PeerConnections fail after [rtc::impl::IceTransport::LogCallback@363] juice: conn_poll.c:311: poll failed, errno=10038

[Sniperlyf3]

Notes:

• I was only able to replicate this issue on Windows. I wasn’t able to reproduce this behavior on WSL (Ubuntu 22.04.4 LTS on Windows 10 x86_64).
• The issue seems to be timing-related. I wasn’t able to replicate this issue with verbose logging and had to close about 100 connections at a time for this to occur.

Replication steps:

• Create 100 PeerConnection objects (connected to some other peers).
• Remove them.
• Repeat the above steps.

Result:

[rtc::impl::IceTransport::LogCallback@363] juice: conn_poll.c:311: poll failed, errno=10038

• Within a few seconds, all the other peers will start failing.
• No more PeerConnection connections will be created; it is stuck in a stable state. The application has to be restarted before any new connections can be made.

Expected behavior:

To not prevent all future PeerConnections from being able to establish a connection.

I don’t know if this is a timing issue from libdatachannel or if this should be addressed in libjuice. Please advise.

[paullouisageneau]

This error was fixed by paullouisageneau/libjuice#198. You must use a very old version of libdatachannel or libjuice.

[Sniperlyf3]

I was indeed on an old version of libdatachannel.
Updated to 0.21.2, still seeing the same behavior.
I did the following:

• Removed all cached files (including all files related to vcpkg)
• Cleaned the project in Microsoft Visual Studio
• Reinstalled vcpkg
• Added version constraint for >= 0.21.2 in the vcpkg.json file

Adding 100 clients, then deleting them again causes above behavior after closing & removing the first 5 clients of the 100 created.
I am also logging the version (RTC_VERSION) on startup.

My vcpkg.json file:

{
  "dependencies": [
    {
      "name": "libdatachannel",
      "version>=": "0.21.2",
      "features": [
        "srtp"
      ]
    }
  ],
  "builtin-baseline": "b4624c3a701b11248d88aab08744a37ee7aea1cc"
}

[Sniperlyf3]

Fixed in paullouisageneau/libjuice#272