Bug #93592 mysql crash got signal 6 ,free(): invalid next size (normal):
Submitted: 13 Dec 2018 14:32 Modified: 15 Jan 2019 12:59
Reporter: lou shuai (OCA) Email Updates:
Status: Not a Bug Impact on me:
Category:MySQL Server: Performance Schema Severity:S3 (Non-critical)
Version:5.7.21 OS:Linux
Assigned to: CPU Architecture:x86
Tags: crash

[13 Dec 2018 14:32] lou shuai
mysqld crashed with the following log:

03:00:01 UTC - mysqld got signal 6 ;

*** Error in `/mysql/mysoft/mysql5.7/bin/mysqld': free(): invalid next size (normal): 0x00007fe7bc00c7c0 ***
======= Backtrace: =========

Please check the full error log in attachment.

How to repeat:
No idea
[13 Dec 2018 14:33] lou shuai
mysql error log

Attachment: mysqld_err.log (application/octet-stream, text), 37.84 KiB.

[14 Dec 2018 14:15] MySQL Verification Team

Thank you for your report.

However, in order to verify it, we must be able to repeat it. I do not think that this is our bug, since GNU malloc library reports that its own internal data is corrupted. Hence, I would recommend you to check your RAM modules thoroughly. 

If those are OK, then it could be a glitch that happens quite a lot in low quality RAM modules. However, if you are using ECC memory modules, with 2 bits checking, 1 bit correcting, then it is unlikely that your RAM is a problem.

If that is a case, we would like to verify the bug, providing you send us a fully repeatable test case, that would always lead to the error from the title of this report.
[15 Jan 2019 1:00] Bugs System
No feedback was provided for this bug for over a month, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".