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f174b4e688
A forced setup_filter_graphs() deactivates and re-instantiates every graph, which frees and recreates the underlying plugin handles (node_cleanup sets node->hndl[i] = NULL before re-instantiating). This was done on a graph that was still referenced by the RT data-loop snapshot (filter_graph[]), so the RT thread could run a graph whose handles were NULL mid-rebuild, leading to a NULL handle dereference in the filter-graph process path. Mirror the safe ordering already used by load_filter_graph()/clean_filter_handles(): before reconfiguring, mark the graphs not-setup and sync_filter_graph() so the data loop drops them from filter_graph[] under the loop lock. They are republished by the sync that follows setup. The cheap snapshot swap is done under the lock; the heavy re-instantiation stays off the RT path. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> |
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