[llvm] r345542 - AMDGPU: Enable code object v3 by default

[Michel Dänzer via llvm-commits]

Hi Konstantin,


On 2018-10-29 10:07 p.m., Konstantin Zhuravlyov via llvm-commits wrote:
> Author: kzhuravl
> Date: Mon Oct 29 14:07:27 2018
> New Revision: 345542
> 
> URL: http://llvm.org/viewvc/llvm-project?rev=345542&view=rev
> Log:
> AMDGPU: Enable code object v3 by default
> 
> Differential Revision: https://reviews.llvm.org/D53525

This change caused GPU hangs when running the piglit OpenCL tests using
the Mesa radeonsi driver on Bonaire, via the clover state tracker. Below
is an example of a GPUVM fault which accompanies the hang.

I'm afraid I don't have time to dig further.


[  281.082465] amdgpu 0000:23:00.0: GPU fault detected: 146 0x0008480c
[  281.082502] amdgpu 0000:23:00.0:   VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x00000000
[  281.082533] amdgpu 0000:23:00.0:   VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x0804800C
[  281.082566] amdgpu 0000:23:00.0: VM fault (0x0c, vmid 4, pasid 0) at page 0, read from 'TC2' (0x54433200) (72)


-- 
Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer