From: Tom Lane <tgl@sss.pgh.pa.us>
To: Tomas Vondra <tomas.vondra@enterprisedb.com>
cc: John Naylor <john.naylor@enterprisedb.com>,
        Alvaro Herrera <alvherre@alvh.no-ip.org>,
        PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Subject: Re: WIP: BRIN multi-range indexes
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Comments: In-reply-to Tomas Vondra <tomas.vondra@enterprisedb.com>
	message dated "Fri, 26 Mar 2021 14:38:50 +0100"
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Date: Fri, 26 Mar 2021 09:55:38 -0400
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Tomas Vondra <tomas.vondra@enterprisedb.com> writes:
> I recall seeing "bus error" on sparc with other patches because of
> alignment issues, so I wonder if this is what's happening here.

Try compiling with the address sanitizer enabled.  Per c.h,

 * Testing can be done with "-fsanitize=alignment -fsanitize-trap=alignment"
 * on clang, or "-fsanitize=alignment -fno-sanitize-recover=alignment" on gcc.

			regards, tom lane