On 06/13/2018 05:58 PM, Ricardo Neri wrote:
> On Tue, Jun 12, 2018 at 10:26:57PM -0700, Randy Dunlap wrote:
>> On 06/12/2018 05:57 PM, Ricardo Neri wrote:
>>> diff --git a/Documentation/admin-guide/kernel-parameters.txt
>>> b/Documentation/admin-guide/kernel-parameters.txt
>>> index
On Wed, 13 Jun 2018 18:31:17 -0700
Ricardo Neri wrote:
> On Wed, Jun 13, 2018 at 09:52:25PM +1000, Nicholas Piggin wrote:
> > On Wed, 13 Jun 2018 11:26:49 +0200 (CEST)
> > Thomas Gleixner wrote:
> >
> > > On Wed, 13 Jun 2018, Peter Zijlstra wrote:
> > > > On Wed, Jun 13, 2018 at 05:41:41PM
On Wed, 13 Jun 2018 18:19:01 -0700
Ricardo Neri wrote:
> On Wed, Jun 13, 2018 at 10:43:24AM +0200, Peter Zijlstra wrote:
> > On Tue, Jun 12, 2018 at 05:57:34PM -0700, Ricardo Neri wrote:
> > > The current default implementation of the hardlockup detector assumes that
> > > it is implemented
On Wed, Jun 13, 2018 at 09:52:25PM +1000, Nicholas Piggin wrote:
> On Wed, 13 Jun 2018 11:26:49 +0200 (CEST)
> Thomas Gleixner wrote:
>
> > On Wed, 13 Jun 2018, Peter Zijlstra wrote:
> > > On Wed, Jun 13, 2018 at 05:41:41PM +1000, Nicholas Piggin wrote:
> > > > On Tue, 12 Jun 2018 17:57:32
On Wed, Jun 13, 2018 at 10:42:19AM +0200, Peter Zijlstra wrote:
> On Wed, Jun 13, 2018 at 05:41:41PM +1000, Nicholas Piggin wrote:
> > On Tue, 12 Jun 2018 17:57:32 -0700
> > Ricardo Neri wrote:
> >
> > > Instead of exposing individual functions for the operations of the NMI
> > > watchdog,
On Wed, Jun 13, 2018 at 10:43:24AM +0200, Peter Zijlstra wrote:
> On Tue, Jun 12, 2018 at 05:57:34PM -0700, Ricardo Neri wrote:
> > The current default implementation of the hardlockup detector assumes that
> > it is implemented using perf events.
>
> The sparc and powerpc things are very much
On Tue, Jun 12, 2018 at 10:23:47PM -0700, Randy Dunlap wrote:
> Hi,
Hi Randy,
>
> On 06/12/2018 05:57 PM, Ricardo Neri wrote:
> > diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
> > index c40c7b7..6e79833 100644
> > --- a/lib/Kconfig.debug
> > +++ b/lib/Kconfig.debug
> > @@ -828,6 +828,16 @@
On Tue, Jun 12, 2018 at 10:26:57PM -0700, Randy Dunlap wrote:
> On 06/12/2018 05:57 PM, Ricardo Neri wrote:
> > diff --git a/Documentation/admin-guide/kernel-parameters.txt
> > b/Documentation/admin-guide/kernel-parameters.txt
> > index f2040d4..a8833c7 100644
> > ---
On Wed, 13 Jun 2018 11:26:49 +0200 (CEST)
Thomas Gleixner wrote:
> On Wed, 13 Jun 2018, Peter Zijlstra wrote:
> > On Wed, Jun 13, 2018 at 05:41:41PM +1000, Nicholas Piggin wrote:
> > > On Tue, 12 Jun 2018 17:57:32 -0700
> > > Ricardo Neri wrote:
> > >
> > > > Instead of exposing individual
On 13/06/18 10:57, Thomas Gleixner wrote:
On Wed, 13 Jun 2018, Julien Thierry wrote:
On 13/06/18 10:20, Thomas Gleixner wrote:
Adding NMI delivery support at low level architecture irq chip level is
perfectly fine, but the exposure of that needs to be restricted very
much. Adding it to the
On 13/06/18 10:20, Thomas Gleixner wrote:
> On Wed, 13 Jun 2018, Julien Thierry wrote:
>> On 13/06/18 09:34, Peter Zijlstra wrote:
>>> On Tue, Jun 12, 2018 at 05:57:23PM -0700, Ricardo Neri wrote:
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 5426627..dbc5e02
On Wed, 13 Jun 2018, Julien Thierry wrote:
> On 13/06/18 10:20, Thomas Gleixner wrote:
> > Adding NMI delivery support at low level architecture irq chip level is
> > perfectly fine, but the exposure of that needs to be restricted very
> > much. Adding it to the generic interrupt control
On Tue, 12 Jun 2018, Ricardo Neri wrote:
> + /* There are no CPUs to monitor. */
> + if (!cpumask_weight(>monitored_mask))
> + return NMI_HANDLED;
> +
> inspect_for_hardlockups(regs);
>
> + /*
> + * Target a new CPU. Keep trying until we find a monitored CPU.
