Two of my freshly installed NetWare 6.5 servers abend on MediaManager
After several soft-abends, a non-recoverable abend occurs 'Deadlock
detected waiting for spinlock currently owned by CPU –5' on the server.

The server is installed with the latest servicepack (nw65sp4a).
Servertype: HP ML350 G4p (1 cpu installed), 2GB memory
All volumes are NSS, no compression and no snapshot.
No services are running, except MySQL.

It seems, the server is abending after a big load of file-transfers (i.e.
servicepack 5).?