From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp1 ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms11 with LMTPS id SGRqB1BDc1/MJgAA0tVLHw (envelope-from ) for ; Tue, 29 Sep 2020 14:23:12 +0000 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp1 with LMTPS id OBZKA1BDc1/wYAAAbx9fmQ (envelope-from ) for ; Tue, 29 Sep 2020 14:23:12 +0000 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by aspmx1.migadu.com (Postfix) with ESMTPS id 74CA29402A3 for ; Tue, 29 Sep 2020 14:23:11 +0000 (UTC) Received: from localhost ([::1]:60598 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kNGX8-0008NF-8a for larch@yhetil.org; Tue, 29 Sep 2020 10:23:10 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:52676) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kNGX0-0008M9-C3 for guix-patches@gnu.org; Tue, 29 Sep 2020 10:23:02 -0400 Received: from debbugs.gnu.org ([209.51.188.43]:45252) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kNGX0-0007kr-29 for guix-patches@gnu.org; Tue, 29 Sep 2020 10:23:02 -0400 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1kNGWz-000380-U6 for guix-patches@gnu.org; Tue, 29 Sep 2020 10:23:01 -0400 X-Loop: help-debbugs@gnu.org Subject: [bug#43650] [PATCH 4/8] services: hurd-vm: Check whether /dev/kvm exists at run time. Resent-From: Jan Nieuwenhuizen Original-Sender: "Debbugs-submit" Resent-CC: guix-patches@gnu.org Resent-Date: Tue, 29 Sep 2020 14:23:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 43650 X-GNU-PR-Package: guix-patches X-GNU-PR-Keywords: patch To: Ludovic =?UTF-8?Q?Court=C3=A8s?= Cc: 43650@debbugs.gnu.org Received: via spool by 43650-submit@debbugs.gnu.org id=B43650.160138933511926 (code B ref 43650); Tue, 29 Sep 2020 14:23:01 +0000 Received: (at 43650) by debbugs.gnu.org; 29 Sep 2020 14:22:15 +0000 Received: from localhost ([127.0.0.1]:56791 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kNGWE-00036I-W4 for submit@debbugs.gnu.org; Tue, 29 Sep 2020 10:22:15 -0400 Received: from eggs.gnu.org ([209.51.188.92]:45464) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kNGWC-000363-QD for 43650@debbugs.gnu.org; Tue, 29 Sep 2020 10:22:14 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:38133) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kNGW7-0007ct-4U; Tue, 29 Sep 2020 10:22:07 -0400 Received: from [2001:980:1b4f:1:42d2:832d:bb59:862] (port=47914 helo=dundal.janneke.lilypond.org) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1kNGW6-0004er-5R; Tue, 29 Sep 2020 10:22:06 -0400 From: Jan Nieuwenhuizen Organization: AvatarAcademy.nl References: <20200927153221.9154-1-ludo@gnu.org> <20200927153221.9154-4-ludo@gnu.org> <87h7rh4yyd.fsf@gnu.org> <87r1qk7v11.fsf@gnu.org> X-Url: http://AvatarAcademy.nl Date: Tue, 29 Sep 2020 16:22:02 +0200 In-Reply-To: <87r1qk7v11.fsf@gnu.org> ("Ludovic =?UTF-8?Q?Court=C3=A8s?="'s message of "Tue, 29 Sep 2020 12:10:50 +0200") Message-ID: <87v9fw1x4l.fsf@gnu.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1 (gnu/linux) MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="=-=-=" X-Spam-Score: -2.3 (--) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-Spam-Score: -3.3 (---) X-BeenThere: guix-patches@gnu.org List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-patches-bounces+larch=yhetil.org@gnu.org Sender: "Guix-patches" X-Scanner: scn0 Authentication-Results: aspmx1.migadu.com; dkim=none; dmarc=pass (policy=none) header.from=gnu.org; spf=pass (aspmx1.migadu.com: domain of guix-patches-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=guix-patches-bounces@gnu.org X-Spam-Score: -1.51 X-TUID: prE5KP1+QZXb --=-=-= Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Ludovic Court=C3=A8s writes: Hello, > I=E2=80=99ve pushed =E2=80=98wip-childhurd=E2=80=99 with a few additional= commits. Great, this works/fixes it for me! Using the attached bare+childhurd.tmpl, I can build and start a Guix VM with a childhurd: --8<---------------cut here---------------start------------->8--- $ $(./pre-inst-env guix system vm gnu/system/examples/bare+childhurd.tmpl) \ -m 1G --nographic --net nic \ --net user,hostfwd=3Dtcp:127.0.0.1:12022-:2222,hostfwd=3Dtcp:127.0.0.1:13= 022-:10022 --8<---------------cut here---------------end--------------->8--- and then, after half a minute or so: --8<---------------cut here---------------start------------->8--- $ ssh -p 13022 localhost =EE=BC=80=EE=BC=81=EE=BC=82=EE=BC=83=EE=BC=84=EE=BC=85 =EE=BC=86=EE=BC=87=EE=BC=88=EE=BC=89=EE=BC=8A=EE=BC=8B =EE=BC=8C=EE=BC=8D=EE=BC=8E=EE=BC=8F=EE=BC=90=EE=BC=91 This is the GNU Hur= d. Welcome. root@childhurd ~# --8<---------------cut here---------------end--------------->8--- > The flaky startup issue appears to be fixed by: > > 88946005d7 * services: secret-service: Add initial client/server handsh= ake. > > Before that, what would happen is that: > > 1. The host would connect(2) to QEMU as soon as QEMU is running; > connect(2) would succeed immediately and so the host would send its > secrets right away, disconnect, and move on. > > However, at that point, the guest is still booting and its secret > service server is not even accept(2)ing yet. Looks like QEMU=E2=80= =99s > SLIRP would more or less buffer the packets the host sent, =E2=80=9C= more or > less=E2=80=9D being the important point. > > 2. The guest would eventually accept(2), which would succeed. Then it > would sometimes receive stuff, sometimes not, depending on what > happened with the SLIRP buffering I suppose. Ah, thanks for the explanation...that makes sense. > Consequently, it can take ~20s for the =E2=80=98start=E2=80=99 method of = the childhurd > to succeed. Eventually, when shepherd runs on Fibers or similar, it > won=E2=80=99t be a problem, but for now it means that PID=C2=A01 remains = stuck in > select(2) for this many seconds. Yeah...Anyway LGTM! 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