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-3111 Lustre <p>As seen from oprofile on Hyperion. </p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>PU: Intel Sandy Bridge microarchitecture, speed 1200 MHz (estimated) Counted CPU_CLK_UNHALTED events (Clock cycles when not halted) with a unit mask of 0x00 (No unit mask) count 100000 samples % app name symbol name 20100 17.5058 zfs /zfs 15546 13.5396 libcfs /libcfs 9569 8.3340 zcommon /zcommon 7959 6.9318 vmlinux-2.6.32-279.19.1.el6_lustre.x86_64 intel_idle 5582 4.8616 spl /spl 4149 3.6135 vmlinux-2.6.32-279.19.1.el6_lustre.x86_64 memmove 3792 3.3026 vmlinux-2.6.32-279.19.1.el6_lustre.x86_64 mutex_lock 2835 2.4691 vmlinux-2.6.32-279.19.1.el6_lustre.x86_64 mutex_unlock 1954 1.7018 dm_mod /dm_mod </pre> </div></div> <p>There is a vmlinux (from the kernel-debuginfo package) but it is not clear where the rest of the symbols are.</p> <p>Everything we build should have debuginfo package that works with standard tools. </p> <p>In my local system I have pointed to source trees but on a far far away server this will be quite painful. It should be as simple as just installing the correct packages installed. </p> <p>The build that is currently deployed on Hyperion is, lustre-master-1340</p> <p>I didn't see any zfs related debug info packages. </p> From the lbuild system as provided on the build server. LU-3111

Build: Debug symbols needed for the whole stack

Bug Major Resolved Not a Bug WC Triage Keith Mannthey Fri, 5 Apr 2013 03:58:31 +0000 Fri, 5 Apr 2013 16:50:24 +0000 Fri, 5 Apr 2013 16:50:24 +0000 Lustre 2.4.0 0 3 <p>oprofile should be able to get symbol from regular modules (.ko). it seems oprofile couldn't find them.</p> <p>we used to package lustre module rpms with debug symbols by default, but then this patch: <a href="http://review.whamcloud.com/4491" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/4491</a> suppsedly enabled creation of lustre debuginfo rpm that you need installed.</p> <p>As for the zfs - no idea.</p> <p>Sorry moved a little fast yesterday. </p> <p>opreport --session-dir=(right spot) -l -p /lib/modules/`uname -r` </p> <p>Did the trick. </p> <p>User error. </p> Development Rank 1|hzvn5r: Rank (Obsolete) 7562 Severity