linux-kernel - wireless chip reinitialized (b43)

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Message-Id: <200807240244.55224.mihai.dontu@gmail.com>
Date:	Thu, 24 Jul 2008 02:44:54 +0300
From:	Mihai Donțu <mihai.dontu@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: wireless chip reinitialized (b43)

Hi,

I'm an exclusive wireless user (at home, at least) and a pretty happy
one too. However, today something didn't go right:

[11278.445832] b43-phy0 ERROR: PHY transmission error
[11278.449861] b43-phy0 ERROR: PHY transmission error
[11278.452122] b43-phy0 ERROR: PHY transmission error
[11285.052841] __ratelimit: 12 messages suppressed
[11285.052841] b43-phy0 ERROR: PHY transmission error
[11290.473424] __ratelimit: 9 messages suppressed
[11290.473424] b43-phy0 ERROR: PHY transmission error
[11294.955712] __ratelimit: 3 messages suppressed
[11294.955726] b43-phy0 ERROR: PHY transmission error
[11298.435943] __ratelimit: 93 messages suppressed
[11298.435952] b43-phy0 ERROR: PHY transmission error
[11303.433619] __ratelimit: 143 messages suppressed
[11303.433619] b43-phy0 ERROR: PHY transmission error
[11308.546863] __ratelimit: 282 messages suppressed
[11308.546863] b43-phy0 ERROR: PHY transmission error
[11313.610472] __ratelimit: 281 messages suppressed
[11313.610472] b43-phy0 ERROR: PHY transmission error
[11318.432246] __ratelimit: 281 messages suppressed
[11318.432246] b43-phy0 ERROR: PHY transmission error
[11323.441897] __ratelimit: 417 messages suppressed
[11323.441897] b43-phy0 ERROR: PHY transmission error
[11328.492385] __ratelimit: 301 messages suppressed
[11328.492385] b43-phy0 ERROR: PHY transmission error
[11329.849144] b43-phy0 debug: Wireless interface stopped
[11329.850941] b43-phy0 debug: DMA-32 rx_ring: Used slots 3/64, Failed frames 0/0 = 0.0%, Average tries 0.00
[11329.851862] b43-phy0 debug: DMA-32 tx_ring_AC_BK: Used slots 0/128, Failed frames 0/0 = 0.0%, Average tries 0.00
[11329.853482] b43-phy0 debug: DMA-32 tx_ring_AC_BE: Used slots 0/128, Failed frames 0/0 = 0.0%, Average tries 0.00
[11329.855434] b43-phy0 debug: DMA-32 tx_ring_AC_VI: Used slots 0/128, Failed frames 0/0 = 0.0%, Average tries 0.00
[11329.857355] b43-phy0 debug: DMA-32 tx_ring_AC_VO: Used slots 110/128, Failed frames 1332/114913 = 1.1%, Average tries 1.47
[11329.859335] b43-phy0 debug: DMA-32 tx_ring_mcast: Used slots 0/128, Failed frames 0/0 = 0.0%, Average tries 0.00
[11329.988974] b43-phy0: Loading firmware version 410.2160 (2007-05-26 15:32:10)
[11331.213499] b43-phy0 debug: Chip initialized
[11331.213883] b43-phy0 debug: 32-bit DMA initialized
[11331.222884] b43-phy0 debug: Wireless interface started

I'm pretty used with the "transmission error" messages, but the
"interface stopped/started" are new and had the effect of "locking"
me out of the network (so to speak). I had to reinitialize the
interface via:
  # /etc/init.d/net.wlan0 restart

Is this new to everyone?

I'm using a 2.6.26 vanilla kernel:
  # uname -a
  Linux mdontu-dell 2.6.26 #2 SMP PREEMPT Tue Jul 15 00:19:02 EEST
  2008 x86_64 Intel(R) Core(TM)2 CPU T5500 @ 1.66GHz GenuineIntel
  GNU/Linux
on a DELL Latitude D520, with a:
  0c:00.0 Network controller: Broadcom Corporation BCM4312 802.11a/b/g
  (rev 01)

Thanks,

PS: This is the first time it happens to me and I don't know how to
reproduce it. I'm sorry.

-- 
Mihai Donțu
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