23 Sep
2004
23 Sep
'04
6:41 p.m.
* Rui Nuno Capela <rncbc(a)rncbc.org> wrote:
All my VP trials have been conducted with ALL those
CONFIG_ options
turned ON. I've been just tweaking on softirq-preempt and
hardirq-preempt boot prompt arguments. However tweaking these only
affects the ability for running jackd -R without instant lockup.
Again, the only viable combination has been softirq-preempt=0 and
hardirq-preempt=0.
Rest assured that's when I unset CONFIG_SCHED_SMT things get pretty
much better.
ok, some progress: managed to reproduce the jackd instant lockup on my
P4 HT SMP box. (hacked my kernel to ignore the second CPU's ACPI entries
so that i got a single-physical-CPU HT setup. The box has the same i8x0
sound stuff as your box.)
not much debug info yet, but it's not a classic hard lockup. It rather
seems to be jackd (or the kernel) looping indefinitely. Keyboard doesnt
work because it's threaded by default ...
more later.
Ingo