[Mono-bugs] [Bug 471680] New: Marshal.PtrToStructure() error
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bugzilla_noreply at novell.com
Mon Feb 2 15:30:22 EST 2009
https://bugzilla.novell.com/show_bug.cgi?id=471680
Summary: Marshal.PtrToStructure() error
Classification: Mono
Product: Mono: Class Libraries
Version: 2.2.x
Platform: x86-64
OS/Version: openSUSE 11.1
Status: NEW
Severity: Normal
Priority: P5 - None
Component: System
AssignedTo: mono-bugs at lists.ximian.com
ReportedBy: marcel.hauf at googlemail.com
QAContact: mono-bugs at lists.ximian.com
Found By: Community User
Created an attachment (id=269381)
--> (https://bugzilla.novell.com/attachment.cgi?id=269381)
Source code with monodevelop project file.
Description of Problem:
Converting a structure with Marshal.PtrToStructure() like this:
MyStruct myStruct = (MyStruct)Marshal.PtrToStructure(obj, typeof(MyStruct));
causes an error.
The pointer is invoked from an unmanaged place.
Steps to reproduce the problem:
1. Extract the provided source code.
2. Open the MonoDevelop project file.
3. Compile both projects.
4. Start the terminal application.
Actual Results:
Stacktrace:
at (wrapper managed-to-native) object.__icall_wrapper_mono_string_new_wrapper
(intptr) <0x00059>
at (wrapper managed-to-native) object.__icall_wrapper_mono_string_new_wrapper
(intptr) <0xffffffff>
at (wrapper unknown) CSharp.MyStruct.PtrToStructure (intptr,object)
<0xffffffff>
at (wrapper runtime-invoke) CSharp.MyStruct.runtime_invoke_void_intptr_object
(object,intptr,intptr,intptr) <0xffffffff>
at (wrapper managed-to-native)
System.Runtime.InteropServices.Marshal.PtrToStructure (intptr,System.Type)
<0x0005f>
at (wrapper managed-to-native)
System.Runtime.InteropServices.Marshal.PtrToStructure (intptr,System.Type)
<0xffffffff>
at CSharp.MyClass.SaveMyStruct (intptr) <0x00037>
at (wrapper runtime-invoke) CSharp.MyClass.runtime_invoke_void_intptr
(object,intptr,intptr,intptr) <0xffffffff>
Native stacktrace:
Inconsistency detected by ld.so: dl-open.c: 623: _dl_open: Assertion
`_dl_debug_initialize (0, args.nsid)->r_state == RT_CONSISTENT' failed!
Die Anwendung beendete mit Code: 127
(German to English~: The application aborted with code: 127)
Expected Results:
A successful compilation from an IntPtr to a C# struct.
How often does this happen?
Every time.
Additional Information:
GLIB2 version: 2.18.2
GLIBC version: 2.9
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