Force kernel epoch calls

Hi all,

I have a problem with epoch while I am trying to write
an exploit of a FreeBSD kernel bug. Specifically, many
schedules are managed by epoch system, like if_destroy()
which destroys a struct ifnet object, and in_pcbfree_\
defered()
which destroys a struct inpcb object.

My question is that these schedules will only be called
just before the process exits by epoch_call_task() as
follow:

fork_exit()
-> gtaskqueue_thread_loop()
-> gtaskqueue_run_locked()
-> epoch_call_task()
-> if_destroy()/in_pcbfree_defered()

But I need to control the time of freeing of those
objects as better as synchronization. Do do I have
any methods to force these calls in epoch system
to be called?

Thanks,
Brightiup
 
I suggest you ask on the mailing lists. There are very few developers on this board.
 
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