"nfsidmap -c" have not solved the problem. /proc/keys was cleared (except of some "basic" values), but the nfs idmap problem still occured after listing the nfs directories / files.
This is the reason why I have tried the file /etc/sysctl.d/99-maxkeys.conf so /proc/sys/kernel/keys/root_maxkeys have the right value (10000) immediate after boot. But this haven't solved the problem, too.
Additional info:
"nfsidmap -c" have not solved the problem. /proc/keys was cleared (except of some "basic" values), but the nfs idmap problem still occured after listing the nfs directories / files.
This is the reason why I have tried the file /etc/sysctl. d/99-maxkeys. conf so /proc/sys/ kernel/ keys/root_ maxkeys have the right value (10000) immediate after boot. But this haven't solved the problem, too.