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-15956 Lustre <p>Hello!<br/> We wanted to try to deploy a few Lustre 2.15.0 clients on a CentOS 7.9 cluster. While we were able to build the standard lustre/kmod RPMs without issue, we hit the following problem when installing the DKMS RPM.</p> <p>Overview of the dkms rpm build process (from the <a href="https://wiki.lustre.org/Compiling_Lustre#Lustre_Client_.28DKMS_Packages_only.29" class="external-link" target="_blank" rel="nofollow noopener">Compiling Lustre Wiki page</a>)</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>make distclean sh ./autogen.sh  ./configure --enable-dist --disable-server --enable-client make dist rpmbuild -bs --without servers lustre-dkms.spec rpmbuild --rebuild --without servers /path/to/lustre-client-dkms(...).el7.src.rpm </pre> </div></div> <p>The installation of the lustre-client-dkms RPM fails on CentOS 7.9 with the following errors:</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>/var/lib/dkms/lustre-client/2.15.0_1_g0a101e6/build/lustre/ptlrpc/gss/gss_sk_mech.c:946:12: error: redefinition of ‘init_sk_module’ int __init init_sk_module(void) ^ In file included from /var/lib/dkms/lustre-client/2.15.0_1_g0a101e6/build/lustre/ptlrpc/gss/gss_crypto.h:6:0, from /var/lib/dkms/lustre-client/2.15.0_1_g0a101e6/build/lustre/ptlrpc/gss/gss_sk_mech.c:44: /var/lib/dkms/lustre-client/2.15.0_1_g0a101e6/build/lustre/ptlrpc/gss/gss_internal.h:544:19: note: previous definition of ‘init_sk_module’ was here static inline int init_sk_module(void) { return 0; } ^ /var/lib/dkms/lustre-client/2.15.0_1_g0a101e6/build/lustre/ptlrpc/gss/gss_sk_mech.c:957:6: error: redefinition of ‘cleanup_sk_module’ void cleanup_sk_module(void) ^ In file included from /var/lib/dkms/lustre-client/2.15.0_1_g0a101e6/build/lustre/ptlrpc/gss/gss_crypto.h:6:0, from /var/lib/dkms/lustre-client/2.15.0_1_g0a101e6/build/lustre/ptlrpc/gss/gss_sk_mech.c:44: /var/lib/dkms/lustre-client/2.15.0_1_g0a101e6/build/lustre/ptlrpc/gss/gss_internal.h:545:20: note: previous definition of ‘cleanup_sk_module’ was here static inline void cleanup_sk_module(void) { return; } ^ </pre> </div></div> <p> <br/> Attaching dkms' build/ <span class="nobr"><a href="https://jira.whamcloud.com/secure/attachment/44079/44079_make.log" title="make.log attached to LU-15956">make.log^{<img class="rendericon" src="https://jira.whamcloud.com/images/icons/link_attachment_7.gif" height="7" width="7" align="absmiddle" alt="" border="0"/>}</a></span> where you can find the full log of the build error and build/ <span class="nobr"><a href="https://jira.whamcloud.com/secure/attachment/44078/44078_config.log" title="config.log attached to LU-15956">config.log^{<img class="rendericon" src="https://jira.whamcloud.com/images/icons/link_attachment_7.gif" height="7" width="7" align="absmiddle" alt="" border="0"/>}</a></span> (from /var/lib/dkms/lustre-client on the target client where the build fails).</p> <p>GCC version: gcc version 4.8.5 20150623 (Red Hat 4.8.5-44) (GCC) </p> CentOS 7.9 LU-15956

lustre-client dkms build error with redefinition of ‘init_sk_module’

Bug Major Resolved Fixed Sebastien Buisson Stephane Thiell Fri, 17 Jun 2022 18:23:37 +0000 Tue, 12 Jul 2022 23:11:54 +0000 Tue, 12 Jul 2022 23:11:54 +0000 Lustre 2.15.0 Lustre 2.16.0 Lustre 2.15.1 0 5 <p>FYI we found a workaround for this: disable gss and thus avoid the compilation error by removing the <tt>krb5-devel</tt> package from the node:</p> <p>Indeed, there is a check in <tt>lustre-dkms_pre-build.sh</tt>:</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>rpm -qa | grep krb5-devel &gt;/dev/null if [ $? == 0 ] ; then         GSS="--enable-gss" else         GSS="--disable-gss" fi </pre> </div></div> <p>It's one way we found to disable gss support for DKMS build. Then, the lustre client dkms rpm does work.</p> <p>Stephane</p> <p>Hats off to you for again being among the first to try a new major release. I think that this might be as simple as Centos7.9 is not a supported distro for clients because of the encryption feature</p> <p>Sebastien</p> <p>Could you please confirm/deny?</p> <p>Thanks</p> <p>Peter</p> <p>"Sebastien Buisson &lt;sbuisson@ddn.com&gt;" uploaded a new patch: <a href="https://review.whamcloud.com/47681" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/47681</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15956" title="lustre-client dkms build error with redefinition of ‘init_sk_module’" class="issue-link" data-issue-key="LU-15956"><del>LU-15956</del></a> gss: allow build without ssk<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 06bd93125087d55aca9fe63bbca5553dd9e85748</p> <p>This looks like an issue with the GSS build system.</p> <p>Stephane, could you please give a try to <a href="https://review.whamcloud.com/47681" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/47681</a>, and mark review +1 if this works for you?</p> <p>Thanks!</p> <p>Hi Sebastien,</p> <p>With your patch, I cannot reproduce the issue anymore, even with krb5-devel installed. Thanks!</p> <p>"Jian Yu &lt;yujian@whamcloud.com&gt;" uploaded a new patch: <a href="https://review.whamcloud.com/47781" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/47781</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15956" title="lustre-client dkms build error with redefinition of ‘init_sk_module’" class="issue-link" data-issue-key="LU-15956"><del>LU-15956</del></a> gss: allow build without ssk<br/> Project: fs/lustre-release<br/> Branch: b2_15<br/> Current Patch Set: 1<br/> Commit: 121b9aef3026f42d6093c9ae50981df84d47a2f9</p> <p>"Oleg Drokin &lt;green@whamcloud.com&gt;" merged in patch <a href="https://review.whamcloud.com/47681/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/47681/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15956" title="lustre-client dkms build error with redefinition of ‘init_sk_module’" class="issue-link" data-issue-key="LU-15956"><del>LU-15956</del></a> gss: allow build without ssk<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 2e061e88a44db70e4446be567243a38a76ed5370</p> <p>"Oleg Drokin &lt;green@whamcloud.com&gt;" merged in patch <a href="https://review.whamcloud.com/47781/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/47781/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15956" title="lustre-client dkms build error with redefinition of ‘init_sk_module’" class="issue-link" data-issue-key="LU-15956"><del>LU-15956</del></a> gss: allow build without ssk<br/> Project: fs/lustre-release<br/> Branch: b2_15<br/> Current Patch Set: <br/> Commit: e1906ae3dbb6b3291272fd8ba0ecbb9fd2425fbb</p> Development Rank 1|i02sgv: Rank (Obsolete) 9223372036854775807 Severity