Had the similar problem after upgrade from 20.12.5.14

```
[ch-01] 2021.02.24 20:31:13.845342 [ 17553 ] <Fatal> BaseDaemon: ########################################
[ch-01] 2021.02.24 20:31:13.845469 [ 17553 ] <Fatal> BaseDaemon: (version 21.2.4.6 (official build), build id: 6E2E926515F53BCF094B3D6BD7E9EB65BC5BCE6B) (from thread 10568) (query_id: b03fb6ff-7fe1-400e-bb55-d71b0c611525) Received signal Segmentation fault (11)
[ch-01] 2021.02.24 20:31:13.845530 [ 17553 ] <Fatal> BaseDaemon: Address: 0x90 Access: read. Address not mapped to object.
[ch-01] 2021.02.24 20:31:13.845583 [ 17553 ] <Fatal> BaseDaemon: Stack trace: 0xf518654 0xf518379 0xf525f05 0xf526640 0xe6ad857 0xf63b0ac 0xf63b879 0xf63b14c 0xf63b879 0xf63b14c 0xf63b839 0xf63ed80 0xf6432b6 0x84f6e4f 0x84fa8e3 0x7f6e6c5c9ea5 0x7f6e6c2f28dd
[ch-01] 2021.02.24 20:31:13.845660 [ 17553 ] <Fatal> BaseDaemon: 2. ? @ 0xf518654 in /usr/bin/clickhouse
[ch-01] 2021.02.24 20:31:13.845763 [ 17553 ] <Fatal> BaseDaemon: 3. DB::Connection::receivePacket(std::__1::function<void (Poco::Net::Socket&)>) @ 0xf518379 in /usr/bin/clickhouse
[ch-01] 2021.02.24 20:31:13.845821 [ 17553 ] <Fatal> BaseDaemon: 4. DB::MultiplexedConnections::receivePacketUnlocked(std::__1::function<void (Poco::Net::Socket&)>) @ 0xf525f05 in /usr/bin/clickhouse
[ch-01] 2021.02.24 20:31:13.845886 [ 17553 ] <Fatal> BaseDaemon: 5. DB::MultiplexedConnections::drain() @ 0xf526640 in /usr/bin/clickhouse
[ch-01] 2021.02.24 20:31:13.845969 [ 17553 ] <Fatal> BaseDaemon: 6. DB::RemoteQueryExecutor::finish(std::__1::unique_ptr<DB::RemoteQueryExecutorReadContext, std::__1::default_delete<DB::RemoteQueryExecutorReadContext> >*) @ 0xe6ad857 in /usr/bin/clickhouse
[ch-01] 2021.02.24 20:31:13.846067 [ 17553 ] <Fatal> BaseDaemon: 7. DB::PipelineExecutor::tryAddProcessorToStackIfUpdated(DB::ExecutingGraph::Edge&, std::__1::queue<DB::ExecutingGraph::Node*, std::__1::deque<DB::ExecutingGraph::Node*, std::__1::allocator<DB::ExecutingGraph::Node*> > >&, std::__1::queue<DB::ExecutingGraph::Node*, std::__1::deque<DB::ExecutingGraph::Node*, std::__1::allocator<DB::ExecutingGraph::Node*> > >&, unsigned long) @ 0xf63b0ac in /usr/bin/clickhouse
[ch-01] 2021.02.24 20:31:13.846135 [ 17553 ] <Fatal> BaseDaemon: 8. DB::PipelineExecutor::prepareProcessor(unsigned long, unsigned long, std::__1::queue<DB::ExecutingGraph::Node*, std::__1::deque<DB::ExecutingGraph::Node*, std::__1::allocator<DB::ExecutingGraph::Node*> > >&, std::__1::queue<DB::ExecutingGraph::Node*, std::__1::deque<DB::ExecutingGraph::Node*, std::__1::allocator<DB::ExecutingGraph::Node*> > >&, std::__1::unique_lock<std::__1::mutex>) @ 0xf63b879 in /usr/bin/clickhouse
