Node panicking #7794

Gauthamastro · 2020-12-27T04:20:14Z

Steps to reproduce

Clone Substrate Master
cargo build
./target/debug/substrate

Logs


2020-12-27 09:43:44  Substrate Node
2020-12-27 09:43:44  ✌️  version 2.0.0-281f81c97-x86_64-linux-gnu
2020-12-27 09:43:44  ❤️  by Parity Technologies <admin@parity.io>, 2017-2020
2020-12-27 09:43:44  📋 Chain specification: Flaming Fir
2020-12-27 09:43:44  🏷 Node name: dark-bun-7831
2020-12-27 09:43:44  👤 Role: FULL
2020-12-27 09:43:44  💾 Database: RocksDb at /home/gj/.local/share/substrate/chains/flamingfir9/db
2020-12-27 09:43:44  ⛓  Native runtime: node-261 (substrate-node-0.tx2.au10)
2020-12-27 09:43:45  🔨 Initializing Genesis block/state (state: 0x89b8…d3e7, header-hash: 0xe40f…ed39)
2020-12-27 09:43:45  👴 Loading GRANDPA authority set from genesis on what appears to be first startup.
2020-12-27 09:43:46  ⏱  Loaded block-time = 3000 milliseconds from genesis on first-launch
2020-12-27 09:43:46  👶 Creating empty BABE epoch changes on what appears to be first startup.
2020-12-27 09:43:46  🏷 Local node identity is: 12D3KooWPHEVTvAnFVaTM55fPdgzCKqU7JRxAQzVbJWQMu7RZ6pV
2020-12-27 09:43:46  📦 Highest known block at #0
2020-12-27 09:43:46  〽️ Prometheus server started at 127.0.0.1:9615
2020-12-27 09:43:46  Listening for new connections on 127.0.0.1:9944.

