chuckk, i can only try to guess.
perhaps sudo on your system is not allowed to do chrt?
on my system i have the file /etc/sudoers containing this two important
lines:

root    ALL=(ALL) ALL
nowhiskey       ALL=NOPASSWD: ALL

don't know if it could be the root of the problem, because if so, i
would expect something like 'operation not permitted' error, but who knows.

cheers,
doc
>
> My kernel has:
> # CONFIG_PREEMPT_NONE is not set
> # CONFIG_PREEMPT_VOLUNTARY is not set
> # CONFIG_PREEMPT_DESKTOP is not set
> CONFIG_PREEMPT_RT=y
> CONFIG_PREEMPT=y
> CONFIG_PREEMPT_SOFTIRQS=y
> CONFIG_PREEMPT_HARDIRQS=y
> CONFIG_PREEMPT_BKL=y
> # CONFIG_CLASSIC_RCU is not set
> CONFIG_PREEMPT_RCU=y
>
> /etc/security/limits.conf has:
> @audio         -     nice         -10
> @audio         -     rtprio         99
> @audio         -     memlock     4000000 (someone on the jack list
> suggested that my previous value "unlimited" was not recognized, so I
> stuck this in but no change)
>
> and user "chuckk" is in group "audio".
>
> Lastly, the output from my script when the second sudo chrt line is
> commented out:
> ------------------------------
> pid 684's current scheduling policy: SCHED_FIFO
> pid 684's current scheduling priority: 82
> jackd 0.103.0
> 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.
> pid 5132's current scheduling policy: SCHED_OTHER
> pid 5132's current scheduling priority: 0
> loading driver ..
> Enhanced3DNow! detected
> SSE2 detected
> apparent rate = 44100
> creating alsa driver ... hw:0|-|256|2|44100|0|0|nomon
> |swmeter|-|32bit
> control device hw:0
> configuring for 44100Hz, period = 256 frames, buffer = 2 periods
> ALSA: final selected sample format for playback: 32bit little-endian
> ALSA: use 2 periods for playback
>
> --------------------------------------
>
> Any ideas what I may have missed or misconfigured?
>
> Thanks!
> -Chuckk
>
>
> --
> http://www.badmuthahubbard.com
> ------------------------------------------------------------------------
>
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> Linux-audio-user@lists.linuxaudio.org
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>

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