https://bugzilla.kernel.org/show_bug.cgi?id=90741
--- Comment #24 from Jon Arne Jørgensen jonjon.arnearne@gmail.com --- I just commented out the trace_fence_enable_signal call to get it to compile. Figured I don't need the tracepoint debug to test the patch.
I also uncommented the sw_irq_get and sw_irq_put calls, and can report that the patch seems to fix bug 90861.
I guess this is proof that the bug is related.
I didn't try the patch with sw_irq_get/set disabled. Just ask, and I will give it a try.