Page fault triggered by sdl-test

Created by: FreeFull

Reproduction: Run either make qemu or make virtualbox Select the 800x600 screen resolution Start orbital, open a terminal and run sdl-test Press esc repeatedly until the system freezes

Build information: rustc -V rustc 1.9.0-nightly (a1e29daf1 2016-03-25) git rev-parse HEAD b76ecf3d qemu-system-i386 --version QEMU emulator version 2.5.0, Copyright (c) 2003-2008 Fabrice Bellard uname -a Linux freefull-asus 4.4.5-1-ARCH # 1 SMP PREEMPT Thu Mar 10 07:38:19 CET 2016 x86_64 GNU/Linux

Page fault debug output:

  INT E: Page fault
    CS:  00000008    IP:  00000000    FLG: 00010002
    SS:  00000000    SP:  041B5000    BP:  05FACD28
    AX:  05FACCEC    BX:  838F8000    CX:  83416000    DX:  03D48B5C
    DI:  80BDB000    SI:  80BDB000
    CR0: 80010033    CR2: 00000000    CR3: 00200000    CR4: 00000600
    FSW: 00000000    FCW: 0000037F
    -480: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
    -448: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
    -416: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
    -384: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
    -352: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
    -320: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
    -288: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
    -256: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
    -224: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
    -192: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
    -160: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
    -128: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
    -96: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
    -64: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
    -32: 00000000 00000000 00000000 00000000 00000000 00074FE0 0000000F 0000000F
      0: 841B3000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
     32: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
     64: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
     96: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
    128: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
    160: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
    192: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
    224: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
    256: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
    288: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
    320: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
    352: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
    384: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
    416: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
    448: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
    480: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
    ERR: 00000000

Additional information: The sdl-test window always seems to be displaying white when the page fault happens.