[SOLVED] FS-Cache Dulicate cookie detected

Thomas Plant

Mar 28, 2018

I have this message from kernel when I mount manually a NFS share:

[158568.381905] FS-Cache: Duplicate cookie detected
[158568.381943] FS-Cache: O-cookie c=00000000d6bc3b33 [p=000000007206c149 fl=222 nc=0 na=1]
[158568.383018] FS-Cache: O-cookie d=000000004b7a1f04 n=0000000027a0466e
[158568.383535] FS-Cache: O-key=[10] '0400020008010a0a6470'
[158568.384029] FS-Cache: N-cookie c=00000000441d2d37 [p=000000007206c149 fl=2 nc=0 na=1]
[158568.384564] FS-Cache: N-cookie d=000000004b7a1f04 n=00000000745cbe81
[158568.385031] FS-Cache: N-key=[10] '0400020008010a0a6470'

This happens when I manually mount a nfs share. There is already a mounted share to this nfs server for proxmox ISO/Template storage. Share(s) work as expected, not seen any apparent problems.

The server is Proxmox 6, NFS is on a Centos 6.

I see the same messages on my machine, it seems to come from mounting multiple exports from the same NFS server. At least this is what I take away from the mailing list. So far I didn't get any issues, besides the message.
  • Like
Reactions: mcwillzz

yes did read the lkml.org thread too, but did not understand if the error poses any risk to my data.
I imported quite a few gigabyte of virtual machines from Xen and had no issues, so I think I will ignore the message ;-)



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