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Fix: re-guard dispatch_shape() do-while against empty core mask #569

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Merged
poursoul merged 1 commit into from
Apr 16, 2026
+14 −0
Merged

Fix: re-guard dispatch_shape() do-while against empty core mask #569

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7 changes: 7 additions & 0 deletions src/a2a3/runtime/tensormap_and_ringbuffer/aicpu/aicpu_executor.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1097,6 +1097,13 @@ struct AicpuExecutor {
}
}

// Guard: a preceding task in this batch may have drained all cores;
// re-enqueue the rest of the batch instead of popping an empty mask.
if (!cores.has_value()) {
rt->scheduler.ready_queues[static_cast<int32_t>(shape)].push_batch(&batch[bi], got - bi);
break;
}

dispatched_any = true;
try_pushed = true;
#if PTO2_SCHED_PROFILING
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7 changes: 7 additions & 0 deletions src/a5/runtime/tensormap_and_ringbuffer/aicpu/aicpu_executor.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1081,6 +1081,13 @@ struct AicpuExecutor {
}
}

// Guard: a preceding task in this batch may have drained all cores;
// re-enqueue the rest of the batch instead of popping an empty mask.
if (!cores.has_value()) {
rt->scheduler.ready_queues[static_cast<int32_t>(shape)].push_batch(&batch[bi], got - bi);
break;
}

dispatched_any = true;
try_pushed = true;
#if PTO2_SCHED_PROFILING
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