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Re: (ITS#7249) slapd segfault with memberof overlay on frontend db
> What happens is that the memberof overlay, when stacked on the frontend
> database, keeps looping until the stack is exhausted, since internal
> modifications keep calling the frontend's modify hook rather than the
> actual one that needs to be called.
I have no idea how to fix it. I probably do not understand the manipulation
with BackedInfo structures fully.
It is obious that it is caused by doing a search from the modrdn operation
callback memberof_res_modrdn() which is set up in memberof_op_modrdn(). Other
backends does not call any backend operation at the same moment (op->callback).
Frontend fe_op_search() is called. It tries to choose the right backend with
select_backend(). Which returns the overlay backend (bi_type == "over"),
over_op_walk() then selects fe_op_search() again, and we are looping infinitely.
I have no clue how to hide or temporarily deactivate the overlay in
memberof_res_modrdn() to make the select_backend() function to choose the right
underlaying backend. Or maybe I have choosen a wrong way of fixing it.
All ideas are welcomed. :-)
Thanks & Regards,