llama.cpp/ggml
RealOrko 2dcb7f74ed
fix: free ctx_copy in ggml_opt_free to plug per-training-session leak (#21592)
* fix: free ctx_copy in ggml_opt_free to plug per-training-session leak

ggml_opt_alloc populates opt_ctx->ctx_copy via a free+init pair every
time the allocated graph shape changes. The last ctx_copy from the
final ggml_opt_alloc call survives until ggml_opt_free is invoked,
but ggml_opt_free was only freeing ctx_static and ctx_cpu, never
ctx_copy. Each opt_ctx lifetime therefore leaks the final per-batch
context — ~900 KB for a typical GNN training session in
sindarin-pkg-tensor, surfaced via AddressSanitizer.

ctx_copy is nullptr-initialized and ggml_free() handles NULL safely,
so the new release is guard-free.

* Update ggml/src/ggml-opt.cpp

Co-authored-by: Johannes Gäßler <johannesg@5d6.de>

---------

Co-authored-by: realorko <realorko@nowhere.com>
Co-authored-by: Johannes Gäßler <johannesg@5d6.de>
2026-04-08 17:40:15 +02:00
..
cmake ggml: Skip backend library linking code when GGML_BACKEND_DL=ON (#15094) 2025-08-07 13:45:41 +02:00
include ggml : deprecate GGML_OP_ADD1 (#21363) 2026-04-07 15:28:27 +03:00
src fix: free ctx_copy in ggml_opt_free to plug per-training-session leak (#21592) 2026-04-08 17:40:15 +02:00
.gitignore vulkan : cmake integration (#8119) 2024-07-13 18:12:39 +02:00
CMakeLists.txt ggml : bump version to 0.9.11 (ggml/1456) 2026-04-02 10:39:00 +03:00