[Bug 27577] New: Starting apps via winedbg leads to reproducible app crash

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=27577

           Summary: Starting apps via winedbg leads to reproducible app
                    crash
           Product: Wine
           Version: 1.3.22
          Platform: x86
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: winedbg
        AssignedTo: wine-bugs at winehq.org
        ReportedBy: b7.10110111 at gmail.com


To reproduce, install e.g. windows version of GIMP.
Start it this way:
winedbg gimp-2.6.exe
It begins working, then crashes with this output:

WineDbg starting on pid 0029
First chance exception: page fault on write access to 0x003c0000 in 32-bit code
(0x7e77a3d7).
Register dump:
 CS:0073 SS:007b DS:007b ES:007b FS:0033 GS:003b
 EIP:7e77a3d7 ESP:00a3f9c0 EBP:00000330 EFLAGS:00210a02(  R- --O I   - - - )
 EAX:9999cccc EBX:7e82cdb8 ECX:00000001 EDX:00000067
 ESI:003c0002 EDI:000000ac
Stack dump:
0x00a3f9c0:  00000324 00000000 00000000 00000010
0x00a3f9d0:  00000010 00000000 00000000 00000010
0x00a3f9e0:  00000010 7e552648 00156c40 00000000
0x00a3f9f0:  00cc0020 00157760 00000324 00000001
0x00a3fa00:  00000010 00000000 00000010 00000010
0x00a3fa10:  00000040 00200001 00000000 003c0000
Backtrace:
0x7e77a3d7 create_alpha_bitmap+0x1d1 in user32: movb    %dl,0xfffffffe(%esi)
Wine-dbg>

The crash on write access to 0x003c0000 (0x00340000 on another machine) seems
to be always the same across applications. And, if started via wine instead of
winedbg, they work perfectly. Also, if i quit debugger after the crash using
"q" command, the app continues to work normally.

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