On 13/06/18 10:36, Julien Thierry wrote:
On 13/06/18 10:20, Thomas Gleixner wrote:
On Wed, 13 Jun 2018, Julien Thierry wrote:
On 13/06/18 09:34, Peter Zijlstra wrote:
On Tue, Jun 12, 2018 at 05:57:23PM -0700, Ricardo Neri wrote:
diff --git a/include/linux/interrupt.h
On Tue, 12 Jun 2018, Ricardo Neri wrote:
> @@ -183,6 +184,8 @@ static irqreturn_t hardlockup_detector_irq_handler(int
> irq, void *data)
> if (!(hdata->flags & HPET_DEV_PERI_CAP))
> kick_timer(hdata);
>
> + pr_err("This interrupt should not have happened. Ensure delivery
On 13/06/18 10:20, Thomas Gleixner wrote:
On Wed, 13 Jun 2018, Julien Thierry wrote:
On 13/06/18 09:34, Peter Zijlstra wrote:
On Tue, Jun 12, 2018 at 05:57:23PM -0700, Ricardo Neri wrote:
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 5426627..dbc5e02 100644
---
On Wed, 13 Jun 2018, Peter Zijlstra wrote:
> On Wed, Jun 13, 2018 at 05:41:41PM +1000, Nicholas Piggin wrote:
> > On Tue, 12 Jun 2018 17:57:32 -0700
> > Ricardo Neri wrote:
> >
> > > Instead of exposing individual functions for the operations of the NMI
> > > watchdog, define a common interface
On Wed, 13 Jun 2018, Julien Thierry wrote:
> On 13/06/18 09:34, Peter Zijlstra wrote:
> > On Tue, Jun 12, 2018 at 05:57:23PM -0700, Ricardo Neri wrote:
> > > diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
> > > index 5426627..dbc5e02 100644
> > > --- a/include/linux/interrupt.h
Hi Peter, Ricardo,
On 13/06/18 09:34, Peter Zijlstra wrote:
On Tue, Jun 12, 2018 at 05:57:23PM -0700, Ricardo Neri wrote:
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 5426627..dbc5e02 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -61,6
On Tue, Jun 12, 2018 at 05:57:37PM -0700, Ricardo Neri wrote:
+static bool is_hpet_wdt_interrupt(struct hpet_hld_data *hdata)
+{
+ unsigned long this_isr;
+ unsigned int lvl_trig;
+
+ this_isr = hpet_readl(HPET_STATUS) & BIT(hdata->num);
+
+ lvl_trig =
On Tue, Jun 12, 2018 at 05:57:34PM -0700, Ricardo Neri wrote:
> The current default implementation of the hardlockup detector assumes that
> it is implemented using perf events.
The sparc and powerpc things are very much not using perf.
___
iommu
On Wed, Jun 13, 2018 at 05:41:41PM +1000, Nicholas Piggin wrote:
> On Tue, 12 Jun 2018 17:57:32 -0700
> Ricardo Neri wrote:
>
> > Instead of exposing individual functions for the operations of the NMI
> > watchdog, define a common interface that can be used across multiple
> > implementations.
>
On Tue, Jun 12, 2018 at 05:57:23PM -0700, Ricardo Neri wrote:
> diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
> index 5426627..dbc5e02 100644
> --- a/include/linux/interrupt.h
> +++ b/include/linux/interrupt.h
> @@ -61,6 +61,8 @@
> *interrupt handler after
On Tue, 12 Jun 2018 17:57:32 -0700
Ricardo Neri wrote:
> Instead of exposing individual functions for the operations of the NMI
> watchdog, define a common interface that can be used across multiple
> implementations.
>
> The struct nmi_watchdog_ops is defined for such operations. These initial
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