On Thu, 14 Dec 2017, Thomas Gleixner wrote:
> Now, what's different vs. 4.14:
> The 4.14 code accidentaly had the irq descriptor for this vector still
> populated in the old CPU due to the convoluted way the vector allocation
> worked. I have still to investigate if one of those cases is actually
> leaking the descriptor, which would be a fatal bug.

It doesn't leak. It repopulates it at the same place out of sheer luck.



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