Segmentation Fault During ALTER TABLE Statement

(Doc ID 2076020.1)

Last updated on MARCH 08, 2017

Applies to:

MySQL Server - Version 5.6 and later
Information in this document applies to any platform.


On : 5.6 version, InnoDB

When attempting to perform ALTER TABLE, the following error occurs.

Segmentation fault.
May also show as:
ERROR 2013 (HY000): Lost connection to MySQL server during query

The issue can be reproduced at will with the following steps:
1. Change Innodb page size to 4K
2. Restart/recreate innodb table spaces with new values
3. Attempt an ALTER TABLE command on existing table

The issue has the following business impact:
Due to this issue, users cannot guarantee continuous uptime in a production environment for standard SQL usage.


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