On 2021-01-29 18:04:14 (+0100), Sebastian Andrzej Siewior wrote:
> I don't see anything wrong. There is small difference in timing and
> then the RT version does not do a thing while !RT keeps reseting…
> Could you try non-RT with the
> 	threadirqs
> 
> option?

Yes, (sorry for not including that earlier D:) that fails the same way
as the realtime kernel:
https://pkgbuild.com/~dvzrv/bugs/2021/01/linux-5.4.91-kernel_threadirqs.log

Best,

David

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