On 08.03.2021 15:56:53, Marc Kleine-Budde wrote:
> > > meanwhile this patch hit v5.10.x stable and caused a performance
> > > degradation on our use case:
> > >
> > > It's an embedded ARM system, 4x Cortex A53, with an SPI attached CAN
> > > controller. CAN stands for Controller Area Network and
On 07.03.2021 10:02:32, Boqun Feng wrote:
> On Sat, Mar 06, 2021 at 09:39:54PM +0100, Marc Kleine-Budde wrote:
> > Hello *,
> >
> > On 02.11.2020 11:41:52, Andrea Righi wrote:
> > > We have the following potential deadlock condition:
> > >
> > >
Hi,
On 3/7/21 5:13 PM, Pavel Machek wrote:
> Hi!
>
>>> --- a/drivers/leds/led-triggers.c
>>> +++ b/drivers/leds/led-triggers.c
>>> @@ -378,14 +378,15 @@ void led_trigger_event(struct led_trigger *trig,
>>> enum led_brightness brightness)
>>> {
>>> struct led_classdev
Hi!
> > ---
> > drivers/leds/led-triggers.c | 5 +++--
> > 1 file changed, 3 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/leds/led-triggers.c b/drivers/leds/led-triggers.c
> > index 91da90cfb11d..16d1a93a10a8 100644
> > --- a/drivers/leds/led-triggers.c
> > +++
Hi!
> > --- a/drivers/leds/led-triggers.c
> > +++ b/drivers/leds/led-triggers.c
> > @@ -378,14 +378,15 @@ void led_trigger_event(struct led_trigger *trig,
> > enum led_brightness brightness)
> > {
> > struct led_classdev *led_cdev;
> > + unsigned long flags;
> >
> >
On Sun, Mar 07, 2021 at 10:02:32AM +0800, Boqun Feng wrote:
> On Sat, Mar 06, 2021 at 09:39:54PM +0100, Marc Kleine-Budde wrote:
> > Hello *,
> >
> > On 02.11.2020 11:41:52, Andrea Righi wrote:
> > > We have the following potential deadlock condition:
> > >
> > >
On Sat, Mar 06, 2021 at 09:39:54PM +0100, Marc Kleine-Budde wrote:
> Hello *,
>
> On 02.11.2020 11:41:52, Andrea Righi wrote:
> > We have the following potential deadlock condition:
> >
> >
> > WARNING: possible irq lock inversion
Hello *,
On 02.11.2020 11:41:52, Andrea Righi wrote:
> We have the following potential deadlock condition:
>
>
> WARNING: possible irq lock inversion dependency detected
> 5.10.0-rc2+ #25 Not tainted
>
On Wed, Nov 25, 2020 at 03:15:18PM +0100, Andrea Righi wrote:
...
> > I'd hate to see this in stable 3 days after Linus merges it...
> >
> > Do these need _irqsave, too?
> >
> > drivers/leds/led-triggers.c: read_lock(>leddev_list_lock);
> > drivers/leds/led-triggers.c:
Hi Pavel,
On Wed, Nov 25, 2020 at 01:46:48PM +0100, Pavel Machek wrote:
> Hi!
>
> > We have the following potential deadlock condition:
> >
> >
> > WARNING: possible irq lock inversion dependency detected
> > 5.10.0-rc2+ #25 Not
On Wed, Nov 25, 2020 at 01:46:48PM +0100, Pavel Machek wrote:
> Hi!
>
> > We have the following potential deadlock condition:
> >
> >
> > WARNING: possible irq lock inversion dependency detected
> > 5.10.0-rc2+ #25 Not tainted
> >
Hi!
> We have the following potential deadlock condition:
>
>
> WARNING: possible irq lock inversion dependency detected
> 5.10.0-rc2+ #25 Not tainted
>
> swapper/3/0 just
We have the following potential deadlock condition:
WARNING: possible irq lock inversion dependency detected
5.10.0-rc2+ #25 Not tainted
swapper/3/0 just changed the state of
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