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Thu, 12 Aug 2021 11:09:57 +0000 (UTC) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 43A4B13C44; Thu, 12 Aug 2021 11:09:57 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id cXZNDoUBFWFiVQAAMHmgww (envelope-from ); Thu, 12 Aug 2021 11:09:57 +0000 Message-ID: <65c25c39b00a37f88403d3a32dfdc154c1b8ec3b.camel@suse.com> From: Martin Wilck To: Benjamin Marzinski , lixiaokeng Date: Thu, 12 Aug 2021 13:09:56 +0200 In-Reply-To: <20210726162827.GH3087@octiron.msp.redhat.com> References: <37767722-8e6c-4176-d234-87134c21cd4c@huawei.com> <20210722214253.GC3087@octiron.msp.redhat.com> <85cb30a7-a873-b33d-4105-6e3e9675f105@huawei.com> <20210723165603.GE3087@octiron.msp.redhat.com> <02cba2a5-3fcf-bca9-d887-f8a3c0300582@huawei.com> <20210726162827.GH3087@octiron.msp.redhat.com> User-Agent: Evolution 3.40.3 MIME-Version: 1.0 X-Mimecast-Impersonation-Protect: Policy=CLT - Impersonation Protection Definition; Similar Internal Domain=false; Similar Monitored External Domain=false; Custom External Domain=false; Mimecast External Domain=false; Newly Observed Domain=false; Internal User Name=false; Custom Display Name List=false; Reply-to Address Mismatch=false; Targeted Threat Dictionary=false; Mimecast Threat Dictionary=false; Custom Threat Dictionary=false X-Scanned-By: MIMEDefang 2.78 on 10.11.54.3 X-MIME-Autoconverted: from quoted-printable to 8bit by lists01.pubmisc.prod.ext.phx2.redhat.com id 17CBA6wJ017940 X-loop: dm-devel@redhat.com Cc: dm-devel, list , "liuzhiqiang \(I\)" , linfeilong Subject: Re: [dm-devel] [Question] multipathd.service start failed when /var/run isn't mount X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=dm-devel-bounces@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: quoted-printable On Mo, 2021-07-26 at 11:28 -0500, Benjamin Marzinski wrote: > On Mon, Jul 26, 2021 at 08:22:49PM +0800, lixiaokeng wrote: > >=20 > > > > After sdb mounted to /var, we can start multipathd service > > > > successfully. > > >=20 > > > But when the binaries were compiled, if /var/run existed and was > > > a > > > symlink in your build environment, then RUN should equal "run", > > > and > > > multipath should should be using /run instead of /var/run, right? > > >=20 > > > This is why I asked what multipath packages are you using. > > >=20 > > This problem is found in 0.7.7. >=20 > Sorry. I wasn't very clear with what I was asking for.=A0 Unless I'm > missing something here, if multipathd is trying to use /var/run, that > means that when the multipathd binary was compiled, it was compiled > on a > machine where /var/run was not a symlink.=20 >=20 > So, I'm wondering where your multipathd binary got compiled. Are you > using a packaged version from a distribution like RHEL, SLES, Fedora, > Ubuntu, etc? Did you compile it yourself? >=20 > When I run multipathd under strace, I can see: >=20 > openat(AT_FDCWD, "/run/multipathd.pid", O_WRONLY|O_CREAT, 0644) =3D 3 >=20 > The multipathd binary I'm using was compiled on a machine where > /var/run > is a symlink to /run, so multipathd directly uses /run, instead of > using > /var/run. I'm assuming that whatever machine your multipathd binary > was > compiled on, /var/run was a directory. Do you know if that's > possible? Ack. Lixiaokeng, can you answer Ben's question? Regards, Martin -- dm-devel mailing list dm-devel@redhat.com https://listman.redhat.com/mailman/listinfo/dm-devel