====================

Version: 2.0.0-281f81c97-x86_64-linux-gnu

   0: sp_panic_handler::panic_hook
             at primitives/panic-handler/src/lib.rs:150:18
   1: sp_panic_handler::set::{{closure}}
             at primitives/panic-handler/src/lib.rs:60:4
   2: std::panicking::rust_panic_with_hook
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:573:17
   3: std::panicking::begin_panic_handler::{{closure}}
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:476:9
   4: std::sys_common::backtrace::__rust_end_short_backtrace
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:153:18
   5: rust_begin_unwind
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:475:5
   6: core::panicking::panic_fmt
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/panicking.rs:85:14
   7: core::option::expect_none_failed
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/option.rs:1221:5
   8: core::result::Result<T,E>::unwrap
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/result.rs:973:23
   9: if_watch::unix::linux::NetlinkSocket::send_getaddr::{{closure}}::{{closure}}
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/if-watch-0.1.7/src/unix/linux.rs:99:17
  10: async_io::Async<T>::write_with::{{closure}}
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/async-io-1.3.1/src/lib.rs:872:19
  11: <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/future/mod.rs:79:19
  12: if_watch::unix::linux::NetlinkSocket::send_getaddr::{{closure}}
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/if-watch-0.1.7/src/unix/linux.rs:95:9
  13: <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/future/mod.rs:79:19
  14: if_watch::unix::IfWatcher::new::{{closure}}
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/if-watch-0.1.7/src/unix.rs:74:9
  15: <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/future/mod.rs:79:19
  16: if_watch::IfWatcher::new::{{closure}}
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/if-watch-0.1.7/src/lib.rs:41:17
  17: <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/future/mod.rs:79:19
  18: libp2p_mdns::service::MdnsService::new_inner::{{closure}}
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/libp2p-mdns-0.26.0/src/service.rs:169:24
  19: <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/future/mod.rs:79:19
  20: libp2p_mdns::service::MdnsService::new::{{closure}}
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/libp2p-mdns-0.26.0/src/service.rs:139:9
  21: <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/future/mod.rs:79:19
  22: libp2p_mdns::behaviour::Mdns::new::{{closure}}
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/libp2p-mdns-0.26.0/src/behaviour.rs:95:44
  23: <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/future/mod.rs:79:19
  24: sc_network::discovery::MdnsWrapper::poll
             at client/network/src/discovery.rs:807:36
  25: <sc_network::discovery::DiscoveryBehaviour as libp2p_swarm::behaviour::NetworkBehaviour>::poll
             at client/network/src/discovery.rs:739:31
  26: <sc_network::behaviour::Behaviour<B,H> as libp2p_swarm::behaviour::NetworkBehaviour>::poll
             at client/network/src/behaviour.rs:47:10
  27: libp2p_swarm::ExpandedSwarm<TBehaviour,TInEvent,TOutEvent,THandler>::poll_next_event
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/libp2p-swarm-0.25.0/src/lib.rs:679:17
  28: libp2p_swarm::ExpandedSwarm<TBehaviour,TInEvent,TOutEvent,THandler>::next_event::{{closure}}::{{closure}}
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/libp2p-swarm-0.25.0/src/lib.rs:470:35
  29: <futures_util::future::poll_fn::PollFn<F> as core::future::future::Future>::poll
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/futures-util-0.3.8/src/future/poll_fn.rs:54:9
  30: libp2p_swarm::ExpandedSwarm<TBehaviour,TInEvent,TOutEvent,THandler>::next_event::{{closure}}
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/libp2p-swarm-0.25.0/src/lib.rs:470:9
  31: <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/future/mod.rs:79:19
  32: <core::pin::Pin<P> as core::future::future::Future>::poll
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/future/future.rs:121:9
  33: futures_util::future::future::FutureExt::poll_unpin
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/futures-util-0.3.8/src/future/future/mod.rs:561:9
  34: <sc_network::service::NetworkWorker<B,H> as core::future::future::Future>::poll
             at client/network/src/service.rs:1357:21
  35: <&mut F as core::future::future::Future>::poll
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/future/future.rs:109:9
  36: <futures_util::future::future::fuse::Fuse<Fut> as core::future::future::Future>::poll
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/futures-util-0.3.8/src/future/future/fuse.rs:81:37
  37: <core::pin::Pin<P> as core::future::future::Future>::poll
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/future/future.rs:121:9
  38: futures_util::future::future::FutureExt::poll_unpin
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/futures-util-0.3.8/src/future/future/mod.rs:561:9
  39: sc_service::build_network_future::{{closure}}::{{closure}}::{{closure}}
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/futures-util-0.3.8/src/async_await/select_mod.rs:326:13
  40: core::ops::function::impls::<impl core::ops::function::FnMut<A> for &mut F>::call_mut
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/ops/function.rs:269:13
  41: sc_service::build_network_future::{{closure}}::{{closure}}
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/futures-util-0.3.8/src/async_await/select_mod.rs:326:13
  42: <futures_util::future::poll_fn::PollFn<F> as core::future::future::Future>::poll
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/futures-util-0.3.8/src/future/poll_fn.rs:54:9
  43: sc_service::build_network_future::{{closure}}
             at client/service/src/lib.rs:239:3
  44: <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/future/mod.rs:79:19
  45: sc_service::builder::build_network::{{closure}}
             at client/service/src/builder.rs:980:3
  46: <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/future/mod.rs:79:19
  47: <sc_service::task_manager::prometheus_future::PrometheusFuture<T> as core::future::future::Future>::poll
             at client/service/src/task_manager/prometheus_future.rs:56:3
  48: <std::panic::AssertUnwindSafe<F> as core::future::future::Future>::poll
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:325:9
