Re: Regression with suspicious RCU usage splats with cpu_pm change

On Thursday, July 27, 2017 05:55:19 PM Alex Shi wrote: > Hi Rafael, > > Guess you overlook my new patch in this thread. :) > Do I need to recent this patch as new? or you could pick it up here? Please resend it, add all of the applicable tags etc. Thanks, Rafael

Re: Regression with suspicious RCU usage splats with cpu_pm change

On Thursday, July 27, 2017 05:55:19 PM Alex Shi wrote: > Hi Rafael, > > Guess you overlook my new patch in this thread. :) > Do I need to recent this patch as new? or you could pick it up here? Please resend it, add all of the applicable tags etc. Thanks, Rafael

Re: Regression with suspicious RCU usage splats with cpu_pm change

Hi Rafael, Guess you overlook my new patch in this thread. :) Do I need to recent this patch as new? or you could pick it up here? BTW, it's Tested-by: Tony Lindgren Thanks! Alex On 07/17/2017 07:24 AM, Alex Shi wrote: > > > On 07/13/2017 08:43 PM, Paul E. McKenney wrote:

Re: Regression with suspicious RCU usage splats with cpu_pm change

Hi Rafael, Guess you overlook my new patch in this thread. :) Do I need to recent this patch as new? or you could pick it up here? BTW, it's Tested-by: Tony Lindgren Thanks! Alex On 07/17/2017 07:24 AM, Alex Shi wrote: > > > On 07/13/2017 08:43 PM, Paul E. McKenney wrote: >> On Thu, Jul 13,

Re: Regression with suspicious RCU usage splats with cpu_pm change

* Paul E. McKenney [170718 10:00]: > On Mon, Jul 17, 2017 at 10:41:38PM -0700, Tony Lindgren wrote: > > * Paul E. McKenney [170717 05:40]: > > > On Sun, Jul 16, 2017 at 11:08:07PM -0700, Tony Lindgren wrote: > > > > * Alex Shi

Re: Regression with suspicious RCU usage splats with cpu_pm change

* Paul E. McKenney [170718 10:00]: > On Mon, Jul 17, 2017 at 10:41:38PM -0700, Tony Lindgren wrote: > > * Paul E. McKenney [170717 05:40]: > > > On Sun, Jul 16, 2017 at 11:08:07PM -0700, Tony Lindgren wrote: > > > > * Alex Shi [170716 16:25]: > > > > > I reused the rcu_irq_enter_irqson() from

Re: Regression with suspicious RCU usage splats with cpu_pm change

On Mon, Jul 17, 2017 at 10:41:38PM -0700, Tony Lindgren wrote: > * Paul E. McKenney [170717 05:40]: > > On Sun, Jul 16, 2017 at 11:08:07PM -0700, Tony Lindgren wrote: > > > * Alex Shi [170716 16:25]: > > > > I reused the rcu_irq_enter_irqson()

Re: Regression with suspicious RCU usage splats with cpu_pm change

On Mon, Jul 17, 2017 at 10:41:38PM -0700, Tony Lindgren wrote: > * Paul E. McKenney [170717 05:40]: > > On Sun, Jul 16, 2017 at 11:08:07PM -0700, Tony Lindgren wrote: > > > * Alex Shi [170716 16:25]: > > > > I reused the rcu_irq_enter_irqson() from RCU_NONIDLE to avoid this > > > > issue. > >

Re: Regression with suspicious RCU usage splats with cpu_pm change

* Paul E. McKenney [170717 05:40]: > On Sun, Jul 16, 2017 at 11:08:07PM -0700, Tony Lindgren wrote: > > * Alex Shi [170716 16:25]: > > > I reused the rcu_irq_enter_irqson() from RCU_NONIDLE to avoid this issue. > > > It works fine. > > > > > >

Re: Regression with suspicious RCU usage splats with cpu_pm change

* Paul E. McKenney [170717 05:40]: > On Sun, Jul 16, 2017 at 11:08:07PM -0700, Tony Lindgren wrote: > > * Alex Shi [170716 16:25]: > > > I reused the rcu_irq_enter_irqson() from RCU_NONIDLE to avoid this issue. > > > It works fine. > > > > > > Tony, Could you like to give a tested-by if this

Re: Regression with suspicious RCU usage splats with cpu_pm change

On Sun, Jul 16, 2017 at 11:08:07PM -0700, Tony Lindgren wrote: > * Alex Shi [170716 16:25]: > > I reused the rcu_irq_enter_irqson() from RCU_NONIDLE to avoid this issue. > > It works fine. > > > > Tony, Could you like to give a tested-by if this patch works for you. > >

Re: Regression with suspicious RCU usage splats with cpu_pm change

On Sun, Jul 16, 2017 at 11:08:07PM -0700, Tony Lindgren wrote: > * Alex Shi [170716 16:25]: > > I reused the rcu_irq_enter_irqson() from RCU_NONIDLE to avoid this issue. > > It works fine. > > > > Tony, Could you like to give a tested-by if this patch works for you. > > Yeah that keeps things

