On Mon, 8 Apr 2013, Borislav Petkov wrote:
> On Mon, Apr 08, 2013 at 11:24:14AM +0200, Thomas Gleixner wrote:
> > + /* Rebind ourself to the target cpu */
> > + if (test_bit(KTHREAD_IS_PER_CPU, &self->flags)) {
> > + set_cpus_allowed_ptr(currrent, cpumask_of(self->cpu));
>
> "currren
On Mon, Apr 08, 2013 at 11:24:14AM +0200, Thomas Gleixner wrote:
> On Sun, 7 Apr 2013, Borislav Petkov wrote:
>
> > On Sun, Apr 07, 2013 at 11:20:10AM +0200, Thomas Gleixner wrote:
> > > And it's even more bogus because the cpu to which we would bind in
> > > kthread_create_on_cpu() is not yet onl
On Sun, 7 Apr 2013, Borislav Petkov wrote:
> On Sun, Apr 07, 2013 at 11:20:10AM +0200, Thomas Gleixner wrote:
> > And it's even more bogus because the cpu to which we would bind in
> > kthread_create_on_cpu() is not yet online.
>
> In case you guys are wondering about reproducibility, I saw the s
On Sun, Apr 07, 2013 at 11:20:10AM +0200, Thomas Gleixner wrote:
> And it's even more bogus because the cpu to which we would bind in
> kthread_create_on_cpu() is not yet online.
In case you guys are wondering about reproducibility, I saw the same
BUG_ON yesterday on a 32-bit atom smp qemu guest t
On Sat, 6 Apr 2013, Thomas Gleixner wrote:
> This is Hillfs proposed patch:
>
> > --- a/kernel/kthread.c Sat Jan 19 13:03:52 2013
> > +++ b/kernel/kthread.c Sat Jan 19 13:17:54 2013
> > @@ -306,6 +306,7 @@ struct task_struct *kthread_create_on_cp
> > return p;
> > set_bit(KTH
On Sat, 6 Apr 2013, Srivatsa S. Bhat wrote:
> Hi Dave,
>
> On 04/06/2013 03:13 AM, Dave Hansen wrote:
> > Hey Thomas,
> >
> > I seem to be running in to smpboot_thread_fn()'s
> >
> > BUG_ON(td->cpu != smp_processor_id());
That should be WARN_ON of course. Stupid me.
> > pretty regularly,
Hi Dave,
On 04/06/2013 03:13 AM, Dave Hansen wrote:
> Hey Thomas,
>
> I seem to be running in to smpboot_thread_fn()'s
>
> BUG_ON(td->cpu != smp_processor_id());
>
> pretty regularly, both at boot and if I boot with maxcpus=x and then
> online the CPUs from sysfs after boot. It's a 160-l
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