Test: Aborted tests happening more often on ubuntu

[davidfowl]

https://ci3.dot.net/job/aspnet_KestrelHttpServer/job/dev/job/linux-Configuration_Release_prtest/22/console

Something is causing the test process to crash hard.

[davidfowl]

Again https://ci3.dot.net/job/aspnet_KestrelHttpServer/job/dev/job/linux-Configuration_Release_prtest/24/

[davidfowl]

https://ci3.dot.net/job/aspnet_KestrelHttpServer/job/dev/job/linux-Configuration_Release_prtest/27/console

[ryanbrandenburg]

Not just on ubuntu, we see it on the CI on WinServer2012 too.

[ryanbrandenburg]

We got a useful error message out of one of these!

[05:14:20]E:		 [VSTest] Runner error: The active test run was aborted. Reason: dotnet: /datadrive/teamcity/6a56927d0d6f3630/submodules/libuv/src/unix/linux-core.c:336: void uv__io_poll(uv_loop_t *, int): Assertion `(unsigned) fd < loop->nwatchers' failed.

As seen here.

[halter73]

@ryanbrandenburg Great find.

[halter73]

I saw this again when running the libuv functional tests in a loop:

xUnit.net Console Runner (64-bit .NET Core 4.6.26508.05)
  Discovering: Libuv.FunctionalTests
  Discovered:  Libuv.FunctionalTests
  Starting:    Libuv.FunctionalTests
    RegisterAddresses_IPv6_Success [SKIP]
      https://github.com/aspnet/KestrelHttpServer/issues/2434
    ConnectionCountingReturnsToZero [SKIP]
      https://github.com/aspnet/KestrelHttpServer/issues/2282
    RegisterAddresses_IPv6Port80_Success [SKIP]
      Cannot bind to port 80 on the host.
    ConnectionClosedEvenIfAppSwallowsException [SKIP]
      https://github.com/aspnet/KestrelHttpServer/issues/2464
    RegisterAddresses_IPv4Port80_Success [SKIP]
      Cannot bind to port 80 on the host.
    RegisterIPEndPoint_Port443_Success [SKIP]
      Cannot bind to port 443 on the host.
    RemoteIPv6Address [SKIP]
      https://github.com/aspnet/KestrelHttpServer/issues/2406
  Finished:    Libuv.FunctionalTests
=== TEST EXECUTION SUMMARY ===
   Libuv.FunctionalTests  Total: 650, Errors: 0, Failed: 0, Skipped: 7, Time: 64.366s
xUnit.net Console Runner (64-bit .NET Core 4.6.26508.05)
  Discovering: Libuv.FunctionalTests
  Discovered:  Libuv.FunctionalTests
  Starting:    Libuv.FunctionalTests
    RegisterAddresses_IPv6_Success [SKIP]
      https://github.com/aspnet/KestrelHttpServer/issues/2434
    ConnectionCountingReturnsToZero [SKIP]
      https://github.com/aspnet/KestrelHttpServer/issues/2282
    RegisterAddresses_IPv6Port80_Success [SKIP]
      Cannot bind to port 80 on the host.
dotnet: /datadrive/teamcity/6a56927d0d6f3630/submodules/libuv/src/unix/linux-core.c:336: void uv__io_poll(uv_loop_t *, int): Assertion `(unsigned) fd < loop->nwatchers' failed.

shalter@f4-linux-server:~/aspnet/KestrelHttpServer/test/Kestrel.Transport.Libuv.FunctionalTests$ git status
On branch halter73/2546
Your branch is up to date with 'origin/halter73/2546'.

[ryanbrandenburg]

We're still seeing this.

[halter73]

@ryanbrandenburg @natemcmaster Do we have "Test Platform Diagnostics" for any of the aborted test runs? If not, can we enable it?

[ryanbrandenburg]

In order to do that we would need to forward the value of VSTestVerboseOutput onto the repo builds here.