Re: [LAU] options for hard real time kernel for raring 13.04

From: Rafael Vega <email.rafa@email-addr-hidden>
Date: Wed Sep 11 2013 - 18:04:39 EEST

Have you looked at the KXStudio repos? They have a rt kernel that I have
used successfully with Ubuntu 12.04 and 13.04 and it's really simple to
install. They are currently moving from Ubuntu to Debian repos so their
how-to in http://kxstudio.sourceforge.net/Repositories is broken, just look
at these repos: https://launchpad.net/~kxstudio-team/+archive/kernel/

On Wed, Sep 11, 2013 at 9:47 AM, Marco Donnarumma <devel@email-addr-hiddenwrote:

> sorry, had forgot the link, see the 4th reply at
> http://askubuntu.com/questions/72964/how-can-i-install-a-realtime-kernel
>
> --
> Marco Donnarumma
> New Media + Sonic Arts Practitioner, Performer, Teacher, Director.
> Embodied Audio-Visual Interaction Research Team.
> Department of Computing, Goldsmiths University of London
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Portfolio: http://marcodonnarumma.com
> Research: http://res.marcodonnarumma.com
> Director: http://www.liveperformersmeeting.net
>
>
> On Wed, Sep 11, 2013 at 4:46 PM, Marco Donnarumma <devel@email-addr-hiddenwrote:
>
>> update:
>>
>> 1_ tried to install 3.10-2-rt-686-pae_3.10.7-1_i386.deb from
>> http://packages.debian.org/jessie/linux-image-3.10-2-rt-686-pae, but it
>> didn't like my initramfs-tools version (apparently too old for the new
>> kernel) and installed without configuration so had to remove. See log:
>>
>> dpkg: dependency problems prevent configuration of initramfs-tools:
>> linux-image-3.10-2-rt-686-pae (3.10.7-1) breaks initramfs-tools (<<
>> 0.110~) and is unpacked but not configured.
>> Version of initramfs-tools to be configured is 0.103ubuntu0.7.
>>
>> 2_ my low-latency kernel is 3.8.0*. I compiled my own rt-kernel, using
>> http://www.kernel.org/pub/linux/kernel/v3.x/linux-3.2.48.tar.bz2 and its
>> related rt patch, as in the tutorial that Jeremy posted. The kernel
>> compiles and installs fine, but when I load it from grub, Mint load
>> correctly, and then (before seeing anything on screen) my screen goes
>> black. Nothing to do there, tried to use hotkeys to get a tty, restart, or
>> shutdown, but had only to push the power button.
>>
>> It's probably an nvidia driver-related issue, am I correct?
>>
>> Found some suggestions about patching the nvidia driver with some custom
>> code here [1], but the driver they use there is quite old. And last time I
>> had fiddled with nvidia driver it was the most painful experience ever... :)
>>
>> Will investigate further, please throw me suggestions if any,
>>
>> I might ask falkTX how he sees the rt-kernel for 13.04. I saw there is
>> some working on Launchpad, but they are last modified sept. 2012 (?).
>>
>> thank you!
>> best,
>> M
>>
>> [1]
>>
>>
>>
>> --
>> Marco Donnarumma
>> New Media + Sonic Arts Practitioner, Performer, Teacher, Director.
>> Embodied Audio-Visual Interaction Research Team.
>> Department of Computing, Goldsmiths University of London
>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> Portfolio: http://marcodonnarumma.com
>> Research: http://res.marcodonnarumma.com
>> Director: http://www.liveperformersmeeting.net
>>
>>
>> On Wed, Sep 11, 2013 at 2:02 PM, Marco Donnarumma <devel@email-addr-hiddenwrote:
>>
>>> Did you consider building your own kernel? I'm using self-built RT
>>>> kernels on Ubuntu 12.04 and that works great:
>>>>
>>>> http://wiki.linuxaudio.org/wiki/system_configuration#build_your_own_real-time_kernel
>>>> And are you using rtirq?
>>>> Alessio Abogani stopped maintaining th RT kernels for Ubuntu quite a
>>>> while ago. You might want to ask falkTX about the possibilities of
>>>> offering a raring RT kernel.
>>>>
>>>> Best,
>>>>
>>>> Jeremy
>>>>
>>>>
>>> Hey Jeremy!
>>>
>>> Yes, that's the other thing I will try now, good to know it works on
>>> 12.04.
>>>
>>> My pain in the a... is that I have to use nvidia drivers, and had
>>> troubles some time ago with them and rt-kernels.
>>>
>>> Do you happen to know whether I need to patch nvidia support into the
>>> rt-kernel I build? (I guess so... just to be sure)
>>>
>>> thanks!
>>> best,
>>> M
>>>
>>>
>>>
>>
>
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>

-- 
Rafael Vega
email.rafa@email-addr-hidden

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Received on Thu Sep 12 04:15:03 2013

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