Horton

Re: BUG #14897: Segfault on statitics SQL request

Andres Freund <andres@anarazel.de>

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From: Andres Freund <andres@anarazel.de>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Dmitry Dolgov <9erthalion6@gmail.com>, Vincent Lachenal <vincent.lachenal@gmail.com>, PostgreSQL mailing lists <pgsql-bugs@postgresql.org>
Date: 2017-11-10T23:23:04Z
Lists: pgsql-bugs 
On 2017-11-10 18:06:55 -0500, Tom Lane wrote:
> Interesting.  I wonder whether __int128 has an alignment requirement that
> is more than MAXALIGN.  Intel chips generally don't enforce alignment
> requirements, but maybe there's an exception here?

As long as no SIMD instructions are used... Which'd be compiler version
and flag specific.

Greetings,

Andres Freund

Commits

  1. Prevent int128 from requiring more than MAXALIGN alignment.

  2. Rearrange c.h to create a "compiler characteristics" section.