https://bugs.freedesktop.org/show_bug.cgi?id=82050
--- Comment #30 from Mathieu Belanger b747xx@gmail.com --- Yes.
Minecraft is unplayable with latest Kernel+latest Mesa.
In the beginning, it's smooth.. after 30 sec or so it start to stuter a little... By the five minutes mark. if you move in the game, it pause for like 5 to 7 seconde, move for 2 secondes, pause for 5 secondes...
By pause I mean the whole system pause, mouse, other terminals.. Everything.
I think it's related to this bug, it started with the kernel 3.17 (Like the OP, I did update mesa, llvm, libdrm, glamor...)
going back to 3.16 did not fix it, I got to downgrade Mesa and LLVM too (to the first relase of the first of this month to be sure) and after that, I played for like 4 hours without any issue.
I tried to revert 150ac07b855b5c5f879bf6ce9ca421ccd1a6c938 but I got massive gfx corruptions.