Re: [PERFORM] requested shared memory size overflows size_t

Hey there;

As Tom notes before maybe you're not using the right postgres.  Solaris 10 comes with a postgres, but on SPARC it's 32 bit compiled (I can't speak to x86 Solaris though).

Assuming that's not the problem, you can be 100% sure if your Postgres binary is actually 64 bit by using the file command on the 'postgres' executable.  A sample from 64 bit SPARC looks like this:

postgres:       ELF 64-bit MSB executable SPARCV9 Version 1, UltraSPARC3 Extensions Required, dynamically linked, not stripped

But x86 should show something similar.  I have run Postgres up to about 8 gigs of RAM on Solaris without trouble.  Anyway, sorry if this is obvious / not helpful but good luck :)

Steve

On Tue, Jul 15, 2008 at 10:25 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:

"Uwe Bartels" <uwe.bartels@gmail.com> writes:
> When trying to to set shared_buffers greater then 3,5 GB on 32 GB x86
> machine with solaris 10 I running in this error:
> FATAL: requested shared memory size overflows size_t

> The solaris x86 ist 64-bit and the compiled postgres is as well 64-bit.

Either it's not really a 64-bit build, or you made an error in your
math.  What did you try to set shared_buffers to, exactly?  Did you
increase any other parameters at the same time?

                       regards, tom lane

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