pgstat wait timeout

Hello list:

 

Today I started to see this messages on the PostgreSQL log:

 

2012-04-18 00:01:05 UTC : @  :WARNING:  01000: pgstat wait timeout

2012-04-18 00:01:05 UTC : @  :LOCATION:  backend_read_statsfile, pgstat.c:3807

 

I searched and to fix it it was recommended to disable autovacuum, I did it and it worked, but how can I fix it without disabling autovacuum?.

 

 

Thank you.