Valgrind false positive or?

[Vitaliy Margolen]

Trying to understand what is that valgrind doesn't like?

==22938== Invalid write of size 1
==22938==    at 0x4024D55: memcpy (mc_replace_strmem.c:402)
==22938==    by 0x7BC64405: setup_exception_record (signal_i386.c:795)
==22938==    by 0x7BC65793: segv_handler (signal_i386.c:1310)
==22938==    by 0x419160F: (within /lib/libpthread-2.6.1.so)
==22938==  Address 0x7f22c7de is not stack'd, malloc'd or (recently) free'd

http://source.winehq.org/source/dlls/ntdll/signal_i386.c#L756
http://source.winehq.org/source/dlls/ntdll/signal_i386.c#L1093
http://source.winehq.org/source/dlls/ntdll/signal_i386.c#L1310

Everything seems to be correct. Any ideas?

Vitaliy.