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Re: USB rt2x00 driver regression

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On 22 January 2014 17:25, Stanislaw Gruszka <sgruszka@xxxxxxxxxx> wrote:
> On Wed, Jan 22, 2014 at 12:27:44PM +0100, Sergei Antonov wrote:
>> The only problem I have now is that when connected to a particular
>> access point I get a lot of warnings like this:
>> [  327.309858] ieee80211 phy0: rt2800usb_entry_txstatus_timeout:
>> Warning - TX status timeout for entry 13 in queue 2
>> and this:
>> [  327.332847] ieee80211 phy0: rt2800usb_txdone: Warning - Got TX
>> status for an empty queue 2, dropping
>> I didn't have this problem before (with older kernels and old firmware).
>
> Does it mean that after you remove new rt2800_mcu_request() and use 0.22
> firmware with 3.13 kernel you do not have those TX status timeout
> warnings with this particular AP ?

I tried it and the warnings remained.

> On older kernels "TX status timeout" messages were only enabled if
> kernel was compiled with CONFIG_RT2X00_DEBUG option , so perhaps
> that is the reason why you did not see them on older kernel with
> older firmware. But if really TX status timeouts start to happen after
> firmware update, we should fix our driver to better talk to the
> firmware, though I do not have idea how. If not, we should probably
> disable those messages in non-debug mode as it was on old kernels.

Yes, it could have been due to CONFIG_RT2X00_DEBUG=n that I didn't
have warnings.
The warnings are printed at least since 3.9. Unfortunately, I could
not go back beyond 3.9 because of some compatibility issues between
the kernel and the rest of the system.

The AP with which I have the warnings is another Linux computer with
hostapd-2.0. Can it be the cause of this "TX status" thing?
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