Hi Spencer,
I could reproduce the EINVAL on the command line:
srvl022:/storage# touch /storage/x
srvl022:/storage# chown 110:140 /storage/x
chown: changing ownership of `/storage/x': Invalid argument
110 and 140 are not valid UIDs and GIDs on the NFS
server. They are defined in the local passwd/group files
on the libvirt server only. After defining the user and
group on the NFS server the error message is gone.
Obviously NFSv4 is a little bit picky about remote root
users trying to change the ownership of files. This seems
to break qemuSecurityDACSetOwnership() in qemu_security_dac.c,
giving me the "unable to set security context" message.
Do you think it would be possible to introduce a configure
option '--with-dac=no'?
Regards
Harri
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