14 Nov
2005
14 Nov
'05
9:25 p.m.
1) The current kernel from Ingo would be 2.4.16-rt9. I
think that rt5
didn;t last very long and had some problems. Please try -rt9.
OK, will do.
2) Make sure you reinstall the realtime-lsm package
after building
that kernel.
If I remember correctly this also included a PAM patch: does it still?
I will investigate.
4) Making best use of the kernel requires that you
understand the ISR
number for your sound card and reset it's priority higher. This helps
a lot in reducing or eliminating xruns.
How does one control the IRQ number of the device? I thought this was
determined by the hardware.
Can you point me to a URL so that I might learn more? (I dont really
know what terms to search for)
7) Make sure you have the Jack FIFOS mounted on tmpfs.
Of course!
As a comment, I don't personally like Jack in /usr
local. You might
consider rebuilding Jack one of these days with:
./configure --prefix=/usr
I was using a modified jack.spec file from the CVS distro of jack. I
will change my version but perhaps I should suguest this change to the
jack people as well?
Hope this all helps a bit,.
It does very much! I didnt really realize that the LSM module ran on top
of the rt patch!
Does your kernel have Default linux capabilities enabled? I cannot
remember if this is supposed to be on or off with the LSM module...
Thanks for the help Mark!
-thewade
14 Nov
14 Nov
10:09 p.m.
New subject: [linux-audio-user] Ingo's RT patch: please tell this newbie the best jack settings
On 11/14/05, thewade <pdman(a)aproximation.org> wrote:
Since the time I wrote this the -rt kernel has moved to 2.6.14-rt12.
As 2.6.14 stable has moved to 2.6.14.2 (or .3?) and the 2.6.15-rc1
candidate is out I expect that Ingo will release something new
shortly. None the less I am using 2.6.14-rt12 today. -rt9 is fine
also.
My information may possibly cause you a little heartburn. You are used
to using RPMs and basically the tools available through the Planet. I
am Gentoo based and am more used to using source code. I do not know
exactly how these two are going to mix, other than to say that either
is probably fine but mixing the two too much is posibly not a good
idea. I think it is fine to build your own kernel and the realtime-lsm
package on a Planet box. I used to do that when I used the Planet. I
do not recommend that a new user go any further than that as problem
may occur.
Do not worry about this until you are running 2.6.14-rt9/rt12. Deal
with it ONLY when you have that kernel running. We'll direct you at
the proper time.
Well, I think .spec files mean you are using RPMs? Again, I don't do
this. I download CVS and build the source code. I do not know what the
.spec file is going to do so I cannot help there.
If you want to build the executable directly from the CVS code then I can help.
Realtime-lsm runs on top of ALL later revisions of the 2.6 kernel.
Certainly it works for any 2.6.13 or higher kernel. All that is
required is that you enable certain security features when you build
your kernel.
1) The current
kernel from Ingo would be 2.4.16-rt9. I think that rt5
didn;t last very long and had some problems. Please try -rt9.
OK, will do. 2) Make sure you reinstall the realtime-lsm
package after building
that kernel.
If I remember correctly this also included a PAM patch: does it still?
I will investigate. 4) Making best use of the kernel requires that
you understand the ISR
number for your sound card and reset it's priority higher. This helps
a lot in reducing or eliminating xruns.
How does one control the IRQ number of the device? I thought this was
determined by the hardware.
Can you point me to a URL so that I might learn more? (I dont really
know what terms to search for) 7) Make sure you have the Jack FIFOS mounted on
tmpfs.
Of course!
As a comment, I don't personally like Jack in
/usr local. You might
consider rebuilding Jack one of these days with:
./configure --prefix=/usr
I was using a modified jack.spec file from the CVS distro of jack. I
will change my version but perhaps I should suguest this change to the
jack people as well? Hope this all helps a bit,.
It does very much! I didnt really realize that the LSM module ran on top
of the rt patch! Does your kernel have Default linux capabilities
enabled? I cannot
remember if this is supposed to be on or off with the LSM module...
It must be on as a module.
Thanks for the help Mark!
You are welcome.
Cheers,
Mark
6951
days inactive
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days old
linux-audio-user@lists.linuxaudio.org
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Mark Knecht -
thewade