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Thu, 13 Jan 2022 17:43:01 -0500 Received: from debbugs.gnu.org ([209.51.188.43]:41925) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1n88o9-00080x-M5 for bug-guix@gnu.org; Thu, 13 Jan 2022 17:43:01 -0500 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1n88o9-0007uA-KU for bug-guix@gnu.org; Thu, 13 Jan 2022 17:43:01 -0500 X-Loop: help-debbugs@gnu.org Subject: bug#53225: shepherd freezes if wireguard is started with dns config enabled Resent-From: Nathan Dehnel Original-Sender: "Debbugs-submit" Resent-CC: bug-guix@gnu.org Resent-Date: Thu, 13 Jan 2022 22:43:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 53225 X-GNU-PR-Package: guix X-GNU-PR-Keywords: To: Ludovic =?UTF-8?Q?Court=C3=A8s?= Received: via spool by 53225-submit@debbugs.gnu.org id=B53225.164211372530300 (code B ref 53225); Thu, 13 Jan 2022 22:43:01 +0000 Received: (at 53225) by debbugs.gnu.org; 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charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-guix@gnu.org List-Id: Bug reports for GNU Guix List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: 53225@debbugs.gnu.org Errors-To: bug-guix-bounces+larch=yhetil.org@gnu.org Sender: "bug-Guix" X-Migadu-Flow: FLOW_IN X-Migadu-Country: US ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1642113805; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding:resent-cc: resent-from:resent-sender:resent-message-id:in-reply-to:in-reply-to: references:references:list-id:list-help:list-unsubscribe: list-subscribe:list-post:dkim-signature; bh=OsVDoYIAKd6Sm/QPy9mhXLTVoSjBSm9qSAOR2x3p17s=; b=azBslctgWTWKZeumQe9lvvIdwwxIxcGi4Gd7tM5e04G/cikkPyl6bn0QBPrjkusGlPG0YY TsfEczhnIKtsaiULWZhKa9c2fQicyMVFtU0ygt2ifgLZY7VTF2ne+5bjIU+nCZF1uN0Jda pxmmov+xb/qgLhuy4MuPTSd0ejj0xS183V/AqahUtmlZtI5sKXAnPhEDaeezcDJgdgLdXS Vk5C0KIt4wurJhNHlvHujoCmqeI/AiFNfTtqB11oMa+5IrIp41sFCfLVLQ1aT792aAZoUD uA9YR5AaSCzQ2B6ajw7RuhvxMZ9lykWC9fiH1fNbH3aYuigG6n4feaIp7jwmpQ== ARC-Seal: i=1; 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spf=pass (aspmx1.migadu.com: domain of "bug-guix-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="bug-guix-bounces+larch=yhetil.org@gnu.org" X-Migadu-Queue-Id: 573F812FA6 X-Spam-Score: -2.82 X-Migadu-Scanner: scn0.migadu.com X-TUID: pQ9KQ9ciAnyn >What do you mean by =E2=80=9Cfreezing=E2=80=9D? Does =E2=80=98herd status= =E2=80=99 and similar commands block forever? Yes >Requests in the Shepherd are currently handled sequentially. So if you issue several =E2=80=98herd restart=E2=80=99 commands, they=E2=80=99ll be p= rocessed one at a time. This is usually okay because =E2=80=98start=E2=80=99 commands are ex= pected to be quick (just wait for the daemon to write its PID file or similar). What is the nature of this serialization? Does wireguard need to finish before resolvconf can start? Because that's probably the issue. On Thu, Jan 13, 2022 at 9:11 AM Ludovic Court=C3=A8s wrote: > > Hi, > > Nathan Dehnel skribis: > > > When dns is specified, wireguard runs wg-quick, which runs resolvconf, > > which runs /run/current-system/profile/bin/herd restart, which causes > > shepherd to freeze because I guess it doesn't like being given > > multiple start commands at once. I'm not sure how to fix it. > > What do you mean by =E2=80=9Cfreezing=E2=80=9D? Does =E2=80=98herd statu= s=E2=80=99 and similar commands > block forever? Or is it something else? > > Requests in the Shepherd are currently handled sequentially. So if you > issue several =E2=80=98herd restart=E2=80=99 commands, they=E2=80=99ll be= processed one at a > time. This is usually okay because =E2=80=98start=E2=80=99 commands are = expected to be > quick (just wait for the daemon to write its PID file or similar). > > Thanks, > Ludo=E2=80=99.