Messages in this thread |  | | Date | Thu, 23 Apr 2020 09:06:01 -0400 | From | Steven Rostedt <> | Subject | Re: [PREEMPT_RT] 8250 IRQ lockup when flooding serial console (was Re: [ANNOUNCE] v5.4.28-rt19) |
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On Thu, 23 Apr 2020 12:45:59 +0200 Sebastian Andrzej Siewior <bigeasy@linutronix.de> wrote:
> 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 > look…
Good, something to look for as a backport ;-)
BTW, I haven't released a new 5.4-rt because the default one is triggering a large latency somewhere, and makes my tests fail. I'm trying to dig into the cause when I get time.
-- Steve
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