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Message-ID: <4F592210.1030003@gmail.com> Date: Thu, 08 Mar 2012 13:18:08 -0800 From: "Justin P. Mattock" <justinmattock@...il.com> To: Felix Fietkau <nbd@...nwrt.org> CC: Mohammed Shafi <shafi.wireless@...il.com>, linux-kernel@...r.kernel.org, Linux-netdev <netdev@...r.kernel.org>, Linux-wireless <linux-wireless@...r.kernel.org> Subject: Re: ath: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x02000020 DMADBG_7=0x00008040 On 03/07/2012 09:27 AM, Felix Fietkau wrote: > On 2012-03-07 4:24 PM, Justin P. Mattock wrote: >> On 03/07/2012 07:19 AM, Mohammed Shafi wrote: >>> On Wed, Mar 7, 2012 at 7:55 PM, Justin P. Mattock >>> <justinmattock@...il.com> wrote: >>>> ath9k craps out from time to time(more annoying if anything) >>>> >>>> [44309.840830] ath: Failed to stop TX DMA, queues=0x001! >>>> [44309.858246] ath: DMA failed to stop in 10 ms AR_CR=0x00000024 >>>> AR_DIAG_SW=0x02000020 DMADBG_7=0x00008040 >>>> [44309.858255] ath: Could not stop RX, we could be confusing the DMA engine >>>> when we start RX up >>>> [44309.932801] ath: Failed to stop TX DMA, queues=0x001! >>>> [44309.950352] ath: DMA failed to stop in 10 ms AR_CR=0x00000024 >>>> AR_DIAG_SW=0x02000020 DMADBG_7=0x00008040 >>>> [44309.950361] ath: Could not stop RX, we could be confusing the DMA engine >>>> when we start RX up >>>> [44310.024301] ath: Failed to stop TX DMA, queues=0x001! >>>> [44310.041641] ath: DMA failed to stop in 10 ms AR_CR=0x00000024 >>>> AR_DIAG_SW=0x02000020 DMADBG_7=0x00008040 >>>> [44310.041646] ath: Could not stop RX, we could be confusing the DMA engine >>>> when we start RX up >>>> [44310.116316] ath: Failed to stop TX DMA, queues=0x001! >>>> [44310.133909] ath: DMA failed to stop in 10 ms AR_CR=0x00000024 >>>> AR_DIAG_SW=0x02000020 DMADBG_7=0x00008040 >>>> [44310.133918] ath: Could not stop RX, we could be confusing the DMA engine >>>> when we start RX up >>>> [44310.208021] ath: Failed to stop TX DMA, queues=0x001! >>>> [44310.225752] ath: DMA failed to stop in 10 ms AR_CR=0x00000024 >>>> AR_DIAG_SW=0x02000020 DMADBG_7=0x00008040 >>>> [44310.225761] ath: Could not stop RX, we could be confusing the DMA engine >>>> when we start RX up >>>> [44310.299922] ath: Failed to stop TX DMA, queues=0x001! >>>> [44310.317579] ath: DMA failed to stop in 10 ms AR_CR=0x00000024 >>>> AR_DIAG_SW=0x02000020 DMADBG_7=0x00006040 >>>> [44310.317587] ath: Could not stop RX, we could be confusing the DMA engine >>>> whe >>> >>> this is has become a know issue but less harmful, please try to see if >>> the workaround of disabling power save helps >>> >>> iw dev wlanX set power_save off >>> >> >> ok! I have set that on the machine.. will see if I get this