From: | Richard Huxton <dev(at)archonet(dot)com> |
---|---|
To: | Markus Pscheidt <markus(dot)pscheidt(at)gmail(dot)com> |
Cc: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: Fail to start Postgres on Ubuntu kernel 2.6.28-15-generic |
Date: | 2009-09-08 09:16:53 |
Message-ID: | 4AA62105.9070105@archonet.com |
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Lists: | pgsql-general |
Markus Pscheidt wrote:
> Hello,
>
> while on Ubuntu kernel 2.6.28-14-generic Postgres 8.3.7-1 works fine, it
> doesn't start on Ubuntu 9.04, kernel 2.6.28-15-generic. Following is the log
> output of 'sudo /etc/init.d/postgresql-8.3 start':
> 2009-09-08 08:17:52 CAT FATAL: could not create shared memory segment:
> Invalid argument
> parameter. You can either reduce the request size or reconfigure the kernel
> with larger SHMMAX. To reduce the request size (currently 38207488 bytes),
> reduce PostgreSQL's shared_buffers parameter (currently 4096) and/or its
> max_connections parameter (currently 103).
Your new kernel seems to have a smaller setting for its shared memory
limits than your old kernel. Or perhaps something else is using more of
it. See the manuals for details on how to set a higher limit in
/etc/sysctl.conf and see if that does it.
--
Richard Huxton
Archonet Ltd
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