A fix is available
APAR status
Closed as program error.
Error description
AIX NFSv4 client with z/OS as the NFSv4 server. When the NFSv4 server returns NFS4ERR_FHEXPIRED error the AIX client could get in to an endless loop trying to recover from the FHEXPIRED error. Customer will see the n4bg threads taking up CPU on the AIX system, and could also see performance problems on the z/OS server, due to the heavy traffic from the AIX client. This is similar to the problem already fixed in IV45625, but the code path is now in COMMIT calls versus WRITE calls.
Local fix
Problem summary
AIX NFSV4 CLIENT GOES INTO ENDLESS LOOP DUE TO FHEXPIRED ERROR
Problem conclusion
NFS4ERR_FHEXPIRED eror code is handled to avoid a endless loop.
Temporary fix
Comments
6100-08 - use AIX APAR IV58072 6100-09 - use AIX APAR IV61751 6100-09 - use AIX APAR IV61751 7100-02 - use AIX APAR IV64191 7100-03 - use AIX APAR IV61761 7100-04 - use AIX APAR IV61769
APAR Information
APAR number
IV61761
Reported component name
AIX V7.1
Reported component ID
5765H4000
Reported release
710
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Submitted date
2014-06-20
Closed date
2014-06-20
Last modified date
2016-05-11
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
AIX V7.1
Fixed component ID
5765H4000
Applicable component levels
R710 PSY U862118
UP14/10/29 I 1000
PTF to Fileset Mapping
U862118 bos.net.nfs.client 7.1.3.30
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Document Information
Modified date:
11 May 2016