I am using 64-bit Debian Squeeze (Debian kernel) on a headless file server and Debian Sid with Liquorix kernel on the client.
The problem is that NFS4-shares on my server is mounted with incorrect owner/permissions on the client (user/group = -2).
I noticed it just today, and I know it is a problem with at least the 2.6.37-0.dmz.5-liquorix-686 and 2.6.37-0.dmz.4-liquorix-686 kernels. I don't know about earlier versions.
Permissions works as expected with the 2.6.36-3.dmz.2-liquorix-686 kernel.
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Same problem with 2.6.37-0.dmz.6
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Same problem. The reason for this is the new way of ID-Mapping in 2.6.37.

--> Documentation/filesystems/nfs/idmapper.txt

in the kernel source code. You need keyutils and the latest version of nfs-common (source package: nfs-utils) installed. Yet, the latest version isn't even available for sid. Therefore the easiest way of getting idmapping to work again is to disable

NFS_USE_NEW_IDMAPPER

in the kernel configuration and rebuild the package. Should work then. Currently I'm rebuilding the package...
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Thank you for the information. I'll just stick with 2.6.36 for now then.
Thanks again!
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