Re: iwn0 driver: status

["Marcin M. Jessa" <lists%yazzy.org@localhost>]

Marcin M. Jessa wrote:
> Hi again Brett.
>
>
> Brett Lymn wrote:
> > On Mon, Jul 28, 2008 at 11:16:19PM +0200, Marcin M. Jessa wrote:
> > > The system reboots immediately when I start a torrent client and try 
> > > to download something.
> >
> > How odd - I have done some reasonably heavy traffic on mine (ftp'ing
> > an iso across the link) and not seen that.
>
> This is happening again and very frequently. The easiest way to trigger 
>  crashes is to try to download a torrent. But it also happens when 
> surfing web sites or checking email (intensive network activity).
> Very randomly but very often, to the degree when the system gets 
> unusable because of the never ending crashes.
>
> This is what gets written to console after system crash:
>
> fatal page fault in supervisor mode
> trap type 6 code eip c03f8856 cs 8 eflags 210282cr2 4 ilevel 6
> panic: trap
> syncing disks... iwn0: device timeout
>
>
>
> I'm on x86, NetBSD 4.99.72 compiled Tue Sep 2 22:46:32 CEST 2008

If this helps, I also changed the value of MTU to 1460 and started 
downloading a torrent. Then following message was written to console 
(about 10 times) before the system crashed with the same error message:

iwn0: discarding oversize frame (len=1514)

The value of len was variable from 1494 to 1514 (always bigger than the 
size of MTU and usually bigger than 1500).


Marcin