MySQL Bugs: #65331: MySQL WorkBench Hangs on Ubuntu 12.04 / 64bits

Bug #65331	MySQL WorkBench Hangs on Ubuntu 12.04 / 64bits
Submitted:	16 May 2012 11:32	Modified:	9 Aug 2012 7:38
Reporter:	Cleocir José Hoffmann	Email Updates:
Status:	Closed	Impact on me:	None
Category:	MySQL Workbench	Severity:	S1 (Critical)
Version:	5.2.38 / 5.2.39 / 5.2.40	OS:	Linux (Ubuntu 12.04)
Assigned to:		CPU Architecture:	Any
Tags:	workbench ubuntu hangs

Description:
Hello.

I every had used MySQL Workbench to modelate MySQL databases.

But since the release of Ubuntu 12.04 hangs below the workbench which makes it impossible to use.

I've tried everything, including compiled from source code for version 5.2.40 and the problem still persists.

I did tests and found that in Lubuntu 12.04 also the same problem occurs.

I really need to use MySQL WorkBench and now I do not know what to do.

Thank you for your attention.

How to repeat:
Install Ubuntu 12.04 

Create a EER Model with EER Diagrams.

Some times it crashes:

- When trying to delete an EER diagram
- Closing the Model tab
- Closing

The same problem in Ubuntu 12.04 / 32 bits

It have little to do with Ubuntu but may be connected to glib 2.32 because this didn't happen with earlier versions.

To reproduce: File-->Exit
or open sample EER Diagram and close "Model" tab.

On exit it often print:

    SystemError: null argument to internal routine

and sometimes

    mysql-workbench-bin: tpp.c:63: __pthread_tpp_change_priority: Assertion `new_prio == -1 || (new_prio >= __sched_fifo_min_prio && new_prio <= __sched_fifo_max_prio)' failed.

or

    mysql-workbench-bin: pthread_mutex_lock.c:321: __pthread_mutex_lock_full: Assertion `robust || (oldval & 0x40000000) == 0' failed.

Fixed as of the upcoming 5.2.42, and here's the changelog entry:

On Ubuntu 12.04 64-bit, MySQL Workbench could freeze.

Please advise how this problem was fixed, specifically.

It would be helpful in order to backport fix for 5.2.40
so link to changeset will be much appreciated.

Lack of public repository hurts. :(