Closed
Description
Summary
When running TBB flow_graph I sporadically encounter Assertion m_private_counter >= 0 failed (located in the destroy function, line in file: 141) on destruction.
This is a similiar to Issue-639, only that I encounter it in succeeding TBB versions.
One thing that I observed is that the failure does not occur when setting tbb::flow::node_priority_t{0}.
This is not required in this minimal example, but needed in our implementation as we have other nodes with tbb::flow::node_priority_t{0}.
Version
Able to reproduce with TBB 2022.0.0
Environment
- OS Ubuntu 22.04.4 LTS
- Compiler: gcc 11.4.0 | clang 17
Steps To Reproduce
#include <iostream>
#include <cassert>
#include <tbb/flow_graph.h>
int main() {
struct Message {
int idx;
[[maybe_unused]] char pad[1] = {0};
};
using NODE = tbb::flow::function_node<Message, tbb::flow::continue_msg>;
int num_iterations = 10000;
int node_activations = 0;
tbb::flow::graph graph;
NODE node{graph, tbb::flow::serial, [&]([[maybe_unused]] const auto& msg){ node_activations++; },
tbb::flow::queueing{}, tbb::flow::node_priority_t{1}};
for (int i{0}; i < num_iterations; i++) {
node.try_put(Message{i});
}
graph.wait_for_all();
assert (num_iterations == node_activations);
return 0;
}