From: Andrei <redacted>
Date: Wed, 3 Jun 2026 19:51:18 +0000 (-0700)
Subject: mtmd: fix Gemma 4 unified FPE (#24088)
X-Git-Tag: upstream/0.0.10438~942
X-Git-Url: https://git.djapps.eu/?a=commitdiff_plain;h=94a220cd6745e6e3f8de62870b66fd5b9bc92700;p=pkg%2Fggml%2Fsources%2Fllama.cpp

mtmd: fix Gemma 4 unified FPE (#24088)
---

diff --git a/tools/mtmd/clip.cpp b/tools/mtmd/clip.cpp
index 1abde5fb5..200819815 100644
--- a/tools/mtmd/clip.cpp
+++ b/tools/mtmd/clip.cpp
@@ -247,11 +247,11 @@ clip_graph::clip_graph(clip_ctx * ctx, const clip_image_f32 & img) :
         n_embd(hparams.n_embd),
         n_head(hparams.n_head),
         n_head_kv(hparams.n_head_kv),
-        d_head(n_embd / n_head),
+        d_head(n_head > 0 ? n_embd / n_head : 0),
         n_layer(hparams.n_layer),
         n_mmproj_embd(clip_n_mmproj_embd(ctx)),
         eps(hparams.eps),
-        kq_scale(1.0f / sqrtf((float)d_head)),
+        kq_scale(d_head > 0 ? 1.0f / sqrtf((float)d_head) : 0.0f),
         flash_attn_type(ctx->flash_attn_type) {
     struct ggml_init_params params = {
         /*.mem_size   =*/ ctx->buf_compute_meta.size(),