Robert Haas <robertmhaas@gmail.com> writes:
> On Mon, Sep 25, 2017 at 10:22 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> I think we don't really have a lot of choice. I propose applying this
>> as far back as 9.6 --- anyone think differently?
> +1. If applies to 9.5 and 9.4 without a lot of work, I think we
> should apply it there as well, in case there is out-of-core use of DSM
> (or, in 9.5, also of ParallelContext).
Hmm, so I tested this patch on my RHEL6 box (kernel 2.6.32) and it
immediately fell over with
2017-09-25 14:23:48.410 EDT [325] FATAL: could not resize shared memory segment "/PostgreSQL.1682054886" to 6928
bytes:Operation not supported
during startup. I wonder whether we need to round off the request.
regards, tom lane
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