29 Nov
2006
29 Nov
'06
6:18 a.m.
I found
http://repos.opensuse.org/home:/appleonkel/SUSE_Linux_10.1/i586/kernel-rt-d…
on the internet while looking for info on how to patch a realtime kernel
in suse 10.1. I'm having some problems with it (it didn't boot; I used rpm
-i ... to install it) and so if anyone has any experience with this or
advice for SUSE 10.1 (I'm leaving suse soon anyway -- heading to DeMuDi)
then I'd appreciate. I understand that patching a kernel for suse 10.1
with a realtime patch is non-trivial.
Any help appreciated.
Jonty
29 Nov
29 Nov
6:26 a.m.
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J M Needham schrieb:
I found
http://repos.opensuse.org/home:/appleonkel/SUSE_Linux_10.1/i586/kernel-rt-d…
on the internet while looking for info on how to patch a realtime kernel
in suse 10.1. I'm having some problems with it (it didn't boot; I used rpm
-i ... to install it) and so if anyone has any experience with this or
advice for SUSE 10.1 (I'm leaving suse soon anyway -- heading to DeMuDi)
then I'd appreciate. I understand that patching a kernel for suse 10.1
with a realtime patch is non-trivial.
Any help appreciated.
Jonty
try http://jacklab.net
greetz
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1 p.m.
On 11/29/06, J M Needham <J.M.Needham(a)bath.ac.uk> wrote:
I found
http://repos.opensuse.org/home:/appleonkel/SUSE_Linux_10.1/i586/kernel-rt-d…
on the internet while looking for info on how to patch a realtime kernel
in suse 10.1. I'm having some problems with it (it didn't boot; I used rpm
-i ... to install it) and so if anyone has any experience with this or
advice for SUSE 10.1 (I'm leaving suse soon anyway -- heading to DeMuDi)
then I'd appreciate. I understand that patching a kernel for suse 10.1
with a realtime patch is non-trivial.
Any help appreciated.
Jonty
Maybe patching a Suse kernel to -rt is non-trivial, but why not just
try out the vanilla realtime kernel using the stuff from Ingo's site?
http://people.redhat.com/mingo/realtime-preempt/
I run Gentoo but never use Gentoo kernels.
Good luck,
Mark
2:40 p.m.
Mark Knecht wrote:
Maybe patching a Suse kernel to -rt is non-trivial, but why not just
try out the vanilla realtime kernel using the stuff from Ingo's site?
http://people.redhat.com/mingo/realtime-preempt/
I run Gentoo but never use Gentoo kernels.
Just for completeness, are you using the kernel from your link?
2:57 p.m.
Hi Brad,
Not exactly. The link is the leading edge kernel which at this time
is base don a release candidate. I often build them for testing but
I'm currently having trouble with the realtime-lsm package with
2.6.19_rc6 so I have run them.
Underneath that directory there is repository of all the older ones
goign back to 2.6.13 I think. I'm currently running 2.6.18-rt7 from
the Gentoo proaudio overlay which checks all the stuff out for me and
patches it before I build it:
mark@lightning ~ $ uname -a
Linux lightning 2.6.18-rt7 #2 PREEMPT Mon Oct 23 12:15:41 PDT 2006
x86_64 AMD Athlon(tm) 64 Processor 3000+ AuthenticAMD GNU/Linux
mark@lightning ~ $
mark@lightning ~ $ eix -I rt-sources
* sys-kernel/rt-sources [1]
Available versions: 2.6.15-r21 2.6.16-r29 2.6.17_rc6-r5
2.6.17-r5 2.6.17-r7 *2.6.17-r8 2.6.18-r5 2.6.18-r6 2.6.18-r7
2.6.19_rc6-r4 2.6.19_rc6-r7 2.6.19_rc6-r8
Installed: 2.6.15-r21 2.6.16-r16 2.6.18-r7 2.6.19_rc6-r8
Homepage:
Description: Ingo Molnars realtime patch applied on vanilla
[1] /usr/portage/local/layman/pro-audio
mark@lightning ~ $
Hope this helps,
Mark
On 11/29/06, Brad Fuller <brad(a)sonaural.com> wrote:
Mark Knecht wrote:
Maybe patching a Suse kernel to -rt is non-trivial, but why not just
try out the vanilla realtime kernel using the stuff from Ingo's site?
http://people.redhat.com/mingo/realtime-preempt/
I run Gentoo but never use Gentoo kernels.