message in >> the upcoming weeks. > Also, please try this patch with powersave enabled: > http://nbd.name/ps-fix.patch > > - Felix > probably to early to tell if this patch is working or not(since this bug is shows up randomly), but I have applied this to the current Mainline and am so far not seeing the DMA failed to stop as for any issues: waking up from suspend I get no connection(rmmod/modprobe recovers this) then after a few suspends the connection is real crappy(on and offline). dmesg with debug gives me this: [ 8804.908128] ath: PDADC (0, 0): a2f0 68686868 [ 8804.908132] ath: PDADC: Chain 0 | PDADC 112 Value 104 | PDADC 113 Value 104 | PDADC 114 Value 104 | PDADC 115 Value 104 | [ 8804.908137] ath: PDADC (0, 0): a2f4 68686868 [ 8804.908141] ath: PDADC: Chain 0 | PDADC 116 Value 104 | PDADC 117 Value 104 | PDADC 118 Value 104 | PDADC 119 Value 104 | [ 8804.908145] ath: PDADC (0, 0): a2f8 68686868 [ 8804.908149] ath: PDADC: Chain 0 | PDADC 120 Value 104 | PDADC 121 Value 104 | PDADC 122 Value 104 | PDADC 123 Value 104 | [ 8804.908154] ath: PDADC (0, 0): a2fc 68686868 [ 8804.908158] ath: PDADC: Chain 0 | PDADC 124 Value 104 | PDADC 125 Value 104 | PDADC 126 Value 104 | PDADC 127 Value 104 | [ 8804.908506] ath: Getting spur idx:0 is2Ghz:1 val:8000 [ 8804.908609] ath: Enable MIB counters [ 8804.908632] ath: ANI parameters: [ 8804.908635] ath: noiseImmunityLevel=0, spurImmunityLevel=7, ofdmWeakSigDetectOff=1 [ 8804.908638] ath: cckWeakSigThreshold=0, firstepLevel=0, listenTime=0 [ 8804.908641] ath: ofdmPhyErrCount=0, cckPhyErrCount=0 [ 8804.908643] [ 8804.908646] ath: Writing ofdmbase=12582412 cckbase=12582712 [ 8804.908669] ath: New interrupt mask 0xf4041071 [ 8804.908672] ath: new IMR 0x918414b0 [ 8804.908679] ath: enable IER [ 8804.908690] ath: AR_IMR 0x918414b0 IER 0x1 [ 8804.945518] ath: disable IER [ 8804.945554] ath: enable IER [ 8804.945565] ath: AR_IMR 0x918414b0 IER 0x1 [ 8805.031114] ath: Set channel: 2422 MHz type: 0 [ 8805.031243] ath: disable IER [ 8805.031380] ath: Disable MIB counters [ 8805.031425] ath: Reset to 2422 MHz, HT40: 0 fastcc: 0 [ 8805.031441] ath: NF calibrated [ctl] [chain 0] is -114 [ 8805.033988] ath: PDADC (0, 0): a280 04030201 [ 8805.033995] ath: PDADC: Chain 0 | PDADC 0 Value 1 | PDADC 1 Value 2 | PDADC 2 Value 3 | PDADC 3 Value 4 | [ 8805.034002] ath: PDADC (0, 0): a284 08070605 [ 8805.034007] ath: PDADC: Chain 0 | PDADC 4 Value 5 | PDADC 5 Value 6 | PDADC 6 Value 7 | PDADC 7 Value 8 | [ 8805.034013] ath: PDADC (0, 0): a288 0c0b0a09 [ 8805.034019] ath: PDADC: Chain 0 | PDADC 8 Value 9 | PDADC 9 Value 10 | PDADC 10 Value 11 | PDADC 11 Value 12 | [ 8805.034025] ath: PDADC (0, 0): a28c 100f0e0d [ 8805.034030] ath: PDADC: Chain 0 | PDADC 