  49: <futures_util::future::future::catch_unwind::CatchUnwind<Fut> as core::future::future::Future>::poll::{{closure}}
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/futures-util-0.3.8/src/future/future/catch_unwind.rs:28:42
  50: <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:308:9
  51: std::panicking::try::do_call
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:373:40
  52: __rust_try
  53: std::panicking::try
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:337:19
  54: std::panic::catch_unwind
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:379:14
  55: <futures_util::future::future::catch_unwind::CatchUnwind<Fut> as core::future::future::Future>::poll
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/futures-util-0.3.8/src/future/future/catch_unwind.rs:28:9
  56: <core::pin::Pin<P> as core::future::future::Future>::poll
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/future/future.rs:121:9
  57: futures_util::future::future::FutureExt::poll_unpin
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/futures-util-0.3.8/src/future/future/mod.rs:561:9
  58: <futures_util::future::select::Select<A,B> as core::future::future::Future>::poll
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/futures-util-0.3.8/src/future/select.rs:92:36
  59: sc_service::task_manager::SpawnTaskHandle::spawn_inner::{{closure}}
             at client/service/src/task_manager/mod.rs:100:11
  60: <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/future/mod.rs:79:19
  61: <tracing_futures::Instrumented<T> as core::future::future::Future>::poll
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/tracing-futures-0.2.4/src/lib.rs:258:9
  62: <core::pin::Pin<P> as core::future::future::Future>::poll
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/future/future.rs:121:9
  63: futures_executor::local_pool::block_on::{{closure}}
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/futures-executor-0.3.8/src/local_pool.rs:317:23
  64: futures_executor::local_pool::run_executor::{{closure}}
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/futures-executor-0.3.8/src/local_pool.rs:87:37
  65: std::thread::local::LocalKey<T>::try_with
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/thread/local.rs:265:16
  66: std::thread::local::LocalKey<T>::with
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/thread/local.rs:241:9
  67: futures_executor::local_pool::run_executor
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/futures-executor-0.3.8/src/local_pool.rs:83:5
  68: futures_executor::local_pool::block_on
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/futures-executor-0.3.8/src/local_pool.rs:317:5
  69: sc_cli::runner::Runner<C>::new::{{closure}}::{{closure}}
             at client/cli/src/runner.rs:128:44
  70: <tokio::runtime::blocking::task::BlockingTask<T> as core::future::future::Future>::poll
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-0.2.23/src/runtime/blocking/task.rs:41:21
  71: tokio::runtime::task::core::Core<T,S>::poll::{{closure}}
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-0.2.23/src/runtime/task/core.rs:173:17
  72: tokio::loom::std::unsafe_cell::UnsafeCell<T>::with_mut
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-0.2.23/src/loom/std/unsafe_cell.rs:14:9
  73: tokio::runtime::task::core::Core<T,S>::poll
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-0.2.23/src/runtime/task/core.rs:158:13
  74: tokio::runtime::task::harness::Harness<T,S>::poll::{{closure}}
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-0.2.23/src/runtime/task/harness.rs:107:27
  75: core::ops::function::FnOnce::call_once
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/ops/function.rs:227:5
  76: <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:308:9
  77: std::panicking::try::do_call
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:373:40
  78: __rust_try
  79: std::panicking::try
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:337:19
  80: std::panic::catch_unwind
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:379:14
  81: tokio::runtime::task::harness::Harness<T,S>::poll
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-0.2.23/src/runtime/task/harness.rs:89:19
  82: tokio::runtime::task::raw::poll
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-0.2.23/src/runtime/task/raw.rs:104:5
  83: tokio::runtime::task::raw::RawTask::poll
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-0.2.23/src/runtime/task/raw.rs:66:18
  84: tokio::runtime::task::Notified<S>::run
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-0.2.23/src/runtime/task/mod.rs:169:9
  85: tokio::runtime::blocking::pool::Inner::run
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-0.2.23/src/runtime/blocking/pool.rs:250:17
  86: tokio::runtime::blocking::pool::Spawner::spawn_thread::{{closure}}::{{closure}}
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-0.2.23/src/runtime/blocking/pool.rs:230:21
  87: tokio::runtime::context::enter
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-0.2.23/src/runtime/context.rs:72:5
  88: tokio::runtime::handle::Handle::enter
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-0.2.23/src/runtime/handle.rs:76:9
  89: tokio::runtime::blocking::pool::Spawner::spawn_thread::{{closure}}
             at /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-0.2.23/src/runtime/blocking/pool.rs:229:17
  90: std::sys_common::backtrace::__rust_begin_short_backtrace
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:137:18
  91: std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/thread/mod.rs:458:17
  92: <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:308:9
  93: std::panicking::try::do_call
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:373:40
  94: __rust_try
  95: std::panicking::try
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:337:19
  96: std::panic::catch_unwind
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:379:14
  97: std::thread::Builder::spawn_unchecked::{{closure}}
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/thread/mod.rs:457:30
  98: core::ops::function::FnOnce::call_once{{vtable.shim}}
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/ops/function.rs:227:5
  99: <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/alloc/src/boxed.rs:1042:9
      <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/alloc/src/boxed.rs:1042:9
      std::sys::unix::thread::Thread::new::thread_start
             at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys/unix/thread.rs:87:17
 100: start_thread
 101: clone


