Hello,
I have found some connection problems since 4.7 release using ath9k that turn
the wifi pretty useless, I think it might be something in the power management
because the signal seems really low. Previously, up to kernel 4.6.7 everything
worked very well.
This is a sample of dmesg in kernel 4.7.2:
239.898935] wlp4s0: authenticate with XX:XX:XX:XX:XX:XX
[ 239.919995] wlp4s0: send auth to XX:XX:XX:XX:XX:XX (try 1/3)
[ 239.931877] wlp4s0: authenticated
[ 239.932357] wlp4s0: associate with XX:XX:XX:XX:XX:XX (try 1/3)
[ 239.942171] wlp4s0: RX AssocResp from XX:XX:XX:XX:XX:XX (capab=0x431
status=0 aid=2)
[ 239.942301] wlp4s0: associated
[ 244.802853] ath: phy0: DMA failed to stop in 10 ms AR_CR=0x00000024
AR_DIAG_SW=0x02000020 DMADBG_7=0x0000
6100
[ 245.931832] wlp4s0: authenticate with XX:XX:XX:XX:XX:XX
[ 245.953028] wlp4s0: send auth to XX:XX:XX:XX:XX:XX (try 1/3)
[ 245.958702] wlp4s0: authenticated
[ 245.960386] wlp4s0: associate withXX:XX:XX:XX:XX:XX (try 1/3)
[ 245.980543] wlp4s0: RX AssocResp from XX:XX:XX:XX:XX:XX (capab=0x431
status=0 aid=2)
lspci on 4.6.7 kernel:
04:00.0 Network controller: Qualcomm Atheros AR9485 Wireless Network Adapter
(rev 01)
Subsystem: AzureWave AR9485 Wireless Network Adapter
Flags: bus master, fast devsel, latency 0, IRQ 18
Memory at f7900000 (64-bit, non-prefetchable) [size=512K]
Expansion ROM at f7980000 [disabled] [size=64K]
Capabilities: [40] Power Management version 2
Capabilities: [50] MSI: Enable- Count=1/4 Maskable+ 64bit+
Capabilities: [70] Express Endpoint, MSI 00
Capabilities: [100] Advanced Error Reporting
Capabilities: [140] Virtual Channel
Capabilities: [160] Device Serial Number 00-00-00-00-00-00-00-00
Kernel driver in use: ath9k
Kernel modules: ath9k
Probably you need some debugging output, but before recompiling the kernel I
would like to know if you are interested in any kind of help from me and what
steps I should take (I'm able to help in testing patches but I'm not familiar
with git). Thank you
Valerio
