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rpc : check src buffer when copying tensor (#16421)

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Only dst buffer is guaranteed to be an RPC buffer. Add check for the src
one.
This commit is contained in:
Radoslav Gerganov
2025-10-04 16:22:45 +03:00
committed by GitHub
parent 898acba681
commit f39283960b
1 changed files with 22 additions and 15 deletions
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37
ggml/src/ggml-rpc/ggml-rpc.cpp
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@@ -631,23 +631,30 @@ static void ggml_backend_rpc_buffer_get_tensor(ggml_backend_buffer_t buffer, con
RPC_STATUS_ASSERT(status);
}
static bool ggml_backend_buffer_is_rpc(ggml_backend_buffer_t buffer) {
return buffer->iface.free_buffer == ggml_backend_rpc_buffer_free_buffer;
}
static bool ggml_backend_rpc_buffer_cpy_tensor(ggml_backend_buffer_t buffer, const ggml_tensor * src, ggml_tensor * dst) {
// check if src and dst are on the same server
ggml_backend_buffer_t src_buffer = src->buffer;
ggml_backend_rpc_buffer_context * src_ctx = (ggml_backend_rpc_buffer_context *)src_buffer->context;
ggml_backend_buffer_t dst_buffer = dst->buffer;
ggml_backend_rpc_buffer_context * dst_ctx = (ggml_backend_rpc_buffer_context *)dst_buffer->context;
if (src_ctx->sock != dst_ctx->sock) {
return false;
if (ggml_backend_buffer_is_rpc(src->buffer)) {
// check if src and dst are on the same server
ggml_backend_buffer_t src_buffer = src->buffer;
ggml_backend_rpc_buffer_context * src_ctx = (ggml_backend_rpc_buffer_context *)src_buffer->context;
ggml_backend_buffer_t dst_buffer = dst->buffer;
ggml_backend_rpc_buffer_context * dst_ctx = (ggml_backend_rpc_buffer_context *)dst_buffer->context;
if (src_ctx->sock != dst_ctx->sock) {
return false;
}
ggml_backend_rpc_buffer_context * ctx = (ggml_backend_rpc_buffer_context *)buffer->context;
rpc_msg_copy_tensor_req request;
request.src = serialize_tensor(src);
request.dst = serialize_tensor(dst);
rpc_msg_copy_tensor_rsp response;
bool status = send_rpc_cmd(ctx->sock, RPC_CMD_COPY_TENSOR, &request, sizeof(request), &response, sizeof(response));
RPC_STATUS_ASSERT(status);
return response.result;
}
ggml_backend_rpc_buffer_context * ctx = (ggml_backend_rpc_buffer_context *)buffer->context;
rpc_msg_copy_tensor_req request;
request.src = serialize_tensor(src);
request.dst = serialize_tensor(dst);
rpc_msg_copy_tensor_rsp response;
bool status = send_rpc_cmd(ctx->sock, RPC_CMD_COPY_TENSOR, &request, sizeof(request), &response, sizeof(response));
RPC_STATUS_ASSERT(status);
return response.result;
return false;
}
static void ggml_backend_rpc_buffer_clear(ggml_backend_buffer_t buffer, uint8_t value) {