COTTP-120160：NFS v4.2-xatts字段在升级后被翻转

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Category:: ontap-9

Specialty:: nas

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问题描述

Users are not able to mount NFS shares on Vservers (SVM) created in ONTAP pre-9.12.1
After upgrading ONTAP to 9.12.1, the NFS option "v4.2-xattrs" flips back and forth between enabled, disabled and re-enabled during first few hours.

Example SKTRACE.GZ: [2024-01-07T09:23:41Z 1357141480396 [13:0] NfsInfo_1: insertNfsOptions: EVENT: OPT_nfsV42XattrsEnable_MODIFIED, VS_ID: 4, old: 0, new: 1] [2024-01-07T09:24:01Z 1405731180402 [13:0] NfsInfo_1: insertNfsOptions: EVENT: OPT_nfsV42XattrsEnable_MODIFIED, VS_ID: 3, old: 1, new: 0] [2024-01-07T09:24:01Z 1405763975674 [15:0] NfsInfo_1: insertNfsOptions: EVENT: OPT_nfsV42XattrsEnable_MODIFIED, VS_ID: 4, old: 1, new: 0]

The v4.2-xattr option was never explicitly assigned a value before the ONTAP upgrade.
NFSv4.2 clients are not informed that the server's extended attributes option has changed, causing NFS response errors to specific xattr calls while the client and server mismatch.