[Mono-bugs] [Bug 617228] SDB: Using MethodCall.Invoke() to invoke a method containing null reference
http://bugzilla.novell.com/show_bug.cgi?id=617228 http://bugzilla.novell.com/show_bug.cgi?id=617228#c10 Martin Baulig mar...@novell.com changed: What|Removed |Added Status|NEW |RESOLVED Resolution||FIXED --- Comment #10 from Martin Baulig mar...@novell.com 2010-07-05 14:06:38 UTC --- Applied to mono/trunk in 159901. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are the QA contact for the bug. ___ mono-bugs maillist - mono-bugs@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-bugs
[Mono-bugs] [Bug 617228] SDB: Using MethodCall.Invoke() to invoke a method containing null reference
http://bugzilla.novell.com/show_bug.cgi?id=617228 http://bugzilla.novell.com/show_bug.cgi?id=617228#c6 --- Comment #6 from Martin Baulig mar...@novell.com 2010-07-01 12:45:20 UTC --- Update: I have a patch for Windows (tested with the testcase from comment #2) and Linux/x64 (compiles, still untested). I'll clean it up a bit, write ChangeLogs, test with BlogEngine.NET on both Windows and Linux and then attach the patch. Should be ready in about 1-2 hours. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are the QA contact for the bug. ___ mono-bugs maillist - mono-bugs@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-bugs
[Mono-bugs] [Bug 617228] SDB: Using MethodCall.Invoke() to invoke a method containing null reference
http://bugzilla.novell.com/show_bug.cgi?id=617228 http://bugzilla.novell.com/show_bug.cgi?id=617228#c7 --- Comment #7 from Martin Baulig mar...@novell.com 2010-07-01 15:12:30 UTC --- Created an attachment (id=373269) -- (http://bugzilla.novell.com/attachment.cgi?id=373269) Patch. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are the QA contact for the bug. ___ mono-bugs maillist - mono-bugs@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-bugs
[Mono-bugs] [Bug 617228] SDB: Using MethodCall.Invoke() to invoke a method containing null reference
http://bugzilla.novell.com/show_bug.cgi?id=617228 http://bugzilla.novell.com/show_bug.cgi?id=617228#c8 --- Comment #8 from Zoltan Varga var...@gmail.com 2010-07-01 15:33:07 UTC --- Looks ok, just put the windows specific stuff into a #ifdef TARGET_WIN32 in mono_arch_handle_exception (), since !defined(MONO_ARCH_HAVE_SIGACTION) does not imply windows, it could be BSD/solaris etc. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are the QA contact for the bug. ___ mono-bugs maillist - mono-bugs@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-bugs
[Mono-bugs] [Bug 617228] SDB: Using MethodCall.Invoke() to invoke a method containing null reference
http://bugzilla.novell.com/show_bug.cgi?id=617228 http://bugzilla.novell.com/show_bug.cgi?id=617228#c9 --- Comment #9 from Martin Baulig mar...@novell.com 2010-07-01 16:09:48 UTC --- Fixed in SVN: r159782 in mono-2-6-branch/mono. The Windows part of this still needs to be applied to trunk; leaving this bug open till I've done that. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are the QA contact for the bug. ___ mono-bugs maillist - mono-bugs@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-bugs
[Mono-bugs] [Bug 617228] SDB: Using MethodCall.Invoke() to invoke a method containing null reference
http://bugzilla.novell.com/show_bug.cgi?id=617228 http://bugzilla.novell.com/show_bug.cgi?id=617228#c Martin Baulig mar...@novell.com changed: What|Removed |Added Summary|Mono crashes while |SDB: Using |inspecting local variables |MethodCall.Invoke() to |during local debugging of |invoke a method containing |class constructor |null reference -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are the QA contact for the bug. ___ mono-bugs maillist - mono-bugs@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-bugs
[Mono-bugs] [Bug 617228] SDB: Using MethodCall.Invoke() to invoke a method containing null reference
http://bugzilla.novell.com/show_bug.cgi?id=617228 http://bugzilla.novell.com/show_bug.cgi?id=617228#c2 Martin Baulig mar...@novell.com changed: What|Removed |Added Attachment #371619|0 |1 is obsolete|| --- Comment #2 from Martin Baulig mar...@novell.com 2010-06-30 17:52:09 UTC --- Created an attachment (id=372982) -- (http://bugzilla.novell.com/attachment.cgi?id=372982) Simple test case -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are the QA contact for the bug. ___ mono-bugs maillist - mono-bugs@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-bugs
[Mono-bugs] [Bug 617228] SDB: Using MethodCall.Invoke() to invoke a method containing null reference
