23 Jun
2011
23 Jun
'11
12:43 p.m.
--- On Thu, 6/23/11, Natanael Olaiz <nolaiz(a)gmail.com> wrote:
From: Natanael Olaiz <nolaiz(a)gmail.com>
Subject: Re: [LAU] Kernel 2.6.39
To: linux-audio-user(a)lists.linuxaudio.org
Date: Thursday, June 23, 2011, 6:05 AM
Hi,
Rui Nuno Capela wrote:
bootloader
no it's not. One is a boot argument, the other is a kernel compilation config option
which matters if you compile the kernel. The boot argument will of course only work at
runtime if the config option had been turned on before compiling the kernel.
J.
On 06/23/2011 07:17 AM, Ralf Mardorf wrote:
>
> I used the config from the self-build kernel
2.6.33.9-rt31 and run
> oldconfig only to configure 2.6.39. I
didn't make
music until now using
> this kernel. Yes, I wish to
"emulate" the
PREEMPT_RT, since common
PREEMPT
only kernels never did, what I needed.
What do I need to set?
$ cat config-2.6.39.1 | grep PREEMPT
CONFIG_TREE_PREEMPT_RCU=y
CONFIG_PREEMPT_RCU=y
CONFIG_PREEMPT_NOTIFIERS=y
# CONFIG_PREEMPT_NONE is not set
# CONFIG_PREEMPT_VOLUNTARY is not set
CONFIG_PREEMPT=y
IIUC this is correct?!
yes.
and don't forget to add "threadirqs" to your kernel line--only then you'll get "rtirq"
to do its magic as
it used to do on
a genuine -rt kernel.
I'm just setting up a new computer, and I also installed
the same 2.6.39
kernel...
I guess that passing "threadirqs" as a kernel argument is
equivalent to
have CONFIG_IRQ_FORCED_THREADING=y as a kernel option. Am I
right?