[Mono-bugs] [Bug 78638][Wis] New - GetDelegateForFunctionPointer is crashing

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Changed by jonathan.chambers at ansys.com.

http://bugzilla.ximian.com/show_bug.cgi?id=78638

--- shadow/78638	2006-06-14 01:00:40.000000000 -0400
+++ shadow/78638.tmp.28928	2006-06-14 01:00:40.000000000 -0400
@@ -0,0 +1,83 @@
+Bug#: 78638
+Product: Mono: Runtime
+Version: 1.0
+OS: 
+OS Details: 
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Wishlist
+Component: interop
+AssignedTo: mono-bugs at ximian.com                            
+ReportedBy: jonathan.chambers at ansys.com               
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: GetDelegateForFunctionPointer is crashing
+
+Please fill in this template when reporting a bug, unless you know what you
+are doing.
+Description of Problem:
+GetDelegateForFunctionPointer is crashing. Happened somewhere between
+r60000 and r61000 (I'm try to narrow down).
+
+
+Steps to reproduce the problem:
+1. Run attached test app
+
+Actual Results:
+mono Program.exe
+Inside test_function
+*** glibc detected *** free(): invalid pointer: 0x081d2ac4 ***
+
+=================================================================
+Got a SIGABRT while executing native code. This usually indicates
+a fatal error in the mono runtime or one of the native libraries
+used by your application.
+=================================================================
+
+Stacktrace:
+
+in (wrapper managed-to-native)
+System.Runtime.InteropServices.Marshal:GetDelegateForFunctionPointerInternal
+(intptr,System.Type) <0x4>
+in (wrapper managed-to-native)
+System.Runtime.InteropServices.Marshal:GetDelegateForFunctionPointerInternal
+(intptr,System.Type) <0xfffff4da>
+in System.Runtime.InteropServices.Marshal:GetDelegateForFunctionPointer
+(intptr,System.Type) <0x4a>
+in testapp.Program:Main (string[]) <0x16>
+in (wrapper runtime-invoke) System.Object:runtime_invoke_void_string[]
+(object,intptr,intptr,intptr) <0x50c13879>
+
+Native stacktrace:
+
+        mono(mono_handle_native_sigsegv+0x8d) [0x814be4d]
+        [0xffffe440]
+        /lib/tls/i686/cmov/libc.so.6(abort+0xe9) [0xb7d952e9]
+        /lib/tls/i686/cmov/libc.so.6 [0xb7dc770a]
+        /lib/tls/i686/cmov/libc.so.6 [0xb7dcdf74]
+        /lib/tls/i686/cmov/libc.so.6(__libc_free+0x8a) [0xb7dce2ea]
+        /usr/lib/libglib-2.0.so.0(g_free+0x22) [0xb7f1a054]
+        mono(mono_ftnptr_to_delegate+0x1c0) [0x80baa60]
+        [0xb7481861]
+        [0xb7480d13]
+        [0xb7480b87]
+        [0xb7480a53]
+        mono(mono_runtime_exec_main+0x52) [0x80942a2]
+        mono(mono_runtime_run_main+0x133) [0x8097443]
+        mono(mono_main+0xf69) [0x805d239]
+        /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xd2) [0xb7d7fec2]
+        mono [0x805bd71]
+Aborted
+
+
+Expected Results:
+no crash
+
+
+How often does this happen? 
+everytime
+
+Additional Information: