From: Kevin Lewis
Date: November 4 2008 9:20pm
Subject: Re: Single Thread Deadlock
List-Archive: http://lists.mysql.com/falcon/136
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Thanks, Jim, I'll get this into Falcon.

Is there any way to make a repeatable testcase with a single engine?

Jim Starkey wrote:
> There is a single thread deadlock in Database::upgradeSystemTables().  
> It starts by getting a shared lock on Database::syncSysDDL.  If it 
> decides that it actually needs to do a database upgrade, it then tried 
> to get an exclusive lock on the same SyncObject.  Deadlock.
> 
> Changing the initial lock from Shared to Exclusive does the trick nicely.
>