ath10k temperature issue with late2012 macbook pro

[Mohammed Shafi Shajakhan]

Hi,

On Tue, May 17, 2016 at 11:04:39PM +0200, Lil Evil wrote:
> Hi all,
> 
> I am running an MikroTik R11e-5HacT - High-power triple-chain miniPCI-e Card (routerboard.com/R11e-5HacT) in an apu.2c4 (http://pcengines.ch/apu2c4.htm) - so far so good.
> 
> I recently came to realise that the temperature of the AC module goes up to 95°C reported by sensors during heavy use. Readings seems legitimate verifying by physical touch.
> 
> I played with transmit power and reduced from 30db to 21db with marginal difference of 5°C.
> 
> The specs give a max temp of 65°C, so that doesnt seem very healthy.
> 
> I have tried various firmware and kernel versions without any difference
> 
> The issue seems to be related to my MAC client:
> 
> Windows PC 802.11n transfering at 25MB/sec - WiFi module between 67°C - 70°C
> MAC (next to Windows PC) 802.11n transfering at 15MB/sec - WiFi module reaches 85°C within 60 sec
> IPAD 802.11ac transfering at 20MB/sec  -  WiFi module between 67°C - 70°C
>  
> 
> Any pointers welcome?

[shafi] May be you can check this
http://www.spinics.net/lists/linux-wireless/msg130753.html
and get more information

> 
> Cheers
> lIl
> 
> 
> Debug info:
> 
>  
> root at xenial:~# uname -a
> 
> Linux xenial 4.6.0 #1 SMP Mon May 16 13:53:14 CEST 2016 x86_64 x86_64 x86_64 GNU/Linux
> 
>  
> 
> sensors:
> 
> ath10k_hwmon-pci-0500
> 
> Adapter: PCI adapter
> 
> temp1:        +84.0°C
> 
>  
> 
> lspci -v:
> 
> 05:00.0 Network controller: Qualcomm Atheros QCA986x/988x 802.11ac Wireless Network Adapter
> 
>     Subsystem: Device 19b6:d03c
> 
>     Flags: bus master, fast devsel, latency 0, IRQ 57
> 
>     Memory at fe200000 (64-bit, non-prefetchable) [size=2M]
> 
>     Expansion ROM at fe400000 [disabled] [size=64K]
> 
>     Capabilities: [40] Power Management version 2
> 
>     Capabilities: [50] MSI: Enable+ Count=1/8 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: ath10k_pci
> 
>     Kernel modules: ath10k_pci
> 
>  
> 
> firmware:
> 
> May 17 11:28:29 xenial kernel: ath10k_pci 0000:05:00.0: Unknown FW IE: 30
> 
> May 17 11:28:29 xenial kernel: ath10k_pci 0000:05:00.0: qca988x hw2.0 target 0x4100016c chip_id 0x043202ff sub 19b6:d03c
> 
> May 17 11:28:29 xenial kernel: ath10k_pci 0000:05:00.0: kconfig debug 0 debugfs 1 tracing 0 dfs 1 testmode 0
> 
> May 17 11:28:29 xenial kernel: ath10k_pci 0000:05:00.0: firmware ver 10.2.4.97-1-ct-swc-D-002-5558e8 api 5 features wmi-10.x,wmi-10.2,raw-mode,adaptive-cca,mfp crc32 56488b5c
> 
>  
> 
> Macbook client:
> 
> Interfaces:
> 
> en0:
> 
>   Card Type:    AirPort Extreme  (0x14E4, 0x10F)
> 
>   Firmware Version:    Broadcom BCM43xx 1.0 (7.21.95.175.1a6)
> 
>  
> 
> 
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