The cause of this problem has been identified in Bug 7038750.
This problem is introduced in 10.2.0.4 patchset.
A dump can occur under ksuklms leading to an instance crash following a kill of a system process.
Лечится установкой 10.2.0.5 или
SQL код:
alter system set event='10422 trace name context forever, level 1' scope=spfile;