[Bug 3738] New: Loading and unloading builtin OpenGL.DLL leads to crash

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=3738

           Summary: Loading and unloading builtin OpenGL.DLL leads to crash
           Product: Wine
           Version: CVS
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: minor
          Priority: P3
         Component: wine-binary
        AssignedTo: wine-bugs(a)winehq.org
        ReportedBy: saulius.krasuckas(a)elst.vtu.lt


Hmmm, I put simple function inside the heap wine test (it was very simple and
easy to modify), by running which I get some exception:

| static void test_UnloadOpenGL()
| {
|     HMODULE hGL;
| 
|     trace("+++ start\n");
|     hGL = LoadLibrary("opengl32.dll");
|     if(!hGL)
|     {
|         trace("--- opengl32.dll failed to load\n");
|         return;
|     }
|     trace("+++ loaded\n");
|     FreeLibrary(hGL);
|     trace("+++ unloaded\n");
| }

$ WINEDLLOVERRIDES='imm32=' ./wine dlls/kernel/tests/kernel32_test.exe.so heap
| heap.c:32:+++ start
| heap.c:39:+++ loaded
| heap.c:41:+++ unloaded
| heap: 0 tests executed, 0 marked as todo, 0 failures.
| wine: Unhandled exception (thread 0009), starting debugger...
| WineDbg starting on pid 0x8
| Unhandled exception: page fault on read access to 0x7f6d892a in 32-bit code
(0x7fca5147).
| In 32 bit mode.
| Register dump:
|  CS:0073 SS:007b DS:007b ES:007b FS:1007 GS:0033
|  EIP:7fca5147 ESP:7f9bf870 EBP:7f9bf8c8 EFLAGS:00010246(   - 00      -RIZP1)
|  EAX:00000001 EBX:7fced600 ECX:ffffffff EDX:7f6d892a
|  ESI:00000000 EDI:00000000

I will attach detailed logs later.  BTW, backtraces differs quite a lot when I
run compiled PE file and compiled ELF file.

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