From owner-freebsd-net@FreeBSD.ORG  Thu Feb 15 22:28:59 2007
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Date: Thu, 15 Feb 2007 23:34:48 +0200
To: freebsd-net@freebsd.org
From: "V.Chukharev" <chukharev@mail.ru>
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Subject: iwi leaks memory?
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Hi,

It seems that iwi driver cannot survive more than just a few cycles of switching down/up.
In a place with a bad wireless connection I needed to do that quite a number of times
(that was the simplest way to restore connectivity I knew), and after 5-10 cycles I needed
to reboot my notebook totally.

Can anybody with iwi (<Intel(R) PRO/Wireless 2200BG>) confirm (or better unconfirm)
that doing

    for ii in `jot 100`; do sudo ifconfig iwi0 down; sleep 2; sudo ifconfig iwi0 up; done

always results in the following messages (and lost connectivity):

Feb 15 09:43:59 chu kernel: iwi0: link state changed to DOWN
Feb 15 09:44:13 chu kernel: iwi0: link state changed to UP
Feb 15 09:44:13 chu kernel: iwi0: link state changed to DOWN
Feb 15 09:44:18 chu kernel: iwi0: device timeout
Feb 15 09:44:20 chu kernel: iwi0: could not allocate firmware DMA memory

A fix for this would be even better ;))

Thanks,
-- 
V. Chukharev