From 3e5036fbfb1613dc19034844c1989aa645183164 Mon Sep 17 00:00:00 2001
From: Eve <139727413+netrunnereve@users.noreply.github.com>
Date: Sun, 5 Jul 2026 18:38:47 +0000
Subject: [PATCH] abort if we see a multi buffer (#25276)

---
 ggml/src/ggml-backend-meta.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/ggml/src/ggml-backend-meta.cpp b/ggml/src/ggml-backend-meta.cpp
index 7bd329164..1f29ec867 100644
--- a/ggml/src/ggml-backend-meta.cpp
+++ b/ggml/src/ggml-backend-meta.cpp
@@ -1144,6 +1144,11 @@ static enum ggml_status ggml_backend_meta_buffer_init_tensor_impl(ggml_backend_m
         ggml_context          * simple_ctx = stc.ctxs[j].get();
         ggml_backend_buffer_t   simple_buf = buf_ctx->bufs[j].get();
 
+        if ((simple_buf != nullptr) && ggml_backend_buffer_is_multi_buffer(simple_buf)) {
+            // see https://github.com/ggml-org/llama.cpp/issues/22197
+            GGML_ABORT("multi buffers are not supported by the meta backend");
+        }
+
         if (split_dim >= 0 && split_dim < GGML_MAX_DIMS) {
             // TODO: the following assert fails for llama-parallel even though the results are correct:
             // GGML_ASSERT(ggml_is_contiguously_allocated(tensor));