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-2625 Lustre <p>lustre_rmmod sometimes returns errors that should not be displayed to end user.</p> <p>When lustre modules are already all unloaded</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre># lustre_rmmod open /proc/sys/lnet/dump_kernel failed: No such file or directory open(dump_kernel) failed: No such file or directory </pre> </div></div> <p>In a lustre router configuration, when loaded lustre modules are only: libcfs, lnet and lnds</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre># lustre_rmmod error: dl: No such file or directory opening /proc/fs/lustre/devices opening /dev/obd failed: No such device hint: the kernel modules may not be loaded Error getting device list: No such device: check dmesg. </pre> </div></div> <p>When executed from a non-root user</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>$ lustre_rmmod error: dl: No such file or directory opening /proc/fs/lustre/devices opening /dev/obd failed: Permission denied hint: the kernel modules may not be loaded Error getting device list: Permission denied: check dmesg. open /proc/sys/lnet/dump_kernel failed: Permission denied open(dump_kernel) failed: Permission denied Modules still loaded: libcfs/libcfs/libcfs.o </pre> </div></div> lustre 2.3.58<br/> redhat 6.3 LU-2625

lustre_rmmod sometimes returns unexpected errors

Bug Minor Resolved Fixed Bruno Faccini Gregoire Pichon Wed, 16 Jan 2013 07:48:39 +0000 Wed, 13 Feb 2013 11:13:10 +0000 Wed, 13 Feb 2013 11:13:10 +0000 Lustre 2.4.0 Lustre 2.1.4 Lustre 2.4.0 0 5 <p>Hello again Gregoire !!<br/> Thank's for the report will give you an update soon.<br/> Bye.</p> <p>I have posted a patch for the first two reported problems: <a href="http://review.whamcloud.com/5040" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/5040</a></p> <p>For the non-root user execution, I am not sure how to proceed and if it should be prevented at all.<br/> The command /usr/sbin/lustre_rmmod permissions could be changed to 0744 (instead of 0755).<br/> Or this could be checked directly from the script itself, like this.</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre># check user is root if [ $(id -u) -ne 0 ]; then echo "Error: $0 must be executed as root user" exit 1 fi </pre> </div></div> <p>Thank's for the patch coverring the first cases you reported.<br/> Don't you think we also need to print an informative message in case nothing has to be done (ie, no modules to be unloaded at all, and in your version of "lustre_rmmod" when unload_dep_module() will not be called) ?<br/> About the non-root execution, I think it is a more generic packaging issue which should be addressed apart, do you agree ??</p> Development Epic modules Rank 1|hzvffj: Rank (Obsolete) 6145 Severity