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-8700 Lustre <p>On the Power8 platform the llite_loop device is not built but the dkms spec files expect that the llite_loop.ko is present. This causes lustre to fail to install using dkms on Power8 clients.</p> Power8 clients running RHEL7. LU-8700

dkms fails to build lustre on Power8 due to llite_loop missing

Bug Major Resolved Fixed Bruno Faccini James A Simmons Thu, 13 Oct 2016 01:25:25 +0000 Sat, 12 Nov 2016 14:54:03 +0000 Mon, 7 Nov 2016 20:17:52 +0000 Lustre 2.8.0 Lustre 2.9.0 Lustre 2.9.0 0 6 <p>Since llite_loop was already removed in the upstream kernel, it makes sense just to delete it and the test(s) that reference it from master as well.</p> <p>This should be handled in dkms.mkconf during on-target configure step. I will cook a patch to implement it.</p> <p>I understand that llite_lloop.ko is not built for Power8 platform due to PAGE_SIZE == 65536, but I wonder if, due to its specific purpose/usage, it is not just/simply ok to ignore it during DKMS Client builds. On the other hand, in dkms.mkconf, do we need to find the PAGE_SIZE for the Kernel we build against (quite easy to implement) or just determine if it is a Lustre Server/Client build/package (much more easy!!) ??</p> <p>Faccini Bruno (bruno.faccini@intel.com) uploaded a new patch: <a href="http://review.whamcloud.com/23228" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/23228</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-8700" title="dkms fails to build lustre on Power8 due to llite_loop missing" class="issue-link" data-issue-key="LU-8700"><del>LU-8700</del></a> build: dkms only build llite_lloop for servers<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 2380750551c03a312e5abf5b010c3d5213292e70</p> <p>Well in fact seems that I have misunderstood llite_lloop.ko module's features/usages, and its is mostly being used for Clients as it is mainly allowing Clients to use a Lustre file as a block-device (for example as their swap-device for diskless Clients, ...).<br/> So I will modify my Gerrit-change #23228 to allow DKMS to build/create llite_lloop.ko module for/on both Lustre Clients and Servers, but only if their PAGE_SIZE &lt; 65536.</p> <p>Gerrit-change #23228 now simply always ignore llite_lloop.ko module in DKMS.</p> <p>Oleg Drokin (oleg.drokin@intel.com) merged in patch <a href="http://review.whamcloud.com/23228/" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/23228/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-8700" title="dkms fails to build lustre on Power8 due to llite_loop missing" class="issue-link" data-issue-key="LU-8700"><del>LU-8700</del></a> build: dkms do not install llite_lloop<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 21bed01ff234a239e4b044b099d53ba2fe7ca24a</p> <p>Landed for 2.9</p> Related LU-6387 Development Rank 1|hzyrnz: Rank (Obsolete) 9223372036854775807 Severity