From mboxrd@z Thu Jan  1 00:00:00 1970
From: Xose Vazquez Perez <xose.vazquez@gmail.com>
Date: Fri, 18 Jan 2013 23:15:23 +0100
Subject: [ath9k-devel] ath9k bug:  DMA failed to stop  ...
Message-ID: <50F9C97B.3040205@gmail.com>
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To: ath9k-devel@lists.ath9k.org

hi,

I see occasionally bugs with ath9k hardware:

ath: phy0: DMA failed to stop in 10 ms AR_CR=0x00000024
AR_DIAG_SW=0x42000020 DMADBG_7=0x00006040
ath: phy0: Could not stop RX, we could be confusing the DMA engine when
we start RX up
ath: phy0: Failed to stop TX DMA, queues=0x001!

kernel: 3.6.11-5.fc17.x86_64, and older.

device:
ieee80211 phy0: Atheros AR9280 Rev:2 mem=0xffffc900116c0000, irq=19
05:00.0 Network controller [0280]: Atheros Communications Inc. AR928X
Wireless Network Adapter (PCI-Express) [168c:002a] (rev 01)


I also see the *same bug* with openwrt ATTITUDE ADJUSTMENT (12.09-rc1,
r34185) on a Buffalo WZR-HP-G300NH device:
https://dev.openwrt.org/ticket/12623


-thanks-