Thread 'tokio-runtime-worker' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 22, kind: InvalidInput, message: "Invalid argument" }', /home/gj/.cargo/registry/src/github.com-1ecc6299db9ec823/if-watch-0.1.7/src/unix/linux.rs:107

The text was updated successfully, but these errors were encountered:

bkchr · 2020-12-27T12:36:08Z

CC @tomaka @mxinden @romanb

mxinden · 2020-12-27T15:46:51Z

@Gauthamastro thanks for reporting the issue.

The panic is happening in a new dependency of rust-libp2p (if-watch) introduced with libp2p/rust-libp2p#1830, more particular the panic happens here.

To help debug the issue, would you mind posting the output of ip link show from your machine here? Feel free to elide any private information.

rphmeier · 2020-12-27T15:53:17Z

@mxinden There's a lot of unwrap in that code, which should have never made it to production. I think we should remove that crate as a dependency until it gains proper error handling. Our general rule with panickers is "prove or remove" - prove it won't happen and write a string with expect, or don't write a panicker in the first place.

Gauthamastro · 2020-12-27T15:59:52Z

@mxinden Here you go!

17: eth0: <> mtu 1500 group default qlen 1
    link/ether ############
16: eth1: <> mtu 1500 group default qlen 1
    link/ether ############
11: eth2: <> mtu 1500 group default qlen 1
    link/ether ############
7: eth3: <> mtu 1500 group default qlen 1
    link/ether ############
1: lo: <LOOPBACK,UP> mtu 1500 group default qlen 1
    link/loopback 00:00:00:00:00:00
12: eth4: <> mtu 1500 group default qlen 1
    link/ether ############
5: wifi0: <BROADCAST,MULTICAST,UP> mtu 1500 group default qlen 1
    link/ieee802.11 ############
13: wifi1: <> mtu 1500 group default qlen 1
    link/ieee802.11 ############
8: wifi2: <> mtu 1500 group default qlen 1
    link/ieee802.11 ############

tomaka · 2020-12-27T16:46:07Z

I think we should remove that crate as a dependency until it gains proper error handling. Our general rule with panickers is "prove or remove" - prove it won't happen and write a string with expect, or don't write a panicker in the first place.

There are three unwrap() in the entire if-watch repository, and I believe that they can be straight-up replaced with ?

Gauthamastro · 2021-01-03T06:57:29Z

Is there any update on this?

mxinden · 2021-01-03T07:14:22Z

@Gauthamastro none that I am aware of. I am back from holiday tomorrow. I will have a look at it then.

Gauthamastro · 2021-01-03T07:15:44Z

@mxinden thanks!

mxinden · 2021-01-03T07:16:42Z

@Gauthamastro in the meantime you should be able to prevent the panic above by running your node with --no-mdns.

Gauthamastro · 2021-01-03T07:18:43Z

@Gauthamastro in the meantime you should be able to prevent the panic above by running your node with --no-mdns.

Thanks for that!! My projects are depending on Substrate main.

dvc94ch · 2021-01-03T18:00:06Z

Sorry about the unwraps, they seem to be a leftover of a debugging session

dvc94ch · 2021-01-03T18:46:15Z

However it would be useful to fix the actual problem, not the error handling strategy.

@Gauthamastro what kernel are you using? Can you post the output of uname -a? It would also be useful to know what the args are that are causing the issue. Can you use strace or println to determine the args that are causing the panics?

Gauthamastro · 2021-01-04T03:57:34Z

@dvc94ch Sure, I will post the logs here later today. I am using the Linux subsystem for windows
Here is the output of uname -a
Linux MSI 4.4.0-19041-Microsoft #488-Microsoft Mon Sep 01 13:43:00 PST 2020 x86_64 x86_64 x86_64 GNU/Linux

bkchr · 2021-02-14T22:46:14Z

Could we please enforce the if-watch release 0.1.8 in libp2p?

bkchr · 2021-02-14T22:49:52Z

Created a polkadot pr to update it for now manually: paritytech/polkadot#2436

mxinden · 2021-02-15T14:54:09Z

Could we please enforce the if-watch release 0.1.8 in libp2p?

👍 see libp2p/rust-libp2p#1956.

bkchr · 2021-02-15T15:12:41Z

Ty

github-actions bot added the J2-unconfirmed Issue might be valid, but it’s not yet known. label Dec 27, 2020

romanb mentioned this issue Jan 3, 2021

[linux] Possible panic due to invalid argument given to sendto. mxinden/if-watch#5

Closed

Gauthamastro mentioned this issue Jan 4, 2021

Future: Null error in local_testnet mode but not in single-node --dev mode paritytech/subport#52

Closed

romanb mentioned this issue Jan 12, 2021

Remove unnecessary unwrapping. mxinden/if-watch#6

Merged

bkchr mentioned this issue Jan 16, 2021

Tokio-runtime-worker - panicked in Version 0.8.27 paritytech/polkadot#2278

Closed

bkchr mentioned this issue Jan 24, 2021

tokio-runtime-worker panic paritytech/polkadot#2314

Closed

bkchr mentioned this issue Jan 31, 2021

Impossible to launch node paritytech/polkadot#2355

Closed

bkchr mentioned this issue Feb 14, 2021

Tokio runtime worker panicked error paritytech/polkadot#2435

Closed

mxinden mentioned this issue Feb 15, 2021

*: Require at least if-watch v0.1.8 libp2p/rust-libp2p#1956

Merged

bkchr closed this as completed Feb 15, 2021

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Node panicking #7794

Node panicking #7794

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Node panicking #7794

Node panicking #7794

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