Re: [Fwd: Re: [patch] Real-Time Preemption, -RT-2.6.9-mm1-V0.4]

Florian Schmidt
2004-10-29T21:20:06Z

On Fri, 29 Oct 2004 22:42:20 +0200
Ingo Molnar <mingo@elte.hu> wrote:

> > compiles and boots fine. no observable change in xrun behaviour
> > though.
>
> do you compile jackd from sources? If yes then could you try the patch
> below? With this added, the kernel will produce a stackdump whenever
> jackd does an 'illegal' sleep.
>
> Also, could you do a small modification to kernel/sched.c and remove
> this line:
>
> send_sig(SIGUSR1, current, 1);
>
> just to make it easier to get Jack up and running. (by default an
> atomicity violation triggers a signal to make it easier to debug it in
> userspace, but i suspect there will be alot of such violations so jackd
> would stop all the time.)

[snip]

will do so. btw: i think i'm a bit confused right now. What debugging
features should i have enabled for this test?

flo