I can provide additional details if needed. First, we need to know if this problem is reproducible.. The corruption happened after mounting a redhat 7 filesystem from a redhat 6.0 filesystem. Does this happen for you too? Corruption symptoms included missing directories and replacement of directories with random files. The redhat 6.0 mount utilities displayed error messages (something like the wrong number of flags cleared) as well. The redhat 6.0 filesystem was originally installed on a non-MMX pentium and the redhat 7 was installed on an AMD Duron.
Closing stale bug