On Wed, May 06, 2020 at 08:37:03PM +0200, Peter Zijlstra wrote:
> On Wed, May 06, 2020 at 11:28:56AM -0700, Paul E. McKenney wrote:
> > I still see warnings of the form "leave instruction with modified stack
> > frame" from older complilers and of the form "undefined stack state"
> > from newer
On Wed, May 06, 2020 at 11:28:56AM -0700, Paul E. McKenney wrote:
> I still see warnings of the form "leave instruction with modified stack
> frame" from older complilers and of the form "undefined stack state"
> from newer compilers. I am running stock objtool versions, so I am
> guessing that
On Wed, May 06, 2020 at 05:33:00PM +0200, Peter Zijlstra wrote:
> On Wed, May 06, 2020 at 02:37:19PM +0200, Alexandre Chartre wrote:
> > On 5/5/20 3:16 PM, Thomas Gleixner wrote:
> > > @@ -650,6 +655,16 @@ static inline bool got_nohz_idle_kick(vo
> > > return false;
> > > }
> > >
On Wed, May 06, 2020 at 02:37:19PM +0200, Alexandre Chartre wrote:
> On 5/5/20 3:16 PM, Thomas Gleixner wrote:
> > @@ -650,6 +655,16 @@ static inline bool got_nohz_idle_kick(vo
> > return false;
> > }
> > +static void nohz_csd_func(void *info)
> > +{
> > + struct rq *rq = info;
> > +
> > +
Alexandre Chartre writes:
> On 5/5/20 3:16 PM, Thomas Gleixner wrote:
>> @@ -10009,12 +10009,11 @@ static void kick_ilb(unsigned int flags)
>> return;
>>
>> /*
>> - * Use smp_send_reschedule() instead of resched_cpu().
>> - * This way we generate a sched IPI on the
On 5/5/20 3:16 PM, Thomas Gleixner wrote:
The scheduler IPI has grown weird and wonderful over the years, time
for spring cleaning.
Move all the non-trivial stuff out of it and into a regular smp function
call IPI. This then reduces the schedule_ipi() to most of it's former MOP
glory and
On Wed, May 06, 2020 at 11:12:35AM +0200, Thomas Gleixner wrote:
> It was NOP long ago. Now it's Minimal OPeration :)
LOL, a new instruction: MOP. I can think of a couple of x86 instructions
which can be MOPs.
:-P
--
Regards/Gruss,
Boris.
Borislav Petkov writes:
> On Tue, May 05, 2020 at 03:16:05PM +0200, Thomas Gleixner wrote:
>> The scheduler IPI has grown weird and wonderful over the years, time
>> for spring cleaning.
>>
>> Move all the non-trivial stuff out of it and into a regular smp function
>> call IPI. This then
On Tue, May 05, 2020 at 03:16:05PM +0200, Thomas Gleixner wrote:
> The scheduler IPI has grown weird and wonderful over the years, time
> for spring cleaning.
>
> Move all the non-trivial stuff out of it and into a regular smp function
> call IPI. This then reduces the schedule_ipi() to most of
Thomas Gleixner writes:
Bah. I managed to lose the
From: Peterz
line somehow.
The scheduler IPI has grown weird and wonderful over the years, time
for spring cleaning.
Move all the non-trivial stuff out of it and into a regular smp function
call IPI. This then reduces the schedule_ipi() to most of it's former MOP
glory and ensures to keep the interrupt vector lean and
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