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NFSv4 owner sequence ID is not properly compared

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Category:
ontap-9
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NAS
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Applies to

  • ONTAP 9
  • Cluster Data ONTAP 8
  • Data ONTAP 7-mode
  • NFSv4.1

Issue

In a trace we see that the storage responds with the NFS4ERR_BAD_SEQID error from the very first time the client initiated a request with a Sequence ID higher than: 0x0fffffff (7f). In other words, when the Sequence ID sent from the client uses the last bit.

Example from a client trace with the issue:

image1.png

 

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