https://bugs.freedesktop.org/show_bug.cgi?id=99312
Bug ID: 99312
Summary: Long-running OpenCL kernels cause ring stalls and GPU
lockups on Kabini
Product: Mesa
Version: 13.0
Hardware: Other
OS: All
Status: NEW
Severity: normal
Priority: medium
Component: Drivers/Gallium/radeonsi
Assignee: dri-devel at lists.freedesktop.org
Reporter: vedran at miletic.net
QA Contact: dri-devel at lists.freedesktop.org
Running long lasting OpenCL kernels (e.g. GROMACS with a system of many atoms)
using kernel 4.8.15, Mesa git, and LLVM git on Kabini APU:
vendor_id : AuthenticAMD
cpu family : 22
model : 0
model name : AMD Athlon(tm) 5350 APU with Radeon(tm) R3
stepping : 1
microcode : 0x700010b
with GPU:
00:01.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc.
[AMD/ATI] Kabini [Radeon HD 8400 / R3 Series] [1002:9830]
causes GPU lockups like:
[338584.980657] radeon 0000:00:01.0: ring 0 stalled for more than 10351msec
[338584.980811] radeon 0000:00:01.0: GPU lockup (current fence id
0x00000000000827c1 last fence id 0x00000000000827c2 on ring 0)
[338585.484633] radeon 0000:00:01.0: ring 0 stalled for more than 10855msec
[338585.484789] radeon 0000:00:01.0: GPU lockup (current fence id
0x00000000000827c1 last fence id 0x00000000000827c2 on ring 0)
[338585.988632] radeon 0000:00:01.0: ring 0 stalled for more than 11359msec
[338585.988787] radeon 0000:00:01.0: GPU lockup (current fence id
0x00000000000827c1 last fence id 0x00000000000827c2 on ring 0)
Machine does not hang. This is reliably reproducible. Any other info I can
provide?
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