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=-2.1 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, 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 592E6C49ED7 for ; Mon, 16 Sep 2019 10:34:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2ABEC206A4 for ; Mon, 16 Sep 2019 10:34:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="S5RsoMbg" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730100AbfIPKeC (ORCPT ); Mon, 16 Sep 2019 06:34:02 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:33034 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728736AbfIPKeB (ORCPT ); Mon, 16 Sep 2019 06:34:01 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding: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=0zriILmKCDGiikF7Oyn0qe09shDqYGPmrGUDW/y4opg=; b=S5RsoMbgYcp2ozJ24vD9vcYvg 3+waoNpeH7BdOwTZ9mQDwhqeRrL+u1yfQqcrYQX0AiE/o7ExBE5G6AUCLHNxsORb67Es/nqekoO5T PpgBZ6Iq5p9gt5Jp/HreSVJHu6sHhJGjJldEJ4Kh2MiaYVaURe7jJM943cQKct3wRsipICdc8yLA9 0rZwUOVWuW/v96V9i0xfVeh6v61bBpYZl/XfXpxB/8vYe9bESSI4J+n5lWxXTS+V7kUepU22DrON/ +LcV+XAIUbB6y9UM12b26731Dae8/BvvXcQ9iSEo9zYvR3QPLxJLfR5IyWM2ZurzeZnSO4UxqfFn/ wFhlZ7E4A==; Received: from hch by bombadil.infradead.org with local (Exim 4.92.2 #3 (Red Hat Linux)) id 1i9oKN-00040J-Nw; Mon, 16 Sep 2019 10:33:51 +0000 Date: Mon, 16 Sep 2019 03:33:51 -0700 From: Christoph Hellwig To: "Theodore Y. Ts'o" Cc: "Ahmed S. Darwish" , Andreas Dilger , Linus Torvalds , Jan Kara , zhangjs , linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: Linux 5.3-rc8 Message-ID: <20190916103351.GA14308@infradead.org> References: <20190910042107.GA1517@darwi-home-pc> <20190910115635.GB2740@mit.edu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190910115635.GB2740@mit.edu> User-Agent: Mutt/1.12.1 (2019-06-15) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Sep 10, 2019 at 07:56:35AM -0400, Theodore Y. Ts'o wrote: > Hmm, I'm not seeing this on a Dell XPS 13 (model 9380) using a Debian > Bullseye (Testing) running a rc4+ kernel. > > This could be because Debian is simply doing more I/O; or it could be > because I don't have some package installed which is trying to reading > from /dev/random or calling getrandom(2). Previously, Fedora ran into > blocking issues because of some FIPS compliance patches to some > userspace daemons. So it's going to be very user space dependent and > package dependent. Btw, I've been seeing this issue on debian testing with an XFS root file system ever since the blocking random changes went in. There are a few reports (not from me) in the BTS since. I ended up just giving up on gdm and using lightdm instead as it was clearly related to that.