Re: [linux-audio-user] [JACK Fwd: strange-difficult to explain BUG]

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Subject: Re: [linux-audio-user] [JACK Fwd: strange-difficult to explain BUG]
From: Jack O'Quin (joq_AT_io.com)
Date: Fri Dec 24 2004 - 17:37:24 EET

André Alves Pereira <andre.pereira_AT_ig.com.br> writes:

> Em Sex 24 Dez 2004 00:21, Russell Hanaghan escreveu:
>
>> Shouldn't need to use jackstart if using realtime-lsm. Just run jackd as
>> user.
>>
>> R~
>
> Doesn't work:
>
> $ /usr/bin/jackd -R -dalsa -dhw:0 -r48000 -p128 -n2

> JACK: unable to mlock() port buffers: Operation not permitted
> jack_create_thread: error -1 switching current thread to rt for inheritance:
> Unknown error 4294967295
> cannot start watchdog thread
> cannot load driver module alsa

You don't have realtime permissions. Are you sure you've got the
realtime LSM loaded? How is it configured?

> With jackstart work fine...
>
> $ /usr/bin/jackstart -R -dalsa -dhw:0 -r48000 -p128 -n2

For this to work you either have linux-2.4 with the "capabilities"
patch installed, or are running linux-2.6 with an older version of
realtime-lsm with its `allcaps' option selected. If the latter, try
setting any=1 or gid=<yourgroupnumber> instead. 

-- 
  joq

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