On Thu, 2017-11-16 at 16:00:50 UTC, Nicholas Piggin wrote:
> When an interrupt is returning to a soft-disabled context (which can
> happen for non-maskable interrupts or synchronous interrupts), it goes
> through the motions of soft-disabling again, including calling
> TRACE_DISABLE_INTS (i.e., tra
Benjamin Herrenschmidt writes:
> On Mon, 2017-12-04 at 16:09 +1100, Michael Ellerman wrote:
>> Nicholas Piggin writes:
>>
>> > When an interrupt is returning to a soft-disabled context (which can
>> > happen for non-maskable interrupts or synchronous interrupts), it goes
>> > through the motion
On Mon, 2017-12-04 at 16:09 +1100, Michael Ellerman wrote:
> Nicholas Piggin writes:
>
> > When an interrupt is returning to a soft-disabled context (which can
> > happen for non-maskable interrupts or synchronous interrupts), it goes
> > through the motions of soft-disabling again, including cal
Nicholas Piggin writes:
> On Mon, 04 Dec 2017 16:09:57 +1100
> Michael Ellerman wrote:
>
>> Nicholas Piggin writes:
>>
>> > When an interrupt is returning to a soft-disabled context (which can
>> > happen for non-maskable interrupts or synchronous interrupts), it goes
>> > through the motions
On Mon, 04 Dec 2017 16:09:57 +1100
Michael Ellerman wrote:
> Nicholas Piggin writes:
>
> > When an interrupt is returning to a soft-disabled context (which can
> > happen for non-maskable interrupts or synchronous interrupts), it goes
> > through the motions of soft-disabling again, including c
Nicholas Piggin writes:
> When an interrupt is returning to a soft-disabled context (which can
> happen for non-maskable interrupts or synchronous interrupts), it goes
> through the motions of soft-disabling again, including calling
> TRACE_DISABLE_INTS (i.e., trace_hardirqs_off()).
>
> This is n
When an interrupt is returning to a soft-disabled context (which can
happen for non-maskable interrupts or synchronous interrupts), it goes
through the motions of soft-disabling again, including calling
TRACE_DISABLE_INTS (i.e., trace_hardirqs_off()).
This is not necessary, because we must already