Red Hat Bugzilla – Bug 7100
File corruption with filesystems mounted from IBM AIX 4.2.1
Last modified: 2008-05-01 11:37:53 EDT
While compiling in a directory exported from an IBM AIX 4.2.1 server,
file corruption has been detected in a predictable way for the object
code generated by gcc. The problem does not present itself when
the directory is exported by a linux, Digital Unix (4.01E) or Solaris
(2.6+security fixes). Likewise, the problem is not visible when the
kernel being used is a 2.2.10.
It seems that this form of file corruption does not happen when simply
copying a file from the exported filesystem onto itself.
Assigned to dledford
This sounds like a known AIX NFS server bug. From memory, AIX cannot deal with
padded NFS packets, assuming that the NFS packet data length is equal to the IP
packet length. See the report at
and the work-around at
There are a couple of NFS patches referenced at
but there is no guarantee that they will help.