Bug #42496 server debug assertion after mysql_stmt_fetch is killed
Submitted: 31 Jan 2009 9:48 Modified: 14 Oct 2010 13:27
Reporter: Shane Bester (Platinum Quality Contributor) Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Server: Prepared statements Severity:S2 (Serious)
Version:5.1.30-debug, 5.1.41-debug, 5.1.42-debug OS:Any
Assigned to: Dmitry Shulga CPU Architecture:Any
Tags: KILL
Triage: Triaged: D1 (Critical)

File: Maximum allowed size is 3MB.
Description:
Privacy:

If the data you need to attach is more than 3MB, you should create a compressed archive of the data and a README file that describes the data with a filename that includes the bug number (recommended filename: mysql-bug-data-42496.zip) and upload one to sftp.oracle.com. A free Oracle Web (SSO) account (the one you use to login bugs.mysql.com) and a client that supports SFTP are required in order to access the SFTP server.

To upload the file to sftp.oracle.com:

  1. Open an SFTP client and connect to sftp.oracle.com. Specify port 2021 and remote directory /support/incoming/.
  2. Log in with your newly created Oracle Web account (email address) and password.
  3. Upload the archive to /support/incoming.
  4. Once you have uploaded the file, add a comment to this bug to notify us about it.
Example: sftp -oPort=2021 -oUser=email sftp.oracle.com:/support/incoming

Usage Notes: This directory is unlistable, which means that once you have uploaded your file, you will not be able to see it. A file cannot be uploaded more than once with the same filename. The filename must be changed before attempting to upload the file again. The filename should always start with mysql-bug- prefix. Files are retained on the SFTP server for 7 days and then permanently removed.

[23 Nov 2009 16:57] Shane Bester
testcase. run this against a debug build of mysqld, for some minutes.

Attachment: bug42496.c (text/x-csrc), 11.46 KiB.

[23 Nov 2009 17:18] Shane Bester
i made testcase a bit faster by eliminating 'show processlist' to get the connection to kill. try this if previous is not fast..

Attachment: bug42496.c (text/x-csrc), 11.59 KiB.