I realized that there is no individual bug for the ext4 code *itself* for ext4 in RHEL5.3 as tech preview; we have bugs for needed userspace changes and various VFS bits, but no actual bug for the code itself. For tidiness, here is that bug. The current plan is to provide a backported ext4 codebase from 2.6.26; this is missing delalloc but delalloc is still maturing, and will be a substantially tricky backport, so it's unlikely that we'll include it in this release (it is upstream in 2.6.27).
in kernel-2.6.18-110.el5 You can download this test kernel from http://people.redhat.com/dzickus/el5
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2009-0225.html