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-17437 Lustre <p>I am trying to access a file that has an ACL as root and I cannot open it:</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"> <span class="code-comment">// -rw-rw-r--+ 1 giavitto ultrasat 22838 Jan  9 13:48 /lustre/fs24/group/ultrasat/first_light/udp_packets/sn204_shooting_v1-3_15s_pinhole_natural_light_1_with_2_zero_exposures_and_hotfixes_misalignment/2024-01-09T12-43-13/frame_009_image_0.png </span># getfacl <span class="code-quote">'/lustre/fs24/group/ultrasat/first_light/udp_packets/sn204_shooting_v1-3_15s_pinhole_natural_light_1_with_2_zero_exposures_and_hotfixes_misalignment/2024-01-09T12-43-13/frame_009_image_0.png'</span>  getfacl: Removing leading <span class="code-quote">'/'</span> from absolute path names # file: lustre/fs24/group/ultrasat/first_light/udp_packets/sn204_shooting_v1-3_15s_pinhole_natural_light_1_with_2_zero_exposures_and_hotfixes_misalignment/2024-01-09T12-43-13/frame_009_image_0.png # owner: giavitto # group: ultrasat user::rw- group::rwx                      #effective:rw- group:ultrasat:rwx              #effective:rw- mask::rw- other::r-- </pre> </div></div> <p>When I try to copy the file, I get the error</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"> cp: cannot open <span class="code-quote">'/lustre/fs24/group/ultrasat/first_light/udp_packets/sn204_shooting_v1-3_15s_pinhole_natural_light_1_with_2_zero_exposures_and_hotfixes_misalignment/2024-01-09T12-43-13/frame_009_image_0.png'</span> <span class="code-keyword">for</span> reading: Operation not supported</pre> </div></div> <p>and in the syslog this message:</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"> LustreError: 2481150:0:(mdc_acl.c:50:mdc_unpack_acl()) convert xattr to acl: -95</pre> </div></div> Alma Linux 9.3 with Lustre 2.15.4 on the client <br/> Scientific Linux 7.9 with Lustre 2.12.8 on the server LU-17437

convert xattr to acl problem

Bug Minor Open Unresolved WC Triage Götz Waschk Wed, 17 Jan 2024 14:55:02 +0000 Fri, 19 Jan 2024 08:10:17 +0000 Lustre 2.15.4 0 3 <p>Are you able to reproduce this problem by creating a new file with these properties or is it unique to this existing file?</p> <p>I haven't managed to create new files with the same problem. There are several files with this problem in the same directory, they all have the same ACL, but some are readable and some are not.</p> <p>Deleting the ACL with setfacl -b makes the files readable again.</p> <p>You could grab the binary ACL xattr from the MDT inodes with debugfs, and then compare them? Alternately, run the test with full debug (preferably on the MDS with a local mountpoint, so that you get the full set of logs:</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre># lctl set_param debug=all # lctl clear; cp ...; lctl dk </pre> </div></div> <p>and then review the logs to see where the "<tt>&#45;95</tt>" error is coming from.</p> <p>I recall some issues with inheriting very large ACLs, but that doesn't appear to be the case here.</p> <p>Unfortunately, I have removed the ACLs from that directory so the users could access their files and I haven't found any other inaccessible files on this file system.</p> Development Rank 1|i047xb: Rank (Obsolete) 9223372036854775807 Severity