glxinfo | grep OpenGL
OpenGL vendor string: X.Org
OpenGL renderer string: Gallium 0.4 on AMD PITCAIRN
OpenGL core profile version string: 3.3 (Core Profile) Mesa 10.6.9 (git-8957b69)
OpenGL core profile shading language version string: 3.30
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.0 Mesa 10.6.9 (git-8957b69)
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.0 Mesa 10.6.9 (git-8957b69)
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00
OpenGL ES profile extensions:

01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Pitcairn PRO [Radeon HD 7850 / R7 265 / R9 270 1024SP] [1002:6819]
	Subsystem: PC Partner Limited / Sapphire Technology Radeon HD 7850 2GB GDDR5 DVI-I/DVI-D/HDMI/DP [174b:e221]
	Kernel driver in use: radeon
	Kernel modules: radeon

I am also experiencing a lockup with this game. In my case the lockup happens before I get to the main menu right after starting the game. I have a radeon r9 270x, and I am using the radeonsi driver (version 7.5.0), mesa 11.0.3, llvm 3.7.0, xorg server 1.17.2. The OS is Linux 4.2.2 64 bit.

# glxinfo|grep -i opengl
OpenGL vendor string: X.Org
OpenGL renderer string: Gallium 0.4 on AMD PITCAIRN (DRM 2.43.0, LLVM 3.7.0)
OpenGL core profile version string: 4.1 (Core Profile) Mesa 11.0.3
OpenGL core profile shading language version string: 4.10
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.0 Mesa 11.0.3
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.0 Mesa 11.0.3
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00


# sudo lspci |grep -i vga
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Curacao XT [Radeon R7 370 / R9 270X/370 OEM]

I can confirm this bug. The game crashed my PC on the load screen.

My specs:

CPU AMD A10-7850K
GPU ATI Radeon 7850 1Gb RAM
8 GB RAM
Kernel 4.3.3, 64 bit
xf86-video-ati 7.6.1
mesa 11.0.7
Manjaro Linux

$ glxinfo | grep OpenGL
OpenGL vendor string: X.Org
OpenGL renderer string: Gallium 0.4 on AMD PITCAIRN (DRM 2.43.0, LLVM 3.7.0)
OpenGL core profile version string: 4.1 (Core Profile) Mesa 11.0.7
OpenGL core profile shading language version string: 4.10
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.0 Mesa 11.0.7
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.0 Mesa 11.0.7
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00
OpenGL ES profile extensions:

01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Pitcairn PRO [Radeon HD 7850 / R7 265 / R9 270 1024SP]

Created attachment 120582 [details]
Messages printed into the journalctl log about this crash

Thanks for the reports. VM faults are tricky to find - can one of you provide an apitrace of a lockup so that we can reproduce this?

Since the it exceeds the file limit, I've uploaded the apitrace to my dropbox. 

The link is here. https://www.dropbox.com/s/15mfgng35b2rmt2/SwordCoast.x86_64.1.trace?dl=0

(In reply to James from comment #7)
> The link is here.
> https://www.dropbox.com/s/15mfgng35b2rmt2/SwordCoast.x86_64.1.trace?dl=0

I don't get any VM faults when replaying that, let alone a lockup, neither on Kaveri nor Verde. Does replaying this apitrace reproduce the problem for you?

(In reply to Michel Dänzer from comment #8)
> (In reply to James from comment #7)
> > The link is here.
> > https://www.dropbox.com/s/15mfgng35b2rmt2/SwordCoast.x86_64.1.trace?dl=0
> 
> I don't get any VM faults when replaying that, let alone a lockup, neither
> on Kaveri nor Verde. Does replaying this apitrace reproduce the problem for
> you?

Yes, it replays up to the splash screen then hard locks my PC. Although I'm using a 7850  wouldn't be Kaveri or Verde. It would be Pitcarin/GCN. Don't know if that makes a difference.

(In reply to James from comment #9)
> (In reply to Michel Dänzer from comment #8)
> > (In reply to James from comment #7)
> > > The link is here.
> > > https://www.dropbox.com/s/15mfgng35b2rmt2/SwordCoast.x86_64.1.trace?dl=0
> > 
> > I don't get any VM faults when replaying that, let alone a lockup, neither
> > on Kaveri nor Verde. Does replaying this apitrace reproduce the problem for
> > you?
> 
> Yes, it replays up to the splash screen then hard locks my PC. Although I'm
> using a 7850 so it wouldn't be Kaveri or Verde. It would be Pitcarin/GCN. Don't
> know if that makes a difference.

Does it still happen with current Mesa git? If so, can you try to run it with this environment variable?

R600_DEBUG=switch_on_eop

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