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fix: harden backend loading (#9024)

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* wrap ggml_backend_load_best in try/catch
* ignore non-ollama paths
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Michael Yang 2025-02-11 23:36:53 +00:00 committed by GitHub
parent 0189bdd0b7
commit 49df03da9a
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3 changed files with 97 additions and 22 deletions
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69
llama/patches/0017-try-catch-backend-load.patch Normal file
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@ -0,0 +1,69 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Michael Yang <mxyng@pm.me>
Date: Tue, 11 Feb 2025 14:06:36 -0800
Subject: [PATCH] try/catch backend load
---
ggml/src/ggml-backend-reg.cpp | 45 ++++++++++++++++++-----------------
1 file changed, 23 insertions(+), 22 deletions(-)
diff --git a/ggml/src/ggml-backend-reg.cpp b/ggml/src/ggml-backend-reg.cpp
index ac5cda07..374c3b21 100644
--- a/ggml/src/ggml-backend-reg.cpp
+++ b/ggml/src/ggml-backend-reg.cpp
@@ -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());
}
}
}

45
ml/backend/ggml/ggml/src/ggml-backend-reg.cpp vendored
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());
}
}
}

5
ml/backend/ggml/ggml/src/ggml.go
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)