Bug 7100 - File corruption with filesystems mounted from IBM AIX 4.2.1
File corruption with filesystems mounted from IBM AIX 4.2.1
Product: Red Hat Linux
Classification: Retired
Component: kernel (Show other bugs)
i386 Linux
medium Severity high
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Assigned To: Michael K. Johnson
Depends On:
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Reported: 1999-11-18 10:02 EST by Luca Giuzzi
Modified: 2008-05-01 11:37 EDT (History)
2 users (show)

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Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2000-02-08 09:53:31 EST
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Description Luca Giuzzi 1999-11-18 10:02:25 EST
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.
Comment 1 Cristian Gafton 2000-01-04 17:26:59 EST
Assigned to dledford
Comment 2 Stephen Tweedie 2000-02-08 09:53:59 EST
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.

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