On Wed, 2009-12-16 at 11:08 +0530, Sachin Sant wrote:
> Peter Zijlstra wrote:
> > Could you try the below?
> >
> No luck. Still the same issue. The mask values don't change.
Bugger, that patch did solve a similar problem for a patch I'm working
on.
Can you maybe add a print of the cpu_active_mask() in set_cpu_active()
using WARN() so we can see where it changes the mask, and why it things
its empty?
> > ---
> > init/main.c | 7 +------
> > 1 files changed, 1 insertions(+), 6 deletions(-)
> >
> > diff --git a/init/main.c b/init/main.c
> > index 4051d75..4be7de2 100644
> > --- a/init/main.c
> > +++ b/init/main.c
> > @@ -369,12 +369,6 @@ static void __init smp_init(void)
> > {
> > unsigned int cpu;
> >
> > - /*
> > - * Set up the current CPU as possible to migrate to.
> > - * The other ones will be done by cpu_up/cpu_down()
> > - */
> > - set_cpu_active(smp_processor_id(), true);
> > -
> > /* FIXME: This should be done in userspace --RR */
> > for_each_present_cpu(cpu) {
> > if (num_online_cpus() >= setup_max_cpus)
> > @@ -486,6 +480,7 @@ static void __init boot_cpu_init(void)
> > int cpu = smp_processor_id();
> > /* Mark the boot cpu "present", "online" etc for SMP and UP case */
> > set_cpu_online(cpu, true);
> > + set_cpu_active(cpu, true);
> > set_cpu_present(cpu, true);
> > set_cpu_possible(cpu, true);
> > }
> >
> >
> >
>
>
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