Horton

Re: OK, so culicidae is *still* broken

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Andres Freund <andres@anarazel.de>
Cc: Craig Ringer <craig@2ndquadrant.com>, Amit Kapila <amit.kapila16@gmail.com>, pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2017-04-24T18:43:11Z
Lists: pgsql-hackers 
Andres Freund <andres@anarazel.de> writes:
> On 2017-04-24 23:14:40 +0800, Craig Ringer wrote:
>> In the long run we'll probably be forced toward threading or far pointers.

> I'll vote for removing the windows port, before going for that.  And I'm
> not even joking.

Me too.  We used to *have* that kind of code, ie relative pointers into
the shmem segment, and it was a tremendous notational mess and very
bug-prone.  I do not wish to go back.

(We have accepted that kind of overhead for DSM segments, but the
intention I think is to allow only very trivial data structures in
the DSM segments.  Losing compiler pointer type checking for data
structures like the lock or PGPROC tables would be horrid.)

			regards, tom lane

Commits

  1. Provide a way to control SysV shmem attach address in EXEC_BACKEND builds.

  2. Disable RandomizedBaseAddress on MSVC builds