[USRP-users] Re: Assertion fail when destroying tx streamer (UHD 4)

[Marcus D. Leech]

On 07/07/2021 09:09 AM, Viktor Erdelyi wrote:

Hi all,

I get an undecipherable assertion failure when running the following simple code using a 1Gbps Ethernet link. The error happens when t1 goes out of scope, every time I run the application. What am I missing?

int main(int argc, char *argv[]) {
    uhd::device_addr_t devAddresses("addr=192.168.10.2");
    auto usrp = uhd::usrp::multi_usrp::make(devAddresses);
    uhd::stream_args_t stream_args("fc32", "sc16");
    stream_args.channels.push_back(0);
    {
        auto t1 = usrp->get_tx_stream(stream_args);
        std::cout << "t1 alive" << std::endl;
    }
    std::cout << "t1 dead, OK" << std::endl;
    return 0;

}

The output and the error is as follows:

[INFO] [UHD] linux; GNU C++ version 11.0.1 20210324 (Red Hat 11.0.1-0); Boost_107500; UHD_4.0.0.0

[INFO] [X300] X300 initialization sequence...
[INFO] [X300] Maximum frame size: 1472 bytes.
[INFO] [X300] Radio 1x clock: 200 MHz
t1 alive
[WARNING] [0/Radio#0] Attempting to set tick rate to 0. Skipping.

/usr/include/c++/11/bits/stl_vector.h:1045: std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::operator[](std::vector<_Tp, _Alloc>::size_type) [with _Tp = boost::detail::adj_list_gen<boost::adjacency_list<boost::vecS, boost::vecS, boost::bidirectionalS, boost::property<uhd::rfnoc::detail::graph_t::vertex_property_t, uhd::rfnoc::node_t*>, boost::property<uhd::rfnoc::detail::graph_t::edge_property_t, uhd::rfnoc::graph_edge_t> >, boost::vecS, boost::vecS, boost::bidirectionalS, boost::property<uhd::rfnoc::detail::graph_t::vertex_property_t, uhd::rfnoc::node_t*>, boost::property<uhd::rfnoc::detail::graph_t::edge_property_t, uhd::rfnoc::graph_edge_t>, boost::no_property, boost::listS>::config::stored_vertex; _Alloc = std::allocator<boost::detail::adj_list_gen<boost::adjacency_list<boost::vecS, boost::vecS, boost::bidirectionalS, boost::property<uhd::rfnoc::detail::graph_t::vertex_property_t, uhd::rfnoc::node_t*>, boost::property<uhd::rfnoc::detail::graph_t::edge_property_t, uhd::rfnoc::graph_edge_t> >, boost::vecS, boost::vecS, boost::bidirectionalS, boost::property<uhd::rfnoc::detail::graph_t::vertex_property_t, uhd::rfnoc::node_t*>, boost::property<uhd::rfnoc::detail::graph_t::edge_property_t, uhd::rfnoc::graph_edge_t>, boost::no_property, boost::listS>::config::stored_vertex>; std::vector<_Tp, _Alloc>::reference = boost::detail::adj_list_gen<boost::adjacency_list<boost::vecS, boost::vecS, boost::bidirectionalS, boost::property<uhd::rfnoc::detail::graph_t::vertex_property_t, uhd::rfnoc::node_t*>, boost::property<uhd::rfnoc::detail::graph_t::edge_property_t, uhd::rfnoc::graph_edge_t> >, boost::vecS, boost::vecS, boost::bidirectionalS, boost::property<uhd::rfnoc::detail::graph_t::vertex_property_t, uhd::rfnoc::node_t*>, boost::property<uhd::rfnoc::detail::graph_t::edge_property_t, uhd::rfnoc::graph_edge_t>, boost::no_property, boost::listS>::config::stored_vertex&; std::vector<_Tp, _Alloc>::size_type = long unsigned int]: Assertion '__n < this->size()' failed.

./quickRun.sh: line 8: 47138 Aborted (core dumped) ./$OUTNAME

Environment:

Fedora 34 x64
UHD 4.0.0.0
USRP X310 w/ UBX-160 x 2

Thanks,
Viktor
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What happens if you sleep for perhaps 1 second prior to exiting?
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