On 2007-08-06 15:20 +0100, Richard Stallman wrote:
>     Leo has reported some strange freezes related to buffer switching
>     with ido-mode enabled.
>
>     Here's the result of looking at the process when emacs hangs.
>     He's using Emacs 23.  
>
>     Anyone want to look into this?
>
> This is really strange.  Leo, can you try single-stepping by
> instructions?  The pc must be somewhere.

I encounter such a crash very often and I have now attached a
backtrace. Can someone take a look and fix this bug?