Sorry for the edit cascade. I just figured that if I mount /dev with tmpfs that the underlying /dev/shm is not available anymore and thus causes chromium browser to crash. So that is not a direct issue of this problem, just a victim when I tried to fix it myself.
* Need more coffee *
__ So, the problem, is that an udev tmpfs on /dev is not mounted and populated despite the fact that udevd is running. __
Sorry for the edit cascade. I just figured that if I mount /dev with tmpfs that the underlying /dev/shm is not available anymore and thus causes chromium browser to crash. So that is not a direct issue of this problem, just a victim when I tried to fix it myself.
* Need more coffee *
__ So, the problem, is that an udev tmpfs on /dev is not mounted and populated despite the fact that udevd is running. __