Re: How can I use 2GB of shared buffers on Windows?

See here for info that will probably help you:

http://support.microsoft.com/kb/913409

The MS knowledge base is quite a good resource for answers to problems
like this.

Please also note that this is absoutely the wrong list for asking such
questions - this list is *only* for posting patches and discussion of
such posted patches.

cheers

andrew

Takayuki Tsunakawa wrote:
> Hello,
>
> Could anyone tell me how to use 2GB of shared buffers on Windows?  I'm
> sorry for attaching large text files and for sending this mail to this
> ML.
> When I try to start PostgreSQL 8.2.1 on Windows 2003 Server with
> shared_buffers=1024MB, I get the following error messages in the Event
> Log (with log_min_messages=debug5) and can't start PostgreSQL:
>
> DEBUG:  mapped win32 error code 8 to 12
>
> FATAL:  shmat(id=1880) failed: Not enough space
>
>
> This means the Win32 API MapViewOfFile() failed with error code =
> ERROR_NOT_ENOUGH_MEMORY.  However, the machine has 4GB of RAM and the
> maximum size of paging file is 8GB.
>
> But I could start PostgreSQL with shared_buffers=900MB.  Then, I
> peeked the memory map of postgres.  The attached files are the memory
> usage of postgres obtained by vadump. which is a tool included in
> Microsoft Resource Kit (vadump is downloadable freely.)
> (I'm using packaged PostgreSQL 8.2.1 available from
> www.postgresql.org.)
>
> --------------------------------------------------
> Symbols loaded: 10000000 : 10107000  libeay32.dll
> Symbols loaded: 1c000000 : 1c006000  comerr32.dll
> Symbols loaded: 5ba20000 : 5ba77000  hnetcfg.dll
> Symbols loaded: 61770000 : 61779000  LPK.DLL
> --------------------------------------------------
>
> These modules appear to be criminals.  They are spliting the address
> space of postgres and preventing postgres from allocating a large
> shared memory.  They seem to be the open source libraries (but what is
> hnetcfg.dll?)
> Why are they located on strange (evil) places?  What can I do?