Re: [proaudio] realtime problems (maybe pam)

[Frieder Bürzele <evermind@xxxxxxxxxxxxx>]

Mysth-R wrote:
> Hi,
> 
> Does it works when you run jack with root ?

yes

> What did you put in your limits.conf file ?


#REALTIME support for audio group users
@audio          -       rtprio            99
@audio          -       nice            -20
@audio          -       memlock         500000



> 
> I think this is just a permission issue...
> cheers,
> Mysth-R
> 
> 2008/9/30 Frieder Bürzele <evermind@xxxxxxxxxxxxx
> <mailto:evermind@xxxxxxxxxxxxx>>
> 
>     Hi folks,
> 
>     I've switched to amd64 and now hav the problem not getting realtime
>     stuff running
>     ATM I'm using sabayon-gentoo-linux as a base -- later I want to
>     switch to new gentoo install,
>     but for now I hav to get realtime stuff working with this distro
> 
>     I think I've setup pam correctly (user into autogroup, params added
>     to limits.conf),
>     pam version is 1.0.2
> 
> 
>     ulimit -r gives me 99
>     as set in pam securiy stuff
> 
>     the kernel config gives me:
> 
>     zcat /proc/config.gz |grep -v '#' |grep 'CONFIG_SECURITY'
>     CONFIG_SECURITY=y
>     CONFIG_SECURITY_DEFAULT_MMAP_MIN_ADDR=0
> 
> 
>     I'm using 2.6.27-rc6-git5: The config options
>     CONFIG_SECURITY_CAPABILITIES
>     is gone -- now it is compiled per default into the kernel
> 
> 
>     I don't think that pam fools me as set_rlimits also won't work:
> 
>     set_rlimits -d /usr/bin/jackd -R -d alsa
>     Matching config file entry: user/group=@audio, prog=/usr/bin/jackd,
>     max_nice=-1, max_rt=85, max_mlock=-1
>     `nice' getrlimit returned 0;   current `nice' rlimits: soft=40, hard=40
>     `rtprio' getrlimit returned 0;   current `rtprio' rlimits: soft=99,
>     hard=99
>     `memlock' getrlimit returned 0;   current `memlock' rlimits:
>     soft=500000, hard=500000
>     `rtprio' rlimit requested: 85
>     `rtprio' setrlimit returned 0
>     `nice' getrlimit returned 0; new `nice' rlimits: soft=40, hard=40
>     `rtprio' getrlimit returned 0; new `rtprio' rlimits: soft=85, hard=85
>     `memlock' getrlimit returned 0; new `memlock' rlimits: soft=500000,
>     hard=500000
>     jackd 0.112.1
>     Copyright 2001-2005 Paul Davis and others.
>     jackd comes with ABSOLUTELY NO WARRANTY
>     This is free software, and you are welcome to redistribute it
>     under certain conditions; see the file COPYING for details
> 
>     JACK compiled with System V SHM support.
>     cannot use real-time scheduling (FIFO at priority 10) [for thread
>     -915171600, from thread -915171600] (1: Operation not permitted)
>     cannot create engine
> 
> 
> 
>     output with just pam
>     jackd  alsa gives me
> 
>     jackd -R -d alsa
> 
>     JACK compiled with System V SHM support.
>     cannot use real-time scheduling (FIFO at priority 10) [for thread
>     -23361808, from thread -23361808] (1: Operation not permitted)
>     cannot create engine
> 
> 
> 
> 
>     what else could give be the cause of not getting realtime stuff working?
> 
>     thx
> 
>     Greetz Frieder
> 
> 
> 
> 
> 
> -- 
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