5.9.137.197]:38430 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726069AbfCEJTE (ORCPT ); Tue, 5 Mar 2019 04:19:04 -0500 Received: from zn.tnic (p200300EC2BCD6B00647FB0CB76B3F976.dip0.t-ipconnect.de [IPv6:2003:ec:2bcd:6b00:647f:b0cb:76b3:f976]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id 94AC21EC05DE; Tue, 5 Mar 2019 10:19:02 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1551777542; h=from:from: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:in-reply-to:in-reply-to: references:references; bh=yrBNuRiFJ/dcOxYhLM9Q6U4D3zQpUu5gq8sNNzfnbac=; b=FRIop9xVyWlnKoejKsnB2B8PlZZ6qC66VHgQyjOQPsWt2J3Eyl0AZrpmS7KWJi5nzFMKg4 1oh2niRuuAPuJT86i+lvbZ4eWcFZqKG7bTdPuxYejmDzHxYnGBp+rUvYJeeJaT5VDU0Czm VObminnxRbdU+kPXLz4XE85HJr43pOM= Date: Tue, 5 Mar 2019 10:19:04 +0100 From: Borislav Petkov To: Jann Horn Cc: Al Viro , Thomas Gleixner , kernel list , linux-fsdevel@vger.kernel.org, the arch/x86 maintainers , Linux API Subject: Re: a.out coredumping: fix or delete? Message-ID: <20190305091904.GB8256@zn.tnic> References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Mar 02, 2019 at 12:57:30AM +0100, Jann Horn wrote: > In theory, Linux can dump cores for a.out binaries. In practice, that > code is pretty bitrotten and buggy. Does anyone want that code so much > that they'd like to fix it, or can we just delete it? I was asking myself the same question while doing 10970e1b4be9 ("x86/a.out: Clear the dump structure initially") especially since it is kinda hard to get the toolchain to even create an a.out executable - your script to create one case-in-point. -- Regards/Gruss, Boris. Good mailing practices for 400: avoid top-posting and trim the reply.