fix: harden backend loading (#9024)

* wrap ggml_backend_load_best in try/catch
* ignore non-ollama paths
This commit is contained in:
Michael Yang
2025-02-11 23:36:53 +00:00
committed by GitHub
parent 0189bdd0b7
commit 49df03da9a
3 changed files with 97 additions and 22 deletions

View File

@@ -512,32 +512,33 @@ static ggml_backend_reg_t ggml_backend_load_best(const char * name, bool silent,
}
fs::directory_iterator dir_it(search_path, fs::directory_options::skip_permission_denied);
for (const auto & entry : dir_it) {
if (entry.is_regular_file()) {
std::wstring filename = entry.path().filename().wstring();
std::wstring ext = entry.path().extension().wstring();
if (filename.find(file_prefix) == 0 && ext == backend_filename_suffix()) {
dl_handle_ptr handle { dl_load_library(entry.path().wstring()) };
if (!handle && !silent) {
GGML_LOG_ERROR("%s: failed to load %s\n", __func__, utf16_to_utf8(entry.path().wstring()).c_str());
}
if (handle) {
try {
if (entry.is_regular_file()) {
std::wstring filename = entry.path().filename().wstring();
std::wstring ext = entry.path().extension().wstring();
if (filename.find(file_prefix) == 0 && ext == backend_filename_suffix()) {
dl_handle_ptr handle { dl_load_library(entry.path().wstring()) };
if (!handle) {
GGML_LOG_ERROR("%s: failed to load %s\n", __func__, utf16_to_utf8(entry.path().wstring()).c_str());
continue;
}
auto score_fn = (ggml_backend_score_t) dl_get_sym(handle.get(), "ggml_backend_score");
if (score_fn) {
int s = score_fn();
#ifndef NDEBUG
GGML_LOG_DEBUG("%s: %s score: %d\n", __func__, utf16_to_utf8(entry.path().wstring()).c_str(), s);
#endif
if (s > best_score) {
best_score = s;
best_path = entry.path().wstring();
}
} else {
if (!silent) {
GGML_LOG_INFO("%s: failed to find ggml_backend_score in %s\n", __func__, utf16_to_utf8(entry.path().wstring()).c_str());
}
if (!score_fn) {
GGML_LOG_DEBUG("%s: failed to find ggml_backend_score in %s\n", __func__, utf16_to_utf8(entry.path().wstring()).c_str());
continue;
}
int s = score_fn();
GGML_LOG_DEBUG("%s: %s score: %d\n", __func__, utf16_to_utf8(entry.path().wstring()).c_str(), s);
if (s > best_score) {
best_score = s;
best_path = entry.path().wstring();
}
}
}
} catch (const std::exception & e) {
GGML_LOG_ERROR("%s: failed to load %s: %s\n", __func__, utf16_to_utf8(entry.path().wstring()).c_str(), e.what());
}
}
}

View File

@@ -79,6 +79,11 @@ var OnceLoad = sync.OnceFunc(func() {
continue
}
if abspath != filepath.Dir(exe) && !strings.Contains(abspath, filepath.FromSlash("lib/ollama")) {
slog.Debug("skipping path which is not part of ollama", "path", abspath)
continue
}
if _, ok := visited[abspath]; !ok {
func() {
slog.Debug("ggml backend load all from path", "path", abspath)