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-5310 Lustre <p>server build now breaks in Centos 7/el7. client-only build still works OK.<br/> example errors:</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre> CC [M] /home/bogl/lustre-release/lustre/mdd/mdd_dir.o /home/bogl/lustre-release/lustre/mdd/mdd_dir.c: In function ‘mdd_migrate_create’: /home/bogl/lustre-release/lustre/mdd/mdd_dir.c:3396:26: error: argument to ‘sizeof’ in ‘memset’ call is the same expression as the destination; did you mean to dereference it? [-Werror=sizeof-pointer-memaccess] memset(mgr_ea, 0, sizeof(mgr_ea)); ^ cc1: all warnings being treated as errors make[6]: *** [/home/bogl/lustre-release/lustre/mdd/mdd_dir.o] Error 1 make[5]: *** [/home/bogl/lustre-release/lustre/mdd] Error 2 make[4]: *** [/home/bogl/lustre-release/lustre] Error 2 make[3]: *** [_module_/home/bogl/lustre-release] Error 2 make[3]: Leaving directory `/home/bogl/rb/BUILD/kernel-3.10.0_123.4.2.l0708' make[2]: *** [modules] Error 2 make[2]: Leaving directory `/home/bogl/lustre-release' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/home/bogl/lustre-release' make: *** [all] Error 2 </pre> </div></div> <p>I believe this is due to the recent landing in master of commit de2d5808bd2987f76d2486272e1a9c192ba277d4; <a href="https://jira.whamcloud.com/browse/LU-5223" title="generate DNE stripe directory LMV EA dynamically via readdir" class="issue-link" data-issue-key="LU-5223"><del>LU-5223</del></a> lmv: build master LMV EA dynamically build via readdir</p> <p>It appears the gcc v4.8.2 in el7 is a bit pickier about some things than earlier gcc versions.</p> LU-5310

build error in Centos 7

Bug Minor Resolved Fixed Bob Glossman Bob Glossman Wed, 9 Jul 2014 17:19:10 +0000 Thu, 10 Jul 2014 17:07:49 +0000 Thu, 10 Jul 2014 17:07:49 +0000 Lustre 2.7.0 Lustre 2.6.0 0 4 <p>fwiw, changing the offending source line to:</p> <p> memset(mgr_ea, 0, sizeof(*mgr_ea));</p> <p>fixes the build.</p> <blockquote> <p>It appears the gcc v4.8.2 in el7 is a bit pickier about some things than earlier gcc versions.</p></blockquote> <p>Isn't it always? <img class="emoticon" src="https://jira.whamcloud.com/images/icons/emoticons/smile.png" height="16" width="16" align="absmiddle" alt="" border="0"/> Ultimately though, this is good though.</p> <p>At least it is a nice simple patch.</p> <p><a href="http://review.whamcloud.com/11035" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/11035</a></p> <p>I think the 1 line correction I commented on above &amp; pushed as a patch is functionally correct as well as repairing the build, but I will appreciate good reviews on it to make sure I didn't mess up.</p> <p>Have verified the build failure isn't specific to el7. It will happen with any gcc v4.8.x. I've seen it now with both v4.8.2 and v4.8.3. The fix is good for all cases so far.</p> <p>Patch landed to Master.</p> Related LU-5223 LU-5022 Development Rank 1|hzwqzb: Rank (Obsolete) 14837 Severity