31 May
2003
31 May
'03
12:11 p.m.
Is Jack meant to be run as root? I thought it was, but reading the
thread about jack start-up scripts suggested otherwise.
Howver, if I launch Jack and ladcca as a normal user, ladcca keeps
complaining that it can't read a folder in the root directory. I think
other patch apps did the same. This is partly what lead me to suppose
that Jack and associated apps had to run as root.
--
Rohan Parkes <rparkes(a)email.com>
31 May
31 May
12:27 p.m.
On 31 May 2003 23:58:12 +1000
Rohan Parkes <rparkes(a)email.com> wrote:
Is Jack meant to be run as root? I thought it was, but
reading the
thread about jack start-up scripts suggested otherwise.
Howver, if I launch Jack and ladcca as a normal user, ladcca keeps
complaining that it can't read a folder in the root directory. I
think other patch apps did the same. This is partly what lead me
to suppose that Jack and associated apps had to run as root.
You need a low latency capabilies patched kernel in order to run
JACK and relative apps aas normal user. Please read
http://www.djcj.org/LAU/guide/Low_latency-Mini-HOWTO.php3
Cheers!
--
Alexandre Prokoudine
ALT Linux Documentation Team
JabberID: avp(a)altlinux.org
1 p.m.
On Sun, 2003-06-01 at 00:15, Alexandre Prokoudine wrote:
On 31 May 2003 23:58:12 +1000
Rohan Parkes <rparkes(a)email.com> wrote:
I'm using the low latency patch from Planet-CCRMA. However, I might
consider compiling my own, because their version seems to leave out
support for some of my apps/hardware.
I still don't understand why some of the patch apps like ladcca complain
that they can't read from the root folder if I run then as a regular
user.
--
Rohan Parkes
Melbourne
Australia
Is Jack meant to be run as root? I thought it
was, but reading the
thread about jack start-up scripts suggested otherwise.
Howver, if I launch Jack and ladcca as a normal user, ladcca keeps
complaining that it can't read a folder in the root directory. I
think other patch apps did the same. This is partly what lead me
to suppose that Jack and associated apps had to run as root.
You need a low latency capabilies patched kernel in order to run
JACK and relative apps aas normal user. Please read
http://www.djcj.org/LAU/guide/Low_latency-Mini-HOWTO.php3
Cheers! 
1:35 p.m.
Rohan Parkes <rparkes(a)email.com> writes:
I still don't understand why some of the patch
apps like ladcca complain
that they can't read from the root folder if I run then as a regular
user.
With the capabilites patch, jackstart grants realtime privileges to
jackd which runs as a normal user. It intentionally does *not* grant
superuser access to the file system. You can only access files
permitted for the jackd user ID. That's a Good Thing(TM).
--
Jack O'Quin
Austin, Texas, USA
2:22 p.m.
Hi Rohan,
I think we need to ask Bob Ham about this. I see it
too.
ron
--- Rohan Parkes <rparkes(a)email.com> wrote:
Is Jack meant to be run as root? I thought it was,
but reading the
thread about jack start-up scripts suggested
otherwise.
Howver, if I launch Jack and ladcca as a normal
user, ladcca keeps
complaining that it can't read a folder in the root
directory. I think
other patch apps did the same. This is partly what
lead me to suppose
that Jack and associated apps had to run as root.
--
Rohan Parkes <rparkes(a)email.com>
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4:38 p.m.
On Saturday 31 May 2003 1:58 pm, Rohan Parkes wrote:
Is Jack meant to be run as root? I thought it was, but
reading the
thread about jack start-up scripts suggested otherwise.
Howver, if I launch Jack and ladcca as a normal user, ladcca keeps
complaining that it can't read a folder in the root directory.
jackd does not have to be run as root, and nor does it have to be run
on a kernel with capabilities or whatever.
But you do have to use one of those options if you want it to be able
to use real time scheduling, which is generally considered essential
for really predictable performance.
I personally only ever run it as a non-root user on a kernel without
capabilities support, because I only use audio infrequently and I
don't care a great deal if I get the occasional dropout under heavy
load. I'd much rather that than have jackd or an in-development JACK
application be able to disrupt my entire system. Of course JACK is
not really aimed at users like me, but so long as it works for me
too, that's fine by me.
I don't know anything about ladcca though.
Chris
7849
days inactive
7849
days old
linux-audio-user@lists.linuxaudio.org
5 comments
5 participants
participants (5)
-
Alexandre Prokoudine -
Chris Cannam -
Jack O'Quin -
R Parker -
Rohan Parkes