From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp12.migadu.com ([2001:41d0:8:6d80::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms5.migadu.com with LMTPS id UDdiOdFCjGJuXAAAbAwnHQ (envelope-from ) for ; Tue, 24 May 2022 04:28:34 +0200 Received: from aspmx1.migadu.com ([2001:41d0:8:6d80::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp12.migadu.com with LMTPS id UBU+OdFCjGJNDgAAauVa8A (envelope-from ) for ; Tue, 24 May 2022 04:28:33 +0200 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 96D73228D0 for ; Tue, 24 May 2022 04:28:32 +0200 (CEST) Received: from localhost ([::1]:56696 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ntKHf-00056k-AM for larch@yhetil.org; Mon, 23 May 2022 22:28:31 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:36392) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ntKHC-0004Xz-6p for bug-guix@gnu.org; Mon, 23 May 2022 22:28:03 -0400 Received: from debbugs.gnu.org ([209.51.188.43]:56657) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1ntKHB-0007Mw-TM for bug-guix@gnu.org; Mon, 23 May 2022 22:28:01 -0400 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1ntKHB-0003Fk-Pp for bug-guix@gnu.org; Mon, 23 May 2022 22:28:01 -0400 X-Loop: help-debbugs@gnu.org Subject: bug#55444: elogind startup race between shepherd and dbus-daemon Resent-From: Maxim Cournoyer Original-Sender: "Debbugs-submit" Resent-CC: bug-guix@gnu.org Resent-Date: Tue, 24 May 2022 02:28:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 55444 X-GNU-PR-Package: guix X-GNU-PR-Keywords: To: Ludovic =?UTF-8?Q?Court=C3=A8s?= Cc: 55444@debbugs.gnu.org Received: via spool by 55444-submit@debbugs.gnu.org id=B55444.165335925512467 (code B ref 55444); Tue, 24 May 2022 02:28:01 +0000 Received: (at 55444) by debbugs.gnu.org; 24 May 2022 02:27:35 +0000 Received: from localhost ([127.0.0.1]:50554 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ntKGf-0003Et-Qz for submit@debbugs.gnu.org; Mon, 23 May 2022 22:27:35 -0400 Received: from mail-qv1-f45.google.com ([209.85.219.45]:33696) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ntKGe-0003Eg-2A for 55444@debbugs.gnu.org; Mon, 23 May 2022 22:27:28 -0400 Received: by mail-qv1-f45.google.com with SMTP id j3so13444968qvn.0 for <55444@debbugs.gnu.org>; Mon, 23 May 2022 19:27:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:references:date:in-reply-to:message-id :user-agent:mime-version:content-transfer-encoding; bh=1tLRQpoc992jlCtVz7ebfrUTJrXqky181uW6QKe65AE=; b=Z113bcH4fOZm34AlmANKjZFFjwJoMZgprPfM1npQpXBYjq2OeLRFomT7lGyLZjCOoD oMpflo7hBOMb3u7EvS15uqAkzt6+Mms6vz0CB07eYwFnEGKbFAE0wnT9CP5PULYllOy1 P9U9Vh4IEOi2hYSUDmDURMxfg0JU3p0i0lAO24v8FHKsi1gp5VWSG0JrEj/qIAxm7Nwa TU2P+UJoWG/nrEXB0MgjbWwoWz/PLXKH2LTGSU/aHzTAd1PTZjawgGEWbkFNDBDRCN88 O8cg0jQVyM9i5vY/l5ygFR2JDdMg0B6nyFxEJ8KWhuejUC1/9NJgEx0JwvPV1MljtNz6 0YKw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:references:date:in-reply-to :message-id:user-agent:mime-version:content-transfer-encoding; bh=1tLRQpoc992jlCtVz7ebfrUTJrXqky181uW6QKe65AE=; b=FuM4D3VWXbuRSvJjsC4zh8v4+N2OntAXfTT82RTcb2p5+tczrFflNrRIewuwe8of1o 60mqFpMf6JNFCjgZN+cVa766pJSWUl3KrNnGc0qAbZw8SHWXeYrn5E0OsaikBDnp7uxw Um0RPCxdJjv78c2m1wBc2kkzO12SIY1Y+0e/KXJdAKhtdxwgpM5ClYwJqMyLnz5ZTCr1 CY96RQ448o6bhwNXoQ/MS3eAGLHoxatFpl9FxjZyjVxjGOvNO6qb6w8bzA+5Yw30H9BX /nTLFCwRMFSqhs841fAGZXSopd1AExSygdZh+Neb1bYkzkLBxwVtyfO2kTFY/wSsI0Pq Mw6A== X-Gm-Message-State: AOAM532zC5bEtIpe5ygldgyuh45V+LUydUjb5ymjwig1wNqZS7U46F5s gxVaIHbcfN4X81/gmVUSPKOF8IjRBx+i2Q== X-Google-Smtp-Source: ABdhPJx5sUvnig41MUJdlpc7C1yWgOtQF7cbv0VlECEV6tmpRVewvtuxMaZx9en4bPFjEpCGZykD9w== X-Received: by 2002:a0c:f0c3:0:b0:461:d824:c66e with SMTP id d3-20020a0cf0c3000000b00461d824c66emr19632296qvl.111.1653359242065; Mon, 23 May 2022 19:27:22 -0700 (PDT) Received: from hurd (dsl-157-33.b2b2c.ca. [66.158.157.33]) by smtp.gmail.com with ESMTPSA id e18-20020ac84b52000000b002f93e856eccsm1157904qts.32.2022.05.23.19.27.