Messages in this thread | | | Date | Thu, 23 Apr 2020 20:47:17 +0200 | From | Sebastian Andrzej Siewior <> | Subject | Re: [PREEMPT_RT] 8250 IRQ lockup when flooding serial console (was Re: [ANNOUNCE] v5.4.28-rt19) |
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On 2020-04-23 14:34:37 [-0400], Steven Rostedt wrote: > On Thu, 23 Apr 2020 09:06:01 -0400 > Steven Rostedt <rostedt@goodmis.org> wrote: > > > 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. > > Figured it out. Seems that starting with 5.4-rt, PREEMPT_RT now depends on > CONFIG_EXPERT, which I didn't have set, and PREEMPT_RT was disabled when > using my default config. > > Had to add CONFIG_EXPERT to my default config to make it work again.
Yes, this changed upstream.
> Starting the tests over.... > > -- Steve
Sebastian
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