#11862: ath: Failed to stop TX DMA, queues=0x004
------------------------------+-----------------------------------
Reporter: igor@… | Owner: nbd
Type: defect | Status: reopened
Priority: response-needed | Milestone: Barrier Breaker 14.07
Component: kernel | Version: Trunk
Resolution: | Keywords:
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Comment (by r.bloise@…):
same problem here, CHAOS CALMER (Chaos Calmer, r47374) on a Ubiquiti UniFi
AP PRO:
{{{
root@UniFiPRO_01:~# cat /etc/openwrt_release
DISTRIB_ID='OpenWrt'
DISTRIB_RELEASE='Chaos Calmer'
DISTRIB_REVISION='r47374'
DISTRIB_CODENAME='chaos_calmer'
DISTRIB_TARGET='ar71xx/generic'
DISTRIB_DESCRIPTION='OpenWrt Chaos Calmer 15.05'
DISTRIB_TAINTS='no-all busybox'
}}}
{{{
root@UniFiPRO_01:~# cat /proc/cpuinfo
system type : Atheros AR9344 rev 2
machine : Ubiquiti UniFi AP Pro
processor : 0
cpu model : MIPS 74Kc V4.12
BogoMIPS : 278.93
wait instruction : yes
microsecond timers : yes
tlb_entries : 32
extra interrupt vector : yes
hardware watchpoint : yes, count: 4, address/irw mask: [0x0ffc,
0x0ffc, 0x0ffb, 0x0ffb]
isa : mips1 mips2 mips32r1 mips32r2
ASEs implemented : mips16 dsp dsp2
shadow register sets : 1
kscratch registers : 0
package : 0
core : 0
VCED exceptions : not available
VCEI exceptions : not available
}}}
{{{
root@UniFiPRO_01:~# cat /sys/kernel/debug/ieee80211/phy0/ath9k/reset
Baseband Hang: 0
Baseband Watchdog: 0
Fatal HW Error: 0
TX HW error: 0
Transmit timeout: 0
TX Path Hang: 0
PLL RX Hang: 0
MAC Hang: 0
Stuck Beacon: 282
MCI Reset: 0
Calibration error: 0
Tx DMA stop error: 280
Rx DMA stop error: 282
}}}
{{{
root@UniFiPRO_01:~# cat /sys/kernel/debug/ieee80211/phy0/ath9k/interrupt
RXLP: 116248
RXHP: 0
WATHDOG: 0
RXEOL: 306
RXORN: 0
TX: 194865
TXURN: 0
MIB: 0
RXPHY: 0
RXKCM: 0
SWBA: 264297
BMISS: 0
BNR: 0
CST: 0
GTT: 1732
TIM: 0
CABEND: 0
DTIMSYNC: 0
DTIM: 0
TSFOOR: 0
MCI: 0
GENTIMER: 0
TOTAL: 571807
}}}
{{{
root@UniFiPRO_01:~# logread | grep err
Mon Nov 9 15:40:36 2015 kern.err kernel: [ 2473.700000] ath: phy0: DMA
failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x02100020
DMADBG_7=0x00026800
Mon Nov 9 15:40:37 2015 kern.err kernel: [ 2475.240000] ath: phy0: DMA
failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x02100020
DMADBG_7=0x00006400
Mon Nov 9 15:40:40 2015 kern.err kernel: [ 2478.210000] ath: phy0: DMA
failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x02100020
DMADBG_7=0x00026800
Mon Nov 9 15:40:41 2015 kern.err kernel: [ 2479.030000] ath: phy0: DMA
failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x02100020
DMADBG_7=0x00006400
Mon Nov 9 15:40:43 2015 kern.err kernel: [ 2480.970000] ath: phy0: DMA
failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x02100020
DMADBG_7=0x00026800
Mon Nov 9 15:40:45 2015 kern.err kernel: [ 2482.610000] ath: phy0: DMA
failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x02100020
DMADBG_7=0x00026800
Mon Nov 9 15:40:46 2015 kern.err kernel: [ 2484.350000] ath: phy0: DMA
failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x02100020
DMADBG_7=0x00026800
Mon Nov 9 15:40:49 2015 kern.err kernel: [ 2486.910000] ath: phy0: DMA
failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x02100020
DMADBG_7=0x00026e00
Mon Nov 9 15:40:49 2015 kern.err kernel: [ 2487.320000] ath: phy0: DMA
failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x02100020
DMADBG_7=0x00026800
Mon Nov 9 15:40:50 2015 kern.err kernel: [ 2487.930000] ath: phy0: DMA
failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x02100020
DMADBG_7=0x00026800
Mon Nov 9 15:40:50 2015 kern.err kernel: [ 2488.340000] ath: phy0: DMA
failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x02100020
DMADBG_7=0x00006400
Mon Nov 9 15:40:52 2015 kern.err kernel: [ 2489.680000] ath: phy0: DMA
failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x02100020
DMADBG_7=0x00006400
Mon Nov 9 15:40:52 2015 kern.err kernel: [ 2489.980000] ath: phy0: DMA
failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x02100020
DMADBG_7=0x00026800
Mon Nov 9 15:40:53 2015 kern.err kernel: [ 2490.900000] ath: phy0: DMA
failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x02100020
DMADBG_7=0x00026800
Mon Nov 9 15:40:55 2015 kern.err kernel: [ 2493.260000] ath: phy0: DMA
failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x02100020
DMADBG_7=0x00026800
Mon Nov 9 15:40:57 2015 kern.err kernel: [ 2495.310000] ath: phy0: DMA
failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x02100020
DMADBG_7=0x00026800
[...]
}}}
NB: phy0 is 5GHz radio
--
Ticket URL: <https://dev.openwrt.org/ticket/11862#comment:340>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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