Messages in this thread | | | Date | Tue, 8 Jun 2004 10:44:22 -0500 | From | Andy <> | Subject | NFS corruption (duplicated data) |
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I really don't understand what could be causing this, but it happens on several machine and at least on kernels 2.4.22, 2.4.25, 2.4.26. NFS v3 : hard, udp, rsize=8192,wsize=8192 local filesystems are XFS
Trond, this is data corruption not dropped packets so the protocol being UDP is not the problem.
Here is what is happening :
Copying a file of offsets from machine A to machine B over NFS and then comparing the file on B with the file on A over NFS, the file on machine B is corrupted in the following ways.
Usually, data earlier in the file will show up again later. For example :
57344 bytes of data from 672190464-672247807 is also in positions 1449664512-1449721855
sometimes, data later in the file is dupped to a position before it should be
53248 bytes of data from 1197158400-1197211647 is also in positions 1036660736-1036713983
Any ideas
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