eixner; linux-arm-ker...@lists.infradead.org
> Subject: Re: [PATCH] hardlockup: detect hard lockups without NMIs using
> secondary cpus
>
> On Thu, Jan 10, 2013 at 9:57 PM, Liu, Chuansheng
> wrote:
> >
> >
> >> -Original Message-
> >> From: ccr...@google.com
kernel@vger.kernel.org; Andrew Morton; Don Zickus; Ingo Molnar;
>> Thomas Gleixner; linux-arm-ker...@lists.infradead.org
>> Subject: Re: [PATCH] hardlockup: detect hard lockups without NMIs using
>> secondary cpus
>>
>> On Thu, Jan 10, 2013 at 5:39 PM, Liu, Chuansheng
>&
eixner; linux-arm-ker...@lists.infradead.org
> Subject: Re: [PATCH] hardlockup: detect hard lockups without NMIs using
> secondary cpus
>
> On Thu, Jan 10, 2013 at 5:39 PM, Liu, Chuansheng
> wrote:
> >
> >
> >> -Original Message-
> >> From: Colin Cross [mailto
s; Ingo Molnar; Thomas Gleixner; Liu,
>> Chuansheng; linux-arm-ker...@lists.infradead.org; Colin Cross
>> Subject: [PATCH] hardlockup: detect hard lockups without NMIs using
>> secondary cpus
>>
>> Emulate NMIs on systems where they are not available by using timer
>
in Cross
> Subject: [PATCH] hardlockup: detect hard lockups without NMIs using
> secondary cpus
>
> Emulate NMIs on systems where they are not available by using timer
> interrupts on other cpus. Each cpu will use its softlockup hrtimer
> to check that the next cpu is processi
* Colin Cross [130110 14:37]:
> On Thu, Jan 10, 2013 at 12:38 PM, Tony Lindgren wrote:
> >
> > * Colin Cross [130109 18:05]:
> > > +static void watchdog_check_hardlockup_other_cpu(void)
> > > +{
> > > + int cpu;
> > > + cpumask_t cpus = watchdog_cpus;
> > > +
> > > + /*
> > > +
On Thu, Jan 10, 2013 at 12:38 PM, Tony Lindgren wrote:
>
> * Colin Cross [130109 18:05]:
> > +static void watchdog_check_hardlockup_other_cpu(void)
> > +{
> > + int cpu;
> > + cpumask_t cpus = watchdog_cpus;
> > +
> > + /*
> > + * Test for hardlockups every 3 samples. The
* Colin Cross [130109 18:05]:
> +static void watchdog_check_hardlockup_other_cpu(void)
> +{
> + int cpu;
> + cpumask_t cpus = watchdog_cpus;
> +
> + /*
> + * Test for hardlockups every 3 samples. The sample period is
> + * watchdog_thresh * 2 / 5, so 3 samples gets us back
On Thu, Jan 10, 2013 at 09:27:28AM -0800, Colin Cross wrote:
> On Thu, Jan 10, 2013 at 6:02 AM, Don Zickus wrote:
> > On Wed, Jan 09, 2013 at 05:57:39PM -0800, Colin Cross wrote:
> >> Emulate NMIs on systems where they are not available by using timer
> >> interrupts on other cpus. Each cpu will
On Thu, Jan 10, 2013 at 6:02 AM, Don Zickus wrote:
> On Wed, Jan 09, 2013 at 05:57:39PM -0800, Colin Cross wrote:
>> Emulate NMIs on systems where they are not available by using timer
>> interrupts on other cpus. Each cpu will use its softlockup hrtimer
>> to check that the next cpu is
On Thu, Jan 10, 2013 at 05:18:40PM +0100, Frederic Weisbecker wrote:
> 2013/1/10 Russell King - ARM Linux :
> > On Thu, Jan 10, 2013 at 09:02:15AM -0500, Don Zickus wrote:
> >> On Wed, Jan 09, 2013 at 05:57:39PM -0800, Colin Cross wrote:
> >> > Emulate NMIs on systems where they are not available
2013/1/10 Russell King - ARM Linux :
> On Thu, Jan 10, 2013 at 09:02:15AM -0500, Don Zickus wrote:
>> On Wed, Jan 09, 2013 at 05:57:39PM -0800, Colin Cross wrote:
>> > Emulate NMIs on systems where they are not available by using timer
>> > interrupts on other cpus. Each cpu will use its
On Thu, Jan 10, 2013 at 09:02:15AM -0500, Don Zickus wrote:
> On Wed, Jan 09, 2013 at 05:57:39PM -0800, Colin Cross wrote:
> > Emulate NMIs on systems where they are not available by using timer
> > interrupts on other cpus. Each cpu will use its softlockup hrtimer
> > to check that the next cpu
On Wed, Jan 09, 2013 at 05:57:39PM -0800, Colin Cross wrote:
> Emulate NMIs on systems where they are not available by using timer
> interrupts on other cpus. Each cpu will use its softlockup hrtimer
> to check that the next cpu is processing hrtimer interrupts by
> verifying that a counter is
2013/1/10 Russell King - ARM Linux li...@arm.linux.org.uk:
On Thu, Jan 10, 2013 at 09:02:15AM -0500, Don Zickus wrote:
On Wed, Jan 09, 2013 at 05:57:39PM -0800, Colin Cross wrote:
Emulate NMIs on systems where they are not available by using timer
interrupts on other cpus. Each cpu will use
