The following bug has been logged on the website:
Bug reference: 12127
Logged by: Stefan Beer
Email address: s.beer@pyton.nl
PostgreSQL version: 9.3.1
Operating system: Win2008R2
Description:
When I try to create a statistics report for one of my TableSpaces (both via
PgAdmin AND via the pgsql dll) I get an error: "could not stat file
[xyz]_fsm"
Meanwhile I have proven that this error is due to open connections to the
database on this tablespace. If I drop all open connections to the database,
the stats are working; as soon the clients connecting again, I get the error
again. It's 100% reproducible. I guess the tablespace stats/reports should
also work while heavy traffic on the database, so I'm sending you this bug
report.