From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from fanzine2.igalia.com (fanzine2.igalia.com [213.97.179.56]) (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 81EBB38FAD; Fri, 29 Mar 2024 21:32:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.97.179.56 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711747946; cv=none; b=qtD8R4iMjzQrvkbLwtXs6OkpbkTFaVY8LW90+5laViqwbttwPwefuS/vbsk10PXLq7WzR77ptbhkWv6KjYlW5Xrbt7aVpHmYYOYW6ULBkgJcXjQia6jgZA3nQ/kTg9mSQYqsBqxu8JqF7g1DpClyWte9b2Ahz8/g5olyDsIRVnQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711747946; c=relaxed/simple; bh=03k3/MoIFh20kQtGBfrG86YnFtiVqYH7W4PbBw36ROQ=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=DZHe6ic/YTaBiP87rm3cddpkT7UufUSIt4W+nFMjzOYq9pX9ZI4qUbI5DR0rixTZMHLbwPQX+zxy/XFqIUvojlJE3xjuVbOgPHRG3P98VrPKAcO+ZJv7MWHOr8bmA8eb13/+pOf/caaqf8S/fBHyFP+UFn4DET7oON/9Rf5xjGU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=igalia.com; spf=pass smtp.mailfrom=igalia.com; dkim=pass (2048-bit key) header.d=igalia.com header.i=@igalia.com header.b=ba6mIC6T; arc=none smtp.client-ip=213.97.179.56 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=igalia.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=igalia.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=igalia.com header.i=@igalia.com header.b="ba6mIC6T" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=igalia.com; s=20170329; h=Content-Transfer-Encoding:Content-Type:In-Reply-To:From: References:Cc:To:Subject:MIME-Version:Date:Message-ID:Sender:Reply-To: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=8dH4O4z+/RT4LVfi/suZsrGaL+23+8UZ0hz47CF7NNQ=; b=ba6mIC6TKKXVH+seYPfBtBkpoW Nnd8NycmJb4NqNVriO5DU0gBLuz8SWPPA8cdWVRDzECz6WFHJytH8oAibrT0YMnqPeQGdUhuxAk+P IUGgTw9XovMtYInSDRuoCVYv2DljRoBGb+9GdltFN405lHq+LyidyI/E575M4F5M2WtwCT7HXJGbZ z4cbLT2LP4NoQHv/sjFY+6C2G8Ino0qsO8p+ALrWCQ/Bv/qDMl9GIHPDVFk4j6T+Q7O8DGe6Os+tq pND4MkNzRcf9W8IFJMrOhyJCIZHvS1fenecUwDcN6Fz/oqdpjDRRCfSqz1AxvWGt+IuNytANrdMVz CeM2YYzw==; Received: from 187-26-72-49.3g.claro.net.br ([187.26.72.49] helo=[192.168.224.24]) by fanzine2.igalia.com with esmtpsa (Cipher TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_128_GCM:128) (Exim) id 1rqJpi-00Gm6d-MD; Fri, 29 Mar 2024 22:32:19 +0100 Message-ID: Date: Fri, 29 Mar 2024 18:32:09 -0300 Precedence: bulk X-Mailing-List: linux-efi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.15.1 Subject: Re: [PATCH 1/3] efi: pstore: Request at most 512 bytes for variable names Content-Language: en-US To: Ard Biesheuvel Cc: linux-efi@vger.kernel.org, Tim Schumacher , Kees Cook , Tony Luck , linux-hardening@vger.kernel.org References: <20240315002616.422802-1-timschumi@gmx.de> <2a500ade-a91d-15f2-e5ae-7f261e6a84b4@igalia.com> From: "Guilherme G. Piccoli" In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 29/03/2024 04:34, Ard Biesheuvel wrote: > [...] > > I'm just not impressed by the general quality of implementations - > relying on this when the system is going down is a reasonable last > resort, perhaps, but if other options are available, I'd prioritize > those. > > And this is for the oops/panic logs only - other uses of pstore seem > better served with ordinary file based persistence. OK, I understand now. Thanks, Guilherme