[Bug 88183] radeonsi: R9 280X hangs with SuperTuxKart

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=88183

--- Comment #15 from Alexandre Demers <alexandre.f.demers at gmail.com> ---
(In reply to Alexandre Demers from comment #12)
> (In reply to Alexandre Demers from comment #10)
> > (In reply to Michel Dänzer from comment #6)
> > > I can reproduce the hang with current Mesa Git master, but not with the
> > > Debian 10.3.2 packages. Can you confirm that and if so, can you bisect?
> > > 
> > > Even with 10.3.2 though, there are GPUVM faults, looks like the CB writing
> > > past the end of DXT5 SRGBA textures:
> > > 
> > > VM start=0x262F0000  end=0x26346800 | Texture 512x512x1, 10 levels, 1
> > > samples, dxt5_srgba
> > > [...]
> > > Jan 15 16:52:47 kaveri kernel: [  208.982506] radeon 0000:00:01.0: GPU fault
> > > detected: 146 0x09450014
> > > Jan 15 16:52:47 kaveri kernel: [  208.982511] radeon 0000:00:01.0:  
> > > VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x0002634A
> > > Jan 15 16:52:47 kaveri kernel: [  208.982513] radeon 0000:00:01.0:  
> > > VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x05000014
> > > Jan 15 16:52:47 kaveri kernel: [  208.982514] VM fault (0x04, vmid 2) at
> > > page 156490, write from 'CB0' (0x43423000) (0)
> > > Jan 15 16:52:47 kaveri kernel: [  208.982519] radeon 0000:00:01.0: GPU fault
> > > detected: 146 0x09050014
> > > Jan 15 16:52:47 kaveri kernel: [  208.982520] radeon 0000:00:01.0:  
> > > VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x00026347
> > > Jan 15 16:52:47 kaveri kernel: [  208.982521] radeon 0000:00:01.0:  
> > > VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x05000014
> > > Jan 15 16:52:47 kaveri kernel: [  208.982522] VM fault (0x04, vmid 2) at
> > > page 156487, write from 'CB0' (0x43423000) (0)
> > 
> > I'll try 10.3.2 and launch a bisection, but I need to downgrade my newly
> > updated llvm back to 3.5 first.
> 
> I'm confirming that 10.3.2 works fine.

I'm also seeing the VM faults in dmesg.

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