Re: regression: rt2561 frequent "Arrived at non-free entry" errors in 2.6.32

[Tim Blechmann <tim@klingt.org>]

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On 12/06/2009 02:40 PM, Gertjan van Wingerde wrote:
> On 12/05/09 00:32, Andi Kleen wrote:
>> [Rafael, something for your regression list]
>>
>> I upgraded a system which was running 2.6.30 to 2.6.32.
>> It has a 
>>
>> 06:02.0 Network controller: RaLink RT2561/RT61 802.11g PCI
>>
>> wireless PCI card. Now regularly even under moderate traffic
>> I see messages like
>>
>> phy0 -> rt2x00queue_write_tx_frame: Error - Arrived at non-free entry in the non-full queue 2.
>> Please file bug report to http://rt2x00.serialmonkey.com.
>>
>> and loss of connectivity, often until the wireless connection
>> is restarted. This wasn't the case in 2.6.30, there the driver
>> ran stable without any problems. The problem currently
>> happens every few minutes.
>>
> 
> Andi, Tim,
> 
> Both of you have reported this problem on 2.6.32.
> 
> In the past this always has occurred due to queue locking problems. This led me
> to audit the queue locking code, and that certainly looked suspicious to me.
> 
> Would you be able to test whether the attached test patch fixes the problem for
> you. The patch basically applies proper queue locking to the code, although in 
> a very course manner. The patch is relative to 2.6.32.
> 
> Note: I am not 100% sure that this is where the problem is, but at least the test
> patch should confirm whether I am searching in the right direction.

the patch didn't cleanly apply to v2.6.32 and the patched kernel didn't
boot ... which tree should it be applied on?

tim

-- 
tim@klingt.org
http://tim.klingt.org

Im übrigen ist es gescheiter, sich warm zuzudecken als sich zu
betrinken.
  Werner Schwab


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