(In reply to Richard Palethorpe from comment #0) > Jun 20 08:54:42 linux-v3j5 kernel: UBSAN: Undefined behaviour in > ../drivers/gpu/drm/nouveau/nvkm/subdev/gpio/base.c:167:16 > Jun 20 08:54:42 linux-v3j5 kernel: shift exponent 32 is too large for 32-bit > type 'int' This is a bug fixed by: commit 99a97a8ba9881fc47901ff36b057e5cd0bf06af0 Author: Adam Borowski <kilobyte@angband.pl> Date: Sun Apr 2 07:03:28 2017 +0200 drm/nouveau/gpio: enable interrupts on cards with 32 gpio lines Pushed.