From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.5 required=3.0 tests=FAKE_REPLY_C, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 94758C49ED7 for ; Mon, 16 Sep 2019 03:52:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 675E220890 for ; Mon, 16 Sep 2019 03:52:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729107AbfIPDwy (ORCPT ); Sun, 15 Sep 2019 23:52:54 -0400 Received: from helcar.hmeau.com ([216.24.177.18]:33832 "EHLO fornost.hmeau.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727387AbfIPDwy (ORCPT ); Sun, 15 Sep 2019 23:52:54 -0400 Received: from gwarestrin.arnor.me.apana.org.au ([192.168.0.7]) by fornost.hmeau.com with smtp (Exim 4.89 #2 (Debian)) id 1i9i41-0000sf-QO; Mon, 16 Sep 2019 13:52:34 +1000 Received: by gwarestrin.arnor.me.apana.org.au (sSMTP sendmail emulation); Mon, 16 Sep 2019 13:52:28 +1000 Date: Mon, 16 Sep 2019 13:52:28 +1000 From: Herbert Xu To: "Theodore Y. Ts'o" Cc: torvalds@linux-foundation.org, darwish.07@gmail.com, adilger.kernel@dilger.ca, jack@suse.cz, rstrode@redhat.com, mccann@jhu.edu, zachary@baishancloud.com, linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: Linux 5.3-rc8 Message-ID: <20190916035228.GA1767@gondor.apana.org.au> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190911160729.GF2740@mit.edu> X-Newsgroups: apana.lists.os.linux.kernel 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 Theodore Y. Ts'o wrote: > > Ultimately, though, we need to find *some* way to fix userspace's > assumptions that they can always get high quality entropy in early > boot, or we need to get over people's distrust of Intel and RDRAND. > Otherwise, future performance improvements in any part of the system > which reduces the number of interrupts is always going to potentially > result in somebody's misconfigured system or badly written > applications to fail to boot. :-( Can we perhaps artifically increase the interrupt rate while the CRNG is not initialised? Cheers, -- Email: Herbert Xu Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt