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Re: [lmi] Segfault in lmi with wx-2.9.5

From: Greg Chicares
Subject: Re: [lmi] Segfault in lmi with wx-2.9.5
Date: Sun, 14 Jul 2013 12:53:12 +0000
User-agent: Mozilla/5.0 (Windows NT 5.1; rv:17.0) Gecko/20130620 Thunderbird/17.0.7 
On 2013-07-13 23:18Z, Vadim Zeitlin wrote:
> On Sat, 13 Jul 2013 13:51:20 +0000 Greg Chicares <address@hidden> wrote:
> 
> GC> I guess all I can do is try somehow to reproduce it.
> 
>  This is almost certainly not the same problem

Perhaps it is the same, or related: I use keyboard shortcuts
heavily, and this is definitely the kind of thing I was doing
when it crashed the other day; and there's some similarity in
the DrMinGW logs, as noted below.

> but I just ran into a
> perfectly reproducible crash: after starting LMI, press "Ctrl-N|I" and
> Escape when the illustration dialog is shown. The program immediately
> crashes. Unfortunately the version I built (using the official install
> script)

You actually used lmi's 'GNUmakefile'?

> doesn't seem to be debuggable so I don't know why exactly does this
> happen, nor do I know if it is new.

It is new: I can't reproduce it with my last wx-2.9.3 build, and
no wx-dependent code in lmi has changed since then.

But I was able to debug it.

Here's gdb output. As usual, there are *many* occurrences of
  Invalid Address specified to RtlFreeHeap
and usually I do this:
  handle SIGTRAP nostop noprint
in gdb so that I don't have to keep typing 'c' to continue, but
this time I chose to type 'c' over and over, and observed a few
diagnostics like this (which may have occurred in the past but
escaped my notice due to "handle SIGTRAP nostop noprint"):

Program received signal SIGTRAP, Trace/breakpoint trap.
0x7c90120f in ntdll!DbgBreakPoint ()
   from /cygdrive/c/WINDOWS/system32/ntdll.dll
(gdb) c
Continuing.
warning: not enough space for wxSpinCtrl!
warning: not enough space for wxSpinCtrl!
warning: not enough space for wxSpinCtrl!
warning: not enough space for wxSpinCtrl!
warning: not enough space for wxSpinCtrl!
warning: not enough space for wxSpinCtrl!
warning: not enough space for wxSpinCtrl!
warning: not enough space for wxSpinCtrl!
warning: not enough space for wxSpinCtrl!
warning: not enough space for wxSpinCtrl!
warning: not enough space for wxSpinCtrl!
warning: not enough space for wxSpinCtrl!
warning: HEAP[lmi_wx_shared.exe]:
warning: Invalid Address specified to RtlFreeHeap( 039A0000, 6F53B4CC )

I'm not sure what that means. Could it be a layout issue, which
WXXRC addresses appropriately AFAICT? Or could it that some
spincontrols demand more RAM than is available? Anyway, later on
(after typing 'c' many, many more times), the segfault appears,
with a backtrace:

