Re: [PREEMPT_RT] 8250 IRQ lockup when flooding serial console (was Re: [ANNOUNCE] v5.4.28-rt19)

[Sebastian Andrzej Siewior]

On 2020-04-23 11:12:59 [+0200], Jiri Kosina wrote:
> On Thu, 23 Apr 2020, Jiri Kosina wrote:
> 
> > > I'm pleased to announce the v5.4.28-rt19 patch set. 
> > 
> > First, I don't believe this is necessarily a regression coming with this 
> > particular version, but this is the first kernel where I tried this and it 
> > crashed.
> 
> I just tried with 5.6.4-rt3, and I can make it explode exactly the same 
> way:

I though I dealt with it. In the past it triggered also with threadirqs
on !RT but this isn't the case anymore. It still explodes on RT. Let me
lookâ

Sebastian