>I forgot to mention - this problem is occurring on multiple Windows
> machines. One of them is running Windows XP Professional. The other is
> running Windows Server 2003. I have disabled indexing, virus scanning,
> and all non-essential services on both of them. The problem continues
> to show up even when no queries are being run (although it might always
> start while queries are running)
seems exactly what i'm noticing since 8.2x on windows 2003 as well - no disk
services (backup, virus, ...) are running that would block files, and
processmon/filemon always show that the files in question are locked by
pgsql processes...
under higher insert/update load, the errors appear more often here, do you
experience the same finding when loading bulk data?
- thomas