Re: [Jack-Devel] Place for bug reporting

Any ideas about segmentation fault with jackd1? Because I cann't even 
try to increase number of periods.

04.06.2014 11:44, TimKa пишет:
> Hi Chris, thanks for reply!
> I have a 720MHz ARM CPU which have only one heavy task (it's jackd). 
> Also I patch my kernel to PREEMPT_RT support, change governor to 
> performance, change linux interrupt frequency to 1000HZ (SETUP_HZ_1000 
> and SETUP_HZ=1000) and recheck CPU frequency (720Mhz). Do you think 
> this hardware is not suitable my scheme? With my simple network 
> clients (before xruns occur) I have CPU load about 4-5%, but I didn't 
> solve the synchronisation task yet, so both ends have own 
> synchronisation (this task will be done by jitter buffer and voice 
> detector) and the same sample rate. But as I said earlier after 
> software got xrun loop CPU became highly loaded so even console is not 
> working properly and I forced to reset board. Thanks for your tip I 
> will check sound generator with netone and return back.
>
> 04.06.2014 1:15, Chris Caudle пишет:
>> On Tue, June 3, 2014 8:28 am, TimKa wrote:
>> [ description of network setup which resulted in overruns, including
>> messages:]
>>
>>    JackEngine::XRun: client = alsa_in was not finished, state = 
>> Triggered
>>    JackEngine::XRun: client = alsa_out was not finished, state = 
>> Triggered
>>
>> The alsa_in and alsa_out clients perform real time resampling in 
>> order to
>> accomodate the sampling clock differences between the netjack master and
>> the local hardware sampling clock.  The error messages show that alsa_in
>> and alsa_out are causing the xruns, so likely the processor you have 
>> does
>> not have the performance needed for real time resampling, or there is
>> something in the alsa_in and alsa_out code which does not compile 
>> well on
>> ARM 32 bit.
>>
>> You could verify that by removing the need for alsa_in and alsa_out by
>> generating audio on the netjack slave rather than using the audio
>> hardware, either synthesize audio signals or play back a pre-recorded
>> file.
>>
>
> 
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