| What | Removed | Added |
|---|---|---|
| Summary | Long-running OpenCL kernels cause ring stalls and GPU lockups on Kabini | Long-running OpenCL kernels cause ring stalls and GPU lockups on Kabini when radeon.lockup_timeout is enabled |
Comment # 2
on bug 99312
from Vedran Miletić
(In reply to John Bridgman from comment #1) > If you have not already done so, try disabling the watchdog timer: > > > MODULE_PARM_DESC(lockup_timeout, "GPU lockup timeout in ms (default 10000 = > 10 seconds, 0 = disable)"); > module_param_named(lockup_timeout, radeon_lockup_timeout, int, 0444); > Yup, that works around the problem. > As part of HSA/ROC development we dropped the priority of compute work > relative to graphics which improved interactivity and *almost* eliminated > timeouts without having to disable the timer - when I get back in the > office I'll dig up the changes. In the meantime, I think disabling the timer > will do what you need although you will still have sluggish graphics while > long-running kernels are active. > Eager to hear the details.
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