On 09/06/2012 04:54 PM, Stefan Monnier wrote:

>>    * alloc.c (mark_object): Revert window marking code
>>    since it's unsafe for the Fset_window_configuration.
>
> Please revert the rest of the patch as well.

Reverted, safe approach attached.

BTW, are there any reasons to reset local variables in Fkill_buffer?

Dmitry