Date: Wed, 28 Jan 2004 01:16:12 -0800 From: "Jake Khuon" <khuon@NEEBU.Net> To: freebsd-mobile@freebsd.org Subject: an0: device timeout Message-ID: <200401280916.i0S9GCnt019901@Espresso.NEEBU.Net>
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Is anyone else experiencing the same problems I am? A week ago I began tracking 5.2-CURRENT (last cvsup was this afternoon), and I've been having repeated lockups and problems with my wireless interface. Sometimes it will simply refuse to associate and signal attributes remain locked at a certain level regardless of my actual proximity to the BSS which would indicate that the radio portion isn't working properly. I've tried ifconfig'ing the interface down and back up without success. Sometimes I can bring the interface back by suspending and resuming but it will often go down again or the machine will lock up shortly afterwards. These are the symptoms I've observed so far: [1] Seems to happen under high packet load (ie. loading a big webpage full of a lot of images) but sometimes will happen while the system is relatively idle too. This seems to happen more with linux-mozilla rather than native mozilla. [2] Sometimes the machine will simply lock up and I'll have to do a hardware reboot. [3] Occasionally I will see an "an0: device timeout". [4] Occasionally happens when dhclient starts up [5] ifconfig shows "no carrier" Some things I've already tried: [1] Played with unsetting RFC3042 capability [2] Increased tcp send/recv space to 64k [3] Increased slowstart flightsize to 4 [4] Turned on TCP delayed ACK [5] Disabled ipfw capability I have a feeling everything I've been seeing are somewhat related and has something to do with the aironet driver. I'm running a Cisco 350 MPI (miniPCI) in an IBM-T30. The problem is that I have no clue as to how to start debugging this. When the machine locks up, I get no debugging messages whatsover. I'm perfectly willing to start throwing printfs into the an driver code. I am running firmware 5.00.01. -- /*===================[ Jake Khuon <khuon@NEEBU.Net> ]======================+ | Packet Plumber, Network Engineers /| / [~ [~ |) | | --------------- | | for Effective Bandwidth Utilisation / |/ [_ [_ |) |_| N E T W O R K S | +=========================================================================*/
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