| Bug ID | 104604 |
|---|---|
| Summary | [amdgpu/radeon][regression, CIK] Prefetch the compute shader = to TC L2 (4a4ff66dbe) causes GPU VM errors when running OpenCL kernels on H= awaii |
| Product | Mesa |
| Version | 17.1 |
| Hardware | All |
| OS | All |
| Status | NEW |
| Severity | critical |
| Priority | medium |
| Component | Drivers/Gallium/radeonsi |
| Assignee | dri-devel@lists.freedesktop.org |
| Reporter | vedran@miletic.net |
| QA Contact | dri-devel@lists.freedesktop.org |
Commit 4a4ff66dbe radeonsi: also prefetch compute shaders enab= led prefetching the compute shader to TC L2 for CIK+. This causes GPU VM errors on Hawaii, Kabini, and likely other CIK GPUs when running certain OpenCL programs (it seems that the key is to call clCreateContext() twice or more, see below) w= ith Clover, both with amdgpu and radeon kernel drivers. I have tested with 01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Hawaii XT GL [FirePro W9100] [1002:67a0] on Fedora rawhide (28) with kernel 4.15.0-0.rc7.git2.1.fc28.x86_64. I'll minimize the example program that causes this (right now using GROMACS tests, but that's unnecessarily complex), and provide the details (grepped + full dmesg) in the comments for both amdgpu and radeon kernel drivers.
| What | Removed | Added |
|---|---|---|
| Blocks | 99553 |
| What | Removed | Added |
|---|---|---|
| Status | NEW | RESOLVED |
| Resolution | --- | MOVED |
-- GitLab Migration Automatic Message -- This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity. You can subscribe and participate further through the new bug through this = link to our GitLab instance: https://gitlab.freedesktop.org/mesa/mesa/issues/1300.