[Bug 20380] Heroes of Might and Magic III hangs

http://bugs.winehq.org/show_bug.cgi?id=20380

--- Comment #76 from Michael Builov   2010-02-13 20:03:47 ---
(In reply to comment #74)
sorry, i made errors in my test program (sig_test.c)
Instead of getpid() and kill() i had to use gettid() and tkill(). Here they
are:

#include <sys/syscall.h>
typedef int tid_t;

static tid_t gettid(void)
{
    tid_t tid = (tid_t)syscall(SYS_gettid);
    return tid;
}

static int tkill(tid_t tid, int sig)
{
    int err = syscall(SYS_tkill, tid, sig);
    return err;
}

With gettid() and tkill() the test completed successfully.

So send_thread_signal() in wine-1.1.38/server/ptrace.c should work properly.
And so may be i was wrong about "segv_handler was interrupted by usr1_handler".
But backtrace of faulted usr1_handler looks very strange:

#0  0x7efb5800 in ?? ()
#1  <signal handler called>
#2  0x7efb47e0 in ?? ()
#3  0xdeadbabe in ?? ()
#4  0x00329c3c in ?? ()
#5  0x00329970 in ?? ()
#6  0x0001003f in ?? ()
#7  0x00000000 in ?? ()

i found that "0xdeadbabe" number used in
wine-1.1.38/dlls/ntdll/signal_i386.c:setup_exception_record() so very likely
that wine has corrupted the stack, not Homm3.