ORA-00445: background process "q00O" did not start after 120 seconds

[mohan_14]

Hello,

While running database backup , backup team found that they could not connect to the database. When checked from my side I found following error in the database alert log file.
Also Attached trace file for your reference.

ORA-00445: background process "q00O" did not start after 120 seconds
Wed Sep 24 08:02:23 2014
PMON failed to acquire latch, see PMON dump
Wed Sep 24 08:03:23 2014
PMON failed to acquire latch, see PMON dump
Wed Sep 24 08:03:41 2014
Errors in file /opt/app/oracle/diag/rdbms/ecms01/ECMS01/trace/ECMS01_qmnc_4240.trc (incident=181102):
ORA-00445: background process "q00P" did not start after 120 seconds

Please help me to fix this error.

--Could not upload trace file. Its giving error

Regards,
Mohan

[ora_venlo]

Where you able to open the trace file yourself?

Are all rights on the executables correctly set?
Did you recently have a crash on the database?
Did you check if you have the right environment parameters like for instance $ORACLE_HOME?