Re: Improve CRC32C performance on SSE4.2

From: Andy Fan <zhihuifan1213(at)163(dot)com>
To: John Naylor <johncnaylorls(at)gmail(dot)com>
Cc: Nathan Bossart <nathandbossart(at)gmail(dot)com>, "Devulapalli, Raghuveer" <raghuveer(dot)devulapalli(at)intel(dot)com>, "pgsql-hackers(at)lists(dot)postgresql(dot)org" <pgsql-hackers(at)lists(dot)postgresql(dot)org>, "Shankaran, Akash" <akash(dot)shankaran(at)intel(dot)com>
Subject: Re: Improve CRC32C performance on SSE4.2
Date: 2025-06-14 10:24:40
Message-ID: 87o6uqd3iv.fsf@163.com
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Hi,

Recently I always get below error during initdb.

"""
UTC [1358059] FATAL: incorrect checksum in control file
"""

the command is "initdb -D tmp". git bisect show me the related commit is
3c6e8c123896584f1be1fe69aaf68dcb5eb094d5. After revert this commit on
the current master, everything is fine. Does anyone knows the reason?

The attached is my config.log.

Attachment Content-Type Size
config.log application/octet-stream 406.6 KB
unknown_filename text/plain 27 bytes

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