| What | Removed | Added |
|---|---|---|
| CC | mail@maciej.szmigiero.name |
Comment # 2
on bug 105113
from Maciej S. Szmigiero
I've also hit this issue on "Oland PRO [Radeon R7 240/340] (rev 87)" with mesa-18.1.0_rc2, llvm-6.0.0 and kernel 4.16.5. The crash happens at "cl/program/execute/calls-struct.cl" from piglit as well. It happens both from a X session and from a KMS console. The exact crash looks like this: [ 171.969488] radeon 0000:20:00.0: GPU fault detected: 147 0x06106001 [ 171.969489] radeon 0000:20:00.0: VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x00500030 [ 171.969490] radeon 0000:20:00.0: VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x10060001 [ 171.969491] VM fault (0x01, vmid 8) at page 5242928, read from CB (96) Then the radeon driver tries to reset the GPU endlessly. I've tried pcie_gen2=0, msi=0, dpm=0, hard_reset=1, vm_size=16 in various combinations, nothing seems to help (msi=0 gives a ton of IOMMU errors, BTW). Also have tried amdgpu which gives a similar crash (it looks like this driver didn't attempt to reset the GPU afterwards): [ 435.596230] amdgpu 0000:20:00.0: GPU fault detected: 147 0x0c086002 [ 435.596233] amdgpu 0000:20:00.0: VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x00500060 [ 435.596235] amdgpu 0000:20:00.0: VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x08060002 [ 435.596239] amdgpu 0000:20:00.0: VM fault (0x02, vmid 4) at page 5242976, read from '' (0x00000000) (96) [ 435.596245] amdgpu 0000:20:00.0: GPU fault detected: 147 0x0c086002 [ 435.596247] amdgpu 0000:20:00.0: VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x00500060 [ 435.596248] amdgpu 0000:20:00.0: VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x08050002 [ 435.596252] amdgpu 0000:20:00.0: VM fault (0x02, vmid 4) at page 5242976, read from '' (0x00000000) (80) [ 435.596256] amdgpu 0000:20:00.0: GPU fault detected: 147 0x0c086002 [ 435.596258] amdgpu 0000:20:00.0: VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x00500060 [ 435.596260] amdgpu 0000:20:00.0: VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x08010002 [ 435.596263] amdgpu 0000:20:00.0: VM fault (0x02, vmid 4) at page 5242976, read from '' (0x00000000) (16) [ 435.596267] amdgpu 0000:20:00.0: GPU fault detected: 147 0x0c085002 [ 435.596269] amdgpu 0000:20:00.0: VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x00500060 [ 435.596271] amdgpu 0000:20:00.0: VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x08050002 [ 435.596274] amdgpu 0000:20:00.0: VM fault (0x02, vmid 4) at page 5242976, read from '' (0x00000000) (80) [ 435.596278] amdgpu 0000:20:00.0: GPU fault detected: 147 0x0c085002 This might be (also?) a kernel bug since a userspace program should not be able to crash a GPU, regardless how incorrect command stream it sends to one.
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