12 Value 13 | PDADC 13 Value 14 | PDADC 14 Value 15 | PDADC 15 Value 16 | [ 8805.034037] ath: PDADC (0, 0): a290 18161412 [ 8805.034042] ath: PDADC: Chain 0 | PDADC 16 Value 18 | PDADC 17 Value 20 | PDADC 18 Value 22 | PDADC 19 Value 24 | [ 8805.034048] ath: PDADC (0, 0): a294 23201d1a [ 8805.034053] ath: PDADC: Chain 0 | PDADC 20 Value 26 | PDADC 21 Value 29 | PDADC 22 Value 32 | PDADC 23 Value 35 | [ 8805.034059] ath: PDADC (0, 0): a298 302b2825 [ 8805.034064] ath: PDADC: Chain 0 | PDADC 24 Value 37 | PDADC 25 Value 40 | PDADC 26 Value 43 | PDADC 27 Value 48 | [ 8805.034070] ath: PDADC (0, 0): a29c 45403b36 [ 8805.034075] ath: PDADC: Chain 0 | PDADC 28 Value 54 | PDADC 29 Value 59 | PDADC 30 Value 64 | PDADC 31 Value 69 | [ 8805.034081] ath: PDADC (0, 0): a2a0 5a544f4a [ 8805.034086] ath: PDADC: Chain 0 | PDADC 32 Value 74 | PDADC 33 Value 79 | PDADC 34 Value 84 | PDADC 35 Value 90 | [ 8805.034092] ath: PDADC (0, 0): a2a4 726c6660 [ 8805.034098] ath: PDADC: Chain 0 | PDADC 36 Value 96 | PDADC 37 Value 102 | PDADC 38 Value 108 | PDADC 39 Value 114 | [ 8805.034104] ath: PDADC (0, 0): a2a8 0f0d0b09 [ 8805.034110] ath: PDADC: Chain 0 | PDADC 40 Value 9 | PDADC 41 Value 11 | PDADC 42 Value 13 | PDADC 43 Value 15 | [ 8805.034116] ath: PDADC (0, 0): a2ac 17151311 [ 8805.034121] ath: PDADC: Chain 0 | PDADC 44 Value 17 | PDADC 45 Value 19 | PDADC 46 Value 21 | PDADC 47 Value 23 | [ 8805.034127] ath: PDADC (0, 0): a2b0 201d1b19 [ 8805.034133] ath: PDADC: Chain 0 | PDADC 48 Value 25 | PDADC 49 Value 27 | PDADC 50 Value 29 | PDADC 51 Value 32 | [ 8805.034139] ath: PDADC (0, 0): a2b4 2b282522 [ 8805.034145] ath: PDADC: Chain 0 | PDADC 52 Value 34 | PDADC 53 Value 37 | PDADC 54 Value 40 | PDADC 55 Value 43 | [ 8805.034151] ath: PDADC (0, 0): a2b8 3935312e [ 8805.034156] ath: PDADC: Chain 0 | PDADC 56 Value 46 | PDADC 57 Value 49 | PDADC 58 Value 53 | PDADC 59 Value 57 | [ 8805.034163] ath: PDADC (0, 0): a2bc 4b44403c [ 8805.034168] ath: PDADC: Chain 0 | PDADC 60 Value 60 | PDADC 61 Value 64 | PDADC 62 Value 68 | PDADC 63 Value 75 | [ 8805.034174] ath: PDADC (0, 0): a2c0 67605952 [ 8805.034179] ath: PDADC: Chain 0 | PDADC 64 Value 82 | PDADC 65 Value 89 | PDADC 66 Value 96 | PDADC 67 Value 103 | [ 8805.034185] ath: PDADC (0, 0): a2c4 7575756e [ 8805.034190] ath: PDADC: Chain 0 | PDADC 68 Value 110 | PDADC 69 Value 117 | PDADC 70 Value 117 | PDADC 71 Value 117 | [ 8805.034196] ath: PDADC (0, 0): a2c8 75757575 [ 8805.034202] ath: PDADC: Chain 0 | PDADC 72 Value 117 | PDADC 73 Value 117 | PDADC 74 Value 117 | PDADC 75 Value 117 | [ 8805.034208] ath: PDADC (0, 0): a2cc 75757575 [ 8805.034213] ath: PDADC: Chain 0 | PDADC 76 Value 117 | PDADC 77 Value 117 | PDADC 78 Value 117 | PDADC 79 