Program received signal SIGSEGV, Segmentation fault.
0x03d2dad1 in ?? ()
(gdb) bt
#0  0x03d2dad1 in ?? ()
#1  0x6eaf1480 in wxDocTemplate::InitDocument(wxDocument*, wxString const&, 
long) ()
   from 
/opt/lmi/local/lib/wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll
#2  0x6eaec4e7 in wxDocTemplate::CreateDocument(wxString const&, long) ()
   from 
/opt/lmi/local/lib/wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll
#3  0x6eb003d1 in wxDocManager::CreateDocument(wxString const&, long) ()
   from 
/opt/lmi/local/lib/wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll
#4  0x6eaee423 in wxDocManager::OnFileNew(wxCommandEvent&) ()
   from 
/opt/lmi/local/lib/wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll
#5  0x6e503aee in wxAppConsoleBase::CallEventHandler(wxEvtHandler*, 
wxEventFunctor&, wxEvent&) const ()
   from 
/opt/lmi/local/lib/wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll
#6  0x6e74304e in wxEvtHandler::ProcessEventIfMatchesId(wxEventTableEntryBase 
const&, wxEvtHandler*, wxEvent&) ()
   from 
/opt/lmi/local/lib/wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll
#7  0x6e748cc3 in wxEventHashTable::HandleEvent(wxEvent&, wxEvtHandler*) ()
---Type <return> to continue, or q <return> to quit---
   from 
/opt/lmi/local/lib/wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll
#8  0x6e748d2e in wxEvtHandler::TryHereOnly(wxEvent&) ()
   from 
/opt/lmi/local/lib/wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll
#9  0x6e748dcc in wxEvtHandler::ProcessEventLocally(wxEvent&) ()
   from 
/opt/lmi/local/lib/wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll
#10 0x6eaed14b in wxDocParentFrameAnyBase::TryProcessEvent(wxEvent&) ()
   from 
/opt/lmi/local/lib/wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll
#11 0x6f3fd0d9 in wxDocParentFrameAny<wxMDIParentFrame>::TryBefore(wxEvent&) ()
   from 
/opt/lmi/local/lib/wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll
#12 0x6e748d9a in wxEvtHandler::ProcessEventLocally(wxEvent&) ()
   from 
/opt/lmi/local/lib/wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll
#13 0x6e748e65 in wxEvtHandler::ProcessEvent(wxEvent&) ()
   from 
/opt/lmi/local/lib/wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll
#14 0x6ec2c309 in wxWindowBase::TryAfter(wxEvent&) ()
   from 
/opt/lmi/local/lib/wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll
---Type <return> to continue, or q <return> to quit---
#15 0x6e748ecb in wxEvtHandler::ProcessEvent(wxEvent&) ()
   from 
/opt/lmi/local/lib/wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll
#16 0x6e74355c in wxEvtHandler::SafelyProcessEvent(wxEvent&) ()
   from 
/opt/lmi/local/lib/wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll
#17 0x6ec289eb in wxWindowBase::HandleWindowEvent(wxEvent&) const ()
   from 
/opt/lmi/local/lib/wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll
#18 0x6ebb0fea in wxMenuBase::SendEvent(int, int) ()
   from 
/opt/lmi/local/lib/wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll
#19 0x6eb2c2c8 in wxFrameBase::ProcessCommand(wxMenuItem*) ()
   from 
/opt/lmi/local/lib/wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll
#20 0x6e998522 in wxFrame::HandleCommand(unsigned short, unsigned short, 
HWND__*) ()
   from 
/opt/lmi/local/lib/wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll
#21 0x6e9989d0 in wxFrame::MSWWindowProc(unsigned int, unsigned int, long) ()
   from 
/opt/lmi/local/lib/wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll
#22 0x6e9cec0e in wxMDIParentFrame::MSWWindowProc(unsigned int, unsigned int, 
lo---Type <return> to continue, or q <return> to quit---
ng) ()
   from 
/opt/lmi/local/lib/wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll
#23 0x6e8ffbb0 in wxWndProc(HWND__*, unsigned int, unsigned int, long) ()
   from 
/opt/lmi/local/lib/wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll
#24 0x7e418734 in USER32!GetDC () from /cygdrive/c/WINDOWS/system32/USER32.dll
#25 0x007e0bb8 in ?? ()
#26 0x00000111 in ?? ()
#27 0x0001138a in ?? ()
#28 0x00000000 in ?? ()
(gdb)

And here's DrMinGW output, which is of course from a different
lmi session, but one with the same "Ctrl-N | I" testcase. It
is preceded by INT 3 ("ExceptionCode = 80000003") as we saw
the other day; no INT 3 event is observed in gdb, so this
supports your idea that this JIT debugger is issuing the INT 3
itself. The backtrace seems different than gdb's:

DEBUG_EVENT:
        dwDebugEventCode = EXCEPTION_DEBUG_EVENT
        dwProcessId = E68
        dwThreadId = BCC
        ExceptionCode = 80000003
        ExceptionFlags = 0
        ExceptionAddress = 7C90120E
        dwFirstChance = 1
DEBUG_EVENT:
        dwDebugEventCode = EXCEPTION_DEBUG_EVENT
        dwProcessId = E68
        dwThreadId = 3E8
        ExceptionCode = C0000005
        ExceptionFlags = 0
        ExceptionAddress = FC0600
        dwFirstChance = 0
lmi_wx_shared.exe caused an Access Violation at location 00fc0600 in module 
lmi_wx_shared.exe Reading from location 00fc0600.

