Help with debugging needed
Stefan Dösinger
stefandoesinger at gmx.at
Mon Aug 15 13:35:58 CDT 2005
Hi,
That thing gets more and more interesting: I was mislead by the belief that
'next' would behave as 'nexti' at the end of the known C code. But obviosly
it doesn't.
Well, Empire Earth doesn't crash on return from Main_DirectDraw_Release, but
quite a bit later in its own code. It tries to call
Main_DirectDrawSurfaceRelease for an allready freed surface: From the crash
dump:
First chance exception: page fault on read access to 0xaaaaaaaa in 32-bit code
(0xaaaaaaaa).
Register dump:
CS:0073 SS:007b DS:007b ES:007b FS:003b GS:0033
EIP:aaaaaaaa ESP:7fc1fc58 EBP:7f2703e0 EFLAGS:00210293( - 00 RISA1C)
EAX:7fe049f0 EBX:00000001 ECX:7fe01b38 EDX:7803a11c
ESI:7f288aa0 EDI:7f288acc
Stack dump:
0x7fc1fc58: 7dbbd6d7 7fe049f0 7f288aa0 7f2703e0
0x7fc1fc68: 00000001 7dbb1c20 7dbc59b4 00000000
0x7fc1fc78: 7f9f24fc 00000001 7fa24015 7dbc5998
0x7fc1fc88: 7fa23451 7dbc5998 7f270838 00000000
0x7fc1fc98: 00000002 7dbb9a14 7fa6bda1 00000000
0x7fc1fca8: 7fc1fd04 00000000 0052ba8b 5c575f20
Backtrace:
=>1 0xaaaaaaaa (0x7f2703e0)
2 0x00000000 (0x00000000)
0xaaaaaaaa: addb %al,0x0(%eax)
The surface to to release is in %eax and the 2nd element on the stack:
7fe049f0.
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