Re: [PATCH] perf/core: fix a possible deadlock scenario

[Jiri Olsa]

On Wed, Jul 18, 2018 at 01:21:11PM -0700, Cong Wang wrote:

SNIP

> > hum, the swevent pmu does not triger NMI, so that timer
> > will never be touched in NMI context
> 
> Good to know! So I worry too much here.
> 
> But still, given hrtimer interrupt is called with IRQ disabled, getting
> stuck in a hrtimer callback could also block IPI handler, therefore
> causing soft lockups.
> 
> Let me know if you want me to adjust the changelog for this.

yep, it's confusing, I think it should be removed from changelog

jirka