https://s3.amazonaws.com/clickhouse-test-reports/0/8ea7b9c9784f7014dccb4fe0dfd269265126a30d/stress_test__msan_.html

Post-processed traces: https://pastila.nl/?0006a09d/4a3864799d8b23c3998deeefcdca5d8f
Post-processed traces without boring threads: https://pastila.nl/?0006a09d/f342d95a823d513df62d68a5d8a1a50b

Explanation: https://pastila.nl/?000fcc82/3a48f372d3410a8691d50cb5647b2c20
process_it->setUserProcessList(&user_process_list);
        user_process_list.queries.emplace(client_info.current_query_id, &res->get());
        
        user_process_list.user_memory_tracker.setOrRaiseHardLimit(settings.max_memory_usage_for_user);
        user_process_list.user_memory_tracker.setSoftLimit(settings.memory_overcommit_ratio_denominator_for_user);
        user_process_list.user_memory_tracker.setDescription("(for user)");
        if (!user_process_list.user_throttler)
        {
            if (settings.max_network_bandwidth_for_user)
                user_process_list.user_throttler = std::make_shared<Throttler>(settings.max_network_bandwidth_for_user, total_network_throttler);
            else if (settings.max_network_bandwidth_for_all_users)
                user_process_list.user_throttler = total_network_throttler;
        }
        if (!total_network_throttler && settings.max_network_bandwidth_for_all_users)
        {
            total_network_throttler = std::make_shared<Throttler>(settings.max_network_bandwidth_for_all_users);
        }
    }
    return res;
}
ProcessListEntry::~ProcessListEntry()
{
    auto lock = parent.safeLock();
    String user = it->getClientInfo().current_user;
    String query_id = it->getClientInfo().current_query_id;
    IAST::QueryKind query_kind = it->query_kind;
    const QueryStatus * process_list_element_ptr = &*it;
    auto user_process_list_it = parent.user_to_queries.find(user);
    if (user_process_list_it == parent.user_to_queries.end())
    {