23 Jun
2011
23 Jun
'11
9:41 a.m.
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 bootloader
line--only then you'll get "rtirq" to do its magic as it used to do on a
genuine -rt kernel.
PS: SCHED_FF?
SCHED_FF is a process/thread attribute, not a kernel configuration
option--jack does that for you when told to run with realtime scheduling.
byee
--
rncbc aka Rui Nuno Capela
rncbc(a)rncbc.org