Re: bug report for ath9k_htc driver

[Oleksij Rempel <linux@rempel-privat.de>]

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Am 13.01.2015 um 23:46 schrieb Jeremy Audet:
> Grr. I'm sending this again. My first email was filtered by kernel
> mailing list due to the presence of HTML in the message.
> 
> Hi again,
> 
> The USB hub has arrived. [1] I ran through the same test procedure as last time:
> 
> 1. Start collecting logging info with `journalctl -k --follow -n 0`.
> 2. Plug in the hub, if appropriate. Plug in the TL-WN722N.
> 3. Bring up the adapter with `ip link set dev $device up`.
> 4. Wait for an error.
> 
> My test system has changed slightly since I last ran this test, so I
> made sure to run the test twice: once without a USB hub, and once with
> a USB hub. When I ran this test without the USB hub, the kernel
> immediately emitted gobs of messages and the TL-WN722N was immediately
> demoted to a full-speed device. I didn't even have a chance to bring
> up the device with `ip link set dev $device up`. [2] When I ran this
> test with a USB hub, the kernel did eventually emit gobs of messages,
> but lead-up to that failure did contain some new error messages.
> 
> I mentioned that my test system has changed. In particular, I've added
> a new PCI wireless adapter to the system. [4] I've also installed some
> updates, but it is worth noting that the software listed in my
> original email has not changed:
> 
>     $ uname -a
>     Linux pine 3.17.6-1-ARCH #1 SMP PREEMPT Sun Dec 7 23:43:32 UTC
> 2014 x86_64 GNU/Linux
>     $ ip -V
>     ip utility, iproute2-ss141009
>     $ netctl --version
>     netctl version 1.9
> 
> —Jeremy 'Ichimonji10' Audet
> 
> [1] http://i.imgur.com/TdlwxIC.jpg
> [2] http://www.ichimonji10.name/downloads/2015-01-13-p3-new-nohub.txt
> [3] http://www.ichimonji10.name/downloads/2015-01-13-p3-new-hub.txt
> [4] Output from lspci -v:
> 04:05.0 Network controller: Ralink corp. RT3060 Wireless 802.11n 1T/1R
>         Subsystem: Edimax Computer Co. Device 7711
>         Flags: bus master, slow devsel, latency 32, IRQ 20
>         Memory at fe900000 (32-bit, non-prefetchable) [size=64K]
>         Capabilities: <access denied>
>         Kernel driver in use: rt2800pci
>         Kernel modules: rt2800pci
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Looks like with the hub it can work at least some hours. Correct?

Lets try to reduce interrupt traffic on usb by disabling led blinking
with this command:
sudo bash -c "echo none > /sys/class/leds/ath9k_htc-phy*/trigger"

-- 
Regards,
Oleksij


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