Timeout while waiting for nf to load

Adrian Chadd adrian at freebsd.org
Sun Dec 18 18:15:00 UTC 2011


On 18 December 2011 08:56, Dmitry Kolosov <onyx at z-up.ru> wrote:
> Please help!
> The problem: while watching a movie over NFS over wireless, transmiting and
> receiving stops for about 10-20 seconds every 5-10 minutes, and i see this in
> messages:
>
> Dec 18 20:28:06 onyx-y550p kernel: Timeout while waiting for nf to load:
> AR_PHY_AGC_CONTROL=0x40d22

That's odd; the only reason this occurs is when the RX side is so
badly noisy, it can't find a quiet period to complete the noise floor
load/update.

Please file a PR. I'm a bit snowed under at the moment but I'll see if
I can find anything obvious.

Can you try with a different base station? I just wonder whether this
is a case where the base station is getting angry and transmitting a
burst of noise or something..


Adrian

> Dec 18 20:28:08 onyx-y550p kernel: wlan0: link state changed to DOWN
> Dec 18 20:28:11 onyx-y550p kernel: wlan0: link state changed to UP
> Dec 18 20:33:36 onyx-y550p kernel: Timeout while waiting for nf to load:
> AR_PHY_AGC_CONTROL=0x40d22
> Dec 18 20:33:38 onyx-y550p kernel: wlan0: link state changed to DOWN
> Dec 18 20:33:41 onyx-y550p kernel: wlan0: link state changed to UP
> Dec 18 20:34:36 onyx-y550p kernel: Timeout while waiting for nf to load:
> AR_PHY_AGC_CONTROL=0x40d22
> Dec 18 20:34:38 onyx-y550p kernel: wlan0: link state changed to DOWN
> Dec 18 20:34:41 onyx-y550p kernel: wlan0: link state changed to UP
>
> Other wireless operations runs smoothly, without any glitches. I think it
> happens only on huge wireless load.
>
> Station:
> FreeBSD 9.0-PRERELEASE #5 r228415: Mon Dec 12 23:45:50 MSK 2011
> ath0 at pci0:6:0:0:        class=0x028000 card=0x30a117aa chip=0x002b168c
> rev=0x01 hdr=0x00
>    vendor     = 'Atheros Communications Inc.'
>    device     = 'AR9285 Wireless Network Adapter (PCI-Express)'
>    class      = network
> ath0: <Atheros 9285> mem 0xd7100000-0xd710ffff irq 17 at device 0.0 on pci6
> ath0: [HT] enabling HT modes
> ath0: [HT] 1 RX streams; 1 TX streams
> ath0: AR9285 mac 192.2 RF5133 phy 14.0
>
> Base:
> FreeBSD 8.2-STABLE #1: Tue Sep 27 01:22:02 MSD 2011
> ath0 at pci0:5:0:0:        class=0x020000 card=0x2051168c chip=0x0013168c
> rev=0x01 hdr=0x00
>    vendor     = 'Atheros Communications Inc.'
>    device     = '802.11a/b/g Wireless Adapter (AR2312)'
>    class      = network
>    subclass   = ethernet
>
> Thanks in advance.
>
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