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Re: Installing realtime-lsm on Etch an a Half failed



On Thursday 14 August 2008 00:15:55 debian-user-digest-
request@lists.debian.org wrote:
> > On Wed,13.Aug.08, 21:26:24, Csanyi Pal wrote:
> >  
> > [...]
> >
> >> When I want to
> >>
> >> sudo aptitude install realtime-lsm
> >>
> >> I get the message:
> >>
> >> Loading Realtime Linux Security Module: not found
> >>
> >> I try to build and install realtime-lsm with module-assistant too but
> >> with no success.
> >>
> >> I need this module to make some mixed audio files in realtime.
> >>
> >> How can I install realtime-lsm on my system?
> >
> >  
> > I see in the package description:
> >
> > IMPORTANT: The realtime-lsm module is not usable with the standard
> > Debian kernel, you have to compile your own kernel. See               ▒
> > /usr/share/doc/realtime-lsm/README.Debian for more information.
> >
> > (the README.Debian file would have been the first thing to check anyway)
>
> OK
>
> I'm installing now linux-source-2.6.24. :)

I cannot say for 2.6.24 but as of 2.6.25, one cannot use realtime-lsm any 
more.

Earlier kernels, one had to compile the capabilities-lsm as a module:

CONFIG_SECURITY_CAPABILITIES=m

and then build realtime-lsm using m-a.

One can no longer do this, so are now "stuck" with the standard security 
setup. All is not lost, however. Rlimits is the default functionalities so 
place in /etc/security/limits.conf

# audio facilities:
@audio          -       rtprio          95
@audio          -       memlock         512000
@audio          -       nice            -19

and this should do the trick.

As long as you are compiling the kernel, get Ingo Mulnar's rt patch.




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