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From: Justin Pryzby <pryzby@telsasoft.com>
To: Peter Geoghegan <pg@bowt.ie>
Cc: Jeff Davis <pgsql@j-davis.com>
Cc: pgsql-hackers@lists.postgresql.org
Subject: Re: New strategies for freezing, advancing relfrozenxid early
Date: Thu, 10 Nov 2022 21:44:55 -0600
Message-ID: <20221111034455.GE16809@telsasoft.com> (raw)
In-Reply-To: <CAH2-WzkU42GzrsHhL2BiC1QMhaVGmVdb5HR0_qczz0Gu2aSn=A@mail.gmail.com>
References: <CAH2-WzkFok_6EAHuK39GaW4FjEFQsY=3J0AAd6FXk93u-Xq3Fg@mail.gmail.com>
	<1892cc797f86924e31f00fd3c703ca464936c65e.camel@j-davis.com>
	<CAH2-WznREt2q3P+D7bq4b0ytG_z6EOQUPNyoLB+CtEactZJPiA@mail.gmail.com>
	<d0480c1e584150863fdecd9f83ed56a8b4e88a72.camel@j-davis.com>
	<CAH2-WzmXErgxLmYrz9M90D79VjGq4OU8Fp52ECrqRyN_OF=f+A@mail.gmail.com>
	<CAH2-Wzn6dhY3M4MomiABKZDxVC4m=7ub3A8cy3_13j2pJTv1=w@mail.gmail.com>
	<CAH2-WzkU42GzrsHhL2BiC1QMhaVGmVdb5HR0_qczz0Gu2aSn=A@mail.gmail.com>

Note that this fails under -fsanitize=align

Subject: [PATCH v5 2/6] Teach VACUUM to use visibility map snapshot.

performing post-bootstrap initialization ...
../src/backend/access/heap/visibilitymap.c:482:38: runtime error: load of misaligned address 0x5559e1352424 for type 'uint64', which requires 8 byte alignment

>                         *all_visible += pg_popcount64(umap[i] & VISIBLE_MASK64);





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  Subject: Re: New strategies for freezing, advancing relfrozenxid early
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