In commit bc09c21 "Fix finding overflowed PMC in interrupt" we added
a printk() to the PMU exception handler. Unfortunately that is not safe.
The problem is that the PMU exception may run even when interrupts are
soft disabled, aka NMI context. We do this so that we can profile parts
of the kernel
On Tue, 2013-06-04 at 14:35 +0530, Anshuman Khandual wrote:
> > + seq_printf(p, "%*s: ", prec, "PMS");
>
> Lets make this PMIS or PMI_S instead of PMS.
Everything else is aligned using a three character prefix, so that would
stuff the alignment up.
>
> > + for_each_online_cpu(j)
> > +
> + seq_printf(p, "%*s: ", prec, "PMS");
Lets make this PMIS or PMI_S instead of PMS.
> + for_each_online_cpu(j)
> + seq_printf(p, "%10u ", per_cpu(irq_stat, j).pmu_irqs);
This would be pmu_spurious_irqs instead of pmu_irqs.
___
L
In commit bc09c21 "Fix finding overflowed PMC in interrupt" we added
a printk() to the PMU exception handler. Unfortunately that is not safe.
The problem is that the PMU exception runs even when interrupts are soft
disabled. We do this so that we can profile parts of the kernel that
have interrupt
