Red Hat Bugzilla – Bug 156780
mount -o remount,acl doesn't enable ACLs
Last modified: 2010-01-11 22:04:44 EST
From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.6) Gecko/20050323 Firefox/1.0.2 Fedora/1.0.2-1.3.1 Description of problem: Other nodes have mounted a GFS filesystem with -o acl. ACLs work for the nodes that have mounted the filesystem with acl from the beginning. On a node where ACLs were not activated on the initial mount, a remount does not enable the ACLS. Version-Release number of selected component (if applicable): GFS-modules-smp-6.0.2-26 How reproducible: Always Steps to Reproduce: 1. mount -t gfs /dev/pool/bla /mnt/bla 2. mount -o remount,acl /mnt/bla 3. Actual Results: ACLs are reported by mount and ls, however if I try to access the file I get "Permission Denied" Expected Results: An open file :) Additional info: umount /dev/pool/bla mount -t gfs -o acl /dev/pool/bla /mnt/bla works.
This is fixed in RHEL3 and RHEL4 now. gfs wasn't looking at the remount options. In RHEL3, once you enable acls. you cannot use -o remount to disable them. This is true for all filesystems, as far as I can tell. In RHEL4, using -o remount (without the 'acl' option) will disable ACLs if they were previously enabled. Again this is true for other filesystems as well.
fix verified in GFS 2.6.9-40.0 (built Aug 31 2005 14:04:50)