[Bug 14822] Traktor: Version 3.4 doesn't start anymore

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=14822





--- Comment #16 from Anastasius Focht <focht at gmx.net>  2008-09-21 16:15:19 ---
Hello,

--- snip trace log ---
..
003d:Ret  KERNEL32.InitializeCriticalSection() retval=00000001 ret=00648f29
003d:trace:seh:raise_exception code=c0000005 flags=0 addr=0x55cf5c
003d:trace:seh:raise_exception  info[0]=00000000
003d:trace:seh:raise_exception  info[1]=ffffffff
003d:trace:seh:raise_exception  eax=01ec5cd8 ebx=0032fc3c ecx=01ec5cd8
edx=ffffffff esi=01ec5ca8 edi=01ec5cd8
003d:trace:seh:raise_exception  ebp=0032fc30 esp=0032fc10 cs=0073 ds=007b
es=007b fs=0033 gs=003b flags=00210286
003d:trace:seh:call_stack_handlers calling handler at 0x9358f8 code=c0000005
flags=0 
--- snip trace log ---

The crash is due to "movaps" SSE instruction which of course bails if it
encounters non 128-bit (16 byte) aligned memory in either source or destination
operand referring to a memory location.

--- snip app code ---
..
0055CF5A    8BC1                    mov eax, ecx
0055CF5C    0F2980 90000000         movaps dqword ptr ds:[eax+90], xmm0
--- snip app code ---

The allocation itself actually turned out to be a huge memory chunk, allocated
early at startup.
Various program code offsets data areas from this chunk later.

--- snip ---
..
003d:Ret  setupapi.SetupDiDestroyDeviceInfoList() retval=00000001 ret=0073ac9a
003d:Call KERNEL32.GetLastError() ret=0073aca0
003d:Ret  KERNEL32.GetLastError() retval=00000103 ret=0073aca0
..
003d:Call ntdll.RtlAllocateHeap(01da0000,00000000,067fb640) ret=0079f040
003d:Ret  ntdll.RtlAllocateHeap() retval=01eb0028 ret=0079f040 
--- snip ---

Changing ntdll's default heap block alignment from 8 to 16 bytes boundary and
fixing in-use arena (by adding dummy list entry to struct or fixing offset
calc) to avoid unaligned arena pointers makes this app successfully load.
This fix might be useful for other apps which use SSE instructions and
"mysteriously" crash.

---

Another Traktor application called "Service Center" used for activation and
updates also suffers from a bug (wininet).
If you file the service center bug separately, you get the solution too ;-)

Regards


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