[MonoDevelop] Hang on startup

[Oskar Berggren]

This is with mono 2.4.2.3 and MD 2.2. beta 1.

Usually it starts properly, but on some occasions it freezes while
still displaying the splash-screen. strace shows it standing in some
call to futex(), while kill -QUIT gives the backtrace below. Three
threads seem to be doing something related to assemblies, while the
fourth is sleeping. Is this some mono deadlock issue?

/Oskar


Full thread dump:

"<unnamed thread>" tid=0x0x7f64deb11730 this=0x0x7f64de9c6e58 thread
handle 0x404 state : not waiting owns ()
  at (wrapper managed-to-native)
System.Reflection.Assembly.InternalGetType
(System.Reflection.Module,string,bool,bool) <0x00051>
  at (wrapper managed-to-native)
System.Reflection.Assembly.InternalGetType
(System.Reflection.Module,string,bool,bool) <0xffffffff>
  at System.Reflection.Assembly.GetType (string,bool,bool) [0x0000d]
in /home/oskar/mono24/mono-2.4.2.3/mono-2.4.2.3/mcs/class/corlib/System.Reflection/Assembly.cs:373
  at System.Reflection.Assembly.GetType (string,bool) [0x00000] in
/home/oskar/mono24/mono-2.4.2.3/mono-2.4.2.3/mcs/class/corlib/System.Reflection/Assembly.cs:358
  at Mono.Addins.RuntimeAddin.GetType (string,bool) [0x00022] in
/home/oskar/mono24/mono-2.4.2.3/mono-addins-0.4/Mono.Addins/Mono.Addins/RuntimeAddin.cs:164
  at Mono.Addins.TypeExtensionNode.get_Type () [0x00026] in
/home/oskar/mono24/mono-2.4.2.3/mono-addins-0.4/Mono.Addins/Mono.Addins/TypeExtensionNode.cs:62
  at Mono.Addins.TypeExtensionNode.CreateInstance () [0x00000] in
/home/oskar/mono24/mono-2.4.2.3/mono-addins-0.4/Mono.Addins/Mono.Addins/TypeExtensionNode.cs:54
  at Mono.Addins.InstanceExtensionNode.GetInstance () [0x0000b] in
/home/oskar/mono24/mono-2.4.2.3/mono-addins-0.4/Mono.Addins/Mono.Addins/InstanceExtensionNode.cs:49
  at Mono.Addins.InstanceExtensionNode.GetInstance (System.Type)
[0x00000] in /home/oskar/mono24/mono-2.4.2.3/mono-addins-0.4/Mono.Addins/Mono.Addins/InstanceExtensionNode.cs:40
  at Mono.Addins.ExtensionNode.GetChildObjects (System.Type,bool)
[0x00058] in /home/oskar/mono24/mono-2.4.2.3/mono-addins-0.4/Mono.Addins/Mono.Addins/ExtensionNode.cs:190
  at Mono.Addins.ExtensionContext.GetExtensionObjects
(string,System.Type,bool) [0x0001f] in
/home/oskar/mono24/mono-2.4.2.3/mono-addins-0.4/Mono.Addins/Mono.Addins/ExtensionContext.cs:279
  at Mono.Addins.ExtensionContext.GetExtensionObjects (string)
[0x00000] in /home/oskar/mono24/mono-2.4.2.3/mono-addins-0.4/Mono.Addins/Mono.Addins/ExtensionContext.cs:261
  at Mono.Addins.AddinManager.GetExtensionObjects (string) [0x00005]
in /home/oskar/mono24/mono-2.4.2.3/mono-addins-0.4/Mono.Addins/Mono.Addins/AddinManager.cs:236
  at MonoDevelop.Core.Gui.DesktopService.Initialize () [0x0000b] in
/home/oskar/mono24/mono-2.4.2.3/monodevelop-2.1.0/src/core/MonoDevelop.Core.Gui/MonoDevelop.Core.Gui/DesktopService.cs:41
  at MonoDevelop.Ide.Gui.IdeStartup.Run (string[]) [0x00135] in
/home/oskar/mono24/mono-2.4.2.3/monodevelop-2.1.0/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Gui/IdeStartup.cs:118
  at MonoDevelop.Startup.MonoDevelopMain.Main (string[]) [0x00017] in
/home/oskar/mono24/mono-2.4.2.3/monodevelop-2.1.0/src/core/MonoDevelop.Startup/MonoDevelop.Startup/MonoDevelopMain.cs:24
  at (wrapper runtime-invoke)
MonoDevelop.Startup.MonoDevelopMain.runtime_invoke_int_object
(object,intptr,intptr,intptr) <0xffffffff>