Value 117 | [ 8805.034219] ath: PDADC (0, 0): a2d0 75757575 [ 8805.034224] ath: PDADC: Chain 0 | PDADC 80 Value 117 | PDADC 81 Value 117 | PDADC 82 Value 117 | PDADC 83 Value 117 | [ 8805.034230] ath: PDADC (0, 0): a2d4 75757575 [ 8805.034236] ath: PDADC: Chain 0 | PDADC 84 Value 117 | PDADC 85 Value 117 | PDADC 86 Value 117 | PDADC 87 Value 117 | [ 8805.034241] ath: PDADC (0, 0): a2d8 75757575 [ 8805.034246] ath: PDADC: Chain 0 | PDADC 88 Value 117 | PDADC 89 Value 117 | PDADC 90 Value 117 | PDADC 91 Value 117 | [ 8805.034252] ath: PDADC (0, 0): a2dc 75757575 [ 8805.034257] ath: PDADC: Chain 0 | PDADC 92 Value 117 | PDADC 93 Value 117 | PDADC 94 Value 117 | PDADC 95 Value 117 | [ 8805.034264] ath: PDADC (0, 0): a2e0 75757575 [ 8805.034269] ath: PDADC: Chain 0 | PDADC 96 Value 117 | PDADC 97 Value 117 | PDADC 98 Value 117 | PDADC 99 Value 117 | [ 8805.034275] ath: PDADC (0, 0): a2e4 75757575 [ 8805.034281] ath: PDADC: Chain 0 | PDADC 100 Value 117 | PDADC 101 Value 117 | PDADC 102 Value 117 | PDADC 103 Value 117 | [ 8805.034286] ath: PDADC (0, 0): a2e8 75757575 [ 8805.034292] ath: PDADC: Chain 0 | PDADC 104 Value 117 | PDADC 105 Value 117 | PDADC 106 Value 117 | PDADC 107 Value 117 | [ 8805.034298] ath: PDADC (0, 0): a2ec 75757575 [ 8805.034303] ath: PDADC: Chain 0 | PDADC 108 Value 117 | PDADC 109 Value 117 | PDADC 110 Value 117 | PDADC 111 Value 117 | [ 8805.034310] ath: PDADC (0, 0): a2f0 75757575 [ 8805.034315] ath: PDADC: Chain 0 | PDADC 112 Value 117 | PDADC 113 Value 117 | PDADC 114 Value 117 | PDADC 115 Value 117 | [ 8805.034321] ath: PDADC (0, 0): a2f4 75757575 [ 8805.034326] ath: PDADC: Chain 0 | PDADC 116 Value 117 | PDADC 117 Value 117 | PDADC 118 Value 117 | PDADC 119 Value 117 | [ 8805.034332] ath: PDADC (0, 0): a2f8 75757575 [ 8805.034338] ath: PDADC: Chain 0 | PDADC 120 Value 117 | PDADC 121 Value 117 | PDADC 122 Value 117 | PDADC 123 Value 117 | [ 8805.034344] ath: PDADC (0, 0): a2fc 75757575 [ 8805.034349] ath: PDADC: Chain 0 | PDADC 124 Value 117 | PDADC 125 Value 117 | PDADC 126 Value 117 | PDADC 127 Value 117 | [ 8805.034377] ath: Getting spur idx:0 is2Ghz:1 val:8000 [ 8805.036119] ath: Reset TX queue: 0 [ 8805.036125] ath: tx ok 0x0 err 0x0 desc 0x10f eol 0x10f urn 0x0 [ 8805.036130] ath: Reset TX queue: 1 [ 8805.036135] ath: tx ok 0x0 err 0x0 desc 0x10f eol 0x10f urn 0x0 [ 8805.036140] ath: Reset TX queue: 2 [ 8805.036146] ath: tx ok 0x0 err 0x0 desc 0x10f eol 0x10f urn 0x0 [ 8805.036151] ath: Reset TX queue: 3 [ 8805.036157] ath: tx ok 0x0 err 0x0 desc 0x10f eol 0x10f urn 0x0 [ 8805.036163] ath: Reset TXQ, inactive queue: 4 [ 8805.036167] ath: Reset TXQ, inactive queue: 5 [ 8805.036171] ath: Reset TXQ, inactive queue: 6 [ 8805.036175] ath: Reset