http://bugzilla.novell.com/show_bug.cgi?id=571151
http://bugzilla.novell.com/show_bug.cgi?id=571151#c0
Summary: Mono.Debugger.TargetMemoryException at address
0x00000004
Classification: Mono
Product: Mono: Class Libraries
Version: 2.6.x
Platform: 32bit
OS/Version: openSUSE 11.2
Status: NEW
Severity: Major
Priority: P5 - None
Component: CORLIB
AssignedTo: mono-bugs at lists.ximian.com
ReportedBy: bkesecker at augustasystems.com
QAContact: mono-bugs at lists.ximian.com
Found By: ---
Blocker: ---
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.6)
Gecko/20091201 SUSE/3.5.6-1.1.1 Firefox/3.5.6
I have two (nearly identical) machines running this same configuration, both
exhibit the same behavior described here (no VMs involved). This exception is
displayed in the MonoVS Log Viewer when Remote Debugging is chosen from a
Visual Studio 2008 instance running a test application (one with just a form).
The machine running VS has an activated version of Mono Tools for Visual Studio
at version 1.0 (the lastest as of this writing) running Windows 7.
This exception looks like something I will be unable to debug in VS.
This test application does, however, work fine in the openSuSE VM image.
[10:09:45:5599770] Using config file:
/usr/lib/monovs-server/monovs-debug-server.exe.config
[10:09:48:5604900] EXCEPTION: Mono.Debugger.TargetMemoryException: Cannot read
4 bytes from target memory at address 0x00000004
[10:09:48:5608350] at Mono.Debugger.Backend.Inferior.read_buffer
(TargetAddress address, Int32 size) [0x00047] in
/usr/src/packages/BUILD/mono-debugger-2.4.2.2/backend/Inferior.cs:884
[10:09:48:5609880] at Mono.Debugger.Backend.Inferior.ReadInteger
(TargetAddress address) [0x0000c] in
/usr/src/packages/BUILD/mono-debugger-2.4.2.2/backend/Inferior.cs:919
[10:09:48:5611190] at
Mono.Debugger.Languages.Mono.MonoRuntime.MonoMethodGetToken
(Mono.Debugger.TargetMemoryAccess memory, TargetAddress method) [0x00000] in
/usr/src/packages/BUILD/mono-debugger-2.4.2.2/languages/mono/MonoRuntime.cs:195
[10:09:48:5612440] at (wrapper remoting-invoke-with-check)
Mono.Debugger.Languages.Mono.MonoRuntime:MonoMethodGetToken
(Mono.Debugger.TargetMemoryAccess,Mono.Debugger.TargetAddress)
[10:09:48:5613680] at
Mono.Debugger.Languages.Mono.MonoLanguageBackend.ReadMonoMethod
(Mono.Debugger.TargetMemoryAccess memory, TargetAddress address) [0x00000] in
/usr/src/packages/BUILD/mono-debugger-2.4.2.2/languages/mono/MonoLanguageBackend.cs:487
[10:09:48:5614970] at
Mono.Debugger.Languages.Mono.MonoLanguageBackend.reached_main
(Mono.Debugger.TargetMemoryAccess target, TargetAddress method) [0x00000] in
/usr/src/packages/BUILD/mono-debugger-2.4.2.2/languages/mono/MonoLanguageBackend.cs:481
[10:09:48:5616440] at
Mono.Debugger.Languages.Mono.MonoLanguageBackend.Notification
(Mono.Debugger.Backend.SingleSteppingEngine engine,
Mono.Debugger.Backend.Inferior inferior, NotificationType type, TargetAddress
data, Int64 arg) [0x00080] in
/usr/src/packages/BUILD/mono-debugger-2.4.2.2/languages/mono/MonoLanguageBackend.cs:1396
[10:09:48:5618120] at (wrapper remoting-invoke-with-check)
Mono.Debugger.Languages.Mono.MonoLanguageBackend:Notification
(Mono.Debugger.Backend.SingleSteppingEngine,Mono.Debugger.Backend.Inferior,Mono.Debugger.Backend.NotificationType,Mono.Debugger.TargetAddress,long)
[10:09:48:5619550] at
Mono.Debugger.Backend.MonoThreadManager.HandleChildEvent
(Mono.Debugger.Backend.SingleSteppingEngine engine,
Mono.Debugger.Backend.Inferior inferior, Mono.Debugger.Backend.ChildEvent&
cevent, System.Boolean& resume_target) [0x003d9] in
/usr/src/packages/BUILD/mono-debugger-2.4.2.2/backend/MonoThreadManager.cs:373
[10:09:48:5620810] at Mono.Debugger.Backend.ThreadManager.HandleChildEvent
(Mono.Debugger.Backend.SingleSteppingEngine engine,
Mono.Debugger.Backend.Inferior inferior, Mono.Debugger.Backend.ChildEvent&
cevent, System.Boolean& resume_target) [0x00121] in
/usr/src/packages/BUILD/mono-debugger-2.4.2.2/backend/ThreadManager.cs:210
[10:09:48:5622050] at (wrapper remoting-invoke-with-check)
Mono.Debugger.Backend.ThreadManager:HandleChildEvent
(Mono.Debugger.Backend.SingleSteppingEngine,Mono.Debugger.Backend.Inferior,Mono.Debugger.Backend.Inferior/ChildEvent&,bool&)
[10:09:48:5623310] at Mono.Debugger.Backend.SingleSteppingEngine.ProcessEvent
(Mono.Debugger.Backend.ChildEvent cevent) [0x0021e] in
/usr/src/packages/BUILD/mono-debugger-2.4.2.2/backend/SingleSteppingEngine.cs:216
[10:09:48:5624570] at Mono.Debugger.Backend.SingleSteppingEngine.ProcessEvent
(Int32 status) [0x0000c] in
/usr/src/packages/BUILD/mono-debugger-2.4.2.2/backend/SingleSteppingEngine.cs:155
[10:09:48:5625810] at (wrapper remoting-invoke-with-check)
Mono.Debugger.Backend.SingleSteppingEngine:ProcessEvent (int)
[10:09:48:5627130] at Mono.Debugger.Backend.ThreadManager.engine_thread_main
() [0x000cd] in
/usr/src/packages/BUILD/mono-debugger-2.4.2.2/backend/ThreadManager.cs:333
Reproducible: Always
Steps to Reproduce:
1. Load VS test project
2. Compile project (make sure no errors)
3. Select Debug Remotely in Mono from Mono menu
4. View message in remote MonoVS GUI Server Log Viewer window
Actual Results:
The exception as described above.
Expected Results:
Application starts.
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