At 2019-07-18 16:07:58, "Thomas Gleixner" <t...@linutronix.de> wrote:
>On Thu, 18 Jul 2019, lufe...@163.com wrote:
>
>> From: luferry <lufe...@163.com>
>>
>> The race can reproduced by sending wait enabled IPI in softirq/irq env
>
>Which code path is doing that?
>
>Thanks,
>
> tglx
Thanks for your kindly reply.
I checked kernel and found no code path can run into this.
Actually , i encounter with this problem by my own code.
I need to do some specific urgent work periodicity and these
work may run for quite a while. So i can't disable irq during these work
which stops me from using hrtimer to do this. So i did add an extra
sofitrq action which may invoke smp_call.