TXQ, inactive queue: 7 [ 8805.036180] ath: Reset TX queue: 8 [ 8805.036195] ath: tx ok 0x0 err 0x0 desc 0x10f eol 0x10f urn 0x0 [ 8805.036201] ath: Reset TX queue: 9 [ 8805.036216] ath: tx ok 0x0 err 0x0 desc 0x10f eol 0x10f urn 0x0 [ 8805.036230] ath: ah->misc_mode 0x4 [ 8805.037647] ath: Running PA Calibration [ 8805.038316] ath: enabling ADC Gain Calibration [ 8805.038320] ath: enabling ADC DC Calibration [ 8805.038324] ath: enabling IQ Calibration [ 8805.038333] ath: starting ADC Gain Calibration [ 8805.038471] ath: Enable MIB counters [ 8805.038496] ath: ANI parameters: [ 8805.038501] ath: noiseImmunityLevel=0, spurImmunityLevel=7, ofdmWeakSigDetectOff=1 [ 8805.038507] ath: cckWeakSigThreshold=0, firstepLevel=2, listenTime=0 [ 8805.038511] ath: ofdmPhyErrCount=0, cckPhyErrCount=0 [ 8805.038513] [ 8805.038521] ath: ANI parameters: [ 8805.038525] ath: noiseImmunityLevel=0, spurImmunityLevel=7, ofdmWeakSigDetectOff=1 [ 8805.038531] ath: cckWeakSigThreshold=0, firstepLevel=2, listenTime=0 [ 8805.038536] ath: ofdmPhyErrCount=0, cckPhyErrCount=0 [ 8805.038538] [ 8805.038543] ath: Writing ofdmbase=12582412 cckbase=12582712 [ 8805.038578] ath: New interrupt mask 0xf4041071 [ 8805.038583] ath: new IMR 0x918414b0 [ 8805.038592] ath: enable IER [ 8805.038604] ath: AR_IMR 0x918414b0 IER 0x1 [ 8805.038695] ath: Set HW RX filter: 0x207 [ 8805.038724] ieee80211 phy5: device now idle [ 8805.038826] ath: AWAKE -> FULL-SLEEP [ 8805.038911] ath: FULL-SLEEP -> AWAKE [ 8805.041787] ath: AWAKE -> FULL-SLEEP [ 8805.041808] ieee80211 phy5: device no longer idle - working [ 8805.041817] ath: FULL-SLEEP -> AWAKE [ 8805.044666] wlan0: authenticate with 00:1e:2a:62:6b:1e (try 1) [ 8805.044679] ath: transmitting packet, skb: f6b88c00 [ 8805.044688] ath: qnum: 0, txq depth: 0 [ 8805.044690] ath: TXDP[0] = 2ecd6e8c (eecd6e8c) [ 8805.044692] ath: Enable TXE on queue: 0 [ 8805.242495] wlan0: authenticate with 00:1e:2a:62:6b:1e (try 2) [ 8805.242511] ath: transmitting packet, skb: f71309c0 [ 8805.242521] ath: qnum: 0, txq depth: 1 [ 8805.242525] ath: link[0] (eecd6e8c)=2ecd6ef0 (eecd6ef0) [ 8805.242528] ath: Enable TXE on queue: 0 [ 8805.441878] wlan0: authenticate with 00:1e:2a:62:6b:1e (try 3) [ 8805.441893] ath: transmitting packet, skb: f6b88b40 [ 8805.441903] ath: qnum: 0, txq depth: 2 [ 8805.441907] ath: link[0] (eecd6ef0)=2ecd6f54 (eecd6f54) [ 8805.441911] ath: Enable TXE on queue: 0 [ 8805.641298] wlan0: authentication with 00:1e:2a:62:6b:1e timed out [ 8805.641445] ieee80211 phy5: device now idle will continue running the system to see if I get anymore leads on this issue. Justin P. Mattock -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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