On Wed, 2020-12-02 at 12:29 +0100, Johannes Berg wrote: > > I'm still digging and trying to build a test case, but if you have a > test case at hand .. I wonder if IRQ aliasing happened - if you remove > the "goto out;" in free_irq_by_irq_and_dev(), does that help? That wasn't it, but I can reproduce now. johannes