Re: Regression with suspicious RCU usage splats with cpu_pm change

* Alex Shi [170716 16:25]: > I reused the rcu_irq_enter_irqson() from RCU_NONIDLE to avoid this issue. > It works fine. > > Tony, Could you like to give a tested-by if this patch works for you. Yeah that keeps things booting for me with no splats so: Tested-by: Tony

Re: Regression with suspicious RCU usage splats with cpu_pm change

* Alex Shi [170716 16:25]: > I reused the rcu_irq_enter_irqson() from RCU_NONIDLE to avoid this issue. > It works fine. > > Tony, Could you like to give a tested-by if this patch works for you. Yeah that keeps things booting for me with no splats so: Tested-by: Tony Lindgren In general, it

Re: Regression with suspicious RCU usage splats with cpu_pm change

On 07/13/2017 08:43 PM, Paul E. McKenney wrote: > On Thu, Jul 13, 2017 at 01:50:26PM +0200, Rafael J. Wysocki wrote: >> On Thu, Jul 13, 2017 at 11:43 AM, Alex Shi wrote: >>> >>> On 07/13/2017 03:07 PM, Tony Lindgren wrote: Hi, Looks like next-20170713 gives

Re: Regression with suspicious RCU usage splats with cpu_pm change

On 07/13/2017 08:43 PM, Paul E. McKenney wrote: > On Thu, Jul 13, 2017 at 01:50:26PM +0200, Rafael J. Wysocki wrote: >> On Thu, Jul 13, 2017 at 11:43 AM, Alex Shi wrote: >>> >>> On 07/13/2017 03:07 PM, Tony Lindgren wrote: Hi, Looks like next-20170713 gives me a bunch of

Re: Regression with suspicious RCU usage splats with cpu_pm change

On Thu, Jul 13, 2017 at 01:50:26PM +0200, Rafael J. Wysocki wrote: > On Thu, Jul 13, 2017 at 11:43 AM, Alex Shi wrote: > > > > On 07/13/2017 03:07 PM, Tony Lindgren wrote: > >> Hi, > >> > >> Looks like next-20170713 gives me a bunch of "suspicious RCU usage" > >> splats with

Re: Regression with suspicious RCU usage splats with cpu_pm change

On Thu, Jul 13, 2017 at 01:50:26PM +0200, Rafael J. Wysocki wrote: > On Thu, Jul 13, 2017 at 11:43 AM, Alex Shi wrote: > > > > On 07/13/2017 03:07 PM, Tony Lindgren wrote: > >> Hi, > >> > >> Looks like next-20170713 gives me a bunch of "suspicious RCU usage" > >> splats with cpuidle_coupled on

Re: Regression with suspicious RCU usage splats with cpu_pm change

On Thu, Jul 13, 2017 at 11:43 AM, Alex Shi wrote: > > On 07/13/2017 03:07 PM, Tony Lindgren wrote: >> Hi, >> >> Looks like next-20170713 gives me a bunch of "suspicious RCU usage" >> splats with cpuidle_coupled on duovero, see below. I bisected it down >> to commit

Re: Regression with suspicious RCU usage splats with cpu_pm change

On Thu, Jul 13, 2017 at 11:43 AM, Alex Shi wrote: > > On 07/13/2017 03:07 PM, Tony Lindgren wrote: >> Hi, >> >> Looks like next-20170713 gives me a bunch of "suspicious RCU usage" >> splats with cpuidle_coupled on duovero, see below. I bisected it down >> to commit 2f027e003d05 ("cpu_pm: replace

Re: Regression with suspicious RCU usage splats with cpu_pm change

On 07/13/2017 03:07 PM, Tony Lindgren wrote: > Hi, > > Looks like next-20170713 gives me a bunch of "suspicious RCU usage" > splats with cpuidle_coupled on duovero, see below. I bisected it down > to commit 2f027e003d05 ("cpu_pm: replace raw_notifier with > atomic_notifier"). > > Regards, > >

Re: Regression with suspicious RCU usage splats with cpu_pm change

On 07/13/2017 03:07 PM, Tony Lindgren wrote: > Hi, > > Looks like next-20170713 gives me a bunch of "suspicious RCU usage" > splats with cpuidle_coupled on duovero, see below. I bisected it down > to commit 2f027e003d05 ("cpu_pm: replace raw_notifier with > atomic_notifier"). > > Regards, > >

Regression with suspicious RCU usage splats with cpu_pm change

Hi, Looks like next-20170713 gives me a bunch of "suspicious RCU usage" splats with cpuidle_coupled on duovero, see below. I bisected it down to commit 2f027e003d05 ("cpu_pm: replace raw_notifier with atomic_notifier"). Regards, Tony 8< --- =

Regression with suspicious RCU usage splats with cpu_pm change

Hi, Looks like next-20170713 gives me a bunch of "suspicious RCU usage" splats with cpuidle_coupled on duovero, see below. I bisected it down to commit 2f027e003d05 ("cpu_pm: replace raw_notifier with atomic_notifier"). Regards, Tony 8< --- =