From: Ben Greear <greearb@candelatech.com>
To: "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
Subject: ath9k: Still seeing DMA issues in latest wireless-testing.
Date: Fri, 28 Jan 2011 20:43:22 -0800 [thread overview]
Message-ID: <4D439AEA.6020101@candelatech.com> (raw)
Looks like some potentially nice ath9k patches just got merged into
wireless-testing. It has been stable and fast so far, but I
do still see DMA issues in the logs.
This is on a system with 30 STAs associated with a flakey netgear running
HT40-, and 30 associated with a cisco running HT20. (Through some luck,
the netgear managed to send proper ht-info channel this time,
so the NIC went HT40-).
ath: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x42000020
ath: Could not stop RX, we could be confusing the DMA engine when we start RX up
ath: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x42000020
ath: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x42000020
ath: Could not stop RX, we could be confusing the DMA engine when we start RX up
ath: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x42000020
sta0: authenticate with 30:46:9a:10:0b:9a (try 1)
sta0: authenticated
sta0: associate with 30:46:9a:10:0b:9a (try 1)
sta0: RX ReassocResp from 30:46:9a:10:0b:9a (capab=0x421 status=0 aid=31)
sta0: associated
ieee80211 wiphy0: Allocated STA 30:46:9a:10:0b:9a
ieee80211 wiphy0: Inserted STA 30:46:9a:10:0b:9a
ieee80211 wiphy0: WMM queue=2 aci=0 acm=0 aifs=3 cWmin=15 cWmax=1023 txop=0 uapsd=0
ieee80211 wiphy0: WMM queue=3 aci=1 acm=0 aifs=7 cWmin=15 cWmax=1023 txop=0 uapsd=0
ieee80211 wiphy0: WMM queue=1 aci=2 acm=0 aifs=2 cWmin=7 cWmax=15 txop=94 uapsd=0
ieee80211 wiphy0: WMM queue=0 aci=3 acm=0 aifs=2 cWmin=3 cWmax=7 txop=47 uapsd=0
ath: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x42000020
ath: Could not stop RX, we could be confusing the DMA engine when we start RX up
ath: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x42000020
ADDRCONF(NETDEV_CHANGE): sta0: link becomes ready
sta0: no IPv6 routers present
ath: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x42000020
ath: Could not stop RX, we could be confusing the DMA engine when we start RX up
ath: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x42000020
ath: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x42000020
ath: Could not stop RX, we could be confusing the DMA engine when we start RX up
ath: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x42000020
ath: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x42000020
ath: Could not stop RX, we could be confusing the DMA engine when we start RX up
ath: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x42000020
Thanks,
Ben
--
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc http://www.candelatech.com
next reply other threads:[~2011-01-29 4:43 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-29 4:43 Ben Greear [this message]
2011-01-30 15:54 ` ath9k: Still seeing DMA issues in latest wireless-testing Björn Smedman
2011-01-30 16:39 ` Ben Greear
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