On Fri, Nov 19, 2010 at 5:59 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Robert Haas <robertmhaas@gmail.com> writes:
>> But what about timings vs. random other stuff? Like in this case
>> there's a problem if the signal arrives before the memory update to
>> latch->is_set becomes visible. I don't know what we need to do to
>> guarantee that.
>
> I don't believe there's an issue there. A context swap into the kernel
> is certainly going to include msync. If you're afraid otherwise, you
> could put an msync before the kill() call, but I think it's a waste of
> effort.
So what DO we need to guard against here?
--
Robert Haas
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