Red Hat GFS 6.1 RHEL4 U2 Release Notes Copyright(c) 2005 Red Hat, Inc. ------------------------------------------------------- November 3, 2005 Introduction The following topics are covered in this document: o Changes to GFS 6.1 o Important Notes o Bugs Fixed in the Release o Related Documentation Changes to GFS 6.1 for RHEL4 U2 This release supports iSCSI and multipath iSCSI. That is, device mapper multipath (dm-multipath) can use iSCSI. This release prevents the activation of snapshots in a clustered volume group. Important Notes Multipath GNBD is not available with this and previous releases of Red Hat GFS 6.1. That is, device mapper multipath (dm-multipath) cannot use GNBD. GNBD without multipath *is* available. Bugs Fixed in the Release o 160525 -- GFS fsck [gfs_fsck] not handling extended attributes correctly o 160835 -- fsck [gfs_fsck] erroneously reporting bitmap corruption when converting bits from free_metadata -> free_data o 162709 -- gfs_fsck fails to complete, can't mount the device o 161808 -- Nodes don't wait for first mounter to finish recovery [This could potentially allow a second node to mount a GFS file system while the journal was being replayed.] o 164324 -- gfs oops in gfs_wipe_buffers [This could allow depend_sync_old to corrupt the resource group descriptor structure if it took too long to sync dependent inodes back to disk.] o 166701 -- Kernel panic with NFS traffic being moved between nodes using service IP address [This caused a kernel panic in rare cases when using NFS on top of GFS.] For more information about bugs fixed in this release and other information about the release, refer to the following errata on RHN (https://rhn.redhat.com/): o RHBA-2005:740 -- GFS-kernel bug fix update o RHBA-2005:741 -- GFS bug fix update o RHBA-2005:776 -- gnbd-kernel bug fix update o RHBA-2005:779 -- gnbd bug fix update o RHBA-2005:781 -- lvm2-cluster bug fix update Related Documentation The following related documentation is available at http://www.redhat.com/docs/manuals/csgfs/: o Red Hat GFS 6.1 Administrator's Guide o Release notes for Red Hat GFS 6.1 o Red Hat Cluster Suite Configuring and Managing a Cluster (for Red Hat Cluster Suite 4) o Release notes for Red Hat Cluster Suite 4