[Mono-bugs] [Bug 75960][Nor] New - Stack traces seem incorrect

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Changed by miguel at ximian.com.

http://bugzilla.ximian.com/show_bug.cgi?id=75960

--- shadow/75960	2005-09-02 08:44:03.000000000 -0400
+++ shadow/75960.tmp.10587	2005-09-02 08:44:03.000000000 -0400
@@ -0,0 +1,142 @@
+Bug#: 75960
+Product: Mono: Debugger
+Version: 1.1
+OS: 
+OS Details: 
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Normal
+Component: backend
+AssignedTo: toshok at ximian.com                            
+ReportedBy: miguel at ximian.com               
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: Stack traces seem incorrect
+
+I tried debugging a problem with aspnetedit, when I click on a button in
+aspnetedit, I get the following stack trace on the command line:
+
+free(): invalid pointer 0x8958138!
+
+Unhandled Exception: System.NullReferenceException: Object reference not
+set to an instance of an object
+in <0x00000> <unknown method>
+in (wrapper managed-to-native)
+Gtk.FileChooserDialog:gtk_file_chooser_dialog_new (intptr,intptr,int,intptr)
+in <0x000fa> Gtk.FileChooserDialog:.ctor (System.String title, Gtk.Window
+parent, FileChooserAction action, System.Object[] button_data)in <0x0009d>
+AspNetEdit.SampleHost.SampleHost:toolboxAddButton_Clicked (System.Object
+sender, System.EventArgs e)
+in (wrapper delegate-invoke)
+System.MulticastDelegate:invoke_void_object_EventArgs (object,System.EventArgs)
+in <0x00093> GLib.Signal:voidObjectCallback (IntPtr handle, IntPtr gch)
+in (wrapper native-to-managed) GLib.Signal:voidObjectCallback (intptr,intptr)
+in <0x00000> <unknown method>
+in (wrapper managed-to-native) Gtk.Application:gtk_main ()
+in <0x00007> Gtk.Application:Run ()
+in <0x00c9e> AspNetEdit.SampleHost.SampleHost:Main ()
+
+So about 11 levels deep.  If I run this with mdb, I get:
+
+free(): invalid pointer 0x89affa8!
+Process @4 received signal 11 at #0: 0x40315ded.
+0x40315ded	mov    0x4(%eax),%edx
+(mdb) where
+(*) #0: 0x40315ded
+    #1: 0x4031622b
+    #2: 0x447c20db
+    #3: 0x447c2702
+    #4: 0x447c5389
+    #5: 0x447cb05f
+    #6: 0x43b4e9b7
+    #7: 0x43b57dd9
+    #8: 0x447c90a3
+    #9: 0x447c87be
+    #10: 0x4474bcdc
+    #11: 0x41b2aac1
+    #12: 0x4191710b
+    #13: 0x41917254
+    #14: 0x4191760f
+    #15: 0x419158a8
+    #16: 0x443dab68
+    #17: 0x443db506
+    #18: 0x418f9875
+    #19: 0x418e6bc4
+    #20: 0x418e7271
+    #21: 0x418e77e4
+    #22: 0x418ea66f
+    #23: 0x41d1feac
+    #24: 0x41d20414
+    #25: 0x41d2054a
+    #26: 0x418ee9a5
+    #27: 0x418efcb9
+    #28: 0x41d1feac
+    #29: 0x41d203b8
+    #30: 0x41d2054a
+    #31: 0x418e3a10
+    #32: 0x41d1feac
+    #33: 0x41d20414
+    #34: 0x41d2054a
+    #35: 0x418e3cc0
+    #36: 0x418e3d45
+    #37: 0x431d459e
+    #38: 0x431d42e9
+    #39: 0x431d3a76 in
+AspNetEdit.SampleHost.SampleHost.toolboxAddButton_Clicked(System.Object,System.EventArgs)+0xc6
+at /home/cvs/aspeditor/src/aspnetedit/SampleHost.cs:306
+    #40: 0x41e823ba in <(wrapper delegate-invoke)
+System.MulticastDelegate:invoke_void_object_EventArgs
+(object,System.EventArgs)>+0x52 at 46
+    #41: 0x4305c4f8 in
+GLib.Signal.voidObjectCallback(System.IntPtr,System.IntPtr)+0xc0 at
+/home/cvs/gtk-sharp/glib/Signal.cs:175
+    #42: 0x41e71abe in <(wrapper native-to-managed)
+GLib.Signal:voidObjectCallback (intptr,intptr)>+0x36 at 13
+    #43: 0x41d287b1
+    #44: 0x41d19d9b
+    #45: 0x41d2b286
+    #46: 0x41d2c371
+    #47: 0x41d2c575
+    #48: 0x41a061bd
+    #49: 0x41d287b1
+    #50: 0x41d19d9b
+    #51: 0x41d2aca0
+    #52: 0x41d2c371
+    #53: 0x41d2c6a2
+    #54: 0x418714af
+    #55: 0x418726d7
+    #56: 0x41d287b1
+    #57: 0x41d19a87
+    #58: 0x41d19d9b
+    #59: 0x41d2aae2
+    #60: 0x41d2c371
+    #61: 0x41d2c6a2
+    #62: 0x418713fc
+    #63: 0x4187251d
+    #64: 0x41941c8c
+    #65: 0x41d19a87
+    #66: 0x41d19d9b
+    #67: 0x41d2b0d6
+    #68: 0x41d2c0cc
+    #69: 0x41d2c6a2
+    #70: 0x41a5f89e
+    #71: 0x41a5f3d6
+    #72: 0x41940061
+    #73: 0x4193eb9d
+    #74: 0x41b7f1e1
+    #75: 0x40257e87
+    #76: 0x4025a5c7
+    #77: 0x4025b7b7
+    #78: 0x4193e25d
+    #79: 0x431d2289 in <(wrapper managed-to-native)
+Gtk.Application:gtk_main ()>+0x29 at 9
+    #80: 0x431d2248 in Gtk.Application.Run()+0x8 at
+/home/cvs/gtk-sharp/gtk/Application.cs:100
+    #81: 0x40d9dc1e in AspNetEdit.SampleHost.SampleHost.Main()+0x13ae at
+/home/cvs/aspeditor/src/aspnetedit/SampleHost.cs:197
+
+So 81 frames, so my feeling is that there is something wrong on that stack
+trace