ORA-600 kcratr1_lastbwr

I hit the error below during startup of my 10.2.0.4  installation running on Solaris 64 on ORA-00600: internal error code, arguments: [kcratr1_lastbwr], [], [], [], [],[], [], [] Basically none of the instances start-up with srvctl command and log this error to alert log. Tried to run manual startup of instances but no chance same…