[B2-devel] MacOS X & VOSF & segfaults in select()

[<gb...@di...>]

Hi,

I finally implemented vm_* functions thus causing configure test
programs to pass and enabling VOSF. Everything compiles correctly. The
problem is that after a few hits to the sigsegv handler (and probably
VideoRefresh()), I get some null pointer deferencing for IP = 0x700118.
Disassembling that portion of code with gdb leads to select().

I have no other clue so far. We can live without VOSF under MacOS X but
still do direct addressing because that's the same endianess and the
same RGB mask values between native and emulated environments. However,
that's a special case and I would find changing the configure script to
reflect that is simply dirty.

I wonder if I'd better use Mach vm_allocate/vm_deallocate/vm_protect
functions instead of trusting mmap() and the like...