Registers:
eax=03c46008 ebx=03c46008 ecx=0022ef74 edx=00fc0600 esi=03bf9490 edi=03c44b10
eip=00fc0600 esp=0022eeb0 ebp=0022ef0c iopl=0         nv up ei pl nz na pe nc
cs=001b  ss=0023  ds=0023  es=0023  fs=003b  gs=0000             efl=00000202

Call stack:
AddrPC     AddrReturn AddrFrame  AddrStack  Params
00FC0600   6F483DA3   0022EEAC   0022EEB0   03C46008   FFFFFFFF   0022EF0C   
6EAF135C
00FC0600  lmi_wx_shared.exe:00FC0600C:\opt\lmi\bin\lmi_wx_shared.exe: No symbol 
found

6F483DA3   6EAF1480   0022EF0C   0022EEB0   0022EF74   0022F1B4   00000001   
03BF9490
6F483DA3  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6F483DA3C:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  _ZN9wxPenBaseD1Ev
6EAF1480   6EAEC4E7   0022EF9C   0022EEB0   03BF9490   03C46008   0022F1B4   
00000001
6EAF1480  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6EAF1480C:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  _ZN13wxDocTemplate12InitDocumentEP10wxDocumentRK8wxStringl
6EAEC4E7   6EB003D1   0022EFBC   0022EEB0   03BF9490   0022F1B4   00000001   
00000000
6EAEC4E7  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6EAEC4E7C:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  _ZN13wxDocTemplate14CreateDocumentERK8wxStringl
6EB003D1   6EAEE423   0022F1EC   0022EEB0   03C44B10   0022F254   00000001   
0022F224
6EB003D1  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6EB003D1C:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  _ZN12wxDocManager14CreateDocumentERK8wxStringl
6EAEE423   6E503AEE   0022F27C   0022EEB0   03C44B10   0022F5C4   6EAEE3B0   
00000000
6EAEE423  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6EAEE423C:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  _ZN12wxDocManager9OnFileNewER14wxCommandEvent
6E503AEE   6E74304E   0022F2AC   0022EEB0   03AED7E0   03C44B10   03ADB5F8   
0022F5C4
6E503AEE  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6E503AEEC:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  
_ZNK16wxAppConsoleBase16CallEventHandlerEP12wxEvtHandlerR14wxEventFunctorR7wxEvent
6E74304E   6E748CC3   0022F2DC   0022EEB0   6F69FAB0   03C44B10   0022F5C4   
7E4304BD
6E74304E  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6E74304EC:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  
_ZN12wxEvtHandler23ProcessEventIfMatchesIdERK21wxEventTableEntryBasePS_R7wxEvent
6E748CC3   6E748D2E   0022F30C   0022EEB0   0059B790   0022F5C4   03C44B10   
7E43049B
6E748CC3  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6E748CC3C:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  _ZN16wxEventHashTable11HandleEventER7wxEventP12wxEvtHandler
6E748D2E   6E748DCC   0022F32C   0022EEB0   03C44B10   0022F5C4   00000000   
03C36454
6E748D2E  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6E748D2EC:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  _ZN12wxEvtHandler11TryHereOnlyER7wxEvent
6E748DCC   6EAED14B   0022F34C   0022EEB0   03C44B10   0022F5C4   00000014   
03C3D7D8
6E748DCC  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6E748DCCC:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  _ZN12wxEvtHandler19ProcessEventLocallyER7wxEvent
6EAED14B   6F3FD0D9   0022F36C   0022EEB0   03C36454   0022F5C4   00000000   
03C36290
6EAED14B  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6EAED14BC:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  _ZN23wxDocParentFrameAnyBase15TryProcessEventER7wxEvent
6F3FD0D9   6E748D9A   0022F38C   0022EEB0   03C36290   0022F5C4   00000000   
03B2DEC0
6F3FD0D9  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6F3FD0D9C:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  _ZN19wxDisplayImplSingle10ChangeModeERK11wxVideoMode
6E748D9A   6E748E65   0022F3AC   0022EEB0   03C36290   0022F5C4   0022F3DC   
6EC2760B
6E748D9A  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6E748D9AC:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  _ZN12wxEvtHandler19ProcessEventLocallyER7wxEvent
6E748E65   6EC2C309   0022F3DC   0022EEB0   03C36290   0022F5C4   0022F46C   
6E7434AE
6E748E65  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6E748E65C:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  _ZN12wxEvtHandler12ProcessEventER7wxEvent
6EC2C309   6E748ECB   0022F47C   0022EEB0   03B2DEC0   0022F5C4   0022F4BC   
6E748ECB
6EC2C309  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6EC2C309C:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  _ZN12wxWindowBase8TryAfterER7wxEvent
6E748ECB   6E74355C   0022F4AC   0022EEB0   03B2DEC0   0022F5C4   0022F52C   
6E74356D
6E748ECB  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6E748ECBC:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  _ZN12wxEvtHandler12ProcessEventER7wxEvent
6E74355C   6EC289EB   0022F51C   0022EEB0   03B2DEC0   0022F5C4   0022F62C   
6EBB0FEA
6E74355C  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6E74355CC:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  _ZN12wxEvtHandler18SafelyProcessEventER7wxEvent
6EC289EB   6EBB0FEA   0022F52C   0022EEB0   03B2DEC0   0022F5C4   0000138A   
0022F584
6EC289EB  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6EC289EBC:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  _ZNK12wxWindowBase17HandleWindowEventER7wxEvent