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 23 May 2022 19:27:21 -0700 (PDT) From: Maxim Cournoyer References: <877d6lc28o.fsf@inria.fr> Date: Mon, 23 May 2022 22:27:20 -0400 In-Reply-To: <877d6lc28o.fsf@inria.fr> ("Ludovic =?UTF-8?Q?Court=C3=A8s?="'s message of "Mon, 16 May 2022 10:26:15 +0200") Message-ID: <87y1yr4qd3.fsf@gmail.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; 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: , Errors-To: bug-guix-bounces+larch=yhetil.org@gnu.org Sender: "bug-Guix" X-Migadu-Flow: FLOW_IN X-Migadu-To: larch@yhetil.org X-Migadu-Country: US ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1653359312; 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=1tLRQpoc992jlCtVz7ebfrUTJrXqky181uW6QKe65AE=; b=QeHGqKSaf6C4ngRnWgYFfFZVGO+kh1zRKKqHmFdhvP6w+YiWWZnydVEXGkIRoJAlon1eWQ LldEnjITJeDZ7nKbDR7R6y9nd+ohTwZKae8j00uC17uRl1utftzEpnRO7goJKt1D8dJEld qIHlwqf7J9PTDs585uhlgZwqZAZ9JYMS4rbsY3kSo09YKKEm+QfR1agEG390YEr7yGcZ80 OATmYl287BSNVgJIoL47UMH1cJ5xd88Aap1WHQzjwGuw0EAxdSCqh+8/zgR3uyOc+umGy0 fP3pqS0r4TBCZ5r8lM611m/SQdMJcuUtYOpajHN158PcWqePK/98RQMbS33g5g== ARC-Seal: i=1; s=key1; d=yhetil.org; t=1653359312; a=rsa-sha256; cv=none; b=c2Up9hnVM6hFC0XJBnXpOCQFCK8ZiBTMWzJV6f+pN/f1tu/BKxO+PSwn8Fpdao+supkL6L 80KafDX1lDbCHen9sV7rOWylCvk0WQsuxBMQ7SlZJNP2uVScEgG3yHwH4bmEC828iFscCF UHbQ89Lc1dqmmf70LGaY8L9avRuz42oYAjQAmdiMzfSg41pDKsnNondqNcZaLIId+iBlo6 r53OuMke//shxbdD0UF7Sc5TVKUBBMffz6TZLB7PNxHuBQegofBfUDMrB3Jo4Mti1JU4Qn rgB1QhDfAAKlwxXwdc7fyiM4QYJHtZ2U0fJs8y6zhKdHDIJtPE3buQgwOB0qfQ== ARC-Authentication-Results: i=1; aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=gmail.com header.s=20210112 header.b=Z113bcH4; dmarc=fail reason="SPF not aligned (relaxed)" header.from=gmail.com (policy=none); 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-Spam-Score: 6.45 Authentication-Results: aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=gmail.com header.s=20210112 header.b=Z113bcH4; dmarc=fail reason="SPF not aligned (relaxed)" header.from=gmail.com (policy=none); 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: 96D73228D0 X-Spam-Score: 6.45 X-Migadu-Scanner: scn0.migadu.com X-TUID: edgRZEjzeVdU Hi, Ludovic Court=C3=A8s writes: > Hello! > > Currently (40a729a0e6f1d660b942241416c1e2c567616d4d), shepherd and > dbus-daemon compete to start elogind: shepherd tries to start it > eagerly, and dbus-daemon starts it on-demand upon bus activation. > > Sometimes dbus-daemon wins, and thus shepherd tries a few times to start > it anyway, leading to the infamous: > > elogind is already running as PID 123 Do we have a system test that sometimes reproduce it, or at least the above message? I have some branch where I introduce some D-Bus synchronization primitives I had started to fix https://issues.guix.gnu.org/issue/52051, which ended up being fixed differently (bumping the timeout value); perhaps it could be of use here. Thanks, Maxim