Just for completeness, are you using the kernel from your link?
3:11 p.m.
Mark Knecht wrote:
Hi Brad,
Not exactly. The link is the leading edge kernel which at this time
is base don a release candidate. I often build them for testing but
I'm currently having trouble with the realtime-lsm package with
2.6.19_rc6 so I have run them.
Underneath that directory there is repository of all the older ones
goign back to 2.6.13 I think. I'm currently running 2.6.18-rt7 from
the Gentoo proaudio overlay which checks all the stuff out for me and
patches it before I build it:
mark@lightning ~ $ uname -a
Linux lightning 2.6.18-rt7 #2 PREEMPT Mon Oct 23 12:15:41 PDT 2006
x86_64 AMD Athlon(tm) 64 Processor 3000+ AuthenticAMD GNU/Linux
mark@lightning ~ $
mark@lightning ~ $ eix -I rt-sources
* sys-kernel/rt-sources [1]
Available versions: 2.6.15-r21 2.6.16-r29 2.6.17_rc6-r5
2.6.17-r5 2.6.17-r7 *2.6.17-r8 2.6.18-r5 2.6.18-r6 2.6.18-r7
2.6.19_rc6-r4 2.6.19_rc6-r7 2.6.19_rc6-r8
Installed: 2.6.15-r21 2.6.16-r16 2.6.18-r7 2.6.19_rc6-r8
Homepage:
Description: Ingo Molnars realtime patch applied on vanilla
[1] /usr/portage/local/layman/pro-audio
mark@lightning ~ $
Hope this helps,
Thanks Mark. I've finally got gentoo working. It took me a week and a
half to get it to a point of just running KDE. I'll check out the
pro-audio overlay. All this is new to me :-)
brad
6:31 p.m.
J M Needham <J.M.Needham(a)bath.ac.uk> schrieb:
This is the testing version, the known to work you can download from
ftp://ftp-1.gwdg.de/pub/linux/misc/jacklab/SUSE-10.1/RPMS/i586
What is the error?
on the internet while looking for info on how to patch
a
realtime kernel in suse 10.1. I'm having some problems with it (it
didn't boot; I used rpm -i ... to install it) and so if anyone has any
There is already a guide HowTo install:
http://jacklab.net/userwiki/index.php/Nerd_3_Steps_to_JAD#Install_kernel_an…
experience with this or advice for SUSE 10.1 (I'm
leaving suse soon
anyway -- heading to DeMuDi) then I'd appreciate. I understand that
patching a kernel for suse 10.1 with a realtime patch is non-trivial.
Yeah
Any help appreciated.
Jonty
Olli
1 Dec
1 Dec
4:47 a.m.
On Wed, 29 Nov 2006, Oliver Bengs wrote:
I found this but the problem I had was that the wget calls
wget
http://ftp.gwdg.de/pub/opensuse/repositories/home:/rbos/SL-10.1_i586/i586/a…
wget
http://ftp.gwdg.de/pub/opensuse/repositories/home:/rbos/SL-10.1_i586/i586/a…
returned 404's. Does anyone know what's going on with the Jack repository
as I can't add it as a source.
J M Needham <J.M.Needham(a)bath.ac.uk> schrieb:
This is the testing version, the known to work you can download from
ftp://ftp-1.gwdg.de/pub/linux/misc/jacklab/SUSE-10.1/RPMS/i586
What is the error?
