Bug 2246 - Exception when SDB calls ToString on an object
Summary: Exception when SDB calls ToString on an object
Status: RESOLVED FIXED
Alias: None
Product: Runtime
Classification: Mono
Component: Debugger ()
Version: unspecified
Hardware: PC Mac OS
: Normal normal
Target Milestone: ---
Assignee: Bugzilla
URL:
Depends on:
Blocks:
 
Reported: 2011-11-29 07:46 UTC by Alan McGovern
Modified: 2015-02-20 12:29 UTC (History)
3 users (show)

Tags:
Is this bug a regression?: ---
Last known good build:

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Status:
RESOLVED FIXED
Description Alan McGovern 2011-11-29 07:46:51 UTC 
ERROR [2011-11-25 14:18:39Z]: Error in soft debugger method call thread on method String System.Exception:ToString () on object System.NullReferenceException
Mono.Debugger.Soft.ObjectCollectedException: The requested operation cannot be completed because the object has been garbage collected.
  at Mono.Debugger.Soft.VirtualMachine.ErrorHandler (System.Object sender, Mono.Debugger.Soft.ErrorHandlerEventArgs args) [0x00041] in /private/tmp/source/monodevelop/main/contrib/Mono.Debugger.Soft/Mono.Debugger.Soft/VirtualMachine.cs:278 
  at Mono.Debugger.Soft.Connection.SendReceive (CommandSet command_set, Int32 command, Mono.Debugger.Soft.PacketWriter packet) [0x000d5] in /private/tmp/source/monodevelop/main/contrib/Mono.Debugger.Soft/Mono.Debugger.Soft/Connection.cs:1376 
  at Mono.Debugger.Soft.Connection.Object_GetDomain (Int64 id) [0x00000] in /private/tmp/source/monodevelop/main/contrib/Mono.Debugger.Soft/Mono.Debugger.Soft/Connection.cs:2066 
  at Mono.Debugger.Soft.VirtualMachine.GetObject[StringMirror] (Int64 id, Int64 domain_id, Int64 type_id) [0x0008d] in /private/tmp/source/monodevelop/main/contrib/Mono.Debugger.Soft/Mono.Debugger.Soft/VirtualMachine.cs:468 
  at Mono.Debugger.Soft.VirtualMachine.GetObject[StringMirror] (Int64 id) [0x00000] in /private/tmp/source/monodevelop/main/contrib/Mono.Debugger.Soft/Mono.Debugger.Soft/VirtualMachine.cs:491 
  at Mono.Debugger.Soft.VirtualMachine.DecodeValue (Mono.Debugger.Soft.ValueImpl v) [0x0007a] in /private/tmp/source/monodevelop/main/contrib/Mono.Debugger.Soft/Mono.Debugger.Soft/VirtualMachine.cs:533 
  at Mono.Debugger.Soft.ObjectMirror.EndInvokeMethodInternal (IAsyncResult asyncResult) [0x000b0] in /private/tmp/source/monodevelop/main/contrib/Mono.Debugger.Soft/Mono.Debugger.Soft/ObjectMirror.cs:271 
  at Mono.Debugger.Soft.ObjectMirror.EndInvokeMethod (IAsyncResult asyncResult) [0x00000] in /private/tmp/source/monodevelop/main/contrib/Mono.Debugger.Soft/Mono.Debugger.Soft/ObjectMirror.cs:144 
  at Mono.Debugging.Soft.MethodCall.EndInvoke () [0x00010] in /private/tmp/source/monodevelop/main/src/addins/MonoDevelop.Debugger.Soft/Mono.Debugging.Soft/SoftDebuggerAdaptor.cs:1119 
Mono.Debugging.Evaluation.EvaluatorException: The requested operation cannot be completed because the object has been garbage collected.
  at Mono.Debugging.Soft.MethodCall.get_ReturnValue () [0x00029] in /private/tmp/source/monodevelop/main/src/addins/MonoDevelop.Debugger.Soft/Mono.Debugging.Soft/SoftDebuggerAdaptor.cs:1182 
  at Mono.Debugging.Soft.SoftEvaluationContext.RuntimeInvoke (Mono.Debugger.Soft.MethodMirror method, System.Object target, Mono.Debugger.Soft.Value[] values) [0x00119] in /private/tmp/source/monodevelop/main/src/addins/MonoDevelop.Debugger.Soft/Mono.Debugging.Soft/SoftEvaluationContext.cs:133 
  at Mono.Debugging.Soft.SoftDebuggerAdaptor.CallToString (Mono.Debugging.Evaluation.EvaluationContext ctx, System.Object obj) [0x00123] in /private/tmp/source/monodevelop/main/src/addins/MonoDevelop.Debugger.Soft/Mono.Debugging.Soft/SoftDebuggerAdaptor.cs:71 
  at Mono.Debugging.Evaluation.ObjectValueAdaptor.TargetObjectToObject (Mono.Debugging.Evaluation.EvaluationContext ctx, System.Object obj) [0x00349] in /private/tmp/source/monodevelop/main/src/core/Mono.Debugging/Mono.Debugging.Evaluation/ObjectValueAdaptor.cs:811 
  at Mono.Debugging.Soft.SoftDebuggerAdaptor.TargetObjectToObject (Mono.Debugging.Evaluation.EvaluationContext gctx, System.Object obj) [0x000c4] in /private/tmp/source/monodevelop/main/src/addins/MonoDevelop.Debugger.Soft/Mono.Debugging.Soft/SoftDebuggerAdaptor.cs:1047 
  at Mono.Debugging.Evaluation.ExpressionEvaluator.TargetObjectToExpression (Mono.Debugging.Evaluation.EvaluationContext ctx, System.Object obj) [0x00000] in /private/tmp/source/monodevelop/main/src/core/Mono.Debugging/Mono.Debugging.Evaluation/ExpressionEvaluator.cs:80 
  at Mono.Debugging.Evaluation.ObjectValueAdaptor.CreateObjectValueImpl (Mono.Debugging.Evaluation.EvaluationContext ctx, IObjectValueSource source, ObjectPath path, System.Object obj, ObjectValueFlags flags) [0x000fb] in /private/tmp/source/monodevelop/main/src/core/Mono.Debugging/Mono.Debugging.Evaluation/ObjectValueAdaptor.cs:310 
  at Mono.Debugging.Evaluation.ObjectValueAdaptor.CreateObjectValue (Mono.Debugging.Evaluation.EvaluationContext ctx, IObjectValueSource source, ObjectPath path, System.Object obj, ObjectValueFlags flags) [0x00000] in /private/tmp/source/monodevelop/main/src/core/Mono.Debugging/Mono.Debugging.Evaluation/ObjectValueAdaptor.cs:66
Comment 2 Zoltan Varga 2012-12-21 23:37:38 UTC 
Fixed in master/mobile-master.