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ggml : fix ggml_backend_buft_get_alloc_size() guard #28038

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Merged
ggerganov merged 1 commit into from
Aug 30, 2026
Merged

ggml : fix ggml_backend_buft_get_alloc_size() guard #28038

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1 change: 1 addition & 0 deletions ggml/src/ggml-backend.cpp
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Expand Up @@ -70,6 +70,7 @@ size_t ggml_backend_buft_get_alloc_size(ggml_backend_buffer_type_t buft, const s
// if you hit this assert, update ggml_backend_op_alloc_size_may_expand() accordingly
GGML_ASSERT(size <= ggml_nbytes(tensor) ||
ggml_op_is_empty(tensor->op) ||
ggml_is_quantized(tensor->type) || // [TAG_ALLOC_SIZE_EXPAND]
ggml_backend_op_alloc_size_may_expand(tensor->op));

return size;
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1 change: 1 addition & 0 deletions ggml/src/ggml-cuda/ggml-cuda.cu
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Expand Up @@ -915,6 +915,7 @@ static size_t ggml_backend_cuda_buffer_type_get_alloc_size(ggml_backend_buffer_t
: ggml_nbytes(tensor);
int64_t ne0 = tensor->ne[0];

// [TAG_ALLOC_SIZE_EXPAND]
if (ggml_is_quantized(tensor->type)) {
if (ne0 % MATRIX_ROW_PADDING != 0) {
GGML_ASSERT(tensor->nb[0] == ggml_element_size(tensor));
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