From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp2 ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms11 with LMTPS id 0K2iEdsQSV8YVwAA0tVLHw (envelope-from ) for ; Fri, 28 Aug 2020 14:12:43 +0000 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp2 with LMTPS id kHl/DdsQSV8KcgAAB5/wlQ (envelope-from ) for ; Fri, 28 Aug 2020 14:12:43 +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 3693E940B0D for ; Fri, 28 Aug 2020 14:12:38 +0000 (UTC) Received: from localhost ([::1]:38472 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kBf7N-0003f3-1E for larch@yhetil.org; Fri, 28 Aug 2020 10:12:37 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:48302) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kBf6o-0003SH-FR for bug-guix@gnu.org; Fri, 28 Aug 2020 10:12:02 -0400 Received: from debbugs.gnu.org ([209.51.188.43]:35492) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kBf6o-00044E-5q for bug-guix@gnu.org; Fri, 28 Aug 2020 10:12:02 -0400 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1kBf6o-0000gZ-1j for bug-guix@gnu.org; Fri, 28 Aug 2020 10:12:02 -0400 X-Loop: help-debbugs@gnu.org Subject: bug#43062: --expose in vm does not reflect file modifications in guest Resent-From: Ludovic =?UTF-8?Q?Court=C3=A8s?= Original-Sender: "Debbugs-submit" Resent-CC: bug-guix@gnu.org Resent-Date: Fri, 28 Aug 2020 14:12:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 43062 X-GNU-PR-Package: guix X-GNU-PR-Keywords: To: 43062@debbugs.gnu.org, elaexuotee@wilsonb.com Received: via spool by 43062-submit@debbugs.gnu.org id=B43062.15986238962597 (code B ref 43062); Fri, 28 Aug 2020 14:12:02 +0000 Received: (at 43062) by debbugs.gnu.org; 28 Aug 2020 14:11:36 +0000 Received: from localhost ([127.0.0.1]:47037 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kBf6O-0000fp-9h for submit@debbugs.gnu.org; Fri, 28 Aug 2020 10:11:36 -0400 Received: from eggs.gnu.org ([209.51.188.92]:38004) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kBf6M-0000fc-PO for 43062@debbugs.gnu.org; Fri, 28 Aug 2020 10:11:35 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:58983) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kBf6H-0003y5-9e; Fri, 28 Aug 2020 10:11:29 -0400 Received: from [2001:660:6102:320:e120:2c8f:8909:cdfe] (port=49300 helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1kBf6G-0005Ok-Mg; Fri, 28 Aug 2020 10:11:28 -0400 From: Ludovic =?UTF-8?Q?Court=C3=A8s?= References: <3150ZD6Q06IY5.2LQMQ0E8MMOHQ@wilsonb.com> X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: 12 Fructidor an 228 de la =?UTF-8?Q?R=C3=A9volution?= X-PGP-Key-ID: 0x090B11993D9AEBB5 X-PGP-Key: http://www.fdn.fr/~lcourtes/ludovic.asc X-PGP-Fingerprint: 3CE4 6455 8A84 FDC6 9DB4 0CFB 090B 1199 3D9A EBB5 X-OS: x86_64-pc-linux-gnu Date: Fri, 28 Aug 2020 16:11:26 +0200 In-Reply-To: <3150ZD6Q06IY5.2LQMQ0E8MMOHQ@wilsonb.com> (elaexuotee's message of "Thu, 27 Aug 2020 11:04:47 +0900") Message-ID: <87wo1ioo6p.fsf@gnu.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (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: bug-guix@gnu.org List-Id: Bug reports for GNU Guix List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-guix-bounces+larch=yhetil.org@gnu.org Sender: "bug-Guix" X-Scanner: scn0 Authentication-Results: aspmx1.migadu.com; dkim=none; dmarc=none; spf=pass (aspmx1.migadu.com: domain of bug-guix-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=bug-guix-bounces@gnu.org X-Spam-Score: -1.01 X-TUID: SribJZKbakNa --=-=-= Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hi, elaexuotee--- via Bug reports for GNU Guix skribis: > When using --expose to mirror a path between host and guest, the guest mi= rror > fails to reflect file modifications from the host. However, file creation= and > deletion are correctly propogated. > > To pick up file modifications in the guest, it is sufficient to remount > mirroring 9p filesystem. > > Is this behaviour expected? I believe this comes from the =E2=80=9Ccache=3Dloose=E2=80=9D 9p mount opti= on added in commit e0d96774dd48c29ccc4c90fea1f8f71850ab0879. Does the patch below help? Chris, what do you think? How would this affect the performance issues that led to e0d96774dd48c29ccc4c90fea1f8f71850ab0879? Thanks, Ludo=E2=80=99. --=-=-= Content-Type: text/x-patch Content-Disposition: inline diff --git a/gnu/system/vm.scm b/gnu/system/vm.scm index 861f2a427a..80a8618729 100644 --- a/gnu/system/vm.scm +++ b/gnu/system/vm.scm @@ -699,7 +699,8 @@ of the GNU system as described by OS." (device (file-system->mount-tag source)) (type "9p") (flags (if writable? '() '(read-only))) - (options "trans=virtio,cache=loose") + (options (string-append "trans=virtio" + (if writable? "" ",cache=loose"))) (check? #f) (create-mount-point? #t))))) --=-=-=--