[ath9k-devel] ath9k hangs with recent backports

[ath9k-devel] ath9k hangs with recent backports

[Marty Faltesek]

We are seeing a hang on ath9k where traffic and beacons stops anywhere
from a few minutes to half a day. Log output continues. With debug
enabled, we see this during the hang:

ath: phy0: tx hung, resetting the chip.

The issue was not observed in backports 3.19-rc1, but in recent
backports, the issue was first noted going as far back as
backports-20150222 (perhaps earlier,  still checking). We still see
the hang in linux-next as recent as next-20150729.

Configuration:
        dual-core ARM Freescale LS1024A (f.k.a. Mindspeed Comcerto 2000)
        AR9300

Thanks for any pointers.

[ath9k-devel] ath9k hangs with recent backports

[Benjamin Berg]

On Di, 2015-08-04 at 16:33 -0400, Marty Faltesek wrote:
> We are seeing a hang on ath9k where traffic and beacons stops anywhere
> from a few minutes to half a day. Log output continues. With debug
> enabled, we see this during the hang:
> 
> ath: phy0: tx hung, resetting the chip.
> 
> The issue was not observed in backports 3.19-rc1, but in recent
> backports, the issue was first noted going as far back as
> backports-20150222 (perhaps earlier,  still checking). We still see
> the hang in linux-next as recent as next-20150729.
> 
> Configuration:
>         dual-core ARM Freescale LS1024A (f.k.a. Mindspeed Comcerto 2000)
>         AR9300

We seem to be seeing a similar issue here where devices become
unresponsive via wifi and the TX path hang counter keeps increasing. We
are seeing this using backports 2014-11-04 (openwrt). The hardware is
an AR9331 SoC.

Were you able to narrow down the issue any further in the meantime?

Benjamin
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[ath9k-devel] ath9k hangs with recent backports

[Marty Faltesek]

On Fri, Sep 18, 2015 at 8:03 AM, Benjamin Berg
<benjamin@sipsolutions.net> wrote:
> On Di, 2015-08-04 at 16:33 -0400, Marty Faltesek wrote:
>> We are seeing a hang on ath9k where traffic and beacons stops anywhere
>> from a few minutes to half a day. Log output continues. With debug
>> enabled, we see this during the hang:
>>
>> ath: phy0: tx hung, resetting the chip.
>>
>> The issue was not observed in backports 3.19-rc1, but in recent
>> backports, the issue was first noted going as far back as
>> backports-20150222 (perhaps earlier,  still checking). We still see
>> the hang in linux-next as recent as next-20150729.
>>
>> Configuration:
>>         dual-core ARM Freescale LS1024A (f.k.a. Mindspeed Comcerto 2000)
>>         AR9300
>
> We seem to be seeing a similar issue here where devices become
> unresponsive via wifi and the TX path hang counter keeps increasing. We
> are seeing this using backports 2014-11-04 (openwrt). The hardware is
> an AR9331 SoC.
>
> Were you able to narrow down the issue any further in the meantime?
>
> Benjamin

Turns out what I saw was due to a local mis-merge. So we are no longer
seeing it.