VACUUM PROBLEM

Dear All,

I am having problem while doing vacuum.

The error message is as follows:

NOTICE: Rel queuestatval: Pages: 2 --> 1; Tuple(s)
moved: 16. Elapsed 0/0 sec.
NOTICE: BlowawayRelationBuffers(queuestatval, 1):
block 1 is referenced (private 0, last 0, global 1)
pqReadData() -- backend closed the channel
unexpectedly. This probably means the backend
terminated abnormally before or while processing the
request.
We have lost the connection to the backend, so further
processing is impossible.
Terminating.

-----------------------------------------

I am unable to find head or tail about it. NEED
HELP!!

I am using PostgerSQL 6.5.2 on LINUX 6.0.

Regards,

Dipankar Chakrabarti
Senior Manager - Projects
Mindteck (I) Ltd.

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