Several "whoohoo!" moments in dealing with this, and I think my
gdb knowledge has improved tenfold. Happy developer here, sitting atop a pile of defeated hardware
In case the plugin didn't pick it up, these are upstream bugs 774265, 774379, and 774699.
I hope these last, unlike the last fix for Wintab startup crashers. I'm doing what I can to make sure that no more regressions appear in future: @maxy-senpai speaks the truth when he recommends leaving assertions everywhere