Emulator

What did you expect to happen?
Normal game bootup
What steps will reproduce the problem?
Just try to run any game.
What version of Dolphin were you using?

What version of Dolphin used to work?
3.5-415, maybe a few revisions later.

Any other relevant information or links to logs:

(gdb) run
Starting program: /mnt/Files/Develop/dolphin-git/master/dolphin-emu/Binaries/dolphin-emu
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[New Thread 0xb42dcb40 (LWP 6402)]
[New Thread 0xb38ffb40 (LWP 6403)]
[New Thread 0xb134cb40 (LWP 6405)]

Program received signal SIGFPE, Arithmetic exception.
[Switching to Thread 0xb134cb40 (LWP 6405)]
UpdateProjectionHack (iPhackvalue=0xc64d7b0, sPhackvalue=0xc64d7c0)
at /mnt/Files/Develop/dolphin-git/master/dolphin-emu/Source/Core/VideoCommon/Src/VertexShaderManager.cpp:118
118 float fhackvalue1 = 0, fhackvalue2 = 0;
(gdb) bt
#0 UpdateProjectionHack (iPhackvalue=0xc64d7b0, sPhackvalue=0xc64d7c0)
at /mnt/Files/Develop/dolphin-git/master/dolphin-emu/Source/Core/VideoCommon/Src/VertexShaderManager.cpp:118
#1 0x0871c817 in VideoConfig::UpdateProjectionHack (this=0xc64d760) at /mnt/Files/Develop/dolphin-git/master/dolphin-emu/Source/Plugins/Plugin_VideoOGL/Src/Render.cpp:84
#2 0x087186b0 in OGL::VideoBackend::Initialize (this=0xc842a78, window_handle=@0x8994df0: 0x46015f9)
at /mnt/Files/Develop/dolphin-git/master/dolphin-emu/Source/Plugins/Plugin_VideoOGL/Src/main.cpp:166
#3 0x081a84de in Core::EmuThread () at /mnt/Files/Develop/dolphin-git/master/dolphin-emu/Source/Core/Core/Src/Core.cpp:375
#4 0xb5ade007 in ?? () from /usr/lib/i386-linux-gnu/libstdc++.so.6
#5 0xb77b2d4c in start_thread (arg=0xb134cb40) at pthread_create.c:308
#6 0xb596ed3e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130
(gdb)