NFS server exited due to error "nfsd: non-standard errno: -16"

Solution Verified - Updated -

Issue

  • NFS server frequently runs in timeout or crashes.
  • NFS server shows the following messages.
[Di Feb 16 09:03:26 2021] ------------[ cut here ]------------
[Di Feb 16 09:03:26 2021] WARNING: CPU: 12 PID: 41468 at fs/nfsd/nfsproc.c:805 nfserrno+0x58/0x70 [nfsd]
[Di Feb 16 09:03:26 2021] WARNING: CPU: 6 PID: 41469 at fs/nfsd/nfsproc.c:805 nfserrno+0x58/0x70 [nfsd]
[Di Feb 16 09:03:26 2021] ivdfs_comm_wait_reply   WARN: <1> [34118] signaled when waiting for reply [41466:0]
[Di Feb 16 09:03:26 2021] ivdfs_comm_wait_reply   WARN: <1> [34105] signaled when waiting for reply [41471:0]
[Di Feb 16 09:03:26 2021] WARNING: CPU: 10 PID: 41467 at fs/nfsd/nfsproc.c:805 nfserrno+0x58/0x70 [nfsd]
[Di Feb 16 09:03:26 2021] nfsd: non-standard errno: -16
[Di Feb 16 09:03:26 2021] nfsd: non-standard errno: -16
[Di Feb 16 09:03:26 2021] ------------[ cut here ]------------
[Di Feb 16 09:03:26 2021] ------------[ cut here ]------------
[Di Feb 16 09:03:26 2021] nfsd: non-standard errno: -16
[Di Feb 16 09:03:26 2021] Modules linked in:
[Di Feb 16 09:03:26 2021] WARNING: CPU: 8 PID: 41471 at fs/nfsd/nfsproc.c:805 nfserrno+0x58/0x70 [nfsd]
[Di Feb 16 09:03:26 2021] WARNING: CPU: 0 PID: 41466 at fs/nfsd/nfsproc.c:805 nfserrno+0x58/0x70 [nfsd]
[Di Feb 16 09:03:26 2021] Modules linked in:
[Di Feb 16 09:03:26 2021] Modules linked in:
[Di Feb 16 09:03:26 2021]  cmac
[Di Feb 16 09:03:26 2021] nfsd: non-standard errno: -16
[Di Feb 16 09:03:26 2021]  cmac
[Di Feb 16 09:03:26 2021]  cmac
[Di Feb 16 09:03:26 2021]  arc4
[Di Feb 16 09:03:26 2021]  arc4
[Di Feb 16 09:03:26 2021] Modules linked in:
[Di Feb 16 09:03:26 2021]  arc4
...
[Di Feb 16 09:03:26 2021]  dm_bufio
[Di Feb 16 09:03:26 2021]  hsmfs(OE)
[Di Feb 16 09:03:26 2021]  hsmfs(OE)
[Di Feb 16 09:03:26 2021]  hsmfs(OE)
...
[Di Feb 16 09:03:26 2021] nfsd: last server has exited, flushing export cache
[Di Feb 16 09:03:26 2021] NFSD: starting 90-second grace period (net ffffffff8df129c0)

Environment

  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9
  • NFS server
  • Exported directory as NFS on hsmfs (3rd party module) filesystem

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