Re: 2.6.19-rc6-rt7: Kernel BUG at kernel/rtmutex.c:672

From: Fernando Lopez-Lezcano
Date: Tue Nov 28 2006 - 16:36:43 EST


On Tue, 2006-11-28 at 21:06 +0100, Ingo Molnar wrote:
> * Fernando Lopez-Lezcano <nando@xxxxxxxxxxxxxxxxxx> wrote:
>
> > (a normal non-root user was left logged in and was running jackd with
> > realtime privileges, irqs' priority reordered with the rtirq script -
> > I was getting, and still are under -rt8, lots of audio xruns but
> > that's for another thread).
>
> do you get those xruns even with maxcpus=1? I.e. is it an SMP-only
> regression - or is UP affected too? [if it's UP then it would be simpler
> to trace that xrun]

It appears to be smp related, I just booted with maxcpus=1 and I'm
seeing a lot less in terms of xruns (three so far in the range 0.029 to
0.041 ms).

-- Fernando


-
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/