[ch-01] 2021.02.24 20:31:13.846180 [ 17553 ] <Fatal> BaseDaemon: 9. DB::PipelineExecutor::tryAddProcessorToStackIfUpdated(DB::ExecutingGraph::Edge&, std::__1::queue<DB::ExecutingGraph::Node*, std::__1::deque<DB::ExecutingGraph::Node*, std::__1::allocator<DB::ExecutingGraph::Node*> > >&, std::__1::queue<DB::ExecutingGraph::Node*, std::__1::deque<DB::ExecutingGraph::Node*, std::__1::allocator<DB::ExecutingGraph::Node*> > >&, unsigned long) @ 0xf63b14c in /usr/bin/clickhouse
[ch-01] 2021.02.24 20:31:13.846241 [ 17553 ] <Fatal> BaseDaemon: 10. DB::PipelineExecutor::prepareProcessor(unsigned long, unsigned long, std::__1::queue<DB::ExecutingGraph::Node*, std::__1::deque<DB::ExecutingGraph::Node*, std::__1::allocator<DB::ExecutingGraph::Node*> > >&, std::__1::queue<DB::ExecutingGraph::Node*, std::__1::deque<DB::ExecutingGraph::Node*, std::__1::allocator<DB::ExecutingGraph::Node*> > >&, std::__1::unique_lock<std::__1::mutex>) @ 0xf63b879 in /usr/bin/clickhouse
[ch-01] 2021.02.24 20:31:13.846308 [ 17553 ] <Fatal> BaseDaemon: 11. DB::PipelineExecutor::tryAddProcessorToStackIfUpdated(DB::ExecutingGraph::Edge&, std::__1::queue<DB::ExecutingGraph::Node*, std::__1::deque<DB::ExecutingGraph::Node*, std::__1::allocator<DB::ExecutingGraph::Node*> > >&, std::__1::queue<DB::ExecutingGraph::Node*, std::__1::deque<DB::ExecutingGraph::Node*, std::__1::allocator<DB::ExecutingGraph::Node*> > >&, unsigned long) @ 0xf63b14c in /usr/bin/clickhouse
[ch-01] 2021.02.24 20:31:13.846369 [ 17553 ] <Fatal> BaseDaemon: 12. DB::PipelineExecutor::prepareProcessor(unsigned long, unsigned long, std::__1::queue<DB::ExecutingGraph::Node*, std::__1::deque<DB::ExecutingGraph::Node*, std::__1::allocator<DB::ExecutingGraph::Node*> > >&, std::__1::queue<DB::ExecutingGraph::Node*, std::__1::deque<DB::ExecutingGraph::Node*, std::__1::allocator<DB::ExecutingGraph::Node*> > >&, std::__1::unique_lock<std::__1::mutex>) @ 0xf63b839 in /usr/bin/clickhouse
[ch-01] 2021.02.24 20:31:13.846439 [ 17553 ] <Fatal> BaseDaemon: 13. DB::PipelineExecutor::executeStepImpl(unsigned long, unsigned long, std::__1::atomic<bool>*) @ 0xf63ed80 in /usr/bin/clickhouse
[ch-01] 2021.02.24 20:31:13.846485 [ 17553 ] <Fatal> BaseDaemon: 14. ? @ 0xf6432b6 in /usr/bin/clickhouse
[ch-01] 2021.02.24 20:31:13.846562 [ 17553 ] <Fatal> BaseDaemon: 15. ThreadPoolImpl<std::__1::thread>::worker(std::__1::__list_iterator<std::__1::thread, void*>) @ 0x84f6e4f in /usr/bin/clickhouse
[ch-01] 2021.02.24 20:31:13.846622 [ 17553 ] <Fatal> BaseDaemon: 16. ? @ 0x84fa8e3 in /usr/bin/clickhouse
[ch-01] 2021.02.24 20:31:13.846708 [ 17553 ] <Fatal> BaseDaemon: 17. start_thread @ 0x7ea5 in /usr/lib64/libpthread-2.17.so
[ch-01] 2021.02.24 20:31:13.846796 [ 17553 ] <Fatal> BaseDaemon: 18. __clone @ 0xfe8dd in /usr/lib64/libc-2.17.so
[ch-01] 2021.02.24 20:31:14.053143 [ 17553 ] <Fatal> BaseDaemon: Checksum of the binary: 88E22F0584BA91872F2E9BE493E6985B, integrity check passed.