http://bugzilla.novell.com/show_bug.cgi?id=617228 http://bugzilla.novell.com/show_bug.cgi?id=617228#c3 Martin Baulig mar...@novell.com changed: What|Removed |Added Severity|Major |Critical --- Comment #3 from Martin Baulig mar...@novell.com 2010-06-30 17:54:03 UTC --- This is a much simpler test case: 1. Insert a breakpoint on the Console.WriteLine(). 2. Debug using a local profile 3. When stopped, expand the variable x in the locals pad This makes mono crash. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are the QA contact for the bug. ___ mono-bugs maillist - mono-bugs@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-bugs
[Mono-bugs] [Bug 617228] SDB: Using MethodCall.Invoke() to invoke a method containing null reference
http://bugzilla.novell.com/show_bug.cgi?id=617228 http://bugzilla.novell.com/show_bug.cgi?id=617228#c4 --- Comment #4 from Martin Baulig mar...@novell.com 2010-06-30 18:04:44 UTC --- Here's what's happening (I'm using a slightly old SVN build on Windows for this stacktrace, but the problem still exists with the latest 2.6.6 for Windows): MonoVS uses MethodCall.Invoke() to invoke X.get_HasChildren, which contains a segfault (_children is null). While the runtime tries to handle the exception, it calls mono_get_exception_null_reference() which mono_runtime_invoke()'s System.NullReferenceException.ctor and at that point, we hit the single-stepping breakpoint, but Windows doesn't seem to recognize it. The top frame of the stack is: 02AD0935 cmp eax,dword ptr ds:[3Ah] and the effective address is the single-stepping page. == 02ad0935() mono.dll!mono_jit_runtime_invoke(_MonoMethod * method=0x026cbaf8, void * obj=0x01f65f18, void * * params=0x, MonoObject * * exc=0x) Line 4779 + 0x18 bytes C mono.dll!mono_runtime_invoke(_MonoMethod * method=0x026cbaf8, void * obj=0x01f65f18, void * * params=0x, MonoObject * * exc=0x) Line 2613 + 0x18 bytesC mono.dll!mono_runtime_object_init(MonoObject * this=0x01f65f18) Line 99 + 0x11 bytesC mono.dll!mono_exception_from_name_domain(_MonoDomain * domain=0x00316ea0, _MonoImage * image=0x02679d08, const char * name_space=0x10563bf0, const char * name=0x10563bd8) Line 64 + 0x9 bytesC mono.dll!mono_exception_from_name(_MonoImage * image=0x02679d08, const char * name_space=0x10563bf0, const char * name=0x10563bd8) Line 34 + 0x17 bytesC mono.dll!mono_get_exception_null_reference() Line 280 + 0x15 bytesC mono.dll!mono_handle_exception_internal(MonoContext * ctx=0x0018ef98, void * obj=0x, void * original_ip=0x02ad06c3, int test_only=0x, int * out_filter_idx=0x, _MonoJitInfo * * out_ji=0x) Line 1135 + 0x5 bytesC mono.dll!mono_handle_exception(MonoContext * ctx=0x0018ef98, void * obj=0x, void * original_ip=0x02ad06c3, int test_only=0x) Line 1504 + 0x19 bytesC mono.dll!mono_arch_handle_exception(void * sigctx=0x026f5c08, void * obj=0x, int test_only=0x) Line 1068 + 0x15 bytesC mono.dll!mono_sigsegv_signal_handler(int _dummy=0x, _EXCEPTION_RECORD * info=0x0018f1c8, void * context=0x026f5c08) Line 4896 + 0xd bytesC mono.dll!seh_handler(_EXCEPTION_POINTERS * ep=0x0018f0c8) Line 192 + 0x1b bytesC kernel32.dll!CheckForReadOnlyResource() + 0x3bf bytes [Frames below may be incorrect and/or missing, no symbols loaded for kernel32.dll] ntdll.dll!RtlKnownExceptionFilter() + 0xb7 bytes ntdll.dll!RtlInitializeExceptionChain() + 0x36 bytes === The mono process crashes here. Maybe Windows doesn't like the recursive segfault inside seh_handler() ? I also don't understand why System.NullReferenceException.ctor contains the single-stepping code, I don't think we should be single-stepping when called from inside the mono_sigsegv_signal_handler(). -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are the QA contact for the bug. ___ mono-bugs maillist - mono-bugs@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-bugs
[Mono-bugs] [Bug 617228] SDB: Using MethodCall.Invoke() to invoke a method containing null reference
http://bugzilla.novell.com/show_bug.cgi?id=617228 http://bugzilla.novell.com/show_bug.cgi?id=617228#c5 Martin Baulig mar...@novell.com changed: What|Removed |Added CC||var...@gmail.com --- Comment #5 from Martin Baulig mar...@novell.com 2010-06-30 18:06:26 UTC --- Hi Zoltan ! Could you please have a look at this ? It's a really annoying bug which makes us crash every time we're trying to evaluate some method that contains a segfault. Thanks, Martin -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are the QA contact for the bug. ___ mono-bugs maillist - mono-bugs@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-bugs
