Yes, it was fixed in 5.5. There's a few corners of the internet explaining the issue...this one is good enough https://bbs.archlinux.org/viewtopic.php?id=250765 .

I have a newish all intel setup, and 5.4 crashes to the point of insanity. I gave up and installed 5.5 and it went away. It's a serious issue for an LTS release.