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fix(qsa): clamp the compress gather to the rows this forward has #38346

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Merged
alexnails merged 3 commits into from
Sep 12, 2026
+1 −0
Merged

fix(qsa): clamp the compress gather to the rows this forward has #38346

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3511a74
fix(qsa): clamp the compress gather to the rows this forward has
ehuaa Sep 9, 2026
83af734
Merge branch 'main' into qsa-compress-gather-bounds
ehuaa Sep 9, 2026
081b950
Merge branch 'main' into qsa-compress-gather-bounds
ehuaa Sep 11, 2026
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1 change: 1 addition & 0 deletions python/sglang/srt/layers/attention/qsa/qsa_indexer.py
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Original file line number Diff line number Diff line change
Expand Up @@ -321,6 +321,7 @@ def update_key_state_and_compress(
self.compress_ratio, device=member_rows.device, dtype=torch.long
)
source_keys = token_k
group_locs = group_locs.clamp_max(source_keys.shape[0] - 1)
source_rope = metadata.extend_rope_matrix
if source_rope is None:
source_rope = build_rope_position_matrix(
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