Re: [patch] Real-Time Preemption, -RT-2.6.10-rc2-mm1-V0.7.28-0

From: K.R. Foley
Date: Wed Nov 17 2004 - 21:39:58 EST


Ingo Molnar wrote:
i have released the -V0.7.28-0 Real-Time Preemption patch, which can be
downloaded from the usual place:

http://redhat.com/~mingo/realtime-preempt/

this is a fixes & latency-reduction release.


I know I am late reporting this but I didn't figure it out until late
this afternoon. I had trouble booting this one on my SMP workstation at
the office. It would hang after it had almost finished booting. Anyway
the solution was to disable tracing in /etc/rc.local and then re-enable
it after it has finished booting. I know this happens late in the boot
but it works for me.

echo 0 > /proc/sys/kernel/trace_enabled
#echo 0 > /proc/sys/kernel/preempt_wakeup_timing
#echo 50 > /proc/sys/kernel/preempt_max_latency

To be honest I am not sure which of the above fixes the late boot hang and I didn't have time to figure it out either. This doesn't happen on my SMP system here.

kr

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/