6EBB0FEA   6EB2C2C8   0022F62C   0022EEB0   03C3D7D8   0000138A   FFFFFFFF   
6E8ECCA4
6EBB0FEA  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6EBB0FEAC:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  _ZN10wxMenuBase9SendEventEii
6EB2C2C8   6E998522   0022F64C   0022EEB0   03C36290   03AF1380   0022F72C   
01FFFFFF
6EB2C2C8  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6EB2C2C8C:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  _ZN11wxFrameBase14ProcessCommandEP10wxMenuItem
6E998522   6E9989D0   0022F67C   0022EEB0   03C36290   0000138A   00000001   
00000000
6E998522  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6E998522C:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  _ZN7wxFrame13HandleCommandEttP6HWND__
6E9989D0   6E9CEC0E   0022F72C   0022EEB0   03C36290   00000111   0001138A   
00000000
6E9989D0  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6E9989D0C:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  _ZN7wxFrame13MSWWindowProcEjjl
6E9CEC0E   6E8FFBB0   0022F9AC   0022EEB0   03C36290   00000111   0001138A   
00000000
6E9CEC0E  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6E9CEC0EC:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  _ZN16wxMDIParentFrame13MSWWindowProcEjjl
6E8FFBB0   7E418734   0022F9DC   0022EEB0   00790B6A   00000111   0001138A   
00000000
6E8FFBB0  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6E8FFBB0C:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  address@hidden
7E418734   7E418816   0022FA08   0022EEB0   6E8FFB00   00790B6A   00000111   
0001138A
7E418734  USER32.dll:7E418734  GetDC
7E418816   7E428EA0   0022FA70   0022EEB0   00000000   6E8FFB00   00790B6A   
00000111
7E418816  USER32.dll:7E418816  GetDC
7E428EA0   7E428EEC   0022FAC4   0022EEB0   0370C378   00000111   0001138A   
00000000
7E428EA0  USER32.dll:7E428EA0  DefWindowProcW
7E428EEC   7C90E453   0022FAEC   0022EEB0   0022FAFC   00000018   0370C378   
00000111
7E428EEC  USER32.dll:7E428EEC  DefWindowProcW
7C90E453   6E9557C4   0022FB28   0022EEB0   00790B6A   00C50D01   0022FBE0   
00000000
7C90E453  ntdll.dll:7C90E453  KiUserCallbackDispatcher
6E9557C4   6E99847A   0022FB48   0022EEB0   03B2DF5C   03C36290   0022FBE0   
00000000
6E9557C4  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6E9557C4C:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  _ZNK18wxAcceleratorTable9TranslateEP8wxWindowP6tagMSG
6E99847A   6E9C4C17   0022FB68   0022EEB0   03C36290   03C36290   0022FBE0   
00B20B96
6E99847A  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6E99847AC:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  _ZN7wxFrame21MSWDoTranslateMessageEPS_P6tagMSG
6E9C4C17   6E98E422   0022FB88   0022EEB0   03C36290   0022FBE0   00242389   
0022FBE0
6E9C4C17  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6E9C4C17C:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  _ZN16wxMDIParentFrame19MSWTranslateMessageEP6tagMSG
6E98E422   6E98E579   0022FBA8   0022EEB0   03C44898   0022FBE0   00000064   
03C44898
6E98E422  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6E98E422C:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  _ZN14wxGUIEventLoop17PreProcessMessageEP6tagMSG
6E98E579   6E98E5DC   0022FBC8   0022EEB0   03C44898   0022FBE0   00000000   
00000000
6E98E579  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6E98E579C:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  _ZN14wxGUIEventLoop14ProcessMessageEP6tagMSG
6E98E5DC   6E554BAF   0022FC08   0022EEB0   03C44898   00242389   0022FCB8   
6E554C79
6E98E5DC  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6E98E5DCC:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  _ZN14wxGUIEventLoop8DispatchEv
6E554BAF   6E554C79   0022FC18   0022EEB0   03C44898   00242389   0022FCB8   
6E7AFA91
6E554BAF  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6E554BAFC:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  _ZN17wxEventLoopManual13ProcessEventsEv
6E554C79   6E50AC37   0022FCB8   0022EEB0   03C44898   00000000   0022FDD8   
03BFEAA8
6E554C79  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6E554C79C:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  _ZN17wxEventLoopManual3RunEv
6E50AC37   6E5DAE70   0022FD48   0022EEB0   03AED7E0   03AF2480   0059BF70   
0022FDFC
6E50AC37  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6E50AC37C:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  _ZN16wxAppConsoleBase8MainLoopEv
6E5DAE70   6E760CC3   0022FDD8   0022EEB0   6F67AF10   03AF2480   00000000   
00000000
6E5DAE70  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6E5DAE70C:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  _Z12wxInitializev
6E760CC3   00460B0D   0022FE58   0022EEB0   00400000   00000000   00242389   
0000000A
6E760CC3  
wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:6E760CC3C:\opt\lmi\local\lib\wxmsw295u_gcc_gcc-345-6b6003713289ea4d3cd9b49c5db5b721.dll:
 No symbol found
  _Z7wxEntryP11HINSTANCE__S0_Pci
00460B0D   004D1858   0022FEF8   0022EEB0   00400000   00000000   00242389   
0000000A
00460B0D  lmi_wx_shared.exe:00460B0DC:\opt\lmi\bin\lmi_wx_shared.exe: No symbol 
found