On Thu, Jan 10, 2013 at 05:18:40PM +0100, Frederic Weisbecker wrote:
2013/1/10 Russell King - ARM Linux li...@arm.linux.org.uk:
On Thu, Jan 10, 2013 at 09:02:15AM -0500, Don Zickus wrote:
On Wed, Jan 09, 2013 at 05:57:39PM -0800, Colin Cross wrote:
Emulate NMIs on systems where they are
On Thu, Jan 10, 2013 at 6:02 AM, Don Zickus dzic...@redhat.com wrote:
On Wed, Jan 09, 2013 at 05:57:39PM -0800, Colin Cross wrote:
Emulate NMIs on systems where they are not available by using timer
interrupts on other cpus. Each cpu will use its softlockup hrtimer
to check that the next cpu
On Thu, Jan 10, 2013 at 09:27:28AM -0800, Colin Cross wrote:
On Thu, Jan 10, 2013 at 6:02 AM, Don Zickus dzic...@redhat.com wrote:
On Wed, Jan 09, 2013 at 05:57:39PM -0800, Colin Cross wrote:
Emulate NMIs on systems where they are not available by using timer
interrupts on other cpus. Each
* Colin Cross ccr...@android.com [130109 18:05]:
+static void watchdog_check_hardlockup_other_cpu(void)
+{
+ int cpu;
+ cpumask_t cpus = watchdog_cpus;
+
+ /*
+ * Test for hardlockups every 3 samples. The sample period is
+ * watchdog_thresh * 2 / 5, so 3 samples
On Thu, Jan 10, 2013 at 12:38 PM, Tony Lindgren t...@atomide.com wrote:
* Colin Cross ccr...@android.com [130109 18:05]:
+static void watchdog_check_hardlockup_other_cpu(void)
+{
+ int cpu;
+ cpumask_t cpus = watchdog_cpus;
+
+ /*
+ * Test for hardlockups every 3
* Colin Cross ccr...@android.com [130110 14:37]:
On Thu, Jan 10, 2013 at 12:38 PM, Tony Lindgren t...@atomide.com wrote:
* Colin Cross ccr...@android.com [130109 18:05]:
+static void watchdog_check_hardlockup_other_cpu(void)
+{
+ int cpu;
+ cpumask_t cpus = watchdog_cpus;
: [PATCH] hardlockup: detect hard lockups without NMIs using
secondary cpus
Emulate NMIs on systems where they are not available by using timer
interrupts on other cpus. Each cpu will use its softlockup hrtimer
to check that the next cpu is processing hrtimer interrupts by
verifying that a counter
; Liu,
Chuansheng; linux-arm-ker...@lists.infradead.org; Colin Cross
Subject: [PATCH] hardlockup: detect hard lockups without NMIs using
secondary cpus
Emulate NMIs on systems where they are not available by using timer
interrupts on other cpus. Each cpu will use its softlockup hrtimer
to check
Subject: Re: [PATCH] hardlockup: detect hard lockups without NMIs using
secondary cpus
On Thu, Jan 10, 2013 at 5:39 PM, Liu, Chuansheng
chuansheng@intel.com wrote:
-Original Message-
From: Colin Cross [mailto:ccr...@android.com]
Sent: Thursday, January 10, 2013 9:58 AM
; Don Zickus; Ingo Molnar;
Thomas Gleixner; linux-arm-ker...@lists.infradead.org
Subject: Re: [PATCH] hardlockup: detect hard lockups without NMIs using
secondary cpus
On Thu, Jan 10, 2013 at 5:39 PM, Liu, Chuansheng
chuansheng@intel.com wrote:
-Original Message-
From
Subject: Re: [PATCH] hardlockup: detect hard lockups without NMIs using
secondary cpus
On Thu, Jan 10, 2013 at 9:57 PM, Liu, Chuansheng
chuansheng@intel.com wrote:
-Original Message-
From: ccr...@google.com [mailto:ccr...@google.com] On Behalf Of Colin
Cross
Sent
On Wed, Jan 09, 2013 at 05:57:39PM -0800, Colin Cross wrote:
Emulate NMIs on systems where they are not available by using timer
interrupts on other cpus. Each cpu will use its softlockup hrtimer
to check that the next cpu is processing hrtimer interrupts by
verifying that a counter is
On Thu, Jan 10, 2013 at 09:02:15AM -0500, Don Zickus wrote:
On Wed, Jan 09, 2013 at 05:57:39PM -0800, Colin Cross wrote:
Emulate NMIs on systems where they are not available by using timer
interrupts on other cpus. Each cpu will use its softlockup hrtimer
to check that the next cpu is
Emulate NMIs on systems where they are not available by using timer
interrupts on other cpus. Each cpu will use its softlockup hrtimer
to check that the next cpu is processing hrtimer interrupts by
verifying that a counter is increasing.
This patch is useful on systems where the hardlockup
Emulate NMIs on systems where they are not available by using timer
interrupts on other cpus. Each cpu will use its softlockup hrtimer
to check that the next cpu is processing hrtimer interrupts by
verifying that a counter is increasing.
This patch is useful on systems where the hardlockup
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