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
On Thu, Jan 10, 2013 at 5:39 PM, Liu, Chuansheng
wrote:
>
>
>> -Original Message-
>> From: Colin Cross [mailto:ccr...@android.com]
>> Sent: Thursday, January 10, 2013 9:58 AM
>> To: linux-kernel@vger.kernel.org
>> Cc: Andrew Morton; Don Zickus; Ingo Molnar; Thomas Gleixner; Liu,
>> Chuansh
> -Original Message-
> From: Colin Cross [mailto:ccr...@android.com]
> Sent: Thursday, January 10, 2013 9:58 AM
> To: linux-kernel@vger.kernel.org
> Cc: Andrew Morton; Don Zickus; Ingo Molnar; Thomas Gleixner; Liu,
> Chuansheng; linux-arm-ker...@lists.infradead.org; Colin Cross
> Subject:
* 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 sample
* 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 processin
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 b
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 softlocku
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 i
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 inc
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