"<unnamed thread>" tid=0x0x7f64d48ee950 this=0x0x7f64de9c6b28 thread
handle 0x40b state : interrupted state owns ()
  at (wrapper managed-to-native)
System.Threading.Thread.Sleep_internal (int) <0x00045>
  at (wrapper managed-to-native)
System.Threading.Thread.Sleep_internal (int) <0xffffffff>
  at System.Threading.Thread.Sleep (int) [0x00019] in
/home/oskar/mono24/mono-2.4.2.3/mono-2.4.2.3/mcs/class/corlib/System.Threading/Thread.cs:303
  at MonoDevelop.Core.Gui.DispatchService.backgroundDispatcher ()
[0x0000f] in /home/oskar/mono24/mono-2.4.2.3/monodevelop-2.1.0/src/core/MonoDevelop.Core.Gui/MonoDevelop.Core.Gui/DispatchService.cs:227
  at (wrapper runtime-invoke) object.runtime_invoke_void__this__
(object,intptr,intptr,intptr) <0xffffffff>

"<unnamed thread>" tid=0x0x7f64cf9c7950 this=0x0x7f64d52845e0 thread
handle 0x461 state : interrupted state owns ()
  at MonoDevelop.Core.Assemblies.TargetRuntime.RegisterSystemAssemblies
(MonoDevelop.Core.Assemblies.TargetFramework) [0x001ca] in
/home/oskar/mono24/mono-2.4.2.3/monodevelop-2.1.0/src/core/MonoDevelop.Core/MonoDevelop.Core.Assemblies/TargetRuntime.cs:372
  at MonoDevelop.Core.Assemblies.TargetRuntime.RegisterSystemAssemblies
(MonoDevelop.Core.Assemblies.TargetFramework) [0x0013a] in
/home/oskar/mono24/mono-2.4.2.3/monodevelop-2.1.0/src/core/MonoDevelop.Core/MonoDevelop.Core.Assemblies/TargetRuntime.cs:363
  at MonoDevelop.Core.Assemblies.TargetRuntime.CreateFrameworks ()
[0x00145] in /home/oskar/mono24/mono-2.4.2.3/monodevelop-2.1.0/src/core/MonoDevelop.Core/MonoDevelop.Core.Assemblies/TargetRuntime.cs:318
  at MonoDevelop.Core.Assemblies.TargetRuntime.RunInitialization ()
[0x00000] in /home/oskar/mono24/mono-2.4.2.3/monodevelop-2.1.0/src/core/MonoDevelop.Core/MonoDevelop.Core.Assemblies/TargetRuntime.cs:254
  at MonoDevelop.Core.Assemblies.TargetRuntime.BackgroundInitialize ()
[0x0001c] in /home/oskar/mono24/mono-2.4.2.3/monodevelop-2.1.0/src/core/MonoDevelop.Core/MonoDevelop.Core.Assemblies/TargetRuntime.cs:237
  at (wrapper runtime-invoke) object.runtime_invoke_void__this__
(object,intptr,intptr,intptr) <0xffffffff>

"<unnamed thread>" tid=0x0x7f64cffff950 this=0x0x7f64d5284a48 thread
handle 0x45a state : interrupted state owns ()
  at MonoDevelop.Core.Assemblies.TargetRuntime.RegisterSystemAssemblies
(MonoDevelop.Core.Assemblies.TargetFramework) [0x001ca] in
/home/oskar/mono24/mono-2.4.2.3/monodevelop-2.1.0/src/core/MonoDevelop.Core/MonoDevelop.Core.Assemblies/TargetRuntime.cs:372
  at MonoDevelop.Core.Assemblies.TargetRuntime.RegisterSystemAssemblies
(MonoDevelop.Core.Assemblies.TargetFramework) [0x0013a] in
/home/oskar/mono24/mono-2.4.2.3/monodevelop-2.1.0/src/core/MonoDevelop.Core/MonoDevelop.Core.Assemblies/TargetRuntime.cs:363
  at MonoDevelop.Core.Assemblies.TargetRuntime.CreateFrameworks ()
[0x00145] in /home/oskar/mono24/mono-2.4.2.3/monodevelop-2.1.0/src/core/MonoDevelop.Core/MonoDevelop.Core.Assemblies/TargetRuntime.cs:318
  at MonoDevelop.Core.Assemblies.TargetRuntime.RunInitialization ()
[0x00000] in /home/oskar/mono24/mono-2.4.2.3/monodevelop-2.1.0/src/core/MonoDevelop.Core/MonoDevelop.Core.Assemblies/TargetRuntime.cs:254
  at MonoDevelop.Core.Assemblies.TargetRuntime.BackgroundInitialize ()
[0x0001c] in /home/oskar/mono24/mono-2.4.2.3/monodevelop-2.1.0/src/core/MonoDevelop.Core/MonoDevelop.Core.Assemblies/TargetRuntime.cs:237
  at (wrapper runtime-invoke) object.runtime_invoke_void__this__
(object,intptr,intptr,intptr) <0xffffffff>