https://jira.whamcloud.com This file is an XML representation of an issue en-us 9.4.14 940014 05-12-2023 https://jira.whamcloud.com/browse/LU-3948 Lustre <p>If a node is running as a lustre server, with either MGS, MDT or OSTs locally then you cannot load the lustre module. This in turn prevents the Lustre client from mounting on a server.</p> <p>This appears to be a module loading order issue, if I load the Lustre module before mounting the targets then everything is fine.</p> <ol> <li>mount -t lustre<br/> /dev/mapper/vg_mgs-mgs on /lustre/mgs type lustre (rw)<br/> /dev/mapper/vg_mdt3_home-mdt3 on /lustre/home/mdt3 type lustre (rw)<br/> /dev/mapper/vg_v-mdt on /lustre/v/mdt type lustre (rw)<br/> /dev/mapper/vg_mdt4_home-mdt4 on /lustre/home/mdt4 type lustre (rw)<br/> /dev/mapper/vg_mdt5_home-mdt5 on /lustre/home/mdt5 type lustre (rw)<br/> /dev/mapper/vg_mdt1_v-mdt1 on /lustre/v/mdt1 type lustre (rw)<br/> /dev/mapper/vg_mdt2_v-mdt2 on /lustre/v/mdt2 type lustre (rw)</li> <li>modprobe lustre<br/> WARNING: Error inserting lov (/lib/modules/2.6.32-358.18.1.el6_lustre.es46.x86_64/updates/kernel/fs/lustre/lov.ko): Operation already in progress<br/> FATAL: Error inserting lustre (/lib/modules/2.6.32-358.18.1.el6_lustre.es46.x86_64/updates/kernel/fs/lustre/lustre.ko): Operation already in progress</li> </ol> <p>From dmesg we have the warning:</p> <p>Sep 13 14:16:58 victrix-mds0 kernel: : LustreError: 18270:0:(lprocfs_status.c:489:lprocfs_register()) Lproc: Attempting to register osc more than once</p> <p>The relevant modules loaded at this time are:</p> <p>mdc 202485 0 <br/> osp 253656 253 <br/> lod 260436 115 <br/> mdt 638025 116 <br/> mgs 287077 1 <br/> mgc 82967 2 mgs<br/> fsfilt_ldiskfs 15114 7 <br/> osd_ldiskfs 417738 230 <br/> lquota 339165 558 mdt,osd_ldiskfs<br/> mdd 357047 117 mdt,osd_ldiskfs<br/> fid 70842 121 mdc,osp,lod,mdt,osd_ldiskfs,mdd<br/> fld 84982 120 lod,mdt,osd_ldiskfs,mdd,fid<br/> ptlrpc 1556389 124 mdc,osp,lod,mdt,mgs,mgc,lquota,fid,fld<br/> obdclass 1292111 580 mdc,osp,lod,mdt,mgs,mgc,osd_ldiskfs,lquota,mdd,fid,fld,ptlrpc<br/> lvfs 16085 15 mdc,osp,lod,mdt,mgs,mgc,fsfilt_ldiskfs,osd_ldiskfs,lquota,mdd,fid,fld,ptlrpc,obdclass<br/> ldiskfs 415574 9 fsfilt_ldiskfs,osd_ldiskfs<br/> ko2iblnd 232685 0 <br/> ksocklnd 175314 1 <br/> lnet 334770 4 ptlrpc,obdclass,ko2iblnd,ksocklnd<br/> libcfs 498217 18 mdc,osp,lod,mdt,mgs,mgc,fsfilt_ldiskfs,osd_ldiskfs,lquota,mdd,fid,fld,ptlrpc,obdclass,lvfs,ko2iblnd,ksocklnd,lnet</p> CentOS 6.4 LU-3948

Unable to load lustre module when the filesystem is running.

Bug Minor Resolved Cannot Reproduce Bob Glossman Shuichi Ihara Fri, 13 Sep 2013 21:19:45 +0000 Tue, 24 Jul 2018 13:46:27 +0000 Tue, 24 Jul 2018 13:46:27 +0000 Lustre 2.4.1 1 5 <p>Bob</p> <p>Could you please look into this one?</p> <p>Thanks</p> <p>Peter</p> <p>In this case the following modules were loaded (in that order) before the mounting of the servers/targets</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>libcfs ksocklnd ko2iblnd ldiskfs ptlrpc lnet </pre> </div></div> <p>The workaround for this is loading the lustre module along with the above modules</p> <p>We are also hitting this bug in 2.4.1, it would be nice to have this one solved.</p> <p>Same in 2.5.1.</p> <p>Has not been reported for many years</p> Development End date Fri, 26 Feb 2016 21:19:45 +0000 Rank 1|hzw2fj: Rank (Obsolete) 10476 Severity Start date Fri, 13 Sep 2013 21:19:45 +0000