[opensuse-factory] Many problems since about Kernel 5.1.x on Tumbleweed Client - KDE isn't useable anymore

15 Jul 2019

      Hi Together,

since some month I've a lot of trouble with my about 20 Years
old Home network, which was all running on Tumbleweed:

Server (NFS 4 Server which is sharing /home config via YaST):
 |- Client1 (/home mounted via & user via NIS)
 |- Client2 (/home mounted via & user via NIS)
...
 |- Client5 (/home mounted via & user via NIS)

Remark: Server and Client user are synced via NIS/YP configurated
via YaST at Server and Client (basic setup was before about 20 
years - last installation due to a root FS crash before about 1
year based on the Tumbleweed installation ISO).

On the most Clients KDE Plasma Crashes many times after login

If they are starting - it takes about 10 up to 30 minutes!!!!
Afterwords the system hangs from time to time with normal
load and only the tracker extract info below. What can I do?
One client I installed the last ISO (from 8th July) but this
one don't mount /home well, so I need to unmount it and mount 
again via:

umount -f /home ; systemctl start home.mount ; systemctl status home.mount

# cat /etc/fstab (extract)
192.168.2.1:/mnt/nfs4/home                 /home      nfs  defaults  0  0

# cat /etc/fstab (extract - also tested with nfs4)
192.168.2.1:/mnt/nfs4/home                 /home      nfs4  defaults  0  0

# journalctl -xa (extract)
Jul 13 10:33:23 client1 tracker-extract[6746]: If the error above is recurrent for the same item/ID, consider running "tracker-extract" in the terminal with the TRACKER_VERBOSITY=3 environment variable, and filing a bug with the additional information
Jul 13 10:33:23 client1 tracker-extract[6746]: Could not insert metadata for item "file:///usr/share/applications/YaST2/sysconfig.desktop": Subject `urn:uuid:xyz' is not in domain `nie:DataObject' of property `nie:dataSource'

If I call tracker manually, there will be the following output:
# tracker extract -v detailed /usr/share/applications/YaST2/groups/
** Message: 19:36:49.371: Starting tracker-extract 2.2.2
** Message: 19:36:49.371: General options:
** Message: 19:36:49.371:   Verbosity  ............................  2
** Message: 19:36:49.371:   Sched Idle  ...........................  1
(tracker-extract:4939): dconf-DEBUG: 19:36:49.371: watch_established: "/org/freedesktop/tracker/extract/" (establishing: 1)
** Message: 19:36:49.371:   Max bytes (per file)  .................  1048576
Setting scheduler policy to SCHED_IDLE
Setting priority nice level to 19
Loading extractor rules... (/usr/share/tracker-miners/extract-rules)
Extractor rules loaded
MIME type guessed as 'inode/directory' (from GIO)
file:///usr/share/applications/YaST2/groups: Es wurden keine Metadaten gefunden oder keine Entdecker, die mit dieser Datei umgehen können
ulfi@baldo:~> tracker extract -v detailed /usr/share/applications/YaST2/groups/*
** Message: 19:36:57.536: Starting tracker-extract 2.2.2
** Message: 19:36:57.536: General options:
** Message: 19:36:57.536:   Verbosity  ............................  2
** Message: 19:36:57.536:   Sched Idle  ...........................  1
** Message: 19:36:57.536:   Max bytes (per file)  .................  1048576
Setting scheduler policy to SCHED_IDLE
Setting priority nice level to 19
(tracker-extract:4955): dconf-DEBUG: 19:36:57.537: watch_established: "/org/freedesktop/tracker/extract/" (establishing: 1)
Loading extractor rules... (/usr/share/tracker-miners/extract-rules)
Extractor rules loaded
MIME type guessed as 'application/x-desktop' (from GIO)
@prefix nie: <http://www.semanticdesktop.org/ontologies/2007/01/19/nie#> .
@prefix nfo: <http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .

<urn:software-category:Qt> nie:title "Qt" ;
  a nfo:SoftwareCategory .