004D1858   0040124B   0022FF78   0022EEB0   00000003   03AE8070   039A2BC0   
0059B000
004D1858  lmi_wx_shared.exe:004D1858C:\opt\lmi\bin\lmi_wx_shared.exe: No symbol 
found

0040124B   004012B8   0022FFB0   0022EEB0   00000002   00000009   0022FFF0   
7C817067
0040124B  lmi_wx_shared.exe:0040124BC:\opt\lmi\bin\lmi_wx_shared.exe: No symbol 
found

004012B8   7C817067   0022FFC0   0022EEB0   00220458   610E7E4E   7FFDA000   
C0000005
004012B8  lmi_wx_shared.exe:004012B8C:\opt\lmi\bin\lmi_wx_shared.exe: No symbol 
found

7C817067   00000000   0022FFF0   0022EEB0   004012A0   00000000   78746341   
00000020
7C817067  kernel32.dll:7C817067  RegisterWaitForInputIdle
DEBUG_EVENT:
        dwDebugEventCode = EXIT_THREAD_DEBUG_EVENT
        dwProcessId = E68
        dwThreadId = BCC
        dwExitCode = 0
DEBUG_EVENT:
        dwDebugEventCode = EXIT_PROCESS_DEBUG_EVENT
        dwProcessId = E68
        dwThreadId = 3E8
        dwExitCode = C0000005

It may be interesting to compare the beginning of this DrMingw
output to that in my earlier message:

On 2013-07-12 19:36Z, Greg Chicares wrote:
[...]
> lmi_wx_shared.exe caused an Access Violation at location 03dad2aa Writing to 
> location 0021323f.
>
> Registers:
> eax=b40386d2 ebx=03c4c00b ecx=0022ef26 edx=03dad260 esi=d2f803ca edi=03c44b10
> eip=03dad2aa esp=0021c64a ebp=00225a51 iopl=0         nv up ei ng nz na po nc
> cs=001b  ss=0023  ds=0023  es=0023  fs=003b  gs=0000             efl=00000286
>
> Call stack:
> AddrPC     AddrReturn AddrFrame  AddrStack  Params
> 03DAD2AA   2E00225A   00225A51   0021C64A   186E748D   DC0059BD   7400225C   
> E900225A
> 03DAD2AA
> 2E00225A   00000000   0022EE5C   0021C64A   6F483DA3   03C4C008   FFFFFFFF   
> 0022EEC0
> 2E00225A

[today's output, quoted from above]
| lmi_wx_shared.exe caused an Access Violation at location 00fc0600 in module 
lmi_wx_shared.exe Reading from location 00fc0600.
|
| Registers:
| eax=03c46008 ebx=03c46008 ecx=0022ef74 edx=00fc0600 esi=03bf9490 edi=03c44b10
| eip=00fc0600 esp=0022eeb0 ebp=0022ef0c iopl=0         nv up ei pl nz na pe nc
| cs=001b  ss=0023  ds=0023  es=0023  fs=003b  gs=0000             efl=00000202
|
| Call stack:
| AddrPC     AddrReturn AddrFrame  AddrStack  Params
| 00FC0600   6F483DA3   0022EEAC   0022EEB0   03C46008   FFFFFFFF   0022EF0C   
6EAF135C
| 00FC0600  lmi_wx_shared.exe:00FC0600C:\opt\lmi\bin\lmi_wx_shared.exe: No 
symbol found

edi is the same; ebx, ecx, esp, and ebp are close.
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