---
tools/intel_gpu_top.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/tools/intel_gpu_top.c b/tools/intel_gpu_top.c
index f60e58b..7574ef0 100644
--- a/tools/intel_gpu_top.c
+++ b/tools/intel_gpu_top.c
@@ -344,6 +344,15 @@ static void ring_sample(struct ring *ring)
ring->head = ring_read(ring, RING_HEAD) & HEAD_ADDR;
ring->tail = ring_read(ring, RING_TAIL) & TAIL_ADDR;
+ /* We sometimes read spurious, out of range pointers which
+ * we want to ignore. We treat them as idle for now... */
+ if (ring->head > ring->size || ring->tail > ring->size)
+ {
+ fprintf(stderr, "Ignoring spurious ring pointer\n");
+ ring->idle++;
+ return;
+ }
+
if (ring->tail == ring->head)
ring->idle++;
--
2.0.1
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