I don't know. [basic newbie face] there's lots and lots of seemingly
random characters and I don't know how to dump the output to a file, or if
it is dumped to which file it is. (if that makes any sense).
on the
internet while looking for info on how to patch a
realtime kernel in suse 10.1. I'm having some problems with it (it
didn't boot; I used rpm -i ... to install it) and so if anyone has any
There is already a guide HowTo install:
http://jacklab.net/userwiki/index.php/Nerd_3_Steps_to_JAD#Install_kernel_an…
experience
with this or advice for SUSE 10.1 (I'm leaving suse soon
anyway -- heading to DeMuDi) then I'd appreciate. I understand that
patching a kernel for suse 10.1 with a realtime patch is non-trivial.
Yeah
Any help appreciated.
Jonty
Olli
8:38 a.m.
J M Needham <J.M.Needham(a)bath.ac.uk> schrieb:
<snip>
I found this but the problem I had was that the wget calls
wget
http://ftp.gwdg.de/pub/opensuse/repositories/home:/rbos/SL-10.1_i586/i586/a…
wget
http://ftp.gwdg.de/pub/opensuse/repositories/home:/rbos/SL-10.1_i586/i586/a…
returned 404's. Does anyone know what's going on with the Jack
repository as I can't add it as a source.
The version has changed:
wget
http://ftp.gwdg.de/pub/opensuse/repositories/home:/rbos/SL-10.1_i586/i586/a…
and
wget
http://ftp.gwdg.de/pub/opensuse/repositories/home:/rbos/SL-10.1_i586/i586/a…
but since 10.1 I prefer to use smart, it is on the Installation CD/DVD.
You can install it with Yast.
experience with this or advice for SUSE 10.1 (I'm
leaving suse
soon anyway -- heading to DeMuDi) then I'd appreciate. I
understand that patching a kernel for suse 10.1 with a realtime
patch is non-trivial.
Yeah
Any help appreciated.
Jonty
Olli
30 Nov
30 Nov
6:12 a.m.
New subject: [linux-audio-user] Realtime kernel.
Wednesday 29 November 2006 11:17, J M Needham:
I found
http://repos.opensuse.org/home:/appleonkel/SUSE_Linux_10.1/i586/kernel-rt-d
efault-2.6.18-8.5.i586.rpm on the internet while looking for info on how to
patch a realtime kernel in suse 10.1. I'm having some problems with it (it
didn't boot; I used rpm -i ... to install it) and so if anyone has any
experience with this or advice for SUSE 10.1 (I'm leaving suse soon anyway
-- heading to DeMuDi) then I'd appreciate. I understand that patching a
kernel for suse 10.1 with a realtime patch is non-trivial.
Any help appreciated.
Jonty
"Working with the suse 2.6.x kernel sources" at
http://www.suse.de/~agruen/kernel-doc/ is a generic recipe for building suse
kernels. One of the more relevant chapters would be "Patch selection
mechanism" that tells you how to fly in different patchsets.
There's a catch: Applying ingo-rt to a fully suse-patched kernel will break
things. The tricky part would be to identify interfering suse-patches that
are dispensable. This is what JAD does. It's a mess.
If what you want is keep *all* of suse's structure plus reliable low-latency
audio performance you'd follow the same recipe and change some of kernel's
configuration like stronger preemption (CONFIG_PREEMPT=y) instead of
voluntary, CONFIG_HZ_1000=y instead of 250 etc. plus blame suse out loud for
not doing so in the first place.
No ingo-rt here and and still -p 16 (~0.7 ms one way latency) is quite
useable.
--
Wolfgang
6365
days inactive
6367
days old
linux-audio-user@lists.linuxaudio.org
9 comments
6 participants
participants (6)
-
Brad Fuller -
J M Needham -
lala -
Mark Knecht -
Oliver Bengs -
Wolfgang Woehl