[Mono-dev] NancyFX self hosting (HttpListener) locking up on linux

[Alfred Hall]

Hi Nikita.

Full thread dump:

"<threadpool thread>" tid=0x0x7fc4ad29d700 this=0x0x7fc4ad584c70 thread handle 0x80f state : not waiting owns ()


"IO Threadpool worker" tid=0x0x7fc4ad25c700 this=0x0x7fc4ad584dd0 thread handle 0x810 state : interrupted state owns ()


"IO Threadpool worker" tid=0x0x7fc4a7567700 this=0x0x7fc4a741d350 thread handle 0x845 state : interrupted state owns ()


"Threadpool worker" tid=0x0x7fc4ac39a700 this=0x0x7fc4a6192270 thread handle 0x837 state : interrupted state owns ()
  at <unknown> <0xffffffff>
  at (wrapper managed-to-native) object.__icall_wrapper_mono_gc_alloc_vector (intptr,intptr,intptr) <0xffffffff>
  at (wrapper alloc) object.AllocVector (intptr,intptr) <0xffffffff>
  at System.Net.HttpConnection.BeginReadRequest () <0x0003a>
  at System.Net.EndPointListener.OnAccept (object,System.EventArgs) <0x00357>
  at System.Net.Sockets.SocketAsyncEventArgs.OnCompleted (System.Net.Sockets.SocketAsyncEventArgs) <0x0002e>
  at System.Net.Sockets.SocketAsyncEventArgs.AcceptCallback (System.IAsyncResult) <0x00336>
  at System.Net.Sockets.SocketAsyncEventArgs.DispatcherCB (System.IAsyncResult) <0x0010f>
  at (wrapper runtime-invoke) <Module>.runtime_invoke_void__this___object (object,intptr,intptr,intptr) <0xffffffff>


I then tried the same again and only got this in my trace:

Full thread dump:

"<threadpool thread>" tid=0x0x7f31b8ac5700 this=0x0x7f31b8da4c70 thread handle 0x80e state : not waiting owns ()


"IO Threadpool worker" tid=0x0x7f31b8a84700 this=0x0x7f31b8da4dd0 thread handle 0x80f state : interrupted state owns ()

Not sure why I'm not getting any dump here. Any more debugging I can do on there?

What seems to happen is its coping well initially with the requests and then in all of a sudden it stops accepting connections and existing connections dont die off.

Cheers,
Alf
-----Original message-----
From: Nikita Tsukanov <keks9n at gmail.com>
Sent: Sunday 4th August 2013 16:13
To: mono-devel-list at lists.ximian.com
Subject: Re: [Mono-dev] NancyFX self hosting (HttpListener) locking up on linux

Alfred, please, try to send SIGQUIT to mono (i. e. kill -SIGQUIT {PID}) when it stops processing requests. It will force mono to write thread stack traces to stdout. Grab them and post here, I suspect that the issue is simular to one experienced by me.


2013/8/4 Nikita Tsukanov <keks9n at gmail.com <mailto:keks9n at gmail.com> >
Alfred, please, try to send SIGQUIT to mono (i. e. kill -SIGQUIT
{PID}) when it stops processing requests. It will force mono to write
thread stack traces to stdout. Grab them and post here, I suspect that
the issue is simular to one experienced by me.


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