On Thu, Aug 16, 2007 at 06:07:14PM +0100, Andrew Doran wrote:

> I found and fixed an i386-specific problem affecting only uniprocessor
> machines. It would have very occasionally resulted in the following being
> reported by libpthread:
> 
>     Error detected by libpthread: Unlocking mutex owned by another thread.

It would have also resulted in other fun errors like:

    Error detected by libpthread: Unlocking unlocked mutex

Note that the problem affected only -current.

Andrew