| What | Removed | Added |
|---|---|---|
| Summary | [CIK] [regression] clinfo hangs indefinitely in si_create_context | [CIK] [regression] All opencl apps hangs indefinitely in si_create_context |
| CC | galkin-vv@ya.ru |
Comment # 2
on bug 108879
from Vasily Galkin
Faced same problem on CIK gpu: clinfo hanging at start since 18.3.0. Stack trace is the same - the sys_futex never returns. The issue reproduces every time. Most important - it affects ALL applications using opencl I tried (clinfo, fresh manual build of https://github.com/ihaque/memtestCL and closed-source Geeks3D GpuTest). They all hang at initialization with similar stack trace. I'm renaming the bug to indicate that all apps are affected. GPU is 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Tobago PRO [Radeon R7 360 / R9 360 OEM] (rev 81) (prog-if 00 [VGA controller]) ("Tobago" is less common variant of "Bonaire" gpus). Reproduced on two different motherboards (however, both are PCIe 2.0/1.1 - so no PCIe3.0 atomics if it is related). Changing kernels in 4.17-4.20 range doesn't matter. For example vanilla 4.20.0 with ubuntu config - 4.20.0-042000-generic can be used for issue reproduaction. Distros also doesn't matter I tried debian and vanilla mesa build on archlinux Kernel parameters are: BOOT_IMAGE=/boot/vmlinuz-4.20.0-042000-generic root=UUID=7917286f-3223-4003-8d58-a2bff30a7730 ro quiet intel_iommu=on amdgpu.si_support=1 amdgpu.cik_support=1 amdgpu.dc=1 acpi_enforce_resources=off radeon.si_support=0 radeon.cik_support=0 radeon.modeset=1 nouveau.modeset=1 zswap.enabled=1 zswap.zpool=zsmalloc zswap.compressor=lz4hc zswap.max_pool_percent=42 (actually intel_iommu is DISABLED in bios, so I don't think it is related) Unlike opencl, both vulkan and opengl works completely fine. Donwgrading mesa-opencl-icd to 18.2.8 fixes the problem. This deb package downgrades only /usr/lib/x86_64-linux-gnu/gallium-pipe/pipe_nouveau.so /usr/lib/x86_64-linux-gnu/gallium-pipe/pipe_r300.so /usr/lib/x86_64-linux-gnu/gallium-pipe/pipe_r600.so /usr/lib/x86_64-linux-gnu/gallium-pipe/pipe_radeonsi.so /usr/lib/x86_64-linux-gnu/gallium-pipe/pipe_swrast.so /usr/lib/x86_64-linux-gnu/gallium-pipe/pipe_vmwgfx.so /usr/lib/x86_64-linux-gnu/libMesaOpenCL.so.1.0.0 other mesa libs are kept from 18.3.0
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