iwi leaks memory?

[Yann Berthier]

On Thu, 15 Feb 2007, at 23:34, V.Chukharev wrote:

> 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

   +1 - link goes down whatever the AP is after some time. ifconfig down
   & up works until the point i get the DMA error. While insisting i can
   sometimes get back connectivity (while ifconfig iwi0 | grep "no
   carrier"; do ifconfig iwi0 up; sleep 10; done) but after a few steps
   of that dance i'm left with rebooting or finding a plug.

   this on a T42, tracking more or less regularly -current. As far as i
   remember, i've "always" had this problem with this laptop / intel
   chip (2200BG)