OK, new text is:

        Linux has poor default memory overcommit behavior.  Rather than
        failing if it can not reserve enough memory, it returns success,
        but later fails when the memory can't be mapped and terminates
        the application with <literal>kill -9</>.  To prevent unpredictable
        process termination, use:
sysctl -w vm.overcommit_memory=3
        Note, you will need enough swap space to cover all your memory needs.


Tom Lane wrote:
> Bruce Momjian <[EMAIL PROTECTED]> writes:
> > OK, doc patch attached and applied.  Improvements?
> I think it would be worth spending another sentence to tell people
> exactly what the symptom looks like, ie, backends dying with signal 9.
>                       regards, tom lane

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