[Intel-gfx] [PATCH 1/1] drm/i915/gt: Wait longer for tasks in migrate selftest

Andi Shyti andi.shyti at linux.intel.com
Thu Aug 31 18:18:35 UTC 2023


Hi Jonathan,

On Mon, Aug 28, 2023 at 12:28:52PM -0700, Jonathan Cavitt wrote:
> The thread_global_copy subtest of the live migrate selftest creates a
> large number of threads and waits 10ms for them all to start.  This is
> not enough time to wait for the threaded tasks to start, as some may
> need to wait for additional ring space to be granted.  Threads that do
> so are at risk of getting stopped (signaled) in the middle of waiting
> for additional space, which can result in ERESTARTSYS getting reported
> erroneously by i915_request_wait.
> 
> Instead of waiting a flat 10ms for the threads to start, wait 10ms per
> thread.  This grants enough of a buffer for each thread to wait for
> additional ring space when needed.
> 
> Signed-off-by: Jonathan Cavitt <jonathan.cavitt at intel.com>

Applied to drm-intel-gt-next.

Thanks,
Andi


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