```

_Originally posted by @chyy in https://github.com/ClickHouse/ClickHouse/issues/8997#issuecomment-785538830_
M(UInt64, log_queries_cut_to_length, 100000, "If query length is greater than specified threshold (in bytes), then cut query when writing to query log. Also limit length of printed query in ordinary text log.", 0) \
    \
    M(DistributedProductMode, distributed_product_mode, DistributedProductMode::DENY, "How are distributed subqueries performed inside IN or JOIN sections?", IMPORTANT) \
    \
    M(UInt64, max_concurrent_queries_for_all_users, 0, "The maximum number of concurrent requests for all users.", 0) \
    M(UInt64, max_concurrent_queries_for_user, 0, "The maximum number of concurrent requests per user.", 0) \
    \
    M(Bool, insert_deduplicate, true, "For INSERT queries in the replicated table, specifies that deduplication of insertings blocks should be performed", 0) \
    \
    M(UInt64, insert_quorum, 0, "For INSERT queries in the replicated table, wait writing for the specified number of replicas and linearize the addition of the data. 0 - disabled.", 0) \
    M(Milliseconds, insert_quorum_timeout, 600000, "", 0) \
    M(Bool, insert_quorum_parallel, true, "For quorum INSERT queries - enable to make parallel inserts without linearizability", 0) \
    M(UInt64, select_sequential_consistency, 0, "For SELECT queries from the replicated table, throw an exception if the replica does not have a chunk written with the quorum; do not read the parts that have not yet been written with the quorum.", 0) \
    M(UInt64, table_function_remote_max_addresses, 1000, "The maximum number of different shards and the maximum number of replicas of one shard in the `remote` function.", 0) \
    M(Milliseconds, read_backoff_min_latency_ms, 1000, "Setting to reduce the number of threads in case of slow reads. Pay attention only to reads that took at least that much time.", 0) \
    M(UInt64, read_backoff_max_throughput, 1048576, "Settings to reduce the number of threads in case of slow reads. Count events when the read bandwidth is less than that many bytes per second.", 0) \
    M(Milliseconds, read_backoff_min_interval_between_events_ms, 1000, "Settings to reduce the number of threads in case of slow reads. Do not pay attention to the event, if the previous one has passed less than a certain amount of time.", 0) \
    M(UInt64, read_backoff_min_events, 2, "Settings to reduce the number of threads in case of slow reads. The number of events after which the number of threads will be reduced.", 0) \
    \
    M(UInt64, read_backoff_min_concurrency, 1, "Settings to try keeping the minimal number of threads in case of slow reads.", 0) \
    \
    M(Float, memory_tracker_fault_probability, 0., "For testing of `exception safety` - throw an exception every time you allocate memory with the specified probability.", 0) \
    \
    M(Bool, enable_http_compression, 0, "Compress the result if the client over HTTP said that it understands data compressed by gzip or deflate.", 0) \
    M(Int64, http_zlib_compression_level, 3, "Compression level - used if the client on HTTP said that it understands data compressed by gzip or deflate.", 0) \
    \
    M(Bool, http_native_compression_disable_checksumming_on_decompress, 0, "If you uncompress the POST data from the client compressed by the native format, do not check the checksum.", 0) \
    \
    M(String, count_distinct_implementation, "uniqExact", "What aggregate function to use for implementation of count(DISTINCT ...)", 0) \
    \