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-784 Lustre <p>Named pipes (FIFOs) and sockets in a Lustre filesystem can no longer be<br/> accessed or unlinked if Posix-ACLs are set. This can be easily reproduced:</p> <p>% mknod /lustre/test.pipe p<br/> % setfacl -m g:testgroup:rx /lustre/test.pipe</p> <p>Subsequently, all of the following operations result in EOPNOTSUPP, leaving an<br/> inode that cannot be removed.</p> <p>% stat /lustre/test.pipe<br/> % unlink /lustre/test.pipe<br/> % setfacl -b /lustre/test.pipe<br/> % setfattr -x system.posix_acl_access testpipe<br/> % getfacl /lustre/test.pipe<br/> % getfattr -m '.*' /lustre/test.pipe</p> <p>For each of these commands, syslog lists an error message like:</p> <p> LustreError: 28069:0:(mdc_request.c:489:mdc_unpack_acl()) convert xattr to acl: -95</p> <p>The ACLs on the test file work fine with getfacl when mounting the MDT as<br/> ldiskfs, so they are stored correctly. Looking at mdc_unpack_acl() and<br/> posix_acl_from_xattr(), the EOPNOTSUPP means they get garbled when they're<br/> read back and sent to the client, though.</p> Tested on live systems with Lustre 1.8.5, RHEL4 and RHEL5 clients. Problem could be trivially reproduced in a VM running CentOS5 with Lustre 1.8.6-wc1. LU-784

Cannot access named pipes or sockets with Posix-ACLs

Bug Minor Resolved Won't Fix Sarah Liu Daniel Kobras Fri, 21 Oct 2011 13:13:42 +0000 Wed, 16 Jan 2013 08:16:26 +0000 Wed, 24 Oct 2012 18:56:28 +0000 Lustre 1.8.6 0 5 <p>Daniel</p> <p>To be clear - is this a regression from 1.8.5 or is this same behaviour also seen in 1.8.5? I am clear that it manifests in 1.8.6-wc1.</p> <p>Thanks</p> <p>Peter</p> <p>Sarah</p> <p>Could you please try and reproduce this?</p> <p>Thanks</p> <p>Peter</p> <p>Sorry, bad wording: The problem occurs in (at least) 1.8.5 and 1.8.6-wc1. I haven't tested with any other Lustre version.</p> <p>Thanks for clarifying Daniel.</p> <p>I tried this on 2.3.0, both server and client are RHEL6, cannot reproduce it.</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>root@client-4 ~]# mount /dev/sda1 on / type ext3 (rw) proc on /proc type proc (rw) sysfs on /sys type sysfs (rw) devpts on /dev/pts type devpts (rw,gid=5,mode=620) tmpfs on /dev/shm type tmpfs (rw) none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw) sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw) nfsd on /proc/fs/nfsd type nfsd (rw) fat-amd-1@tcp:/lustre on /mnt/lustre type lustre (rw,user_xattr,acl,flock) [root@client-4 ~]# rpm -qa|grep lustre lustre-client-modules-2.3.0-2.6.32_279.5.1.el6.x86_64.x86_64 lustre-client-2.3.0-2.6.32_279.5.1.el6.x86_64.x86_64 lustre-client-tests-2.3.0-2.6.32_279.5.1.el6.x86_64.x86_64 [root@client-4 ~]# [root@client-4 ~]# mknod /mnt/lustre/test.pipe p [root@client-4 ~]# setfacl -m g:quota_usr:rx /mnt/lustre/test.pipe [root@client-4 ~]# stat /mnt/lustre/test.pipe File: `/mnt/lustre/test.pipe' Size: 0 Blocks: 0 IO Block: 4096 fifo Device: 2c54f966h/743766374d Inode: 144115205255725060 Links: 1 Access: (0654/prw-r-xr--) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2012-10-24 13:52:38.000000000 -0700 Modify: 2012-10-24 13:52:38.000000000 -0700 Change: 2012-10-24 13:52:58.000000000 -0700 [root@client-4 ~]# unlink /mnt/lustre/test.pipe [root@client-4 ~]# mknod /mnt/lustre/test.pipe p [root@client-4 ~]# setfacl -m g:quota_usr:rx /mnt/lustre/test.pipe [root@client-4 ~]# setfacl -b /mnt/lustre/test.pipe [root@client-4 ~]# setfattr -x system.posix_acl_access /mnt/lustre/test.pipe [root@client-4 ~]# getfacl /mnt/lustre/test.pipe getfacl: Removing leading '/' from absolute path names # file: mnt/lustre/test.pipe # owner: root # group: root user::rw- group::r-- other::r-- [root@client-4 ~]# getfattr -m '.*' /mnt/lustre/test.pipe getfattr: Removing leading '/' from absolute path names # file: mnt/lustre/test.pipe trusted.link trusted.lma [root@client-4 ~]# </pre> </div></div> <p>While on 1.8.6-wc1, it can be reproduced:</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>[root@client-4 ~]# stat /mnt/lustre/test.pipe LustreError: 3751:0:(mdc_request.c:489:mdc_unpack_acl()) convert xattr to acl: -95 stat: cannot stat `/mnt/lustre/test.pipe': Operation not supported [root@client-4 ~]# rpm -qa|grep lustre lustre-client-1.8.6-wc1_2.6.18_238.12.1.el5 lustre-client-modules-1.8.6-wc1_2.6.18_238.12.1.el5 lustre-client-tests-1.8.6-wc1_2.6.18_238.12.1.el5 [root@client-4 ~]# [root@client-4 ~]# mount /dev/sda1 on / type ext3 (rw) proc on /proc type proc (rw) sysfs on /sys type sysfs (rw) devpts on /dev/pts type devpts (rw,gid=5,mode=620) tmpfs on /dev/shm type tmpfs (rw) none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw) sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw) nfsd on /proc/fs/nfsd type nfsd (rw) fat-amd-1@tcp:/lustre on /mnt/lustre type lustre (rw,user_xattr,acl,flock) </pre> </div></div> <p>I am going to try it on 1.8.8 and will keep you updated.</p> <p>1.8.8 also has this issue, I tested with both server and client running RHEL5</p> <p><span class="error">&#91;root@client-4 ~&#93;</span># mknod /mnt/lustre/test.pipe p<br/> <span class="error">&#91;root@client-4 ~&#93;</span># setfacl -m g:quota_usr:rx /mnt/lustre/test.pipe <br/> <span class="error">&#91;root@client-4 ~&#93;</span># stat /mnt/lustre/teLustreError: 3525:0:(mdc_request.c:489:mdc_unpack_acl()) convert xattr to acl: -95<br/> st.pipe <br/> LustreError: 3671:0:(mdc_request.c:489:mdc_unpack_acl()) convert xattr to acl: -95<br/> stat: cannot stat `/mnt/lustre/test.pipe': Operation not supported<br/> <span class="error">&#91;root@client-4 ~&#93;</span># rpm -qa|grep lustre<br/> lustre-client-1.8.8-wc1_2.6.18_308.4.1.el5_gbc88c4c<br/> lustre-client-modules-1.8.8-wc1_2.6.18_308.4.1.el5_gbc88c4c<br/> lustre-client-tests-1.8.8-wc1_2.6.18_308.4.1.el5_gbc88c4c</p> <p>Thanks Sarah! Daniel, if you have not already it sounds like upgrading to a more current release is the way forward</p> Duplicate LU-2518 Development Rank 1|hzvhtz: Rank (Obsolete) 6538 Severity